热带作物学报2017，Vol.38Issue(9)：1645-1652,8.DOI:10.3969/j.issn.1000-2561.2017.09.011
26份割手密种质材料的抗旱性差异评价
Comprehensive Evaluation on Drought Resistance Difference of Twenty-six Saccharum spontaneum L.Accessions
摘要
Abstract
Twenty-six S.spontaneum accessions were used as the materials under the normal water and drought stress treatment,13 morphological indices,physiological indices and photosynthetic parameters were measured at early elongation stage.Comprehensive evaluation of drought resistance by the methods of correlation,clustering,fuzzy membership function analysis were undertaken.The results showed that the drought resistance index of different materials were obviously different.The drought resistance of S.spontaneum accessions were also different under the drought stress treatment.Correlation analysis showed the relative values of chromosome numbers and drought resistance were highly significantly negatively correlated.And the relative values of leaf area and drought resistance were highly significantly negatively correlated.Membership function and cluster analysis showed that the twenty-six accessions could be divided into three categories,including one accession as the high drought-resistant type (2013-13),14 accessions as the drought-resistant type and 11 accessions as the drought-sensitive type.The study would lay the foundation for exploring drought-resistant genes to improve new available sugarcane varieties.关键词
甘蔗/割手密/抗旱鉴定/模糊隶属函数法Key words
Sugarcane/Saccharum spontaneum L./drought resistance identification/Fuzz membership function分类
农业科技引用本文复制引用
王天菊,王先宏,杨清辉..26份割手密种质材料的抗旱性差异评价[J].热带作物学报,2017,38(9):1645-1652,8.基金项目
国家自然科学基金项目缅甸甘蔗野生种质资源采集及鉴定(No.31460372) （No.31460372）
西藏甘蔗野生种质资源补充考察采集及鉴定(No.31260348). （No.31260348）
