Effects of shading stress on root qualities of purple sweetpotato

摘要：

In order to research effects of shading stress on root qualities in different genotypes of purple sweetpotato,artificial shading treatments were adopted. The results indicated that dry matter, total starch content and starch accumulation rate in the root of purple sweetpotato all would decrease significantly contrast to the control under shading stress. Shading treatments could not only significantly increase amylose content and the ratio between amylose and amylopectin,but also significantly decrease peak viscosity,break down,set back and pasting temperature of Jishu18. Shading treatments could improve soluble sugar and soluble protein in two varieties significantly. The response to stress of Jishu18 was more sensitive than Ayamurasaki. The results showed that the shading stress changed root qualities of purple sweetpotato and displayed different effect among varieties.

关键词： shading stress purple sweetpotato quality

作者: WANG Qing-mei HOU Fu-yun WANG Zhen-lin WANG Bao-qing DONG Shun-xu ZHANG Hai-yan LI Ai-Xian ZHANG Li-ming XIE Bei-tao

作者单位: Crop Science Research Institute,SAAS,Jinan Shandong 250100,China Agricultural Department,Shandong Agricultural University,Taian,271018

会议类型: 国际会议

会议名称: China Xuzhou 4th International Sweetpotato Symposium & 4th China-Japan-Korea Workshop(中国徐州第四届国际甘薯学术研讨会暨第四届中日韩甘薯学术讨论会)

会议地点: 徐州

会议语种:英文

页码: 348-357

在线出版日期: 2010-11-27（万方平台首次上网日期，不代表论文的发表时间）