50 Questions in Introduction to Horticulture - Exam 3 | HORT 100, Exams of Gardening and Horticulture

Download 50 Questions in Introduction to Horticulture - Exam 3 | HORT 100 and more Exams Gardening and Horticulture in PDF only on Docsity! HORT 100 Exam 3 HORT 100 - Exam 3 - -- Name ________________________________ Answer each question correctly, leave no blanks, if necessary you can offer written explanations for your choice of an answer. Write your answer near its respective question. I. Multiple Choice, choose the best answer, circle the letter corresponding to that answer, and write that letter in the space provided (2 points each). Leave no blanks. _____ 1. Where is a good place to store seeds? a) you can't store seeds. Once a packet is opened the seeds are no good; b) in a dark cool closet without light; c) In a jar with dried milk in the bottom. Put the jar in a refrigerator; d) in the junk drawer next to the stove; e) in the garage, f) in the basement. _____ 2. A bract is a) a tool used for grafting, b) a seasonal candy produced by Brach's, c) a modifed leaf, d) a cane toad racing track, e) a type of palm stem. _____ 3.What famous movie character does the CO2 generator most closely resemble? a) Woody Allen, b) R2D2, c) Lassie, d) Kevin Costner. e) George Burns, f) Lucille Ball, g) Clint Eastwood. _____ 4. How are M9 rootstocks propagated? a) stem cuttings, b) mound layers, c) leaf cuttings, d) tip layers, e) leaf bud cuttings. _____ 5. Which of these is not associated with the fan and pad system? a) it raises the humidity in the greenhouse, b) the fan draws air across the room, c) the temperature is reduced by 10 to 15o F, d) it adds carbon monoxide to the room, e) water drips down the pads from a pipe, f) it is a cooling system used to cool the University of Illinois greenhouses, g) all of these are important aspects of the fan and pad system. ______ 6. ______ 7. Which is incorrectly defined in terms of our lectures this semester? a) corm: solid swollen part of the stem, b) stolon: a shoot which grows above ground, horizontal to the soil, c) rhizome: a horizontal underground stem that sends up leaves or stems from nodes, d) slips: adventitious shoot from a white potato, e) offsets: a lateral shoot that develops from the base of the main stem. _____ 8. If rodents gnaw the bark of your tree, your trees eventually will suffer root damage. To help your tree survive a serious attack a) chop down the tree, there is no hope, b) prune all of the shoots from your tree as soon as you notice, c) wrap your tree with duct tape, d) use bridge grafting to save your tree, e) leave the tree alone, it will recover by itself, f) none of these. _____ 9. Double fertilization results in a) 2n zygote and 3n endosperm, b) twice as much growth through the addition of 200 ppm N, c) polyembryony, d) apomixis, e) 3n zygote and 2n endosperm, f) two or more seeds, f) is a Wrigley gum commercial. _____ 10. The reason that many greenhouse employees are blue is a) they eat blue flowers, b) they are sad, c) they are in regular contact with greenhouse fertilizers, d) they are low in oxygen, e) they glass blocks out so much UV that their skin does not develop proper pigmentation, f) killing smurfs. _____ 11. When is cleft grafting used in favor of other types of grafting? a) when the tree has been damaged and is need of repair; b) when healthy wood is in close proximity of damaged wood and they can be easily grafted together; c) when the trunk needs support; d) when the computer control system in the greenhouse is down and an alternate grafting system is needed; e) when the rootstock is much larger than the scion; f) when you only have a blunt knife to work with. _____ 12. Which of these is used to control powdery mildew in a greenhouse? a) sulfur burners, b) CO2 burners, c) NO2 burners, d) back burners, e) butane burners, f) bunsen burner, g) high volkage. _____ 13. Deer love to nibble on baby trees; a good way to protect your trees from deer is to a) play loud music (this also scares off the birds which will eat your crop), b) hang a bar of sleazy soap around the tree, c) chop down the tree, its hopeless, d) spray the tree with hairspray, e) use tankage, f) use human hair. _____ 14. Scarification is required when a) a plant has too many branches, b) the seed is moldy, c) the leaf has a bacterial infection, d) the seed coat is too thick and hard, e) the seed coat is too thin. _____ 15. The pore through which the sperm enters the egg sac is known as the a) stigma, b) micropyle, c) macro nutrient, d) zygote, e) style, f) cassel. _____ 16. Fluoride toxicity causes a) yellow splotches on African Violet leaves, b) your teeth to fall out, c) brownish dead tips on spider plants, d) loss of reproductive ability, e) leaf abscission. _____ 17. What is espalier? a) a French word that should not be discussed in public; b) a method of detaining your little brother by tying him to a trellis; c) it is a type of training that often involves the use of a trellis; d) a system used by the Japanese to plant and grow bonsai trees upside down; e) a modification of the ball and burlap method of tree removal; f) a method of keeping rodents away from the base of trees. _____ 18. What is the principle disadvantage of narrow crotch angled trees? a) too many water sprouts, b) low apical dominance, c) dwarfism, d) discontinuous xylem, e) girdled branches. _____ 19. How many nuclei are found in a pollen grain? a) 1, b) 2, c) 3, d) 4, e) 5, f) 6, g) 7, h) 8, i) 9, j) 10, k) 11, l) 12. _____ 20. When buying bulbs and corms you can be sure of good flowering by buying this size (diameter in mm) a) 10 to 15, b) 20 to 25, c) 25 to 30, d) 30 to 35, e) 35 to 40. _____ 21. How can you quickly tell if a plant part is a root or a stem? a) presence of secondary meristems, b) raphids, c) nodes and internodes, d) the presence of injured regions on the plant, e) where the plant part grows (above or below ground), f) the presence or absence of chlorophyll. _____ 22. Concrete chickens a) are collected from Mayan temples, b) eat concrete worms, c) lay concrete eggs, d) do not belong in the public area of a landscape, e) can be dangerous in lightning storms, f) are placed in the public area as a public service. _____ 23. A chrysanthemum would remain Vr under these conditions a) short days, b) long nights, c) long days, d) flashes of light at night, e) short nights, e) none of these. _____ 24. A good type of grass to use in a heavily shaded area is a) Johnson's grass, b) fine leaf fescue, c) tall fescue, d) Kentucky bluegrass, e) Zoysiagrass, f) creeping bentgrass. _____ 25. When removing a large branch from the first cut is a) about 18" out on the upper side of the limb, b) parallel to the trunk on the upper side, c) about 18 to 36" out on the limb, on the underside, d)