›› 2012, Vol. 24 ›› Issue (2): 0-196.

• 作物科学 •    

Changes of pericarp thickness and soluble sugar during the kernel filling process of spring supersweet corn

YAO Jian-qiang;YU Qi-ying;WANG Mei-xing;ZHANG Lian-ying;ZHU Jin-qing;*   

  1. 1 Institute of Crops and Utilization of Nuclear Technology,Zhejiang Academy of Agricultural Sciences, Hangzhou 310021,China; 2 Seed Station of Zhejiang Province, Hangzhou 310020,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-03-25 Published:2012-03-25

Abstract:

The soluble sugar and pericarp thickness with three surfaces through the nine different ripe periods of supersweet corn varieties in different grain harvest time were determined and analyzed. The results showed that the pericarp thickness with three surfaces showed relatively independent trends in different ripe periods of supersweet corn, and the maximal content of soluble sugar appeared in 18-22 days after pollination. The harvest time of supersweet corn in different ripe stages was different. The picking period of fresh ear of precocious supersweet corn variety was 18 days or so after pollination, which was 20 days and 22 days after pollination for middle ripe supersweet corn variety and late ripe supersweet corn variety, respectively.

Key words: pericarp thickness, soluble sugar, supersweet corn, kernel filling