National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Fifty genotypes of Indian mustard [Brassica juncea (L.) Czern.& Coss.] were evaluated for fourteen quantitative traits. The experiment was conducted at research of farm, ICAR-Directorate of Rapeseed-Mustard Research, Sewar, Bharatpur, (Rajasthan) during rabi 2019-20. Both genotypic and phenotypic coefficients of variation were higher for important traits including main shoot length, days to maturity, seed yield per plant, thousand seed weight. High heritability in conjunction with high genetic advance were observed for seed yield per plant, thousand seed weight, fruiting zone length, days to initial flowering, first basal branch, siliqua length, seeds per siliqua, primary branches, main shoot length, days to maturity, secondary branch, plant height, siliqua on main shoot, days to 50% flowering. The fifty germplasm were grouped in seven clusters. Cluster 1 was the largest group (12 germplasm) followed by cluster 2 (11 germplasm), cluster 5 (9 germplasm), cluster 4 (8 germplasm) and cluster 3 (7 germplasm), cluster 7 (2 germplasm) and cluster 6 is the smallest having only one germplasm (Table 3 and Fig 1). The Principal component analysis (PCA) was conducted using quantitative traits. First PC had 262.479 variance (eigen value) which is 67.08 % of total variation explained (Table 3), followed by PC-II (10.48%) and PC-III (8.35%), PC-IV (4.78%), PC-V (4.55%). Cumulatively first five components explained 95.25% of the total variation in the data.
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