Clustering of Greengram (Vigna radiata (L.)Wilczek) Genotypes Based on Qualitative Characters (original) (raw)

Understanding Genetic Variability Parameters of Greengram (Vigna radiata L. Wilczek) Germplasm for Agro-Morphological Traits

International Journal of Plant & Soil Science

The greengram, also known as mungbean or Vigna radiata L. Wilczek, is a significant pulse crop in India. Throughout India, it is mostly cultivated in subsistence agricultural systems. Even though it may be cultivated in three seasons across India, the average production is unbelievably low. The local germplasm has a significant genetic variation since the crop has developed in a wide variety of environmental settings. To comprehend the genetic variability and identification of distinct germplasm lines, a study was conducted on 300 green gram accessions utilising 14 quantitative traits. For pods per plant, pod clusters per plant, branches per plant, biological yield per plant, 100 seed weight, nodes per plant, harvest index, and seeds per pod, relatively high PCV and GCV were found. Additionally, an evaluation of the genetic advance (GA) and broad-sense heritability (h2) was done to select the most significant quantitative variables. Due to their high broad sense heritability (h2) an...

Principal component analysis and character association for yield components in greengram [Vigna radiata (L.) Wilczek] genotypes

The present investigation was carried out to determine the relationship and genetic diversity among thirty greengram germplasm accessions using principal component analysis for various quantitative traits. Principal component analysis (PCA) depicted that four components (PC1 to PC4) accounted for about more than 90% of the total variation for different traits. Out of total principal components retained PC1, PC2, PC3 and PC4 with values of 44.15%, 24.23%, 13.82% and 9.285 respectively. Biological yield (29%), seed index (28%) and plant height (17%) showed maximum percent contribution towards total genetic divergence. PCA based clustering showed that genotypes fall in to six different groups/clusters and their inter and intracluster distance showed genetic diversity between different genotypes. The Genotype G-04 which represents the mono genotypic cluster signifies that it could be the most diverse from other genotypes and it would be the suitable candidate for hybridization with genotypes present in other clusters to tailor the agriculturally important traits and ultimately to enhance the seed yield in green gram. Thus the results of principal component analysis revealed, wide genetic variability exists in this greengram germplasm accessions.

Character Association and Genetic Diversity in Rainfed Greengram [ Vigna radiata ( L.) Wilczek]

Indian Journal of Dryland Agricultural Research and Development, 2014

Sixteen greengram genotypes were evaluated for their yield performance as well as interrelationship among morphological traits and genetic diversity. The variation in shoot weight, root weight, nodules/plant and nodule weight was quite high among varieties ranging from 2.62-9.20 g, 0.18-0.49 g, 16.5-28.5 and 60.23-154.35g, respectively per plant. The mean number of days taken to flowering was 38.78 ranging from 32.66 in OUM 11-5 to 71.0 in Phulbani Black mung. The most promising varieties with respect to yield were found to be Pusa 9531 and Dhauli (more than 7.0 q/ha). The number of pods/plant, pod length and seeds/pod exhibited significant positive correlation with greengram yield. However, the association of seed yield with days to 50% flowering, maturity duration, plant height and dry biomass was found to be significantly negative. Based on the dendrogram depicting the morphological similarity, the varieties were classified under three distinct main clusters. The local type, Phulbani Black mung was found to be most divergent from other greengram varieties and could be better exploited in crop improvement.

Character Association and genetic Diversity in Rainfed Greengram Vigna radiata

2014

Sixteen greengram genotypes were evaluated for their yield performance as well as inter-relationship among morphological traits and genetic diversity. The variation in shoot weight, root weight, nodules/plant and nodule weight was quite high among varieties ranging from 2.62-9.20 g, 0.18-0.49 g, 16.5-28.5 and 60.23-154.35g, respectively per plant. The mean number of days taken to flowering was 38.78 ranging from 32.66 in OUM 11-5 to 71.0 in Phulbani Black mung. The most promising varieties with respect to yield were found to be Pusa 9531 and Dhauli (more than 7.0 q/ha). The number of pods/plant, pod length and seeds/pod exhibited significant positive correlation with greengram yield. However, the association of seed yield with days to 50% flowering, maturity duration, plant height and dry biomass was found to be significantly negative. Based on the dendrogram depicting the morphological similarity, the varieties were classified under three distinct main clusters. The local type, Phulbani Black mung was found to be most divergent from other greengram varieties and could be better exploited in crop improvement.

Genetic Variability and Divergence of Morphological and Seed Quality Traits of Greengram (Vigna radiata L.) Genotypes

International Journal of Plant & Soil Science

Forty greengram genotypes were evaluated for their morphological traits and to find the extent of genetic variability. Analysis of variance revealed that the genotypes were highly significant for all the characters studied, indicating the existence of considerable magnitude of variability. High (>20%) phenotypic co-efficient of variation and high genotypic co-efficient of variation for seed yield (kg/4.05 m2) in the present investigation was noticed and indicating the minimal influence of environment and presence of high genetic variability for the trait in the experimental material. Hence, selection based on phenotype in these genotypes can also be effective for improvement of seed yield. High heritability to plant height (cm), days to 50% flowering, days to maturity, pod length, 100 seed weight, protein estimation and medium heritability to seed yield (kg/4.05 m2). High GAM to plant height and seed yield demonstrates the presence of additive gene effect indicating effectiveness...

