A comparative assessment of water use efficiency in groundnut (Arachis hypogaea) grown in containers and in the field under water-limited conditions

Hebbar, K B and Sashidhar, V R and Udayakumar, M and Devendra, R and Nageswara Rao, R C (1994) A comparative assessment of water use efficiency in groundnut (Arachis hypogaea) grown in containers and in the field under water-limited conditions. Journal of Agricultural Science, 122 (3). pp. 429-434. ISSN 1469-5146

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Abstract

Water use efficiency (WUE) was measured on fourteen genotypes of groundnut (Arachis hypogaea L.) grown in containers under adequately irrigated and water-limited conditions. The genotypes used similar amounts of water but produced different quantities of dry matter. WUE accounted for > 92% of the variation in dry matter production under both irrigated and water-limited conditions. There was a significant increase in WUE under water-limited conditions. Four genotypes selected from the container experiment as having either a high or a low WUE under non-limited or limited water input conditions were further tested under prolonged water deficit conditions in a field experiment. WUE varied significantly between genotypes and there was a positive correlation between WUE and the quantity of dry matter produced by the genotypes. The results suggested that, in three out of four genotypes, the WUE measured in the container experiment was positively correlated with the WUE estimated under field conditions.

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Subjects:	Mandate crops > Groundnut
Depositing User:	Mr Sanat Kumar Behera
Date Deposited:	19 Dec 2012 03:04
Last Modified:	19 Dec 2012 03:04
URI:	http://oar.icrisat.org/id/eprint/6340
Official URL:	http://dx.doi.org/10.1017/S0021859600067368
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	UNSPECIFIED
Links:	Google Scholar

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