Azharudheen, T.P.Md. and Gowda, M.V.C. (2013) An Assessment of the Prospects of Developing Confectionery Grade Genotypes with Multiple Disease Resistance in Groundnut (Arachis Hypogaea L.). International Journal of Biotechnology and Bioengineering Research. , 4 (4). pp. 347-354.
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Abstract
A recombinant inbred line (RIL) population derived from the cross TG 19 x GPBD 4 was phenotyped for quality traits (protein content, oil content and O/L ratio), disease resistance (rust and late leaf spot) and productivity traits (pod yield/plant, 100-seed weight and shelling %) in two seasons (summer and kharif 2009). The ANOVA indicated significant variation for all the productivity traits and diseases, but the variation was found to be less for quality traits. Phenotypic data analysis for genetic variability components revealed higher magnitude of variation with high heritability for diseases, moderate to high variability with high heritability for nutritional quality and higher magnitude of variation but lower heritable variation for productivity traits. Distribution of RILs was bimodal to normal for rust and normal for LLS but within the range of parents, indicating simple inheritance for rust but complex for LLS. The distribution for nutritional quality and productivity traits was mostly normal revealing complex inheritance. Transgressive segregants in both the directions indicated contribution of favourable alleles from both the parents. Correlation between rust and LLS was negative revealing antagonistic nature of the diseases. Highly significant and positive correlation was observed between protein and oil content; 100-seed weight and pod yield per plant. Several RILs superior to best parent were identified for different traits which could be utilized in future breeding programmes. The study indicated scope for combining high yield and disease resistance with desirable confectionery traits.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Groundnut; late leaf spot; oil; protein; rust. |
| Author Affiliation: | Department of Genetics and Plant Breeding, University of Agricultural Sciences, Dharwad, India. |
| Subjects: | Plant Production Statistics and Experimentation |
| Divisions: | Groundnut |
| Depositing User: | Ms Ishrath Durafsha |
| Date Deposited: | 12 Dec 2013 07:56 |
| Last Modified: | 12 Dec 2013 07:56 |
| Official URL: | http://www.ripublication.com/ijbbr_spl/ijbbrv4n4sp... |
| URI: | http://eprints.icrisat.ac.in/id/eprint/12200 |
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