Mestiso 29, a newly-released PhiRice-bred hybrid for irrigated lowland ecosystem
2012
Baldedara, L.S. | dela Cruz, I.A. | del Rosario, C. | Ablaza, M.S.F. | Rigor, A.T., Philippine Rice Research Inst. Maligaya, Science City of Munoz, Nueva Ecija (Philippines). Plant Breeding and Biotechnology Div.
Hybrid rice technology has been used as alternative approach to increase rice production and help to attain rice sufficiency in the country. PhilRice continues to develop hybrids with at least 15% yield advantage over inbred varieties. The main objective is to develop rice hybrids for the irrigated lowland ecosystem in the Philippines. A promising PhilRice-bred hybrid, PR36020H was entered in the National Cooperative Test (NCT) for rice in 2008. After successfully passing all the criteria in the NCT, the National Seed Industry Council (NSIC) recommended the hybrid for commercial use in the Philippines and was designated as NSIC 2011 Rc244H or Mestiso 29. It had an average yield of 7.03 t/ha and maximum yield of 11.2 t/ha with yield advantage of 18.1% across season and 27.1% during wet season over the check variety PSB Rc82. It is an early maturing variety, with intermediate plant height and tiller number. This hybrid showed intermediate resistance to brown plant hopper, green leaf hopper and yellow stem borer. Grain quality analysis showed that it had intermediate amylase content with long and slender grains, good milling recovery, high percentage acceptability in cooked form, and comparable sensory qualities to Mestiso 7. This hybrid generally performs well during dry and wet seasons under irrigated lowland transplanting culture. However, it was not recommended to be planted in areas with high incidence of BLB, blast and RTV.
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