Cross protection is done in citrus against which disease?
A. Tristeza
B. Xyloporosis
C. Exocortis
D. Psorosis
Answer: Option A
Solution (By Examveda Team)
Cross protection is done in citrus against Tristeza disease.Cross protection is a type of induced resistance developing in plants against viruses.
Tristeza is one of the very few virus-induced diseases where mild strain cross-protection has been used successfully in commercial production of various tree crops and is currently the only way a citrus industry faced with severe and destructive stem pitting CTV (Citrus Tristeza Virus) can survive.
This Question Belongs to Agriculture >> Horticulture
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