February 20 was the field day of Jiangsu Maize Breeding Collaborative Group in Sanya, Hainan. More than 20 representatives of the Institute of Food Crops of JAAS, Jiangsu Yanjiang Institute of Agricultural Sciences, the School of Agriculture of Yangzhou University, Jiangsu Zhongjiang Seed Industry Company, Jiangsu Zhonghua Seed Industry Company and Suqian Zhongjiang Seed Industry Company joined the demonstration and observation.
The activity was hosted by Prof. Yuan Jianhua, chief scientist of Jiangsu Maize Breeding Collaborative Group. The representatives examined 381 maize and hybrid varieties introduced from CIMMYT, the U.S.A., and Canada in the off-season breeding station.
During the seminar, the representatives reached the agreement that, as for the maize germplasm innovation and new varieties breeding, the breeding goals should be adjusted and the method should be modified. The focus should still be put on local heterosis, recurrent selection strategy should be insisted and new maize varieties with high grain quality and yield, lodging resistances and stress tolerance will be developed. After the discussions, the representatives decided as follows: first, the activity of Field Day will still be carried on for maize germplasm resources and breeding techniques communication; second, sharing agreements will be signed so that exchanges of inbred lines will be guaranteed; third, the identification for new varieties and crop properties will be strengthened; forth, the distribution and utilization of seeds (germplasm) will be reinforced with the support of Jiangsu Maize Comprehensive Experiment Station and under the items of the technology system.
After the field observation, the seminar also outlined the 2012 Group academic activities.