A Trivia Quiz On Horticulture!

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  • 1/88 Questions

    When a plant does not recover from a lack of water it is called PWP. what does this stand for

    • Perfect wilting point
    • Peaches with pits
    • Permanent wilting point
    • Plastids without promise
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About This Quiz

If you’re passionate about gardening and plant care, the Horticulture Trivia Quiz is perfect for testing your knowledge of plant science and horticultural practices. This quiz covers a wide range of topics, including plant anatomy, soil management, pest control, plant propagation, and landscape design.

With questions ranging from easy to challenging levels, you'll explore the science behind gardening, discover tips for sustainable cultivation, and learn about the various species and their requirements. Dive into the quiz to enhance your horticulture skills, gain new insights into plant care, and become more proficient in managing your garden or green space. Take the quiz now and see how green your thumb really is!

A Trivia Quiz On Horticulture! - Quiz

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  • 2. 

    What does the term deciduous mean

    • A succulent plant without true wood

    • A plant that is hardly in the tropics

    • A plant that loses its leaves for at least part of the year

    • A plant that requires acid soil for best growth

    Correct Answer
    A. A plant that loses its leaves for at least part of the year
    Explanation
    Deciduous refers to a plant that loses its leaves for at least part of the year. This term is commonly used to describe trees or shrubs that shed their leaves in autumn as a response to changes in temperature and light. The shedding of leaves helps these plants conserve energy and protect themselves from harsh winter conditions. In contrast, evergreen plants retain their leaves year-round.

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  • 3. 

    Asexual methods of propogation are used to maintain or produce specific plant clones of woody plants

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Asexual methods of propagation, such as grafting or cutting, are commonly used in horticulture to maintain or produce specific plant clones of woody plants. This is because these methods allow for the reproduction of plants with desirable traits, such as disease resistance or specific flower color, without relying on seeds. By using asexual propagation, growers can ensure that the new plants will be genetically identical to the parent plant, thus preserving the desired characteristics. Therefore, the statement is true.

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  • 4. 

    Which of the following techniques is best for mulching newly planted trees

    • A mound of wood chips piled up on the trunk of the tree and spreading out a couple feet from the base of the tree

    • A layer of composed bark 2 to 3 inches deep forming a 3 to 4 foot circle around the base of the tree and a few inches away from the trunk

    • A 4 foot circle of mulch 6 to 8 inches deep surrounding the base of the tree

    Correct Answer
    A. A layer of composed bark 2 to 3 inches deep forming a 3 to 4 foot circle around the base of the tree and a few inches away from the trunk
    Explanation
    The best technique for mulching newly planted trees is to use a layer of composed bark. This layer should be 2 to 3 inches deep and form a 3 to 4 foot circle around the base of the tree, a few inches away from the trunk. This technique helps to retain moisture in the soil, regulate soil temperature, and suppress weed growth. It also allows for proper air and water circulation to the tree's roots.

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  • 5. 

    If you were having tubers for dinner, you would be eating

    • Extra long hot dogs

    • A TV dinner

    • Potatoes

    • Onion rings

    Correct Answer
    A. Potatoes
    Explanation
    The correct answer is potatoes because tubers are a type of root vegetable, and potatoes are a common example of tubers. They are often consumed as a part of meals, such as dinner. Therefore, if you were having tubers for dinner, you would be eating potatoes.

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  • 6. 

    To maintain the highest quality fruit and vegetables for post-harvest storage one needs to reduce the levels of nitrogen fertilization at the end of the production cycle.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    To maintain the highest quality fruit and vegetables for post-harvest storage, reducing the levels of nitrogen fertilization at the end of the production cycle is necessary. Excessive nitrogen fertilization can lead to an overgrowth of foliage, which can result in a decrease in the quality and shelf life of the produce. By reducing nitrogen levels towards the end of the production cycle, the focus can shift towards fruit and vegetable development, resulting in better quality produce that can be stored for longer periods without compromising its freshness and taste.

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  • 7. 

    Dwarf apple trees are most often produced by grafting and or budding.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Dwarf apple trees are commonly produced through grafting and budding techniques. Grafting involves joining a scion (the desired apple variety) onto a rootstock (a different apple variety with desired dwarfing characteristics). Budding is a similar technique where a bud from the desired apple variety is inserted into the rootstock. These methods allow for the propagation of dwarf apple trees, which have shorter stature and are easier to manage and harvest. Therefore, the statement is true.

