[李源环; 张龙辉] College of Agronomy, Hunan Agricultural University, No. 1 Nongda Road, Furong District, Changsha, Hunan 410128, China
[彭曙光; 周志成] China Tobacco Mid-South Agricultural Experimental Station, No. 1 Nongda Road, Furong District, Changsha, Hunan 410128, China
[陈治锋; 田明慧; 张明发] Xiangxi Autonomous Prefecture Tobacco Company of Hunan Province, No. 118 Renmin South Road, Xiangxi, Jishou, Hunan 416000, China
[邓小华] College of Agronomy, Hunan Agricultural University, No. 1 Nongda Road, Furong District, Changsha, Hunan 410128, China, China Tobacco Mid-South Agricultural Experimental Station, No. 1 Nongda Road, Furong District, Changsha, Hunan 410128, China