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Q.

Which of the following are better–yielding semi-dwarf varieties of rice developed in India?

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An Intiative by Sri Chaitanya

a

Sonalika and Kalyan Sona

b

IR – 8 and TN – I

c

Taipei and Glolden rice

d

Ratna and Jaya

answer is D.

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Detailed Solution

Semi-dwarf rice varieties were derived from IR-8, (developed at International Rice Research Institute (IRRI), Philippines) and Taichung Native-1 (from Taiwan). The derivatives were introduced in 1966. Later better-yielding semidwarf varieties Jaya and Ratna were developed in India.

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