ifference analysis on photosynthetic characteristics of cytoplasmic in hybrid rice

In order to study differences of photosynthetic characteristics in different rice male sterile cytoplasm, taking three different types of male sterile cytoplasm in the production application and maintain two yuan sterile line configuration as the test materials, the net photosynthetic rate, stomatal conductance and photosynthetic pigment content were determined. The results showed that, the photosynthetic pigment content, net photosynthetic rate and stomatal conductance reached significant or extremely significant difference among rice combinations. Net photosynthesis among different types of cytoplasmic reached extremely significant level. Chla, Chlb content and net photosynthetic rate of G-type cytoplasm rice combinations were significantly higher than those of other rice combinations. Hybrid combinations with JW-type cytoplasm had better cytoplasmic effect than Wild Abortive cytoplasmic and G-type cytoplasm.