MCQ
Growth rings determine
- ✓Age
- BLength
- CBreadth
- DNumber of branches of a plant
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$II.$ $\alpha$-amylase production is barley grain
$III.$ Acceleration of fruit ripening in tomato
$IV.$ Delayed in sprouting in potato tubers
From the given effects find out the effects of ethylene and choose the correct option accordingly
$R$- They are the most important vegetative organ for photosynthesis