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Evaluation of irrigated rice genotypes for agronomical traits under western terai region of Nepal  


Advances in Plants & Agriculture Research
Narayan Khatri,1 Dev Nidhi Tiwari,2 Mamata Bista,3 Khem Raj Pant1

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Abstract

An experiment was conducted at National Wheat Research Program (NWRP) Bhairahawa during wet season of 2016 to study the performance of different rice genotypes for yield and yield attributing characters. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. The twenty four rice genotypes including three released varieties as check were investigated in Coordinated Varietal Trial (CVT). The various agronomical data such as days to heading, days to maturity, plant height (cm), panicle length (cm), effective tilllers-2, 1000 grain weight (g), filled grain panicle-1 and grain yield (kg ha-1) was recorded. The analysis of variance revealed that minimum days to heading (101) was noted in GSR102 while maximum (129 days) was recorded in Mansuli. Significant variation in thousand grain weight was observed in rice genotypes. Maximum 1000 grain weight of 27 gram was recorded in GSR221 while lowest 1000 grain weight of 16 gram was observed in NR 2157-66-2-3-1-1-1. Similarly, significantly highest grain yield (3890 kg ha-1) was recorded in GSR221 genotype which was found at par with IR94391131-353-19-B-1-1-1-3 (3880 kg ha-1). Hence, based on the findings of this study, it was concluded that genotypes; GSR221, IR94391-131-353-19-B-1-1-1-3, NR2158-13-1-2-45, GSR102, GSR336, IR05N421 and GSR132 produced maximum grain yield and were found most suitable for the agro climatic conditions of western Terai of Nepal.

Keywords

irrigated rice, agronomic traits, genotypes, yield

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