Test 1 Flashcards
Define landscape management
Art, science, and skill employed by professionals who maintain all or any part of the exterior environment.
Responsible for:
Plants ,animals, and inanimate Objects.
Manages: (4)
People, Time , Equipment, and money.
What year did Landscape Management Begin
1960 along with fertilizer and chemical companies.
How many acres of managed turf areas are in the U.S.
50 million
Average size of home lawns in the U.S.
0.32 acres or 1,400 sq.ft.
Good lawn and landscape management adds: (2)
Pride, Property Value
What is the Largest Franchise in the Country
True Green (1969), 200 branches, 1.4 billion
other large franchise companys
valleycrest co. , the Brickman Group, Davey Tree Expert Co,
Small sized markets have:
opportunities in Niche markets, room for growth, (quality work/ fair prices.)
How many golf courses are in the U.S.
19,000
Companies Diversify in what areas:
mowing, woody plant care, annual color, Irrigation, Lawn Establishment and/or renovation. aquascapes.
What act re-evaluated over 9000 pesticides?
Food Quality Protection Act
Risk cup test exposure over how many years?
70 years
California Air and Resource Board did what?
Banned 2-cycle models,
What is the major expense for most Landscape firms.
Labor
H2B does what?
allows foreigners to work seasonally under temporary visas.
Good indicators of the Landscape industry are:
housing market and personal income
Landscape freshwater usage:
Golf course:
- 9%
1. 5%
$ of irrigation sold annually ?
800 million
Xeriscapes
Designing to take full advantage of rainfall.
Landscape managers must be:
Good horticulturists/ Good business people
Profit =
Sustainability
how many landscape management companies are in the U.S.
50,000 to 145,000
Small companies produce less than
200,000 annually, Residential markets(bread&butter)
Top 50 Firms hold only ___% of the market
15%
Profession Orginizations
Sports Turfmanagers Association(STMA)
Golf Course Superintendent Association (GCSAA)
Professional Landcare Network(Planet)
Landcarenetwork.org, GCSAA.org, STMA.org
1 acre =
1 gal=
- 560ft^2
3. 785L
Groups of Cells with common origins, structures and functions?
Tissues
Monocot
3’s, parallel, vascular bundle scattered.
Dicot
4, 5, 2 cotyledons, netlike venation, vascualar bundle circular
true leaf is made of: (3)
Blade, Petiole and axillary Bud
axis where pinnately compound leaves attach
Rachis
Thorns:
Spines:
Prickles:
aborted shoots,
aborted leaves
modified epidermal cells.
Stem Functions(4)
support, storage, xylem &phloem, photosynthesis
Root Function(4)
Anchorage, water/nutrient uptake, storage, Nitrogen Assimilation.
group of flowers
group of flowers
Flowers are sessile
Spike
flowers with pedicels (unbranched)
raceme
compound raceme
panicle
flat top youngest flowers at end of rachis
corymb
flat top, pedicles originate from common point.
umbel
flat toped, oldest flowers at end of rachis
Cyme
many single, sessile flowers
Head
fleshy spike and modified leaf
spathe and spadix
Leaf shapes
Lancelate, oval, cordate, triangular
Leaf margins
entire, serrate, ungelate, lobed
Leaf venation
parallel, pinnate(birdfeather), palmate
Growth =
cell division +cell elongation + cell differentiation
The upper few inches or feet of the earths crust are
Soils
Soil __% solids and ___% pore space
50/50
describes how the mineral particles are arranged in soils.
Soil Structure
Ideal pH range
6-7
ability of soil to hold and exchange positively charged ions.
cation exchange capacity.
% of organic matter & how much to add per year
3-5%, most common and useful amendment.
add 3 cubic yards/1000 sf /yr
Pros/Cons with organic matter
pros: good CEC, buffer, Nutrient reservoir, holds water,
Cons: build up changes pH, Can be high in soluble salts.
Sedge is best.
Sand
2mm- 500mm needs to be 1/3 of soil volume
Lime
Gypsum
basic
neutral
Acidic Loving plants
Azelia ,Sweet potato
Reducing Soil pH
Amonium Nitrate:time consuming
Elemental Sulfur: Quick
Al Sulfate Intermediate
Amino acids, proteins, makes chlorophyll?
Nitrogen
ATP
Phosphorus
Stomatal Conductance
Potassium
Cell walls
Calcium(Secondary)
component of chlorophyll
magnesium(Secondary)
builds certain amino acids & involved in synthesis of chlorophyll.
Sulfur(Secondary)
Activates enzymes ,Most important micro nutrient
Iron
water releases electrons to the light reactions and oxygen in the atmosphere.
Chlorine.
Use these to raise pH
lime and calcium
Chemical equation of Photosynthesis
6CO2+12H20+lightenergy = C6H1206 +6H20+ 602
Requirement for photosynthesis
Light, temperature,water, soil, nutrients and CO2
Chemical equation for respiration
C6H1206+6O2= 6CO2 +6H20 +released energy
Requirements for Respiration
Carbohydrates, 02, Stress
produces food, stores energy, uses water, occurs in sunlight, uses carbon dioxide, releases oxygen,
Photosynthesis
uses food, releases energy, produces water, produces CO2, uses oxygen, occurs in dark and light.
Respiration.
What does transpiration do
transports minerals from soil through the plant, cools plant, moves sugars and plant chemicals, maintaing tugor pressure.
Nitrogen must be in what form to be taken
NH3 ammonia
how many soil samples
15-20, 4-6in. deep ,S-shape,
both, tips and shoots and roots, primary growth, increase in length, produces dermal ground and vascular tissue
Apical Meristems
monocots, particulary grasses, occurs between differentiated tissues in internode. usually at base of leaves.
intercalary meristems
woody dicots and few biennials & perennials, secondary growth increase in grith
Lateral meristem
produces conducting tissue, secondary xylem and phloem.
Vascular Cambrium
produces bark
Cork Cambrium
A group of cells which are able to divide and enlarge
Meristems
3 growth promoting horomones
Auxins(2rings), Gibberillans(5rings), and cytokinins
2 growth stopers
Ethylene, Absistic acid(1ring)
Chilling injury
20-0 degrees C or 68- 32 F , can be overcome but may slow germination.
Critical range for plants
0-15 C or 32-42 F
Freezing injury
less than 0C or 32F, intra and extra cellular freezing
Death of plants due to cold temps
Winter Kill
ice crystals kill the cell once they grow to large
intracellular ice
ice forms on the outside and protoplasm of plant become dehydrated.
Extracellular Ice
what precent of plants are introduced
90%
USDA hardiness zone map is based on
average annual minimum temperatures.
What part of plants need to be protected the most?
Flower buds and veg buds.
Martin is in what zone
7b
Factors that affect hardiness
speed, duration, acclimation,genetic variability.
period of gradual decrease in temperature over several months
Acclimation
when water freezes it gives off heat energy
Latent Heat of Freezing, protects down to 22F
horomone that effects meristematic tissue
Auxin
horomone that effects meristematic tissue in leaves,roots and seeds.
Gibberellins
horomone that effects root tips
cytokinins
horomone that effects shoots
Ethylene
horomone that effects green tissue
Abcisic Acid
Loss of internal water pressure
Drought
Which type of wilting can be overcome?
Primary wilt
Overall plant death
plasmolysis
silt:
sand :
clay-loam:
40
40
20
How do deep roots help with drought avoidance?
Capture deep water
How can transpiration be controlled and how can it be avoided?
Stomatal closure
Leaf shed.
How can a plant survive drought periods?
Dormancy