New Selections of Two-Line Hybrid Rice

Abstract

    An experiment was carried out to compare two-line hybrid rice combinations in 2014 Spring and Summer season in Viet Nam National University of Agriculture, Gia Lam district, Ha Noi. The results showed that the hybrids were early maturing, ranging from 123-132 days in Spring season and 98-105 days in Summer season. Their plant height ranged from 108.6 to 122.2cm and the hybrids were resistant to diseases and insects, such baterial leaf blight and brown plant hopper. They had yield ranging from 5.9-7.7 tons/hectare in Spring season and 5.4-6.7 tons/hectare in Summer season with good grain quality and slender grain. Based on yield and quality two hybrid combinations, viz. E15S/R29 và E13S/R2 were selected for recommendation as potential two-line hybrid rice in Viet Nam.