作者机构:[1]Key Laboratory of Bionic Engineering (Ministry of Education, China), Jilin University, Changehun 130022, P. R. China, [2]Agricultural Research Council, Institute for Agricultural Engineering, Private Bag X 519, Silverton 0127, Pretoria, South Africa
相关基金:This research was supported by the National Natural Science Foundation (Grant No. 50875107) and the National Hi-Tech Program of China (Grant No. 2010AA101401-3).