Q. Energy pyramid is always upright because:

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#Question id: 38809

#Plant Biotechnology

Q. Assertion (A): Prolonged cold treatment followed by shoot-tip culture can successfully eliminate plant viruses.

Reason (R):Exposure of chrysanthemum plants to 5°C for several months increased the proportion of virus-free plants for both chrysanthemum stunt virus and chrysanthemum chlorotic mottle virus.

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#Question id: 38810

#Plant Biotechnology

Q. Assertion (A):Increasing the duration of cryotherapy improves virus elimination efficiency.

Reason (R):Extending cold treatment at 5°C from 4 months to 9.5 months increased virus-free frequencies for both CSV and CCMV.

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#Question id: 38811

#Plant Biotechnology

Q. Assertion (A):Cryotherapy is generally more damaging to plants than thermotherapy.

Reason (R):Cold treatment causes greater physiological stress compared to heat treatment.

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#Question id: 38812

#Plant Biotechnology

Q. Which of the following statements regarding chemotherapy for virus elimination in plant tissue culture is CORRECT?

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#Question id: 38813

#Plant Biotechnology

Q. Thermotherapy is noted to be effective against which specific types of pathogens? 

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#Question id: 38814

#Plant Biotechnology

Q. Why might a plant that survives thermotherapy be at a disadvantage later on?