基金supported by Australian Centre for Intemational Agicultural Research(ACLAR)95’Key Project of the China Ministry of Science and Technology,Shandong Committee of Science and Technology and Shandong Foundation for Natural Science.
基金supported by the Australian Center for Intemational Agricultural Research(ACIAR)95'Key Project of the China Ministry of Science and Technology,Shandong Comittee of Science and Technology and Shandong Foundation for Natural Science.