light Flashcards
light quality
wavelength of light
what light are best for plants to absorb
red and blue
does light quality change based on time of day and year
yes
does photosynthetic efficiency change when light quality changes
yes
Photosynthetically active radiation
usable light for photo
light intensity
quantity of light that strikes a leaf per unit of time
light duratino
amt of time that a plant receives light
can plants distinguish between cloudy day less light and approaching winter less light
yes
what growth does blue light support
green growth, bushy plants
what growth does red light support
flowering
as light intensity increases, produciton of sugars (increases / decreases)
increases, UP to a point
saturation point
max amt of light that a leaf can take in
advantages to shade plants
grows slower, but can grow in shade
does light intensity increase or decrease the further away from source of light
decreases further away
(cone shape)
light compensation point
point at which the energy is used in respiration is equal to the energy produced by photo
net energy is positive
allows for growth