GENETIC VARIABILITY AND STABILITY ANALYSIS FOR YIELD AND ITS CONTRIBUTING TRAITS IN CHICKPEA (Cicer arietinum L.)
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Date
2019-08-23
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Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra.
Abstract
The present investigation entitled “Genetic variability and stability analysis for yield and its contributing traits in chickpea (Cicer arietinum L.)’’ was undertaken with view to estimate extent of genetic variability among the chickpea genotypes and estimate stability for yield and its components. Twenty genotypes were sown on three different environments (Akola, Buldana, Nagpur) in a Randomized Block Design, with three replications for measuring stability of genotypes for different characters. The data was subjected to statistical analysis as per Eberhart and Russell (1966) model. The ANOVA reveled highly significant difference among the all genotypes for all the characters studied indicating the presence of substantial amount of genetic variability. The character number of pods per plant showed medium GCV (14.88%) accompanying with medium broad sense heritability (47.70%) and higher expected genetic advance (21.17%) values indicating thereby amount of variation in aforesaid character. The higher magnitude of PCV as compared to GCV in respect of characters, number of pods per plant, seed yield per plant, indicated the greater effect of environment on these characters. The high heritability estimate was showed in protein content (89%) followed by medium heritability (40-60%) for the characters 100 seed weight (49.90%), number of pods per plant (47.70%) and number of seeds per pod (47%). This indicated that these characters are may be governed by non-additive component of variation which is non fixable, heterosis breeding can be fruitfully exploited in improving these characters. The character seed yield per plant and number of secondary branches per plant showed medium GCV (12.24 and 10.73) accompanying with medium heritability (37.30 and 37.40) and medium expected genetic advance (15.41 and 13.53). The character days to maturity showed low GCV (1.63%) accompanying with low heritability (20%) and low expected genetic advance (1.51%).
In general, genotypic variances were found significant for, days to 50% flowering, plant height, number of primary branches per plant, number of secondary branches per plant, number of pods per plant, number of seeds per pod, 100 seed weight, seed yield per plant and protein content, except days to maturity when tested against G X E interaction. Environmental variance was significant for all the studied characters except days to 50% flowering, protein content. Genotype x environmental interactions was non-significant for all the traits. Linear components of G X E interaction was found significant for the characters viz., days to 50% flowering and 100 seed weight (g) whereas pooled deviation (non-linear component) was found significant for the traits viz., days to maturity, number of secondary branches per plant, number of pods per plant, number of seeds per pod, seed yield per plant. Environment (linear) effects were also significant for all the studied characters except protein content.
The most of genotypes showing wider adaptability for different characters studied viz., AKG-1303, AKG-1401, Phule G-0405 and BDNG-797 recorded average stability for days to 50 % flowering. The genotypes AKG-1303, AKG-1401, BDNG 2015-9, Phule G-0819-43, Phule G-15109, Phule Vikram and JAKI-9218 recorded average stability for plant height. The genotypes viz., AKG-1401, AKG-1506, BCP-60, Phule G-0819-43, Phule G-0405, AKRG 1701 and AKRG 1702 recorded average stability for maturity. The genotypes viz., BCP-60, Phule G-15109, AKRG 1701, BDNG-797, Vijay, Phule Vikram, PDKV Kanchan and JAKI-9218 recorded average stability for primary branches per plant. The genotypes viz., AKG-1504, Phule G-15109, BDNG-797, Vijay, PDKV Kanchan and JAKI-9218 recorded average stability for secondary branches per plant.
The genotype viz., AKG-1401, Phule G-13107, AKRG-1702, BDNG-797 and JAKI-9218 recorded average stability for number of pods per plant. The genotypes, Phule G-0405, AKRG 1701, Digvijay and Phule Vikram recorded average stability for seeds per pod. The genotypes AKG-1401, AKG-1506, BDNG 2015-9, BCP-60, Phule G-13107, Phule G-15109, AKRG 1702, and JAKI-9218 recorded average stability for 100 Seed weight. The genotypes AKG-1401, AKG-1506, BCP-60, Phule G-15109, AKRG 1701, AKRG 1702, PDKV Kanchan and JAKI-9218 recorded average stability for seed yield per plant. The genotypes AKG-1506, BDNG 2015-6, Phule G-15109, Phule G-0405, AKRG 1702, BDNG-797, Vijay, Digvijay and PDKV Kanchan recorded their average stability for protein content (%).
The above average stability was observed for the genotypes Phule G-0405 for plant height, genotype BDNG 2015-6 for 100 seed weight, genotype AKG-1303 for the character protein content (%). The below average stability was observed for the genotype Phule G-13107 for number of primary branches per plant, genotype BDNG 2015-9 for seed yield per plant.
Description
The investigation on was carried out during rabi 2017-18 under Pulses Research Unit, Dr. PDKV Akola, Agriculture Research Station, Buldana. College of Agriculture Nagpur. These twenty genotypes were evaluated in a Randomized Block Design with three replications for each location. Data were recorded on five randomly selected plants from each row. The experimental study revealed sufficient amount of genetic variability among the genotypes of chickpea under study.
Keywords
Crop Improvement, Genetics, Breeding, Self-pollination, Genetic variability, heritability, Genotypic coefficient variances, Phenotypic coefficient variances, Genetic advance, Genotype environment interaction, Environment, Stability, Regression co-efficient, Deviation from regression, Crops, Field crops, Cicer arietinum, Chickpea, Varieties, Rhizobium, Statistics And Experimentation, Research, Field Experiment, Experimental Design, Randomized Block Design, Statistical method, Data collection, Data analysis,
Citation
BANKAR, SACHIN GOVINDRAO. (2019). Genetic variability and stability analysis for yield and its contributing traits in chickpea (Cicer arietinum L.). Department of Agricultural Botany. Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. M. Sc. 2019. Print. xiv, 107p. (Unpublished).