The deteriorative proceses in plants, that naturally terminates their functional life, are collectively called as ...............
A
Wilting
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B
Abscission
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C
Plasmolysis
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D
Senescence
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Solution
The correct option is D Senescence Senescence refers to a number of controlled processes which finally culminate in death of the plant part. Senescence is a controlled process and is generally responsible for conservation of precious part nutrients like nitrogen and phosphorous. The senescing plant part is separated from plant due to formation of an abscission layer which finally separated the plant part.