Genetic divergence in Brassica rapa L.

Naznin, S.; Kawochar, MA; Sultana, S; Zeba, Naheed; Bhuiyan, SR

doi:10.3329/bjar.v40i3.25417

Cited by 6 publications

(4 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, crossing between genotypes belonging to these clusters may result in high heterosis, which could be exploited in crop improvement. In conformity to the present investigation, similar findings were found by [34][35][36] and [39].…”

Section: Genetic Divergence Analysis Based Onsupporting

confidence: 94%

Variability, Correlation, Path Coefficient and Genetic Diversity Analysis in Indian Mustard

Akkenapally

Chetariya

2022

IJECC

View full text Add to dashboard Cite

Phenotypic and genotypic coefficient of variation (PCV & GCV), heritability, genetic advance (GA), correlation, path and diversity analysis for fourteen characters in twenty-five genotypes of Indian mustard (Brassica juncea L.) were evaluated for seed yield and thirteen other yield contributing traits. Genetic variability indicated that, the PCV was greater than GCV for all the traits studied was majorly due to the influence of environment. High heritability along with high genetic advance as percent of mean were recorded for plant height, number of primary branches per plant, number of secondary branches per plant, length of main raceme, number of siliqua on main raceme, number of siliqua per plant, 1000 seed weight, biological yield per plant, seed yield per plant and harvest index, Indicating the breeding improvement through direct selection. In correlation analysis, seed yield per plant had significant and positive correlation with number of primary branches per plant, number of secondary branches, number of siliqua on main raceme, number of siliqua per plant, length of siliqua, number of seeds per siliqua, 1000 seed weight, biological yield per plant and harvest index at both genotypic and phenotypic levels. Path coefficient analysis indicated that, the highest positive direct effects was noted for days to 50% flowering, plant height, number of siliqua per plant, number of seeds per siliqua, length of main raceme, number of primary branches per plant, 1000 seed weight, biological yield per plant, harvest index. Therefore, these traits should be given more priority for selection in breeding programme. Genetic divergence assessed using D2 statistics for characters enabled grouping of all the genotypes in six clusters. Diversity among the clusters varied from 9.67 to 24.03 inter-cluster distances, cluster II and V showed maximum inter cluster distance followed by that between cluster V and VI. The genotypes falling in these clusters could be utilized for hybridization programme in Indian mustard.

show abstract

Section: Genetic Divergence Analysis Based Onsupporting

confidence: 94%

Variability, Correlation, Path Coefficient and Genetic Diversity Analysis in Indian Mustard

Akkenapally

Chetariya

2022

IJECC

View full text Add to dashboard Cite

show abstract

“…VIII, & IX had none. Similar result was found bySodani et al, (1990);Naznin et al, (2015),Doddabhimappa et al, (2010) andChandra et al, …”

supporting

confidence: 89%

Genetic divergence analysis in Taramira (Eruca sativa Mill.) under different environment conditions with special reference to principal component analysis

Ola

Jakhar

Punia

et al. 2022

ECJ

View full text Add to dashboard Cite

The field experiment was conducted to identify the principal component among ten morphological one (biochemical) oil content traits of thirty germplasm lines from the All India coordinate research project oilseeds (Taramira) in a randomize block design (RBD) with three replications in each of the test conditions, which were generated using 3 separate sowing dates with fifteen days interval from October 2nd week to November 3rd week (15th October, 30th October & 15th November 2018-19). First three principal components contributed 76.8% proportion of variation with an eigen value more than one (1.329). The largest percent contribution (30.11) to overall genetic divergence was shown by siliqua per plant followed by test weight, number of primary & secondary branches per plant & seed yield per plant. The genotypes were divided into nine groups, with Cluster II having the most genotypes (12), followed by Cluster I with five genotypes. Based on mean value of seed yield, oil content & cluster analysis, eight germplasms with cross combination viz., RTM-1806 X (RTM-314, RTM-1351, RTM-1805, RTM-1810, RTM-1800, RTM-1791, RTM-1815) & RTM-1804 X (RTM-314, RTM-1351) were identified as high yielding which can be widely utilized as a parents in hybridization programme for the development of 9 new diverse varieties/ hybrids for enhanced seed yield as well as oil content.

