Varietal characteristics and yield performance of hybrid rice NSIC Rc368H (Mestiso 55)
2018
Caguiat, J.D. | Gramaje, L.V. | Luciano, V.P. | Ablaza, M.S.F. | Tabanao, D.A.A. | Manangkil, O.E. | Argayoso, M.
The use of hybrid rice with its 15-20% yield advantage over inbred is one of the strategies to help achieve rice self-sufficiency. The Philippine government supports this program by setting a goal of 1 million hectares planted with 25% contributed by public rice hybrids. This study aimed to evaluate the yield performance, pest and disease reaction and grain quality and to characterize morphoagronomic traits of Mestiso 55. Data indicated that it has an average yield of 6.2 t/ha during the DS, maximum yield of 10 t/ha and yield advantage of 15.6% over the check variety, PSB Rc82. Based on grain quality standard, it has intermediate amylase content with long and slender grain, with premium milling recovery and grade 1 headrice recovery. It has high percentage acceptability both in cooked and raw forms as compared to IR64, the eating quality check and PSB Rc82, the check variety. It exhibited intermediate reaction to blast in all test sites, intermediate reaction to bacterial lead blight and sheath blight in PhilRice Midsayap, UPLB and WESVIARC, and resistant to moderately resistant to whiteheads (YSB) in BIARC and PhilRice Isabela. Mestiso 55 recorded an average yield of 5319.6 t/ha in 30 PVS sites across 14 regions in the country, with highest yield of 10448 t/ha against the check variety NSIC Rc222 with 8076 t/ha yield (Ilocos Sur) during 2017DS. During 2015WS, Mestiso 55 recorded an average yield of 5531.3 t/ha across 17 sites with highest recorded yield of 9689.9 t/ha in Lanao del Norte. This hybrid was recommended for dry season planting in irrigated lowland areas and transplanting culture and was released by the National Seed Industry Council with the registry number NSIC Rc368H.
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