Vol. 6, Issue 3 (2018)
Screening and identification of diverse rice germplasm for drought stress and irrigated condition
Author(s): Devidas Thomabare, Archana Prasad and Satish Verulaker
Abstract: Rice (Oryza sativa L.) is an important food crop and large amount of water required in its life cycle as compared to other crops. Drought is the major problem in most of the rice growing areas. In present study, yield and yield related traits like days to 50% flowering, plant height, panicle length, total number of tillers, number of effective tillers, etc. were observed in drought stress and irrigated condition. Among the traits observed, days to 50% flowering was quite earlier (83 days) in CHENGRI-2 during drought and KALOKUCHI-223 (79 days) in irrigated condition. Similarly, plant height in drought stress was 112.3 cm (IR7728-75-B-B) and irrigated 117.4 cm (DJOGLON-DJOGLO) which was lowest among all the genotypes. The panicle length in drought stress was 23.07 cm (BHATAJHOOLI) and control condition panicle length was observed in 23.42 cm (BHATAPHOOL). Highest number of tiller was observed in wild rice-99 (10.46 cm) and wild rice-41 (8.88 cm) under stress condition and irrigated conditions respectively. Number of effective tillers was highest in drought condition as compared to irrigated condition. The maximum number of panicle per plant was observed in SLO-16 (9.18) under stress condition and wild rice-41 (9.22) under irrigated condition. The seed index for PRATAO germplasm line was 2.17 gm and 2.35 gm during drought and irrigated conditions respectively. The highest grain yield in drought stress was in SAFRI17 (535 gm/m2) and RAMJIYAVAN (622 gm/m2) in irrigated condition. The highest performing genotype under drought stress also showed 35 percent yield reduction as compared to normal condition. It shows that the effect of drought can be minimized up to certain extent. In this study we focused on various morphological and seed parameters for selection of high yielding variety in drought and irrigated condition.
Pages: 1569-1572 | 504 Views 67 Downloads
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How to cite this article:
Devidas Thomabare, Archana Prasad, Satish Verulaker. Screening and identification of diverse rice germplasm for drought stress and irrigated condition. Int J Chem Stud 2018;6(3):1569-1572.
