Correct option is D
Black heart in potato is a physiological disorder caused by lack of oxygen, usually due to poor ventilation or storage conditions, leading to tissue death in the tuber’s center.
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Question
The cause of “black heart” disease of potato is:
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- 1)Given below are two statements: Assertion (A) and Reason (R). Assertion (A): Fungi is the largest microbial biomass in the soil and are very effective decomposers of plant material. Reason (R): Bacteria are the most abundant soil inhabitants and are active in decomposition of organic matter.
- 2)Given below are two statements: Statement I: Phytoalexins are high molecular weight compounds. Statement II: Phytoalexins are all phenolic in nature.
- 3)Peach leaf curl is caused by a
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Optimum temperature maintained for paddy straw mushroom cultivation is
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Aflatoxin is an example of
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