Other Plant Hormones (Grade 12 NSC Matric Life Sciences): Flashcards
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Role of gibberellins in plants
Role of gibberellins in plants
Growth-promoting hormones
Gibberellins' effect on seeds
Gibberellins' effect on seeds
Trigger germination, break dormancy
Gibberellins' effect on flowers
Gibberellins' effect on flowers
Stimulate formation and development
Main role of abscisic acid
Main role of abscisic acid
Inhibits/slows down growth processes
Abscisic acid's effect on seeds
Abscisic acid's effect on seeds
Promotes dormancy until conditions suitable
Abscisic acid's role in stress
Abscisic acid's role in stress
Helps plants cope with drought and environmental stress
Selective targeting in weed control
Selective targeting in weed control
Different species respond differently to hormone levels
Leaf difference: weeds vs cereal crops
Leaf difference: weeds vs cereal crops
Weeds have broad leaves, crops have narrow leaves
Effect of high auxin on weed roots
Effect of high auxin on weed roots
Inhibits root growth, leading to weed death
Main benefit of hormone-based weed control
Main benefit of hormone-based weed control
Less toxic to animals and humans than traditional herbicides