Studied by 0 peoplegive four variables that must be controlled when investigatin the effect of light direction on the growth of newly germinated seedlings
type of seeds
volume of water seedlings receive
light intensity
temperature seedlings are kept at
what is the natural role of gibberellins in seeds?
stimulate seed germination
why is ethene sometimes added to fruit while it’s being transported to shops?
to speed up the ripening process
give three commercial uses of auxins
weedkillers
rooting powders
promoting growth in tissue culture
give three commercial uses of gibberellins
end seed dormancy + force seeds to germinate earlier than normal
encourage plants to flower
make fruit grow larger
give one commercial use of ethene
triggers/speeds up ripening of fruit before they are sold (in the UK)
Note
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