Genetic analysis on the extent of variability among the greengram (Vigna radiata (L.) Wilczek) genotypes

Electronic Journal of Plant Breeding, 2020

The present investigation was carried out at National Pulses Research Centre, Vamban during Rabi 2017–18 season to assess the extent of genetic variability among the newly developed 49 greengram genotypes based on the yield and yield contributing traits. Observations were recorded on days to 50% flowering, days to maturity, plant height (cm), the number of branches per plant, the number of clusters per plant, the number of pods per cluster, the number of pods per plant, pod length (cm), the number of seeds per pod, 100 seed weight (g) and seed yield (kg/ha). The analysis of variance revealed the presence of significant variation for all the characters studied except for the number of seeds per pod. In general, the PCV values were higher than the GCV values indicating the influence of environment in controlling these traits. Among the estimates of genetic parameters, heritability along with genetic advance are normally more helpful in predicting the gain under selection. In the prese...

Assessment of Genetic Parameters for Yield and Its Associated Traits in Greengram [Vigna radiata (L.) Wilczek

International Journal of Environment and Climate Change, 2022

Greengram is India's most significant legume crop, and because there is relatively little genetic variety, increasing productivity demands increased attention in research for the development of superior cultivars. During Kharif 2020-21, an experiment was conducted to the evaluation of the genetic parameters for yield and their associated attributes for thirty-nine Mungbean genotypes. Using a Randomised Block Design (RBD), all genotypes were sown in three replications. The observations on various quantitative characters were recorded, and the genetic parameters, PCV, GCV, heritability(bs), and genetic advance, along with the analysis of variances, were estimated. According to ANOVA, almost all genotypes exhibited significant variances for all characters. The highest GCV and PCV was found to be pod length (cm), number of pods cluster-1, number of primary branches plant-1, biological yield plant-1 as well as seed yield plant-1. The heritability was recorded high for pod length (cm) followed by number of primary branches plant-1, number of pods cluster-1, days to pod initiation, number of seeds pod-1, days to 50% flowering, seed yield plant-1, biological yield plant-1, number of effective pods plant-1. The character’s days to flower initiation, total number of pods plant-1, harvest index and number of clusters plant-1 revealed medium genetic advance. High heritability(bs) coupled high genetic advance as percent of mean was observed for pod length (cm), number of branches plant-1, number of pods cluster-1, days to pod initiation, number of seeds pod-1, days to 50% flowering, seed yield plant-1, biological yield plant-1 and number of effective pods plant-1.

Genetic Analysis in Pre-breeding Lines of Greengram [Vigna radiata (L.) Wilczek

Legume Research- An International Journal, Volume 46 Issue 12: 1564-1570 (December 2023), 2023

Background: Greengram is third most important pulse crop which is widely adapted and can improve soil fertility. The genetic variability and association studies help in selection which would increase the yield potential of greengram. Methods: Two hundred stabilized lines (F 9) obtained from the cross VBN (Gg) 2 and Vigna radiata var. sublobata were evaluated. The yield and yield contributing traits were recorded to evaluate genetic variability, heritability, genetic advance as % of mean and correlation among the yield and its component traits. Result: Analysis of variance exhibited significant differences among the lines for all the ten quantitative traits indicating the presence of genetic variability. The high GCV values were found for the traits viz., single plant yield (30.18) and the number of pods per plant (26.80). High heritability combined with high genetic advance as per cent of mean was observed for the number of pods per plant (90.19, 52.43), single plant yield (89.58, 58.84), the number of pods per cluster (79.28, 22.70) and the number of clusters per plant (69.50, 30.22) which indicates additive gene effects. In the present study, the number of pods per plant had a high positive direct effect (0.919) on a single plant yield. Therefore, the selection for these characters would improve yield in greengram.

Study on genetic variability, heritability and correlation analysis for grain yield and yield attributing traits in green gram [Vigna radiata (L.) Wilczek

international Journal of Chemical Studies, 2019

Green gram is one of the short duration pulse crop grown mainly in arid regions. The crop is having substantial variability for yield and related traits which is to be utilized further in crop improvement. The present study was taken in green gram crop with 12 advanced cultures to understand the variability present in the crop and also heritability and GAM of yield related traits. Analysis of variance revealed significant variations for all the traits studied. Among all entries, LGG 460 recorded highest seed yield (8.69 q/ha) followed by LGG 607 (8.06 q/ha). The heritability and GAM for YMV, days to 50% flowering, No. of pods per plant and pod length were high suggesting the role of additive gene action in the present population and can be utilized through simple selection.