WorksheetsGreen House Production Review
Total questions: 16
Worksheet time: 9mins
What are some environmental requirements that a green house must provide (select all that apply)
light
air
nutrients
temperature
water
Increases light intensity and the Daily light integral
photoperiodic lighting
solar lighting
supplemental lighting
short day lighing
Create a long-day or short-day effect
photoperiodic lighting
solar lighting
supplemental lighting
short day lighing
A plants response to the number of uninterrupted hours of darkness is called
critical day length
photoperidism
critical night length
night interruption
The length of dark period needed to initiate flowering in a plant is referred to as what?
critical day length
photoperidism
critical night interval
night interruption
Which of the following is an example of night interruption
leaving lights on all the time so the plant is never without some sort of lighting
turning low intensity lights on to extend the plants perceived day length
using the natural light cycles to grow plants
using bright lights on a dark day to provide plants with adequate sunlight for photosynthesis
A _____________ is a type of fertilizer that lacks one or more of the three primary macro nutrients.
complete
incomplete
micro nutrient fertilzer
macro nutrient fertilizer
complete
incomplete
micro nutrient fertilzer
macro nutrient fertilizer
A plant mainly used for ornamental purposes in beds and often is used for a particular season or two of the year
biennial plant
perennial plant
succulant
bedding plant
The maximum amount of water that can be held by a substrate against the pull of gravity
water capacity
container capacity
soil moisture
substrate capacity
The number of hours of light needed to initiate flowering in a plant
CDL (critical day interval)
CNI (critical night interval)
supplemental lighting
LED lighting
The condition of a plant when it is about to wilt
wilting
hypoxia
necrosis
flagging
Of the following, what are some tools that greenhouse growers use to control temperature? (select all that apply)
evaporative cooling
propane heaters
thermostats
vents
fans
Hormones that speed or slow plant growth are called_________.
fertilizers
plant growth regulators
biostimulants
biofungicides
What can a grower do if the water quality is not sufficient for plant growth?
purify the water through reverse osmosis
blend non problem water the current water soruce
harvest rainwater
all of these
Wilting is ALWAYS as sign of under watering
true
false
