Inheritance of SPAD chlorophyll meter reading and specific leaf area in four crosses of groundnut (Arachis hypogaea L.)

Janila, P and Singh, M S and Abhishek, R and Nigam, S N (2015) Inheritance of SPAD chlorophyll meter reading and specific leaf area in four crosses of groundnut (Arachis hypogaea L.). Indian Journal of Genetics and Plant Breeding, 75 (03). pp. 408-412. ISSN 0019-5200

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Abstract

SPAD chlorophyll meter reading (SCMR) and specific leaf area (SLA) are important traits associated with water-useefficiency (WUE). Understanding their genetic nature and association with yield parameters enables their deployment in breeding programs for drought tolerance. The results obtained from the study conducted on six generations of four groundnut crosses showed significant additive effects for SCMR and SLA in all the crosses indicating possible gains through selection. Relative contribution of additive effects was high for both, SCMR (58 to 93%) and SLA (63 to 91%). The low heritability of SCMR and SLA indicates environmental influence on these traits. SCMR is positively associated with pod, kernel and haulm yield, while the association of SLA with them was negative. Combining trait-based approach using SCMR and SLA with empirical approach can be rewarding in groundnut breeding for drought tolerance.

Item Type: Article
Divisions: RP-Grain Legumes
CRP: CGIAR Research Program on Grain Legumes
Uncontrolled Keywords: WUE, SCMR, SLA, Drought, Additive effects, Inheritance
Subjects: Mandate crops > Groundnut
Depositing User: Mr Ramesh K
Date Deposited: 08 Sep 2015 04:15
Last Modified: 21 Oct 2016 08:46
URI: http://oar.icrisat.org/id/eprint/8989
Official URL: http://dx.doi.org/10.5958/0975-6906.2015.00067.X
Projects: UNSPECIFIED
Funders: UNSPECIFIED
Acknowledgement: UNSPECIFIED
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