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  • 8. 

    The growing season for a given area is determined by

    • The days between the last frost n the falla nd the last frost in the spring

    • The days between the last frost in the spring and the first frost in the fall

    Correct Answer
    A. The days between the last frost in the spring and the first frost in the fall
    Explanation
    The growing season for a given area is determined by the days between the last frost in the spring and the first frost in the fall because these are the dates that mark the period when temperatures are consistently warm enough for plants to grow. The last frost in the spring signifies the end of winter and the beginning of warmer weather, while the first frost in the fall indicates the start of colder temperatures and the end of the growing season. The time in between these two frosts is when plants have the best conditions to thrive and grow.

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  • 9. 

    Which plant nutrient is needed in the greatest amount for rapid vegetative growth of turf grasses

    • Nitrogen

    • Phosphorous

    • Potassium

    • Sulfur

    Correct Answer
    A. Nitrogen
    Explanation
    Nitrogen is needed in the greatest amount for rapid vegetative growth of turf grasses. Nitrogen is an essential nutrient for plants and plays a crucial role in promoting leaf and stem growth. It is a major component of chlorophyll, which is responsible for photosynthesis and the production of energy for plant growth. Turf grasses require a significant amount of nitrogen to maintain their green color, promote vigorous growth, and establish a dense and healthy turf. Phosphorus, potassium, and sulfur are also important nutrients for plant growth, but they are needed in lesser amounts compared to nitrogen.

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  • 10. 

    High tunnels are used to extend the growing season and to produce higher quality crops

    • True

    • False

    Correct Answer
    A. True
    Explanation
    High tunnels are structures made of plastic or other translucent materials that are used in agriculture to extend the growing season. By providing protection from harsh weather conditions, high tunnels create a microclimate that allows crops to be grown earlier in the spring and later in the fall. This extension of the growing season leads to higher yields and allows farmers to produce crops that are of higher quality. Therefore, the statement that high tunnels are used to extend the growing season and produce higher quality crops is true.

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  • 11. 

    How can you easily tell if a plant part is a root or a stem

    • By looking for chlorophyll, stem tissue will always be a little green

    • Whether the plant part is growing above or below ground

    • By looking for root hairs

    • The presence of nodes and internodes

    Correct Answer
    A. The presence of nodes and internodes
    Explanation
    The presence of nodes and internodes can easily distinguish between a root and a stem. Nodes are the points on a plant stem where leaves, branches, or buds emerge, while internodes are the spaces between nodes. Roots do not have nodes or internodes, as they primarily function to anchor the plant and absorb water and nutrients from the soil. Stems, on the other hand, have nodes and internodes as they support the plant and transport water, nutrients, and sugars between different parts of the plant. Therefore, the presence of nodes and internodes is a reliable characteristic to differentiate between roots and stems.

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  • 12. 

    Which plants are most often used on green roofs due to their tolerance to extreme heat and drought?

    • Native grasses

    • Bulb crops

    • Herbaceous perennials that go dormant in the winter

    • Sedums and other suculents

    Correct Answer
    A. Sedums and other suculents
    Explanation
    Sedums and other succulents are most often used on green roofs due to their tolerance to extreme heat and drought. These plants have adapted to arid environments by storing water in their leaves, stems, and roots, allowing them to survive in conditions with limited water availability. Their ability to withstand high temperatures and dry conditions makes them ideal for green roofs, where they are exposed to direct sunlight and may not receive regular watering. Additionally, sedums and succulents have shallow root systems, which makes them suitable for the shallow growing media typically found on green roofs.

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  • 13. 

    Apical dominance can be broken by

    • Spraying the plant with auxin

    • Removing the terminal bud

    • Removing the lateral buds

    • Using a fertilizer with high levels of nitrogen

    Correct Answer
    A. Removing the terminal bud
    Explanation
    Removing the terminal bud breaks apical dominance because the terminal bud produces a hormone called auxin that inhibits the growth of lateral buds. By removing the terminal bud, the inhibitory effect of auxin is eliminated, allowing the lateral buds to grow and develop into branches.

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  • 14. 

