Louisiana Landscape Horticulture A-M Exam
Questions and Answers
Acid Soil - -Soil with a pH of less than 7.0. Agricultural lime is used to raise
the pH and correct a very acid soil condition.
- Acre - -A land containing 43,560 square feet and measuring approximately
210' x 210' square
- Actual - -The part of the formula of any product, containing several
ingredients, which refers to a specific ingredient. For example, a 5-pound box
of a general purpose plant food (10-10-10) would have 10% nitrogen, 10%
phosphate and 10% potassium. 10% of 5lbs is 1/2lb . Therefore, the actual
content of the three major ingredients in the mixture is 1/2 lb each.
- Adventitious Root or Shoot - -Produced on stem tissue after removal from
the mother plant. These tissues developed on cuttings are identical to those
found during seedling development.
- Alkaline Soil - -Soil with a pH of more than 7.0. The pH of Alkaline soils are
reduced by the application of iron sulfate, aluminum or large amounts of
sawdust, peat moss, or ground pine bark.
- Annual Plant - -A plant living one year or less, usually planted in spring
after the last frost and dying at time of killing frost. During this time, the
plant grows, blooms, produces seeds and dies.
- Anther - -The upper part of a stamen that produces pollen.
- Apical Dominance - -The suppression of growth of lateral buds by the
terminal bud of a stem.
- Arboretum - -An area devoted to the display of a variety of living trees and
shrubs for study and comparison.
- Asexual - -Without sex; refers to reproduction not involving the fusion of
gametes.
- Auxin - -A plant hormone that influences and regulates plant growth.
- Balled and Burlapped - -Plant prepared for transplanting by digging them
so that the soil adjacent to the roots remains undisturbed; the ball of earth is
then wrapped in burlap or similar mesh fabric.
, - Bare Root - -In the winter or early spring, many varieties of deciduous
plants are sold with their roots bare. Dormant plants dug from the soil have
their roots cleaned and trimmed, and are prevented from drying out until the
time they should be planted.
- Bedding Plants - -Refers to small plants sold in flats or packs. They many
be planted in beds, borders or wherever desired.
- Biennial - -A plant that produces a rosette of leaves the first year of its life,
and sets flowers, fruit and seeds the second year and then dies. Ex: beet
carrot, sweet william.
- Binomal - -A system of naming plants using two names. First name is the
genus and the second the species. Botanical or scientific name.
- Biodegradable - -Any material than can be readily decomposed in the soil
by the action of each microorganisms as bacteria and fungi.
- Bolting - -The production of a seed stalk by vegetative plants such as
ornamental cabbage, spinach, lettuce or radish. Bolting by vegetable crops is
undesirable. Bolting usually occurs when days are long and temperatures are
warm.
- Broadcasting - -Scattering a material such as fertilizer or seed evenly over
a soil surface.
- Bud - -An embryonic stem tip bearing young leaves, one or more flowers
or both leaves and flowers.
- Bulb - -A bud, usually subterranean, consisting of a short, thick stem
emitting roots from below and bearing overlapping, scalelike leaves.
- Caliper - -In landscape and nursery usage, the diameter of a tree
measured six inches above the groundline if up to a four-inch caliper; larger
caliper trees are measured twelve inches above the groundline. In forestry,
the caliper is measured for and a half feet above groundline.
- Cambium Layer - -The layer of actively dividing mass between the outer
bark and the inner wood of woody plants.
- Capillary Action - -The attraction of soil particles to water molecules,
causing an up or downward movement of the water into the soil. Becoming
popular in container watering.
- Carbohydrate - -Any group of chemical compounds (including sugars,
starches and cellulose) containing carbon, hydrogen and oxygen only.
Questions and Answers
Acid Soil - -Soil with a pH of less than 7.0. Agricultural lime is used to raise
the pH and correct a very acid soil condition.
- Acre - -A land containing 43,560 square feet and measuring approximately
210' x 210' square
- Actual - -The part of the formula of any product, containing several
ingredients, which refers to a specific ingredient. For example, a 5-pound box
of a general purpose plant food (10-10-10) would have 10% nitrogen, 10%
phosphate and 10% potassium. 10% of 5lbs is 1/2lb . Therefore, the actual
content of the three major ingredients in the mixture is 1/2 lb each.
- Adventitious Root or Shoot - -Produced on stem tissue after removal from
the mother plant. These tissues developed on cuttings are identical to those
found during seedling development.
- Alkaline Soil - -Soil with a pH of more than 7.0. The pH of Alkaline soils are
reduced by the application of iron sulfate, aluminum or large amounts of
sawdust, peat moss, or ground pine bark.
- Annual Plant - -A plant living one year or less, usually planted in spring
after the last frost and dying at time of killing frost. During this time, the
plant grows, blooms, produces seeds and dies.
- Anther - -The upper part of a stamen that produces pollen.
- Apical Dominance - -The suppression of growth of lateral buds by the
terminal bud of a stem.
- Arboretum - -An area devoted to the display of a variety of living trees and
shrubs for study and comparison.
- Asexual - -Without sex; refers to reproduction not involving the fusion of
gametes.
- Auxin - -A plant hormone that influences and regulates plant growth.
- Balled and Burlapped - -Plant prepared for transplanting by digging them
so that the soil adjacent to the roots remains undisturbed; the ball of earth is
then wrapped in burlap or similar mesh fabric.
, - Bare Root - -In the winter or early spring, many varieties of deciduous
plants are sold with their roots bare. Dormant plants dug from the soil have
their roots cleaned and trimmed, and are prevented from drying out until the
time they should be planted.
- Bedding Plants - -Refers to small plants sold in flats or packs. They many
be planted in beds, borders or wherever desired.
- Biennial - -A plant that produces a rosette of leaves the first year of its life,
and sets flowers, fruit and seeds the second year and then dies. Ex: beet
carrot, sweet william.
- Binomal - -A system of naming plants using two names. First name is the
genus and the second the species. Botanical or scientific name.
- Biodegradable - -Any material than can be readily decomposed in the soil
by the action of each microorganisms as bacteria and fungi.
- Bolting - -The production of a seed stalk by vegetative plants such as
ornamental cabbage, spinach, lettuce or radish. Bolting by vegetable crops is
undesirable. Bolting usually occurs when days are long and temperatures are
warm.
- Broadcasting - -Scattering a material such as fertilizer or seed evenly over
a soil surface.
- Bud - -An embryonic stem tip bearing young leaves, one or more flowers
or both leaves and flowers.
- Bulb - -A bud, usually subterranean, consisting of a short, thick stem
emitting roots from below and bearing overlapping, scalelike leaves.
- Caliper - -In landscape and nursery usage, the diameter of a tree
measured six inches above the groundline if up to a four-inch caliper; larger
caliper trees are measured twelve inches above the groundline. In forestry,
the caliper is measured for and a half feet above groundline.
- Cambium Layer - -The layer of actively dividing mass between the outer
bark and the inner wood of woody plants.
- Capillary Action - -The attraction of soil particles to water molecules,
causing an up or downward movement of the water into the soil. Becoming
popular in container watering.
- Carbohydrate - -Any group of chemical compounds (including sugars,
starches and cellulose) containing carbon, hydrogen and oxygen only.
