Higher leaf area through leaf width and lower leaf angle were the primary morphological traits for yield advantage of japonica/indica hybrids oleh Huan-he WEI, Yu-lin YANG, Xing-yu SHAO, Tian-yi SHI, Tian-yao MENG, Yu LU, Yuan TAO, Xin-yue LI, En-hao DING, Ying-long CHEN, Qi-gen DAI