Performance of some elite mungbean [Vigna radiata (L.) Wilczek] mutant families in M7 generation (original) (raw)
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Evaluation of gamma rays induced genetic variability and divergence in M3 generation of mungbean
International Journal of Agriculture Innovations and Research, 2014
Genetic variability and divergence for ten economically important traits in 51 genotypes (50 mutant lines of mungbean variety K 851+ one control) in M generation were studied. Number of pods/plant for high GCV was recorded. While number of primary branches/plant and number of pods/plant showed high PCV. All the traits showed high heritability, whereas, plant height, number of primary branches/plant, number of clusters/plant, number of pods/plant and seed yield/plant showed high genetic advance. On the basis of D values, a total of five cluster were obtained, indicating that induced mutations are effective in creating genetic divergence. Maximum number of mutant lines were included in cluster I, cluster II and cluster III whereas only control was present in cluster IV. The maximum inter-cluster distance was recorded for cluster IV. Cluster V, Cluster I, cluster II and cluster IV were recorded for high plant height and maximum number of se seed index, pod length and number of clusters...
International Journal of Plant and Soil Science, 2023
The goal of the current study was to determine how much genetic variability there was for yield and traits that contributed to yield in two different mungbean varieties, WGG-42 and LGG-460, following the induction of mutations through chemicals (ethyl methane sulphonate and sodium azide) and physical (gamma rays) mutagens. In Rabi, 2018-19, in RBD with three replications in M4generation, fifty-five mutant lines selected from M3 progenies (36 in WGG-42 and 19 in LGG-460) were assessed alongside the two parents. Number of primary branches per plant, number of Original Research Article
Genetic studies in mungbean (Vigna radiata (L). Wilczek)
2010
A study was carried out in mungbean Vigna radiata (L.) Wilczek) with eight ‘lines’ and four ‘testers’ crossed in a Line x Tester design to estimate mean, range, genotypic and phenotypic coefficients of variation, heritability and genetic advance for 13 trait viz., days to 50% flowering, days to maturity, plant height, number of branches per plant, number of clusters per plant, number of pods per cluster, number of pods per plant, pod length, number of seeds per pod, 100 seed weight, harvest index, protein content and single plant yield. High heritability coupled with high genetic advance as per cent of mean were observed for plant height, number of branches per plant, number of clusters per plant, number of pods per cluster, number of pods per plant, 100 seed weight, harvest index and single plant yield confirming the additive gene action.
LEGUME RESEARCH - AN INTERNATIONAL JOURNAL
Background: The present investigation was effectuated to study mungbean germplasms with an objective to estimate the genetic variability parameterssuch as coefficient of variation, heritability andgenetic advance for yield and its contributing traits. Method: The experimental material comprises of forty mungbean genotypes evaluated during Kharif-2017. An experimental study was conducted with emphasis on the selection of superior along with highly variable genotypes thatwere analyzed in Randomized Block Design (RBD) with three replications. Result: The results of the analysis of variance (ANOVA) revealed thatthe genotypic variations were significant for all of the traits and magnitude of variation was found high for clusters per plant followed by harvest index and seed yield per plant. High heritability coupled with high genetic advance was recorded for clusters per plant (96.00%, 65.48%), seed yield per plant (96.00%, 45.78%), pods per plant (93.00%, 44.81%), harvest index (86.00%, ...
Genetic variability in existing germplasm is mandatory before commencement of a successful breeding program. To estimate genetic variability and correlations among mungbean genotypes, an experiment was conducted at The University of Agriculture, Peshawar during 2014. Fourteen mungbean genotypes were sown in RCB design with three replications. Data were recorded on days to maturity (days), plant height (cm), pod length (cm), pods plant-1 (no.), grains pod-1 (g), 1000 grain weight (g), biological yield (tons ha-1) and grain yield (tons ha-1). Analysis of variance showed highly significant differences (P≤0.01) among mungbean genotypes for all the studied traits. Mean value for the said traits ranged between 67-76.3, 48.7-105.7, 7.2-9.7, 15.2-22.5, 9.3-12.0, 42.6-55.6, 8.888-13.111 and 2.022-3.401 for days to maturity, plant height, pod length, pod plant-1 , grains pod-1, 1000 grain weight, biological yield and grain yield, respectively. Genotype Mung NM11 performed better for yield and yield associated parameters under agro-climatic conditions of Peshawar. Significant negative phenotypic correlation for grain yield was observed with pods plant-1 (r =-0.51) whereas, significant positive correlation was observed with 1000 grain weight (r = 0.60). Based on the results of current study, genotype " Mung NM11 " could be disseminated directly among growers for the commercial production of mungbean or may be included in a cultivar development program to produce transgressive segregants.
