Assessment of groundnut cultivars for end-of-season drought tolerance in a Sahelian environment
OAR@ICRISAT
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Relation |
http://oar.icrisat.org/6227/
http://dx.doi.org/10.1017/S0021859600074529 |
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Title |
Assessment of groundnut cultivars for end-of-season drought tolerance in a Sahelian environment
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Creator |
Ndunguru, B J
Ntare, B R Williams, J H Greenberg, D C |
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Subject |
Groundnut
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Description |
A 2–year study (1990 and 1991) was conducted at the ICRISAT (International Crops Research Institute for the Semi-Arid Tropics) Sahelian Centre, near Niamey, Niger, to select groundnut cultivars tolerant to drought and to examine selection techniques. Thirty-six cultivars known to vary in yield potential were grown under rainfed and irrigated conditions. Crop growth rate (C) and partitioning co-efficient (p) were estimated from phenological and final harvest data. The correlation between years was greater for partitioning than for pod yield (implying a higher heritability for p than for yield). Tolerance as determined by a drought susceptibility index for pod yield (SY), crop growth rate (Sc) and partitioning (Sp) to reproductive sinks showed thirteen cultivars as drought tolerant for either C or p or for both. The Sahelian cultivars 796, 55–437 and TS 32–1 were the most consistent for drought tolerance. Partitioning was the most important yield component affecting yield variation among cultivars.
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Publisher |
Cambridge University Press
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Date |
1995
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Type |
Article
PeerReviewed |
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Format |
application/pdf
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Language |
en
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Rights |
—
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Identifier |
http://oar.icrisat.org/6227/1/ndunguru1995.pdf
Ndunguru, B J and Ntare, B R and Williams, J H and Greenberg, D C (1995) Assessment of groundnut cultivars for end-of-season drought tolerance in a Sahelian environment. Journal of Agricultural Science, 125 (1). pp. 79-85. ISSN 1469-5146 |
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