    Which of the follwong would be the best location for a vegetable garden

    • Morning sun

    • Afternoon sun

    • All day full sun

    • All day semi shade

    Correct Answer
    A. All day full sun
    Explanation
    A vegetable garden requires ample sunlight to thrive. Full sun exposure throughout the day provides the necessary amount of light for photosynthesis, which is crucial for plant growth and the production of fruits and vegetables. With all day full sun, the plants will receive sufficient energy to produce healthy and abundant harvests. Morning sun or afternoon sun alone may not provide enough sunlight for optimal growth, while all day semi-shade will restrict the amount of light reaching the plants, resulting in poor growth and yield.

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  • 15. 

    When mowing turf, one should never cute more than one third of the toal height

    • True

    • False

    Correct Answer
    A. True
    Explanation
    When mowing turf, it is important to never cut more than one third of the total height. This is because cutting more than one third can cause stress to the grass and weaken its root system, making it more susceptible to diseases and pests. By only cutting one third, the grass can recover quickly and maintain its health and appearance.

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  • 16. 

    A tree shaded lanscape is often 20 to 25 degrees cooler than a landscape without trees

    • True

    • False

    Correct Answer
    A. True
    Explanation
    A tree shaded landscape is often 20 to 25 degrees cooler than a landscape without trees because trees provide shade, which blocks direct sunlight and reduces the amount of heat absorbed by the ground. This creates a cooler microclimate in the shaded area, providing relief from the heat. Additionally, trees release moisture through a process called transpiration, which further cools the surrounding air. Therefore, it is true that a tree shaded landscape is often significantly cooler than a landscape without trees.

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  • 17. 

    A plastic bag is used to cover cuttings while they root to

    • Kieep the media warmer

    • Prevent lose of plant nutrients

    • Increase the air temperature

    • Increase the humidity around the cuttings

    Correct Answer
    A. Increase the humidity around the cuttings
    Explanation
    A plastic bag is used to cover cuttings while they root to increase the humidity around the cuttings. This helps to create a moist environment, which is beneficial for the rooting process. The increased humidity prevents the cuttings from drying out and promotes the development of roots.

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  • 18. 

    Seeds are scarified to

    • Disinfect the seeds before germination

    • Break seed dormancy with a cold moist period

    • Enable water to enter through a hard seed coat

    • Improve long term storage of the seed

    Correct Answer
    A. Enable water to enter through a hard seed coat
    Explanation
    Seeds are scarified to enable water to enter through a hard seed coat. Scarification is a process in which the hard outer covering of a seed is broken or weakened, allowing water to penetrate and initiate germination. Some seeds have a hard coat that prevents water absorption, and scarification helps to overcome this barrier. By enabling water to enter the seed, scarification promotes germination and ensures the successful growth of the plant.

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  • 19. 

    Why do bananas not ripen on their route from the tropics to europe or america

    • They do ripen, but the sailors eat them to prevent Scurvy

    • The sea water air make the fruit remain green

    • Ventilation prevents ethylene build up and initiating the ripening process

    • Bananas have been genetically engineered so that they will not ripen until 21 days after harvesting

    Correct Answer
    A. Ventilation prevents ethylene build up and initiating the ripening process
    Explanation
    The correct answer is that ventilation prevents ethylene build up and initiating the ripening process. Ethylene is a natural plant hormone that triggers the ripening process in fruits, including bananas. Adequate ventilation during transportation allows for the dissipation of ethylene gas, preventing its build-up and delaying the ripening process. This is why bananas do not ripen during their route from the tropics to Europe or America.

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  • 20. 

    Which soil pH would be considered the most alkaline

    • 4.5

    • 5.3

    • 6.5

    • 7.2

    Correct Answer
    A. 7.2
    Explanation
    A soil pH of 7.2 would be considered the most alkaline because pH measures the acidity or alkalinity of a substance on a scale of 0 to 14. A pH value below 7 is considered acidic, while a value above 7 is considered alkaline. Therefore, 7.2 is higher than the neutral pH of 7, indicating that the soil is more alkaline than acidic.

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  • 21. 

