An Evaluation of Yield Potential of Rice (Oryza Sativa) Genotypes under Conservation Agricultural Practices in Eastern Hill Plateau Region of India
Journal Title: International Journal of Agricultural Science and Research (IJASR) - Year 2019, Vol 9, Issue 4
Abstract
The study was carried out to evaluate three rice genotypes of paddy viz., Lalat, IR-64 & Naveen under conservation agricultural practices as farmer puddle transplanted (FP-T), zero tillage transplanted (ZTT) and zero till age with direct seeded rice (ZT-DSR) at farmers field during kharif season of 2016 and 2017. The two years pooled data revealed that higher number of tillers/plant (8.72) and numbers of panicle/row (49.6) were recorded in FP-T while panicle length had no significant effect. The highest number of grains per panicle was observed in farmer’s practice 134.6 and followed by direct seeded rice (123.6) and least in zero tillage transplanted rice (120.0). Similarly significantly highest numbers of filled grains per panicle (113.3) was recorded in FP-T and least in zero tillage transplanted rice (96.60). However the grain filling percentage was found maximum in direct deeded rice (89.3 %) followed by farmer’s practice (84.80 %) and least in zero tillage transplanted rice (78.8%). The grain yield in both the years found highly significant. The farmers practice recorded the highest yield of 5.35 t ha-1 followed by zero tillage transplanted rice (4.23 t ha-1) and least in direct seeded rice (4.16 t ha-1). However, the harvesting index was found highest in zero tillage transplanted rice (0.52) and least in direct seeded rice (0.48). Among the genotypes, the highest number of tillers per plant was recorded in Lalat (7.78) followed by IR-64 (7.76). The highest number of panicle per meter row (48.7) was recorded in IR-64 and least in Naveen (46.93). The maximum panicle length (23.84 cm), number of grains per panicle (142.95) and number of filled grains per panicle (130.7) was found in Naveen. The farmers practice revealed higher gross return of Rs. 81,855 ha-1 with a benefit- cost ratio of 2.72 and net return of Rs.51, 785 ha-1 as compared to the direct seeded rice which gave the net return (Rs.38, 128 ha-1) and benefit-cost ratio (2.49) and least was recorded in zero tillage transplanted rice of net return of Rs 36,899 ha-1 and BC ratio 1.13.
Authors and Affiliations
B. K. Jha, S. K. Naik, S. S. Mali, Omkar Kumar
Keywords
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- EP ID EP649229
- DOI 10.24247/ ijasrapr201930
- Views 147
- Downloads 0
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