Khushboo Chandra*, Anil Pandey and S.B. Mishra
Department of Plant Breeding and Genetics
Dr.Rajendra Prasad Central Agricultural University, Pusa (Samatipur) Bihar – 848125
Email: drkhushboochandra@gmail.com
Received-07.10.2019, Revised-26.10.2019
Abstract: The present study entitled “assessment of the extent of variability in morpho-physiological attributes of Indian mustard (Brassica juncea L. Czern & Coss) under different moisture regimes” was undertaken in Randomized Complete Block Design (Rabi 2016-17) in three replications with 20 genotypes, under four environments viz, no irrigation under Rainout Shelter (E1), rainfed (E2 ), one irrigation : 45 DAS (E3 ) and two irrigations: 45 and 65 DAS (E4 ) and evaluated thirty – three morpho-physio-biochemical traits, respectively along with laboratory experiment for drought related thirteen physiological traits. High amount of variability in individual (E1, E2, E3, E4) and pooled over environments reflected worth of studied genotypes for most of the characters. Overall, most promising (E1, E2, E3, E4 and Pooled over environments) Rajendra Suphlam (for 24 traits), Rohini (for 14 traits), NRCDR-2 (for 12 traits), KMR-10-2, Maya and PKRS28 for 11 and RH-8814 for 10 traits. High heritability coupled with high genetic advance under selection suggesting major role of additive genetic component noticed in all four environments (E1, E2, E3 and E4) for Height of first primary branch, Primary branches per plant, Secondary branches per plant, Specific leaf weight and Catalase activity.
Keywords: Brassica juncea L., Variability, Heritability, Genetic Advance, Residual moisture
References
Barekati, F., Rad, A. H. S., Mohamadi, G. N. and Delkhosh, B. (2014). Investigation of humidity regimes effect on morphophysiological traits of new rapeseed cultivars.International Journal of Agriculture and Crop Sciences.7(15).pp1547-1552
Devi, B. (2018). Correlation and path analysis in Indian mustard (Brassica junceaL.) in agro – climatic conditions of Jhansi (U.P.).Journal of Pharmacognosy and Phytochemistry.7(1): 1678-1681
Lal, M.L., Chauhan, J.S., Singh, K.H. and Rathore, S.S. (2015). Genetic Variability and Correlation Analysis in Indian Mustard [Brassica juncea (L.) Czern&Coss.]under Drought Stress. Indian Journal of Plant Genetic Resource.28(3): 329-334.
Lodhi, B., Thakral, N.K., Ram, A. and Singh, A. (2014). Genetic variability, association and path analysis in Indian mustard (Brassica juncea). Journal of Oilseed Brassica. 5(1):26-31.
Meena, C. P., Chauhan, J. S., Singh, M., Singh, K. H., Meena, M. L. and Rathore, S. S. (2014). Analysis of genetic parameters and correlations for physiological and quality characters in Indian mustard [Brassica juncea (L.)Czern.&Coss.].Indian Journal of Genetics and Plant Breeding.74(4): 514- 517.
Muhammad, A., Usman, S.,Tahira, Muhammad, Y. and Nasim, I. (2007). Utilization of genetic variability, correlation and path analysis for seed yield improvement in mustard (Brassica juncea).Journal of Agricultural Research Lahore. 45(1): 25-31.
Roy, R.K., Kumar, A., Kumar, S., Kumar, A. and Kumar, R.K. (2018). Correlation and Path Analysis in Indian Mustard(Brassica junceaL. Czern and Coss) under Late Sown Condition.Environment and Ecology.36 (1A) : 247-254 .
Singh, V. V., Singh, S., Verma, V., Meena, S. S. and Kumar, A. (2009). Genetic variability for seedling traits in Indian mustard under moisture stress conditions. Indian Journal of Plant Genetics Resources.22 (1): 46- 49.
Sodani, R., Seema, Singhal, R. K., Gupta, S., Gupta, N., Chauhan, K. S. and Chauhan, J. (2017). Performance of Yield and Yield Attributes of Ten Indian Mustard (Brassica junceaL.)Genotypes under Drought Stress.Int. J. Pure App. Biosci.5 (3): 467-476.
Synrem, G., Rangare, N., Myrthong, I. and Bahadure, D. (2014). Variability studies in Intra specific crosses of Indian mustard [Brassica juncea (L.)Czern and Coss.]genotypes. IOSRJAVS. 7(9):29-32.