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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
For more details click here

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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

Int.J.Curr.Microbiol.App.Sci.2018.7(6): 2220-2226
DOI: https://doi.org/10.20546/ijcmas.2018.706.263


Genetic Diversity for Seed Yield, Its Components and Oil Content in Indian mustard (Brassica juncea L. Czern and Coss.) under Normal and Saline/Alkaline Condition
Neeta Tripathi1*, K. Kumar1, Rita Tiwari2, Archana Devi1,P. Verma1, D. K. Dwivedi3 and P. K. Singh1
1Department of Genetics and Plant Breeding, N.D. University of Agriculture and Technology Kumarganj, Faizabad (U.P.) – 224229, India
2Department of Botany, M.L.K. (P.G.) College Balrampur (U.P.) – 271201,
India
3Department of Plant Molecular Biology and Genetic Engineering, N. D. University of Agriculture and Technology, Kumarganj, Faizabad – 224229, Uttar Pradesh, India
*Corresponding author
Abstract:

The twenty genotypes along with four checks in Indian mustard (Brassica juncea L. Czern & Coss.) were studied for genetic diversity with respect to seed yield and thirteen related traits under normal condition (NS) and saline/alkaline condition (SS). D2 analysis classified the twenty genotypes of Indian mustard into five diverse clusters in both the conditions. In normal condition, plant height, secondary branches per plant, siliquae on main raceme, seeds per siliqua, 1000 seed weight, biological yield per plant and seed yield per plant were the major contributors for genetic diversity among the genotypes, whereas, in saline/alkaline condition, days to 50 % flowering, days to maturity, plant height, seeds per siliqua and harvest index were the major contributors for genetic diversity among the genotypes. The maximum inter cluster distance was observed between cluster IV and V in NS and in SS, between cluster II and IV. Character viz., harvest index followed by siliquae on main raceme and length of main raceme in NS whereas in SS, plant height followed by siliquae on main raceme contributed maximum towards divergence. In (NS), maximum inter cluster D2 values were observed between cluster IV and V (2156.013); while in (SS), maximum inter cluster distance was observed between cluster II and IV (1750.460) indicating wider genetic diversity between the genotypes in these clusters. Hybridization among the genotypes separated by high cluster distance will result in most heterotic crosses.


Keywords: Brassica juncea L. Czern and Coss., genetic divergence, D2 statistics
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How to cite this article:

Neeta Tripathi, K. Kumar, Rita Tiwari, Archana Devi, O. P. Verma, D. K. Dwivedi and Singh P. K. 2018. Genetic Diversity for Seed Yield, Its Components and Oil Content in Indian mustard (Brassica juncea L. Czern and Coss.) under Normal and Saline/Alkaline Condition.Int.J.Curr.Microbiol.App.Sci. 7(6): 2220-2226. doi: https://doi.org/10.20546/ijcmas.2018.706.263