The development of flue-cured tobacco variety Zhongyan 99 and its characters
jia xing hua ; wang yuan ying ; feng quan fu ; chen zhi qiang ; luo cheng gang ; zuo dao ru ; liu hong xiang ; fu xian kui ; meng qing hong ; shi jin kai ; zhou zhong ren ; liu guang liang ; liu shao yun ; zhang li li ; wang shao mei