Plant Growth & Plant Hormones Flashcards
1
Q
Factors that affect plant growth
A
Light intensity Light wavelengths Day length Temperature Gravity Plant Hormones
2
Q
Auxins
A
Promote +ve phototropism
Promote apical dominance
3
Q
Cytokinins
A
Promote cell reproduction & adventitious root production
4
Q
Gibberellins
A
Promote seed germination & fruit/stem growth
5
Q
Abscisic acid
A
Inhibits growth and stimulates stomatal closure - in older leaves
6
Q
Ethylene Gas
A
Encourages ageing/ripening of fruits
7
Q
Jasmonates
A
Defence against herbivore attack