A Comparative Study of Eight Hereditary Structures of Some Field Traits in Rice Yield in the Mashkhab Region

Abstract

This study was carry out at the Rice Research Station in Muskhab / Najav-Iraq in the cultivar season 2014. Eight genotypes were sawing six of them aerobic rice and two drought tolerance local varieties rice in three replicated and all replicated was exposure to five stress (0, -15, -33, -75, -100) Kpa. Randomize Complete Block Design (RCBD) used arrange split plot. The study induced Plant height, panicle length, fertility percentage, thousand grain weight and grains yield characters. The results showed that there were significant differences between genotypes in plant height, fertility percentage and grain yield. We found significant difference between water stresses treatment in plant height, fertility percentage and thousand grain weight. There was significant difference between the genotypes and water stresses interaction in plant height character only. We concluded from this study that Aerobic rice genotype 26 superior in lo plant high 60.20 cm, lo fertility percentage 15.5% and high grain yield 7148 Kg/h.