1. College of Agronomy and Biotechnology; Southwest University; Chongqing P. R. China
2. Department of Agronomy; University of Agriculture; Faisalabad Pakistan
3. Department of Crop Science and Technology; College of Agriculture; South China Agricultural University; Guangzhou P. R. China
4. Scientific Observing and Experimental Station of Crop Cultivation in South China; Ministry of Agriculture P. R. China; Guangzhou Guangdong P. R. China
5. School of Land and Food; University of Tasmania; Hobart Australia
6. Department of Agronomy; Muhammad Nawaz Shareef University of Agriculture; Multan Pakistan
7. School of Environment; Jinan University; Guangzhou P. R. China