The site of perception of light in plants during photoperiodism is:
1. Axillary bud
2. Leaf
3. Shoot apex
4. Stem
What is the site of perception of photoperiod necessary for induction of flowering in plants?
1. Leaves
2. Lateral buds
3. Pulvinus
4. Shoot apex
Effect of light and dark rhythm on plants is known as:
1. Photonasty
2. Phototropism
3. Photoperiodism
4. Photomorphogenesis