Genetic Architecture of Secondary Yield Components in Mungbean (Vigna radiata (L.) Wilczek)
Breeding Science, 2002
Triple Test Cross (TTC) analyses were carried out to detect epistasis, and to estimate additive and dominance components of genetic variation in two seasons (kharif and spring/summer) for branches per plant, pod clusters per plant, pods per cluster, pod length, biomass, and harvest index in mungbean. The results revealed the absence of epistasis for all the traits in the kharif season but in contrast the presence of epistasis for pod clusters per plant and biomass in the spring/summer season. The partitioning of total epistasis revealed that both i type (additive × additive), and j and l type (additive × dominance, and dominance × dominance) interactions were significant with predominance effect of i type for pod clusters per plant and biomass. The additive and dominance gene effects were highly significant for branches per plant, pod length, and harvest index in both seasons; for pod clusters per plant and biomass in the kharif season; and for pods per cluster in spring/ summer season. The magnitude of additive variance was higher for all these traits in both seasons except for pods per cluster and pod length in the spring/summer season, which exhibited a higher value of dominance than additive variance. The direction of dominance was observed towards fewer pod clusters per plant, small pod size, and high harvest index. The predominance of i type interaction and additive gene action for most of the traits in the present investigation suggests the occurrence of selection in the late generations in the segregating population for the improvement of seed yield through yield components in mungbean.
International Journal of Plant Breeding and Genetics, 2015
Sixty four powdery mildew disease tolerant genotypes of mungbean were grown under All India Coordinated Research Project on Mullarp, during kharif, 2004 and rabi, 2004-05 in randomized complete block design with three replication to compare their performance, existing variability among various yield related traits. Analysis of variance showed significant variation for days to 50% flowering, days to maturity, plant height, number of primary branches plantG 1 , number of clusters plantG 1 , number of pods clusterG 1 , pod length, number of seeds podG 1 , number of pods plantG 1 , 100 seed weight, hard seed percent, protein content, phenol content and seed yield plantG 1. High heritability coupled with high genetic advance as percentage of mean was observed for seed yield plantG 1 , number of primary branches, number of clusters plantG 1 and plant height. Direct selection for the traits possessing additive genetic variance, which is fixable in nature, may lead to development of desirable mungbean plant.
2014
The present study was carried out to estimate inter relationship and genetic diversity in M 3 generation of Vigna radiata in response to gamma radiation. The experimental m aterials comprised the four irradiated lines of mungbean AUM-18, AUM-19, AUM-31 and M-2004 that wer e i radiated at 250 Gy, 350 Gy and 450 Gy doses of gamma rays. The experiment was laid out in split pl o design, with two replications. Each replication was divided into main plot and subplot. Dose levels were assign ed to main plots and varieties in subplots. High he ritability estimates were observed for all traits. Phenotypic correlation of seed yield per plant with germinatio n percentage and seeds per pod was positive and highly significant h owever positive and significant phenotypic correlat ion of clusters per plant and 100-seed weight while pods per plant was negative and significant. Higher heritability a nd significance correlation indicated that germination percentage, 100-seed weight and seeds per pod ...
International Journal for Agro Veterinary and Medical Sciences, 2013
The experiment was conducted in the research area of the Department of Plant Breeding and Genetics, University of Agriculture Faisalabad, during spring season 2010. The experimental material was comprised of four irradiated mungbean genotypes as AUM-18, AUM-19, AUM-3 and Mung 2004. From the experiment it was concluded that maximum emergence rate was observed by AUM-31 at the level D 2 followed by the genotype AUM-18 which gave the maximum yield at dose level D 1. AUM-19 produced maximum plant height at first pod maturity followed by AUM-18, while regarding dose level maximum plant height was produced at the level D 1 . Maximum plant height at 90% pod maturity was obtained by genotype AUM-19 at D 1 , AUM-19 at level D 2 and AUM-18 at dose level D 3 . AUM-31 produced maximum clusters per plant at D 1 and D 2 and D 3 levels and Mung-2004 gave the minimum cluster per plant at D 2 and D 3 . AUM-19 produced maximum pods per plant at all three levels while it remained minimum regarding the genotype AUM-31 at all three levels. AUM-31 produced maximum seeds per pod at D 1, D 2 and D 3 levels. AUM-18 showed no effects for seed per pod on all dose levels. Maximum seed yield per plant was produced by AUM-18 at dose level D 1 while it was observed minimum for AUM-19 at D 3 . The phenotypic correlation for emergence rate with plant height at first pod maturity, plant height at 90% pod maturity, pods per plant, Grains per pod was negative and non significant while it was positive with cluster per plant and 100-seed weight. It was suggested that the selection of higher yielding mungbean genotypes may be helpful on the basis of induced mutations and Germplasm may be used for mutation breeding programme.
Nature of gene action for yield and its components in mungbean (Vigna radiata)
Indian Journal of Agricultural Sciences
The assessment of gene effect for some yield characters and detection of epistasis in mungbean [Vigna radiata (L.) Wilczek] was studied in four crosses involving five parents through generation mean analysis during kharif 2012 at Banaras Hindu University (BHU), Varanasi, UP. Six populations, viz. P1, P2, F1, F2, B1 and B2 of four crosses involving five parents were evaluated. The nature and magnitude of gene effects for yield and its components in mungbean was studied using six parameter model of generation mean analysis. The presence of epistasis was detected by joint scaling test and inadequacy of additive-dominance model was established except seeds/pod. Additive (d), dominance (h) gene effects along with one or more type of non-allelic interactions (i, j, l) contributed significantly towards the inheritance of all the quantitative characters in majority of the crosses. Duplicate type of epistasis and predominant dominance effects was also prevalent in most of the cases except in...