National Academy of Agricultural Sciences (NAAS)
|
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 |
An experiment was conducted in Randomized Complete Block Design (RCBD) for characterization based on branching behavior, genetic variability and heritability studies on Indian mustard (Brassica juncea L. Czern & Coss), accommodating 50 genotypes, from various Rapeseed and Mustard centres located across country, randomly in three replications during Rabi 2015-16 at the research farm of Tirhut College of Agriculture, Dholi, Muzaffarpur under rainfed condition. Branching behaviour and grain yield categorized 50 genotypes in 9 categories viz; BB-HY (1), BB-MY (11), BB-LY (1), M-Nbb-HY (1), M-Nbb-MY (25), M-Nbb-LY (1), H-Nbb-MY (6), H-Nbb-LY (6) and none of the genotype in H-Nbb-HY category. Five high yielding genotype reflecting different branching patterns were Rajendra Suphlam (BB), Pusa Mahak (Nbb), NDRE7 (BB), NRCDR-2 and RH0819 (both Nbb). Based on morphological characterization under rainfed condition Rajendra Suphlam reflected superiority for 14 out of 25 metric traits for flowering, maturity, plant height, root, shoot, siliqua and TSW followed by Pusa Mahak for 6 traits involving flowering, primary and secondary branches, NS, HI and DME. Kanti for 6 traits including short internode, HP, HFPB, HFS AB and AS, whereas KMR-10-1 for oil content. High heritability coupled with high GAM for NS, HP, HFPB, HFS and HI indicated predominance of additive gene action and were least influenced by the environment. Suggesting Brassica juncea ideotype contributing to the highest yield in a specified environment ie under resource constrained rainfed situations (only basal dose of RDF and residual moisture condition), the study indicated importance of lower positioned primary basal branches accommodating at least two secondary branches per PBP, less number of primary and secondary Nbb, lower HFS, medium-tall plant, superior in root volume, more no. of siliqua, HI and DME.
Citations |
 |
 |
 |
 |
