Short Answer Type
Long Answer TypeYes growth is measureable.
Parameters for growth :
Growth is measured by a variety of parameters some of which are increase in fresh weight, dry weight, length, area, volume cell and growth in number of cells. For example
Growth by increase in the number of the cells : Maize root apical meristem can give rise to more than 17, 500 new cells per hour.
Growth in size : Cells of watermelon may increase in size by upto 3,50,000 times.
Growth in length : Growth of pollen tube is measured in terms of its length.
Growth in surface area : An increase in surface area denotes the growth in a dorsiventral leaf.
Short Answer TypeLong Answer TypeShort Answer TypeLong Answer Type
One Word AnswersWhich one of the plant growth regulators would you use if you are asked to :
(a) Induce rooting in a twig
(b) quickly ripen a fruit
(c) delay leaf senescence
(d) induce growth in axilliary buds
(e) ‘bolt’ a rosestte plant.
(f) induce immediate stomatal closure in leaves.
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