Physiological Responses to Drought and Salt Stress in Different Mutants of Sweet Sorghum Induced by Heavy Ion Irradiation

• 作者: Dong Xicun Jin Wenjie Li Wenjian Liu Ruiyuan Qu Ying
• 来源期刊: 中国科学院近代物理研究所和兰州重离子研究装置年报:英文版
• 学科: 农学
• 关键词: BREEDING DROUGHT SORGHUM
• 年，卷（期）: 2018,（1）
• 页码范围: 138-138
• 页数: 1页
• 分类号: S51

摘要

Drought and salt stress are the two main abiotic factors which can affect the yield and quality of sweet sorghum.In order to better understand the tolerance mechanism of seeding stage of sweet sorghum induced by drought and salt stress and to breeding the salt-tolerant or drought-tolerant varieties sweet sorghum,three mutants of sweet sorghum(KFJT-1,KFJT-3,and KFJT-4)induced by heavy ion irradiation and their wild type(WT)were used as materials in this study.Salt and drought stress were treated with NaCl and PEG6000,respectively.The germination rate,root bud length,dry weight,leaf area,root/shoot ratio,and water content were measured.And these indexes were used to evaluate the salt and drought resistance of sweet sorghum.The principal component analysis and cluster analysis were used to evaluate the overall salt and drought tolerance of sweet sorghum.