    What is the difference between dioecious and monoecious

    • Monoeciou plnats have both staminate and pistillate flowers on the same plant whereas dioecious plants have only staminate or pistillate flowers on individual plants

    • Monoecious plants have only a single food storage organ in their seeds

    • Monoecious plants are herbaceous and dioecious plants are woody

    • Monoecious plants live only one year and dioecious plants live for only 2 years

    Correct Answer
    A. Monoeciou plnats have both staminate and pistillate flowers on the same plant whereas dioecious plants have only staminate or pistillate flowers on individual plants
    Explanation
    The difference between dioecious and monoecious plants lies in their reproductive structures. Monoecious plants have both male (staminate) and female (pistillate) flowers on the same plant, allowing for self-fertilization. On the other hand, dioecious plants have either male or female flowers on separate individual plants, requiring cross-pollination between plants for reproduction.

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  • 22. 

    Which of the following is a useful function of ethylene in the horticultural industry

    • Reduces fungal infections

    • Increases the life of cut flowers

    • Ripening of fruits such as bananas

    • All of the above

    Correct Answer
    A. Ripening of fruits such as bananas
    Explanation
    Ethylene is a useful function in the horticultural industry as it promotes the ripening of fruits, such as bananas. Ethylene gas triggers a series of biochemical reactions in the fruit, leading to changes in color, texture, and flavor. This process is crucial for fruits to reach their optimal ripeness, making them more appealing and ready to eat. Therefore, ethylene's role in ripening fruits is an important function in the horticultural industry.

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  • 23. 

    The training of fruit trees to a wall is called

    • Espalier

    • Pollarding

    • Bonsai

    • Stooling

    Correct Answer
    A. Espalier
    Explanation
    The correct answer is espalier. Espalier is a horticultural technique where fruit trees are trained to grow flat against a wall or trellis. This method allows for better space utilization and easier maintenance of the trees. It also helps in maximizing sunlight exposure and promoting better fruit production.

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  • 24. 

    Compaction of a soil which results in poor drainage and root growth is due to the breaking of the structural components of a soil into smaller sizes

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The given statement is true. When a soil undergoes compaction, the structural components of the soil are broken down into smaller sizes. This leads to a decrease in pore spaces within the soil, which in turn hinders the drainage of water. Poor drainage can result in waterlogging, which is detrimental to root growth as it deprives the roots of oxygen. Therefore, the breaking of the structural components of a soil into smaller sizes due to compaction can indeed result in poor drainage and hinder root growth.

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  • 25. 

    Strawberries are generally mulched during the winter in this climate to

    • Keep the soil dry in the winer

    • Prevent the soil from freezing

    • Reduce frost heaving of the plants

    • Reduce sunscald

    Correct Answer
    A. Reduce frost heaving of the plants
    Explanation
    Mulching strawberries during the winter in this climate helps to reduce frost heaving of the plants. Frost heaving occurs when the soil freezes and thaws repeatedly, causing the plants to be pushed out of the ground. By mulching, a layer of insulation is created that helps to regulate the temperature of the soil, preventing it from freezing and thawing too rapidly. This reduces the likelihood of frost heaving, which can damage the plants and their root systems.

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  • 26. 

    Which would be the best conditions to store seed that does not have a dormancy condition for sowing the following year

    • In a sealed containger with damp potting soil at 70 degress

    • In a sealed containger wtih damp potting soil at 40 degress

    • In a dry sealed container at 70 degrees

    • In a dry sealed container at 40 degrees

    Correct Answer
    A. In a dry sealed container at 40 degrees
  • 27. 

    The caliper of a tree refers to

    • The height of the tree

    • The diameter of the trunk at 4.5 feet above the ground

    • The length of the longest branch

    • The size of the root ball

    Correct Answer
    A. The diameter of the trunk at 4.5 feet above the ground
    Explanation
    The caliper of a tree refers to the diameter of the trunk at 4.5 feet above the ground. This measurement is commonly used in horticulture and arboriculture to determine the size and health of a tree. By measuring the trunk diameter at a standard height, it allows for consistent comparisons between different trees. The caliper measurement is important for various purposes such as selecting the right tree for a specific location, determining the appropriate size of a tree hole, or assessing the tree's growth rate.

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  • 28. 

