摘要
【目的】评价16个玉米品种萌芽期的耐旱性和耐盐性。【方法】设置15%PEG-6000干旱胁迫、20%PEG-6000干旱胁迫、220 mmol/L NaCl盐胁迫、300 mmol/L NaCl盐胁迫和对照(清水)5个处理,通过加权隶属函数值法对16个供试玉米品种的耐旱性和耐盐性分别进行分级评价,利用GGE叠图法区分品种抗性,同时对不同胁迫处理在品种评价上的相似性和区分能力进行分析。【结果】加权隶属函数值法评价结果为伊单131和真金308属于耐旱品种,伊单81属于耐盐品种;利用GGE叠图法区分不同胁迫处理发现,15%PEG-6000、20%PEG-6000和300 mmol/L NaCl 3个胁迫处理呈正相关关系,综合评价16个玉米品种的耐旱性和耐盐性,伊单131、伊单81和真金308耐旱性较好,伊单81、伊单507和胜丰青贮2号耐盐性较好。【结论】伊单131属于耐旱品种、伊单81是既耐旱又耐盐的玉米品种。
【Objective】The drought tolerance and salt tolerance of 16 maize varieties at germination stage were evaluated.【Methods】Five treatments including 15%PEG-6000 drought stress,20%PEG-6000 drought stress,220 mmol/L NaCl salt stress,300 mmol/L NaCl salt stress and control(water)were set up.The drought tolerance and salt tolerance of 16 maize varieties were evaluated by weighted membership function value method.The GGE map was used to distinguish the tolerance of varieties.At the same time,the similarity and discrimination ability of different stress treatments in variety evaluation were analyzed.【Results】The weighted membership function value method evaluation results showed that,Yidan 131 and Zhenjin 308 were drought tolerant and Yidan 81 was salt tolerant;the GGE map was used to distinguish different stress treatments,the results showed that 15%PEG-6000,20%PEG-6000 and 300 mmol/L NaCl were positively correlated.The comprehensive evaluation of drought tolerance and salt tolerance of 16 maize varieties showed drought tolerance:Yidan 131,Yidan 81 and Zhenjin 308,and salt tolerance:Yidan 81,Yidan 507 and Shengfeng silage No.2.【Conclusion】Yidan 131 was a drought tolerant maize variety,and Yidan 81 was a drought and salt tolerant maize variety.
作者
邱鹏程
苗永茂
杜永春
常国有
吴云霞
QIU Pengcheng;MIAO Yongmao;DU Yongchun;CHANG Guoyou;WU Yunxia(Ordos Academy of Agricultural and Animal Husbandry Sciences,Kangbashi 017000,China;Inner Mongolia Agriculture and Animal Husbandry Ecology and Resource Protection Center,Hohhot 010011,China;Dalad Banner Seed Management Station,Shulinzhao 014300,China;Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China)
出处
《北方农业学报》
2021年第2期11-16,共6页
Journal of Northern Agriculture
基金
内蒙古农牧业青年创新基金项目(2017QNJJN06)
内蒙古自治区“草原英才”工程产业创新创业人才团队项目
内蒙古自治区科技成果转化专项资金项目(2019CG070)。
关键词
玉米品种
萌芽期
耐旱性
耐盐性
综合评价
Maize variety
Germination stage
Drought tolerance
Salt tolerance
Comprehensive evaluation
