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Greater Yam (Dioscorea alata): Sree Swathy

 Salient features

• Climber type plant, twining to right.
• Medium conical, irregular shaped tubers.
• Yellow cortex with white flesh.
• It takes eight months to maturity.
• Its tubers have 27.98% dry matter, 20.02% total starch, 6.9 mg starch (per 100 g) and 16.94% crude protein.

Performance
• Its tuber yield varies from 30 to 40 tonne/ha depending upon agro-climate conditions and management practices.
• It can withstand limited drought.
• It is tolerant to anthracnose disease but susceptible to scale insect.




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