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Abstract In order to reveal the changes in yield, dry matter accumulation, transport and photosynthetic characteristics of different paternal maize hybrids,the hybrids of Tangsipingtou bloodline, Luda red bloodline, Lancaster bloodline and tropical bloodline hybrids were used as experimental materials, and their yield, dry matter accumulation, transport and photosynthetic characteristics were analyzed by routine statistical analysis. The results showed that performances of both yield and net photosynthetic rate were as follows: hybrids with Tangsipingtou bloodline as male parent>hybrids with tropical bloodline as male parent>hybrids with Lancaster bloodline as male parent>hybrids with Buda red bone bloodline as male parent. The hybrids with Tangsipingtou bloodline as male parent had the highest contribution to dry matter accumulation, dry matter transfer and transfer rate, and dry matter transfer to grain. Correlation analysis showed that there was a significant positive correlation between yield and net photosynthetic rate and dry matter transfer rate (R=0.982*, 0.956*). In this experiment, the hybrid combination with Tangsipingtou bloodline inbred line as male parent and Reid bloodline inbred line as female parent was superior to other combinations in yield, dry matter accumulation and photosynthetic characteristics, which could increase the success rate of breeding.
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