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Plant growth substances (PGS) have innum...

Plant growth substances (PGS) have innumerable practical application name the PGS you should use to
(a)increase yields of sugarcane
(b)promote lateral shooot growth
(c )cause sprouting of potato tuber
(d)inhibit seed germination

Text Solution

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(a) Gibberellic acid increases the yield of sugarcane
Cytokinin spray on plants promote lateral shoot growth
(c ) The effect of ethylene on potoato causes its sprouting
(d) ABA- Abscissic acid inhibit the seed germaintion
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Plant growth substancees (PGS) have innumerable practical applications. Name the PGS you should use to (a) Increase yield of sugarcame (b) Promote lateral shoot growth (c) Cause sprouting of potato tuber (d) inhibit seed germination

The chemical substance P is made and secreted by the meristematic tissue at the tip of stem (or shoot) of a plant. The chemical substance P is responsible for a phenomenon Q in plants in which the stem bends towards a source of light. The same chemical substance P has on opposite effect on the root of a plant. It causes the root of a plant to bend away from the source of light in a process called R. (a) What is the chemical substance P? (b) State whether P prefers to remains in the sunlit side of a stem or in shade. (c) What is the effect of substance P on the rate of growth of (i) a root, and (ii) a stem? (d) What is the name of process (i) Q, and (ii) R? (e) What is the general name of chemical substances like P? Name another substance which belongs to this class of chemical substances.