    To raise the soil pH and lower the acidity one would

    • Add ground limestone

    • Add sulfur

    • Add nitrogen

    • Add vinegar

    Correct Answer
    A. Add ground limestone
    Explanation
    Adding ground limestone to the soil helps to raise the pH level and reduce acidity. Limestone contains calcium carbonate, which reacts with the acidic components in the soil, neutralizing them and increasing the pH. This process is known as liming. By adding ground limestone, the soil becomes less acidic, creating a more favorable environment for plant growth.

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  • 29. 

    Hydroponics, a soil-less cultivation technique, falls under the domain of horticulture.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Horticulture encompasses the science and art of cultivating fruits, vegetables, flowers, and ornamental plants. Hydroponics, which involves growing plants in nutrient-rich water solutions instead of soil, is a specialized technique within horticulture, focusing on intensive plant cultivation in controlled environments.

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  • 30. 

    When removing large tree brances one should

    • Cut as close to the remaining branch as possible

    • Cut just outside the branch collar

    • Cut inside the branch collar

    • Cut leaving a 2 inch stub

    Correct Answer
    A. Cut just outside the branch collar
    Explanation
    When removing large tree branches, it is recommended to cut just outside the branch collar. The branch collar is the swollen area where the branch attaches to the trunk or main branch. By cutting just outside the branch collar, the tree's natural healing process is not disrupted, and it can effectively seal off the wound. This helps to prevent decay and disease from entering the tree, promoting its overall health and longevity. Cutting too close to the remaining branch or inside the branch collar can cause damage and hinder the tree's ability to heal properly. Leaving a stub can also lead to decay and insect infestation.

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  • 31. 

    Why is latin used for scientific classification

    • Linnaeus spoke only latin

    • Latin is a dead language that doesn't change

    • Linnaeus was obsessed with sex and latin is a romantic language

    Correct Answer
    A. Latin is a dead language that doesn't change
    Explanation
    Latin is used for scientific classification because it is a dead language that doesn't change. This ensures consistency and avoids confusion in the naming of organisms. Since Latin is no longer spoken as a native language, it remains unchanged and unaffected by modern linguistic developments. This stability allows scientists from different countries and backgrounds to understand and communicate using the same scientific names, facilitating global collaboration and understanding in the field of taxonomy.

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  • 32. 

    The use of fans and helicopters to control frost is based on the principle that

    • Keeping the plant cool is good fo its stomates

    • Warm air accumulates near the soil

    • Rapid air movement raises the humidity around the plant

    • Mixing the warm air above with the cold air at the surface raises the temperature surrounding the plants

    Correct Answer
    A. Mixing the warm air above with the cold air at the surface raises the temperature surrounding the plants
    Explanation
    The use of fans and helicopters to control frost is based on the principle that mixing the warm air above with the cold air at the surface raises the temperature surrounding the plants. By creating air movement, the warm air is brought down to the surface where the plants are located, and the cold air is lifted upwards. This mixing of warm and cold air helps to increase the temperature around the plants, preventing frost formation and protecting them from cold damage.

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  • 33. 

    The fence surrounding the hort research center and green house on campus is used to control which of the following

    • Woodchucks

    • Deer

    • Rabbits

    • Students

    Correct Answer
    A. Deer
    Explanation
    The fence surrounding the horticulture research center and greenhouse on campus is used to control deer. Deer can cause significant damage to plants and crops, so the fence acts as a barrier to prevent them from entering the area. By keeping deer out, the fence helps protect the research center and greenhouse from potential destruction and allows the plants to grow undisturbed.

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  • 34. 

    Chrysanthemums are pinched to

    • Reduce the number of days until flowering

    • Produce a taller plant

    • To increase the number of flowers

    • All the above

    Correct Answer
    A. To increase the number of flowers
    Explanation
    Pinching chrysanthemums refers to the act of removing the growing tips of the plant. By doing this, the plant is encouraged to produce more lateral shoots, which in turn leads to an increase in the number of flowers. Therefore, pinching chrysanthemums helps to increase the number of flowers on the plant.

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  • 35. 

    When a strawberry plant produces runners

    • They are reproducing asexually

    • They have responses similar to joggers who get their second wind

    • They are beginning to flower

    • They are about to move the mother plant to a more suitable site for nutrient uptake

    Correct Answer
    A. They are reproducing asexually
    Explanation
    When a strawberry plant produces runners, it is reproducing asexually. Runners are long stems that grow out from the mother plant and develop roots at their tips. These roots then grow into new strawberry plants, creating clones of the mother plant. This method of reproduction does not involve the exchange of genetic material with another plant, hence it is considered asexual reproduction.

