G XE Interaction and Ammi Biplot analysis of Harvest Index and test Grain weight in direct seeded Basmati Rice
Harvest index (HI) is directly proportional to grain yield and inversely to total biological yield. The HI of direct-seeded rice is often lower than that of transplanted crops. Cultivars able to maintain a high HI are preferred for direct seeding. Aimed so,22 basmati rice genotypes comprising released varieties and elite lines including an hybrid were evaluated under direct and indirect seeding conditions. In direct seeding wet (DSR-wet) and dry (DSR-dry) and under indirect seeding transplanted rice (TPR) and system of rice intensification (SRI) made the four environments of experiment. The experiment was conducted during kharif 2014-2015 season in RBD with three replications at experimental farm of CCSHAU, College of Agriculture, Kaul. Plot size consisted of 5 row of 2m length and 0.20m breadth. Standard agronomic practices of different production systems were followed. Data were recorded for HI and test grain weight. Stability parameter and AMMI biplot identified genotypes Pusa Basmati-1, HKR 08-425 and Haryana Basmati-1 with high HI adaptable to better environment SRI and DSR. Genotype Pusa Basmati 1509, PusaSugandh 5, HKR 06- 443, CSR-30 and Pusa RH 10 were identified to be stable for test grain weight. Environment wise genotype Traori Basmati and PusaSugandh 5 were adapted to DSR (dry) while HKR 06-487 and Pusa RH 10 were adapted to DSR (wet) for HI.
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