plant hormones Flashcards
phototropism
growing toward the light
gravitropism
growing in the direction of gravity
plant hormone that enables growth towards or away a stimulus
auxins
how do plants respond to light
light hits side of shoot and auxins build up on the other side which increase the length of plant towards light
how auxins are involved in gravitropism
roots grow more on the side of least auxin making it bend and grow downwards
shoot grows more on the side with auxin making it bend and grow upwards
ethene
gas
ripen plants
causes fruit to taste sweet as converts starch into sugar
gibberellins
promotes growth
stem elongation
end seed dormancy which opens a flower of shoot
weed killers contain
auxins as makes weed grow fast
seedless fruit can be made using
auxins
applied to un pollinated flowers
fruits without seeds are called
parthenocarpic