摘要
【目的】探讨不同南引小麦品种在忻定盆地春播的丰产及稳产性,为引种春麦的筛选和推广提供科学依据。【方法】以长江中下游等地区引进的14个小麦品种为材料,在忻定盆地(属冬春麦混播区)进行春播,利用主成分分析对其产量及产量构成、抗逆性(抗倒伏指数、抗穗发芽指数)和生态适应性等指标进行综合分析与评价。【结果】2018~20192 a南引春麦整体评价指标分别可提取为3个主成分,累计方差贡献率为89.1086%、86.2682%;其中第一主成分(CI1)相当于3.528、3.366个单项指标的作用,可分别反映原始数据信息量的50.3998%、48.0858%,代表了品种生态适应性因子和产量因子,是南引春麦品种的主要评价指标;另2个主成分分别为抗逆性因子、产量构成因子(主要是穗粒数)。【结论】结合高稳系数法、灰色关联系数法等,据主成分得分对14个引种春麦进行综合评价,可知宁麦13、扬麦13、川麦104、渝麦9、扬麦18等5个南引品种的丰产及稳产性好,较适合忻定盆地春播及相似生态区种植。
【Objective】To explore the high and stable yield characteristics of different wheat cultivars introduced from south China in Xinding Basin,so as to provide scientific basis for the screening and popularization of introduced spring wheat.【Method】14 wheat cultivars introduced from the middle and lower reaches of the Yangtze river were used as materials for spring sowing in Xinding Basin(a mixed winter and spring wheat sowing area).The yield,yield composition,stress resistance(lodging resistance index,ear germination resistance index)and ecological adaptability were comprehensively analyzed and evaluated by principal component analysis.【Result】The overall evaluation indexes of spring wheat introduced in 2018 and 2019 could be extracted into three principal components respectively,and the cumulative variance contribution rates were 89.1086%and 86.2682%;In which,the first principal component(CI1)was equivalent to 3.528 and 3.366 single indexes,which could reflect 50.3998%and 48.0858%of the information of the original data,representing the ecological adaptability factor and yield factor of cultivars,and was the main evaluation index of introduced spring wheat cultivars;The other two principal components were stress resistance factor and yield component factor(mainly the number grains per panicle).【Conclusion】Combined with the high stability coefficient method and grey correlation coefficient method,the comprehensive evaluation of 14 introduced spring wheat cultivars according to the principal component score shows that five introduced wheat,including Ningmai 13,Yangmai 13,Chuanmai 104,Yumai 9 and Yangmai 18,are high-quality cultivars suitable for spring sowing in Xinding Basin and similar ecological areas.
作者
徐澜
秦秀娟
安伟
高志强
XU Lan;QIN Xiujuan;AN Wei;GAO Zhiqiang(Department of Biology,Xinzhou Teachers University,Xinzhou 034000,China;Maize Research Institute,Shanxi Agricultural University,Xinzhou 034000,China;College of Agronomy,Shanxi Agricultural University,Taigu 030801,China)
出处
《甘肃农业大学学报》
CAS
CSCD
2022年第3期32-41,共10页
Journal of Gansu Agricultural University
基金
国家现代农业产业技术体系重大专项(CARS-03-01-24)
忻州市科技计划(专项)项目
忻州师范学院学术带头人经费
黄土高原特色优质高效生产省部共建协同创新中心(SBGJXTZX-46)。
关键词
南引春麦
主成分分析
高稳系数法
灰色关联系数法
综合评价
winter wheat introduced from south China
principal component analysis
high stability coefficient method
grey correlation coefficient method
comprehensive evaluation