show abstract

“…However, much of this diversity is concentrated in the Indo-Gangetic plains and the submountain Himalayas. Genetic diversity plays a significant role in plant improvement because a hybrid between the lines of diverse origin usually display a greater heterosis than those between closely related ones (Naznin et al, 2015) which permit the selection of genetically divergent plants to obtain the desirable recombination of segregating generation.…”

Section: Introductionmentioning

confidence: 99%

Genetic Divergence in Leafy Mustard (Brassica juncea var. rugosa) Germplasm Grown under Tarai Condition of Uttarakhand

Bhandari

Singh

2021

IJARe

View full text Add to dashboard Cite

Background: Mustard represents a rich diversity and widely cultivated in 23 states and union territories of India. However, much of this diversity is concentrated in the Indo-Gangetic plains and the sub-mountain Himalayas. Genetic diversity plays a significant role in plant improvement because a hybrid between the lines of diverse origin usually display a greater heterosis than those between closely related ones which permit the selection of genetically divergent plants to obtain the desirable recombination of segregating generation. Therefore, the present study was undertaken to assess “Genetic Divergence in Leafy Mustard (Brassica juncea. var. rugosa) germplasm grown under Tarai condition of Uttarakhand” and to identify divergent parents for hybridization program, which would provide superior transgressive segregants from collected germplasm. Methods: The present investigation consisted of thirty-two genotypes of leafy mustard and the research was carried out at Vegetable Research Centre (VRC), G.B. Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar (Uttarakhand) in rabi season of 2015-2016. Mustard genotypes were sown in randomized block design with three replications in field and data were observed for seventeen quantitative and qualitative characters. The estimation of genetic divergence was done with the help of Mahalonobis D2 statistic as suggested by Rao (1952). Cluster analysis by Tocher method for all the traits was done. Result: Thirty two germplasm of leafy mustard for different characters and grouped them into six clusters using Mahalanobis D2 statistic. The analysis revealed the maximum inter cluster distance was (20534.12) between cluster V and cluster VI so, we can create variation by inter mating genotypes from these two clusters to each other and the maximum intra cluster distance in cluster III (441.91) with six germplasm. It means we can intermate genotypes of this cluster with each other (2014/MGVAR-2, FS-13-1, FS-13-4, 2014/MGVAR-4, PRHC-12-9-1, PRHC-12-7-2, FS-13-3 and Pusa Sag 1) to create variation in next generations. The clustering pattern could be utilized in selection of parents for crossing and deciding the best cross combinations which may generate the highest possible variability for various traits.

show abstract

Genetic divergence in Brassica rapa L.

Cited by 6 publications

References 3 publications

Variability, Correlation, Path Coefficient and Genetic Diversity Analysis in Indian Mustard

Variability, Correlation, Path Coefficient and Genetic Diversity Analysis in Indian Mustard

Genetic divergence analysis in Taramira (Eruca sativa Mill.) under different environment conditions with special reference to principal component analysis

Genetic Divergence in Leafy Mustard (Brassica juncea var. rugosa) Germplasm Grown under Tarai Condition of Uttarakhand

Contact Info

Product

Resources

About

Genetic divergence in Brassica rapa L.

Cited by 6 publications

References 3 publications

Variability, Correlation, Path Coefficient and Genetic Diversity Analysis in Indian Mustard

Variability, Correlation, Path Coefficient and Genetic Diversity Analysis in Indian Mustard

Genetic divergence analysis in Taramira (Eruca sativa Mill.) under different environment conditions with special reference to principal component analysis

​​Genetic Divergence in Leafy Mustard (Brassica juncea var. rugosa) Germplasm Grown under Tarai Condition of Uttarakhand

Contact Info

Product

Resources

About

Genetic Divergence in Leafy Mustard (Brassica juncea var. rugosa) Germplasm Grown under Tarai Condition of Uttarakhand