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  • 36. 

    A root or shoot arising from any place other than the seed is called

    • Adventitious

    • Axillary

    • Accessory

    • Fortuitious

    Correct Answer
    A. Adventitious
    Explanation
    Adventitious refers to a root or shoot that arises from any place other than the seed. This means that it is not a natural or expected growth, but rather a result of a random or unexpected occurrence. It could arise from a stem, leaf, or even a cut or wounded area of a plant. This term is used to describe the growth of roots or shoots in unusual or unexpected locations.

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  • 37. 

    Extensive Green Roofs have media layers greater than 6 inches and often have small trees and shurbs planted on them.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Extensive Green Roofs typically have media layers less than 6 inches and are designed to support low-growing vegetation like sedums and grasses, rather than trees and shrubs. Therefore, the statement that Extensive Green Roofs often have small trees and shrubs planted on them is false.

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  • 38. 

    A tree with a wide branch (crotch) angles will have a stronger branch structure than one with narrow branch angles.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    A tree with wide branch angles will have a stronger branch structure because the wider angles allow for better weight distribution and support. This means that the branches are less likely to break or snap under the weight of leaves, fruits, or strong winds. Narrow branch angles, on the other hand, create weak attachment points that are more prone to failure. Therefore, a tree with wide branch angles will generally have a stronger and more stable branch structure.

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  • 39. 

    Vernalization is the process whereby

    • A plant goes through a specific cold period prior to flowering

    • A plant flowers better after receiving long day treatments

    • Vernals appear from the nodes

    • A plant flowers after receiving short days and long nights

    Correct Answer
    A. A plant goes through a specific cold period prior to flowering
    Explanation
    Vernalization is the process whereby a plant goes through a specific cold period prior to flowering. This cold period triggers physiological changes in the plant, such as the activation of flowering genes, which allows it to flower when conditions become favorable. This process is particularly important for plants that are adapted to temperate climates, as it ensures that they flower during the appropriate season.

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  • 40. 

    The major advantage of green roofs in urban areas is the retention of rainwater.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Green roofs have the major advantage of retaining rainwater in urban areas. This is because the vegetation and soil on the roof absorb and store rainwater, reducing stormwater runoff and the burden on drainage systems. By retaining rainwater, green roofs help to mitigate the effects of urban heat islands, reduce the risk of flooding, and provide a sustainable water source for the plants on the roof. Additionally, the retention of rainwater on green roofs can also contribute to improved air quality and energy efficiency in buildings.

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  • 41. 

    Hedges are best maintained when they are pruned so that the

    • Top is wider than the bottom

    • Bottom is wider than the top

    • The sides are perpendicular to the top and bottom

    • None of the above

    Correct Answer
    A. Bottom is wider than the top
    Explanation
    Hedges are best maintained when they are pruned so that the bottom is wider than the top. This is because pruning the bottom wider helps to ensure that sunlight reaches all parts of the hedge, promoting healthy growth and preventing the lower branches from becoming shaded and dying off. Additionally, having a wider bottom helps to create a more stable and visually appealing shape for the hedge.

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  • 42. 

    Spraying strawberry plants with water during freezing temperatures is one method of preventing damage to the blossoms during late spring frosts

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Spraying strawberry plants with water during freezing temperatures is indeed a method of preventing damage to the blossoms during late spring frosts. This technique, known as "sprinkler irrigation," works by creating a thin layer of ice on the plants, which helps to insulate them from the freezing temperatures. As the water freezes, it releases latent heat, keeping the temperature around the plants slightly above freezing. This protective layer of ice acts as a barrier, preventing the blossoms from being damaged by the cold temperatures. Therefore, the statement is true.

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  • 43. 

    A tuber is composed mostly of stem tissue

    • True

    • False

    Correct Answer
    A. True
    Explanation
    A tuber is a swollen underground stem that stores nutrients for the plant. It is composed mostly of stem tissue, which differentiates it from other plant structures like roots or leaves. The stem tissue in a tuber helps in storing carbohydrates and other essential nutrients, allowing the plant to survive in adverse conditions. Therefore, the statement "a tuber is composed mostly of stem tissue" is true.

