HomeInternational Rice Research Notesvol. 26 no. 1 (2001)

Japanese Cultivar Cytoplasm Affects Seedling Vigor and Heterosis

J. C. De Leon | T. Abe | T. Sasahara

Discipline: Agriculture, Plant Breeding



In higher plants, cytoplasmic genome variation has been associated with male sterility, miniature kernel mutation, chloroplast deficiency, and disease susceptibility and, in rice, with heterosis and combining ability performance for yield and other traits (Young and Virmani 1990). To date, similar studies in relation to early plant growth are scanty. Thus, we report on the phenotypic effect of japonica rice cytoplasm on seedling vigor and heterosis.