| 296 | 2 | 96 |
| 下载次数 | 被引频次 | 阅读次数 |
本研究根据14个耐旱指标对400份甜高粱种质的耐旱性进行鉴定,通过对不同耐旱指标之间进行相关性、显著性测验及主成分分析,识别甜高粱耐旱种质,选择适合南疆地区种植和推广的品种。结果表明:大部分性状指标间表现为较强的正相关关系,14个耐旱指标可聚为明显的三类,第二类的干旱敏感指数与第一类所有指标均呈较强的负相关关系,而与第三类性状指标间均呈正相关关系;14个耐旱指标可以用两个主成分表示,这两个主成分的方差解释率分别是49.5%和38.8%;各指标对前两个主成分的贡献具有明显的差异,第一主成分表示为甜高粱的生物产量潜力,第二主成分表示甜高粱的耐干旱胁迫能力;由双标图结果可识别出高产稳产耐旱品种‘S104’以及较耐旱的三个品种‘S370’‘S359’及‘S368’,为选育耐旱品种和后续耐旱基因的挖掘奠定基础。
Abstract：In this study, the drought tolerance of 400 sweet sorghum was evaluated according to 14 drought tolerance indexes. The correlation, significance test and principal component analysis between different drought tolerance indexes were carried out to identify drought-tolerant sweet sorghum and select varieties suitable for planting and promotion in southern Xinjiang. The results showed that most of the traits showed strong positive correlation and 14 index were divided into three categories. The drought sensitivity index of the second category had a strong negative correlation with all the index of the first category, while it had a positive correlation with all the traits of the third category. The 14 related index could be represented by two principal components, and variance explanations of these two principal components were 49.5 % and 38.8 % respectively.The contribution of each index to the first two principal components was significantly different.The first principal component was expressed as biological yield potential and the second principal component was expressed as drought tolerance of sweet sorghum. Drought-tolerant variety‘S104'with high and stable yield and relative drought-tolerant varieties‘S370'‘S359'and‘S368'were identified by biplot analysis, which could lay a foundation for breeding drought-tolerant varieties and subsequent gene mining.
[1]TUBEROSA R,SALVI S.Genomics-based approaches to improve drought tolerance of crops[J].Trends in Plant Science.2006,11(8):405-412．
[2]MIR R R,ZAMANALLAH M,SREENIVASULU N,et al.Integrated genomics,physiology and breeding approaches for improving drought tolerance in crops[J].Theoretical and Applied Genetics.2012,125(4):625-645．
[3]赵吉平，周伟，郭鹏燕，等．干旱胁迫对小麦品种株高与产量及抗旱性相关分析[J]．种子，2020,39(9):120-123．
[4]朱海平，李贵勇，夏琼梅，等．不同时期干旱胁迫对水稻产量和生长特性的影响[J]．中国稻米，2017,23(4):135-138．
[5]张赛楠，苏治军，高聚林．玉米自交系抗旱性评价及指标筛选[J]．北方农业农学报，2019,47(3):18-25．
[6]胡文明，徐翠莲，翟云龙，等．甜高粱株高性状影响因素分析方法比较[J]．东北农业大学学报，2016,47(9):7-15．
[7]李自超，刘文欣，赵笃乐．PEG胁迫下水、陆稻幼苗生长势比较研究[J]．中国农业大学学报，2001,6(3):16-20．
[8]MATHUR S,UMAKANTH A V,TONAPI V A,et al.Sweet sorghum as biofuel feedstock:recent advances and available resources[J].Biotechnology for Biofuels,2017,10(1):146-165．
[9]山仑，张岁岐，李文娆．论苜蓿的生产力与抗旱性[J]．中国农业科技导报，2008,10(1):12-17．
[10]李文娆，张岁岐，山仑．水分胁迫下紫花苜蓿和高粱种子萌发特性及幼苗耐旱性[J]．生态学报，2009,29(6):3066-3074．
[11]冯晓东，王悦，王晓洁，等．聚乙二醇模拟干旱对甜高粱幼苗生长及抗旱性的影响[J]．延安大学学报（自然科学版），2015(1):33-36．
[12]袁闯，许兴，唐三元，等．孕穗期甜高粱耐旱性鉴定[J]．生物技术通报，2019,35(12):1-9．
[13]赵香娜，李桂英，刘洋，等．国内外甜高粱种质资源主要性状遗传多样性及相关性分析[J]．植物遗传资源学报，2008,9(3):302-307．
[14]赵香娜，岳美琪，刘洋，等．国内外甜高粱种质遗传多样性的SSR分析[J]．植物遗传资源学报，2010,11(4):407-412．
[15]陆平．高粱种质资源描述规范和数据标准[M]．北京：中国农业出版社，2006．
[16]袁闯，许兴，毛桂莲，等．甜高粱成熟期抗旱性指标筛选与评价方法[J]．干旱地区农业研究，2020,38(1):280-289．
[17]汪灿，周棱波，张国兵，等．酒用糯高粱资源成株期抗旱性鉴定及抗旱指标筛选[J]．中国农业科学，2017,50(8):1388-1402．
[18]AMIRI R,BAHRAMINEJAD S,SASANI SH,et al.Genetic evaluation of 80 irrigated bread wheat genotypes for drought tolerance indices[J].Bulgarian Journal of Agricultural Science,2014,20(1):101-111.
基本信息:
中图分类号:S566.5
引用信息:
[1]杨斌,高丽娜,王梦如,等.基于生物产量的甜高粱耐旱性鉴定[J].塔里木大学学报,2021,33(04):62-68.
基金信息:
国家自然科学基金项目“甜高粱耐旱性评价及其与SSR标记的关联分析”（31660397）;国家自然科学基金项目“基于多性状联合分析的甜高粱抗倒伏性状相关优异等位变异挖掘”（31660300）
2021-07-12
2021
2021-08-20
2021-09-14
2021
1
2021-12-15
2021-12-15