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A Short History of Rice Research in West Bengal

dph.ritimo.org · 855 words · saved by 1 readers

The early rice research efforts, in the beginning of the 1930’s, aimed at improving the yielding capacity and quality of indigenous rice varieties. Throughout the country, indigenous rice germplasm was collected, evaluated, and improved through pure line selection or, to a lesser extent, through hybridization and mutation. The West Bengal department of agriculture released some sixty improved varieties between 1948 and 1960. In the late 1950’s began a second phase of research based on the Indica-Japonica Rice Hybridization Project launched by the FAO in several countries. Indica and Japonica are the two most common rice types in the species Oryza sativa, the third one being Javanica. The proposed aim of the programme was to increase the ratio of grain over straw of the Indica type (of Indian origin)through a cross with the Japonica type (of Japanese origin). Yet, because of a significant difference in day length variation (Japonica featuring a 150 days maturation period compared to 50

A Short History of Rice Research in West Bengal español français english português dph participe à la core dem www.coredem.info dialogues, propositions, histoires pour une citoyenneté mondiale A Short History of Rice Research in West Bengal (Une brève histoire de la recherche sur le riz au Bengale occidental) Carine PIONETTI 09 / 1997 The early rice research efforts, in the beginning of the 1930's, aimed at improving the yielding capacity and quality of indigenous rice varieties. Throughout the country, indigenous rice germplasm was collected, evaluated, and i

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