Prospects for utilization of genotypic variability for yield improvement in groundnut

Rao, R. C. Nageswara, Singh, A. K., Reddy, L. J. and Nigam, S. N. (1994) Prospects for utilization of genotypic variability for yield improvement in groundnut. Journal of Oilseeds Research, 11 2: 259-268.

Author Rao, R. C. Nageswara
Singh, A. K.
Reddy, L. J.
Nigam, S. N.
Title Prospects for utilization of genotypic variability for yield improvement in groundnut
Journal name Journal of Oilseeds Research   Check publisher's open access policy
ISSN 0970-2776
Publication date 1994
Sub-type Critical review of research, literature review, critical commentary
Open Access Status
Volume 11
Issue 2
Start page 259
End page 268
Total pages 10
Place of publication New Delhi, India
Publisher H P C Publishers
Language eng
Abstract Research on groundnut (Arachis hypogaea) physiology at ICRISAT Asia Centre indicated substantial variation among genotypes for desirable traits such as water use efficiency (WUE), partitioning of dry matter to pods and efficient root systems. However, measurement of these traits was complex and laborious. Significant correlations amongst WUE, carbon isotope discrimination in leaf and specific leaf area (SLA) suggested that carbon isotope discrimination in SLA could be used to identify genotypes with high WUE. The adaptation of improved genotypes to varied environments is one of the major problems in groundnut improvement programmes. Significant genotype × environment interactions were noted, but there was little emphasis on understanding and exploiting variability for specific adaptation. There is scope for yield improvement in groundnut by selecting for physiological attributes contributing to yield advantage in a given environment and combining them to enable further identification of genotypes with desirable combinations of traits. Scope also exists to enhance productivity of groundnut by developing varieties with specific traits to match agroclimatic requirements.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Critical review of research, literature review, critical commentary
Collection: Queensland Alliance for Agriculture and Food Innovation
 
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Created: Wed, 25 Jun 2014, 18:12:30 EST by Dr Rao Rachaputi on behalf of Centre for Plant Science