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  • 44. 

    One of the major problems with container produced trees is

    • Circling roots

    • Reduced cold hardiness

    • Increased labor costs during harvesting

    • All the above

    Correct Answer
    A. Circling roots
    Explanation
    Container produced trees often suffer from circling roots. This occurs when the roots start growing in a circular pattern within the container, instead of spreading outwards. Circling roots can lead to girdling, where the roots wrap around the trunk and restrict the flow of water and nutrients. This can result in stunted growth, poor establishment, and even death of the tree. Therefore, circling roots are a major problem associated with container produced trees.

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  • 45. 

    Evergreens

    • Never lose their leaves

    • Lose all of their leaves each autumn

    • Lose some older leaves each summer, but retain the newest leaves for at least one year

    • Leaves are always needle like

    Correct Answer
    A. Lose some older leaves each summer, but retain the newest leaves for at least one year
    Explanation
    Evergreens are a type of tree or shrub that retains its leaves throughout the year. However, they do shed some of their older leaves during the summer while retaining the newest leaves for at least one year. This allows the evergreens to continuously renew their foliage and maintain a green appearance even during the winter months. Unlike deciduous trees, which lose all of their leaves in autumn, evergreens are able to maintain their green color year-round. Additionally, evergreen leaves are typically needle-like in shape, which helps to reduce water loss and protect against freezing temperatures.

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  • 46. 

    The best time to prune a shrub which flowers for a week to ten days in mid- April would be

    • Late march

    • Late april

    • July

    • November

    Correct Answer
    A. Late april
    Explanation
    Late April would be the best time to prune a shrub that flowers for a week to ten days in mid-April because pruning immediately after the flowering period allows the shrub to develop new growth and set buds for the following year without interrupting the current blooming cycle. Pruning in late March may remove potential flowers, while pruning in July or November may disrupt the shrub's growth and flowering patterns.

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  • 47. 

    Cutting an entire shrub back to 6 inches above the ground is called _______ pruning.

    • Stubbing

    • Renewal

    • Heading back

    • Rejuvenation

    Correct Answer
    A. Rejuvenation
    Explanation
    The correct answer is rejuvenation. Rejuvenation pruning involves cutting an entire shrub back to a height of 6 inches above the ground. This pruning technique helps to stimulate new growth and rejuvenate the shrub, resulting in healthier and more vigorous plants. It is often done to revitalize overgrown or damaged shrubs and promote better flowering or fruit production.

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  • 48. 

    What conditions best favor long term commercial storage of fresh apples

    • High oxygen and low carbon dioxide levels

    • High temperature and low oxygen levels

    • Low temperature, low oxygen, and high carbon dioxide levels

    • Low temperature, high oxygen, and low carbon dioxide levels

    Correct Answer
    A. Low temperature, low oxygen, and high carbon dioxide levels
    Explanation
    Low temperature, low oxygen, and high carbon dioxide levels are the best conditions for long-term commercial storage of fresh apples. Low temperature slows down the ripening process and helps to maintain the freshness of the apples. Low oxygen levels reduce respiration and prevent the apples from over-ripening. High carbon dioxide levels inhibit the growth of microorganisms and fungi, reducing the risk of spoilage. This combination of conditions helps to extend the shelf life of the apples and maintain their quality for a longer period of time.

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  • 49. 

    Fruits and vegetables that are sensitive to ethylene are stored under which of the following conditions to extend their storage life.

    • High oxygen levels

    • Low oxygen levels

    • Low carbon dioxide levels

    • High nitrogen levels

    Correct Answer
    A. Low oxygen levels
    Explanation
    Fruits and vegetables that are sensitive to ethylene are stored under low oxygen levels to extend their storage life. This is because ethylene is a natural plant hormone that accelerates the ripening process and can cause fruits and vegetables to spoil more quickly. By reducing the oxygen levels in the storage environment, the production of ethylene is minimized, thus slowing down the ripening process and extending the shelf life of these sensitive produce items.

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Quiz Review Timeline (Updated): Dec 23, 2024 +

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  • Current Version
  • Dec 23, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 28, 2010
    Quiz Created by
    Megan Christine

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