LOUISIANA LANDSCAPE HORTICULTURE A -M ACTUAL

LOUISIANA LANDSCAPE HORTICULTURE A -M ACTUAL

QUESTIONS AND VERIFIED ANSWERS

Crop Rotation -----Answers_---Practice employed by both gardeners and farmers for maintaining the good condition of a given section of soil by alternate planting of different crops. Such planting also helps to discourage insects which thrive on a given crop or diseases indigenous to a certain kind of plant.

Crown -----Answers_---The part of the plant where the stem and root join.

Cultivar -----Answers_---A term meaning cultivated variety now used in place of the word variety. The cultivar designates a special group of plants. Cultivars may differ in growth habit, season of maturity, fruit color, fruit shape, etc.

Culture -----Answers_---A specialized activity used in growing plants. (e.g. pruning, watering, cultivation)

Cutting (or slip) -----Answers_---Asexual propagation of plants; propogated by breaking breaking or cutting off a portion of a branch or root and planting it in soil or 1 / 3

water so that it can grow roots and in time become a plant exactly like the parent.

Cutting height -----Answers_---In mowing lawns, the measurement from grass clipped to soil line.

Damping Off -----Answers_---A fungus that causes seedlings to die immediately before or just after they break through the soil. Careful watering, good drainage and sterilizing seed bed soil help in preventing damping off.

Day-neutral -----Answers_---A term applied to plants which are not affected by the relative length of dark and light periods.

Deciduos -----Answers_---Plants that shed all their leaves at the end of the growing season and remain leafless during the winter or dormant period.

Deep Rooted -----Answers_---Plants with deeply growing roots as contrasted with roots growing on or close to the soil surface.

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Determinate Tomato -----Answers_---Terminal bud sets fruit, stops stem growth. The plant is self topping.Seldom needs staking.

Dethatching -----Answers_---Removal of the thatch layer of turf by machine, garden rake, or dethatching rake to increase air flow and penetration of fertilizers and water.

Dew -----Answers_---Condensed moisture from the atmosphere adhering in the form of small drops to any cool surface.

Dew Point -----Answers_---A temperature point below which moisture in the atmosphere is condensed into small drops.

Diameter Breast Heigh -----Answers_---Term used in measuring a tree caliper; the caliper is measured four foot six inches above the ground line.

Dibble -----Answers_---A handled, pointed tool for making holes in the soil for planting seeds, bulbs, transplanting, etc.

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