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 |
The present study was carried out during Rabi seasons of 2017-18 & 2018-19 at Main Experimental Station, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya (U.P.). The experimental materials comprised of twenty genetically diverse varieties/strains and their 105 crosses. The 26 parents were involved in a crossing programme to develop a line x tester set (21 lines + 5 testers + 3 checks) during Rabi season of 2017-18in Randomized Block Design. The experimental materials were evaluated in two conditions i.e. timely sown (E1) and late sown (E2) condition for twelve quantitative characters. The harvest index (0.843), tiller per plant (0.154), spike length (0.146) showed highly positive phenotypic correlation with in E1 for grain yield per plant, whail grain yield per plant exhibited highly positive phenotypic correlation with harvest index (0.687), test weight (0.111) and spikelet per spike (0.101) in E2. The highest positive direct effect on grain yield per plant was exerted vai harvest index (1.340), plant height (0.005), penduncle length (0.003). Whereas E2 showed direct positive effect on grain yield per plant by harvest index (1.624), biological yield (1.179), and flag leaf area (0.016).The highest positive indirect effect on grain yield was exerted by days to maturity (0.141) via biological yield per plant followed by days to 50% flowering (0.092) via biological yield per plant, test weight (0.040) via biological yield per plant, tiller per plant and spike length (0.005) via biological yield per plant and flag leaf area (0.003) via biological yield per plant in E1. While in E2 highest positive indirect effect on grain yield showed by plant height (0.220) via biological yield per plant followed by days to maturity (0.151), tiller per plant (0.053) peduncle length (0.044), test weight (0.033).
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