Abstract:

Abstract: In order to select the waxy corn which fit for the winter Cultivation in Guangdong, 10 waxy corn varieties were chose from North China and two varieties from Guangdong for the control, they are Xiang Nuo618, Huang nuo Yi Hao, Ni Bei Bai Nuo, Yan He Jin2000, Shen Nuo No. 1, Xue Nuo No.2, Zhong Nuo No.2, Jiang Nan Hua Nuo, Yan He Jin2005, Nong Da Bai Zao Nuo, Xiang Bai Nuo, Guang Nuo Yi Hao. The blades on seedling stage and filaments on florescence were picked to test the SOD and MDA. By comparing the chilling resistance through the value of SOD and MDA, measuring the contents of amylon, amylopectin, protein and fat of the seeds, as well as tasting them, the waxy corns which with both higher chilling resistance and quality were selected. The results of the experiment show that the chilling resistance of the varieties Li Bei Bai Nuo and Yan He Jin2000 in sowing date one and Xiang Nuo618, Huang Nuo Yi Hao, Nong Da Bai Zao Nuo, Zhong Nuo Er Hao and Li Bei Bai Nuo in sowing date two were better than controls obviously. The quality of Yan He Jin2000, Xue Nou No.2 and Yan He Jin2005 were the best. To sum up, Yan He Jin2000 was the best one from 10 waxy corns across the country which suit to the winter cultivation in Guangdong.