Effect of drought on oil, fatty acids and protein contents of groundnut (Arachis hypogaea L.) seeds

Dwivedi, S.L. and Nigam, S.N. and Rao, R.C.N. and Singh, U. and Rao, K.V.S. (1996) Effect of drought on oil, fatty acids and protein contents of groundnut (Arachis hypogaea L.) seeds. Field Crops Research, 48 (2-3). pp. 125-133.

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Abstract

The effects of drought on oil, protein and fatty acid contents were studied in 12 groundnut genotypes that differed in seed quality traits. The genotypes were subjected to mid-season and the end-of-season drought in field experiments at ICRISAT Asia Center, Patancheru, India, conducted during the 1991/92 and 1992/93 post-rainy (November-April) seasons. Mid-season drought was imposed between 40 and 80 days after sowing (DAS). The crop received normal irrigation, 50 mm at 10 day intervals, before and after the imposition of mid-season drought until harvest. Using the line-source sprinkler technique, end-of-season drought of varying intensity was imposed from 80 DAS until harvest. Mid-season drought had no significant effect on the content of oil, protein and fatty acids other than eicosenoic fatty acid. End-of-season drought significantly reduced total oil, and linoleic and behenic fatty acid content, and significantly increased total protein and stearic and oleic fatty acid content. However, genotype by treatment interactions were found. In ICGVs 88369, 88371, 88381, 88382 and 88403, total oil content remained unaffected while oleic fatty acid content increased under end-of-season drought. These were identified as desirable parents for a breeding program to develop cultivars suitable for rainfed cultivation.

Item Type: Article
Author Affiliation: International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), ICRISAT Asia Center, Patancheru 502324, Andhra Pradesh, India
Subjects: Plant Protection > Pesticides
Plant Protection > Pests
Crop Improvement
Divisions: Groundnut
Depositing User: Mr B Krishnamurthy
Date Deposited: 13 Dec 2010 21:36
Last Modified: 29 Dec 2010 19:49
Official URL: http://dx.doi.org/10.1016/S0378-4290(96)01027-1
URI: http://eprints.icrisat.ac.in/id/eprint/992

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