Q11 of 48 Page 84

Monocarpic plants are those which

These plants are generally annual or biennial and very rarely perennial. Annual plants flower in one year, biennials take two years to flower and perennials takes many years to flower. Example: Rice (usually annual), Sugarbeet, cabbages, carrots (biennial), Talipot palm (perennial).

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To increase sugar production in sugarcanes, they are sprayed with

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ABA acts antagonistic to

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The photoperiod in plants is perceived at

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Fill in the places with appropriate word/ words.

a. A phase of growth which is maximum and fastest is __________.


b. Apical dominance as expressed in dicotyledonous plants is due to the presence of more ________ in the apical bud than in the lateral ones.


c. In addition to auxin, a ________ must be supplied to culture medium to obtain a good callus in plant tissue culture.


d. ________ of a vegetative plants are the sites of photoperiodic perception.