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  4. The deteriorative processes in plants, that naturally terminate their functional life, are collectively called:

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Q. The deteriorative processes in plants, that naturally terminate their functional life, are collectively called:

ManipalManipal 2004

Solution:

Senescence (L. senescene-to grow old) is the state of an organism when it undergoes deterioration of structural and functional efficiency due to increase in metabolic failure, decreased homeostasis, increase in entropy and cellular breakdown. It is a consequence of ageing and will occur even optimum nutrition level is maintained. The study of plant senescence is called Phytogerontology.