Estimates of Genetic Variability in Selected Advanced Breeding Lines of Groundnut for Morphological, Yield and Its Contributing Traits under Imposed End-of-Season Drought Stress
Current Journal of Applied Science and Technology,
Page 108-118
DOI:
10.9734/cjast/2020/v39i1430708
Abstract
Aim: To study genetic variability for morphological, yield and its contributing traits in forty groundnut genotypes.
Study Design: Randomized complete block design with two replications.
Place and Duration of Study: College of Horticulture, Hiriyur, University of Agricultural and Horticultural Sciences, Navile, Shivamogga, Karnataka, India during Rabi 2016-17.
Methodology: Forty genotypes of groundnut were evaluated under irrigated and imposed end-season drought conditions. Crop was taken care as per recommended package of practices. Stress was imposed by withholding irrigation at pod development stage (@90DAS) for 20 days in drought block. However, control block was provided with regular irrigations. Observations on different morphological, yield and its related traits were recorded on randomly sampled five plants per genotype per replication in both stress-full and stress-free environments. The mean data was subjected to statistical analysis using Genstat 14.1 software.
Results: The analysis of variance revealed that highly significant differences observed for all the traits even at p <0.01 level indicating the sufficient variability exist among the entries for the traits under study. High genotypic and phenotypic co-efficient of variation, high heritability coupled with high genetic advance over mean was observed for number pods per plant, immature pods per plant, pod yield per plant and hectare, harvest index, kernel yield per plant, fresh weight of seedlings and kernels per plant under moisture deficit condition.
Conclusion: It’s a clear evidence for lesser influence of environment and predominance additive gene action in germplasm for these traits which offers opportunity for selection, unvaryingly direct selection for these traits could be effective for developing high yielding drought tolerant genotypes.
Keywords:
- Groundnut
- allotetraploid
- drought
- heritability
How to Cite
References
Kadam VK, Chavan BH, Rajput HJ, and Wakale MB, Genetic diversity in summer groundnut (Arachis hypogaea L.). Inter. Res. J. Multidisciplinary Std. 2016;2(1):1-11.
Narasimhulu R, Kenchanagoudar PV, and Gowda MVC. Study of genetic variability and correlations in selected groundnut genotypes. Inter. J. Appl. Biol. Pharma. Technol. 2012;3(1):355-358.
Subramanian SS, and Menon M. Heterosis and inbreeding depression in rice. Madras Agric. J. 1973;60:1139.
Sanjeeva kumar P, Shivanna S, Irappa BM, Shweta. Genetic variability and character association studies for yield and yield attributing components in groundnut (Arachis hypogaea L). Inter. J. Recent Scientific Res. 2015;6(6):4568-4570.
Janila P, Nigam SN, Pandey MK, Nagesh P, Varshney RK. Groundnut improvement: Use of genetic and genomic tools. Pl. Sci. 2013;4:1-16.
Girdthai T, Jogloy S, Vorasoot N, Akkasaeng C, Wongkaew S, Holbrook CC, Patanothai A. Heritability of and genotypic correlations between, aflatoxin traits and physiological traits for drought tolerance under end of season drought in peanut (Arachis hypogaea L.). Field Crops Res. 2010;118:169-176.
Robinson HF, Comstock RE, Harvey VH, Estimates of heritability and degree of dominance in corn. Agron. J. 1949;41:353-359.
Williams EJ, Drexler JS. A non-destructive method for determining peanut pod maturity. Peanut Science. 1981;8:134-141.
Bell MJ, Harch B, Wright GC. Plant population studies on peanut (Arachis hypogaea L.) in subtropical Australia. Australian J. Exp. Agric. 1991;31:535-543.
Lush JL. Intra-sire correlation and regression of offspring on dams as method of estimating heritability of characters. Proc. American Soc. Animal Protect. 1940;33:293-301.
Burton GN, and Devane EM, Estimating heritability in tall fescue (Festuca arundianacea L.) from replicated clonal material. Agron. J. 1953;45:478- 481.
Hanson CH, Robinson HR, Comstock RS. Biometrical studies of yield in segregating population of korean lespedeza. Agron. J. 1956;48:268-272.
Johnson HW, Robinson HF, Comstock RE. Estimates of genetic and environmental variability in soybean. Agron. J. 1955; 47:413-418.
Satish Y, Genetic variability and character association studies in groundnut (Arachis hypogaea L.). Inter. J. Pl. Animal Environ. Sci. 2014;4(4):298-300.
Satyanarayan P, Prashant KR, Arvind K. Evaluation of groundnut (Arachis hypogaea L.) genotypes for quantitative character and yield contributing traits. Inter. J. Emerging Technol. Adv. Engineer. 2014;4(7):500-104.
Thirumala R, Venkanna V, Bhadru D, Bharathi D. Studies on variability, character association and path analysis on groundnut (Arachis hypogaea L.). Inter. J. Pure Appl. Biosci. 2014;2(2): 194-197.
Patil AS, Punewar AA, Nandanwar HR, Shah KP. Estimation of variability parameters for yield and its component traits in groundnut (Arachis hypogaea L.). The Bioscan. 2014;9(2):749-754.
Padmaja D, Eswari KB, Brahmeswara RM, Madhusudhan RVS. Genetic variability parameters for yield components and late leaf spot tolerance in BC1F2 population of groundnut (Arachis hypogaea L.). Inter. J. Innovative Res. Develop. 2013;2(8):349-354.
Nandini C, Savithramma D L, and Naresh BN. Genetic variability analysis for water use efficiency in F8 recombinant inbred lines of groundnut (Arachis hypogaea L.). Curr. Biotica. 2011;5(3):282-288.
Yogendra P, Verma AK, Haidar ZA, Jayal-mahto P, Manto J. Variability studies in Spanish bunch groundnut. J. Res. Birsa Agric. Univ. 2002;14(2):91-93.
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