摘要
为鉴定和筛选云南省抗穗发芽青稞种质资源,对36份青稞资源进行整穗发芽试验、籽粒发芽试验和休眠期鉴定等相关研究,采用穗发芽抗性分级、平均隶属函数和聚类分析等数据分析方法进行穗发芽抗性评价。在整穗发芽试验中,36份青稞材料在穗发芽率和穗发芽度上均表现出差异,穗发芽率变化范围在4.17%~100.00%,穗发芽度变化范围在2.50%~88.94%;籽粒发芽率变异幅度在4.00%~100.00%,隶属函数平均值在0.0876~0.8000;综合评价结果表明,参试的36份青稞材料中共筛选出13份抗性较好的材料,包括高抗1份(云青602)、抗3份(云稞4号、川12259、20QK-97)、中抗9份(云大麦12号、滇青1号、滇青2号、滇青3号、迪青6号、中甸短白青稞、15YD-3、20QK-5、20QK-3),为云南青稞抗穗发芽育种提供了宝贵的材料,也为后续的青稞抗性资源筛选提供了参考方法。
To identify and screen the highland barley germplasm resources with resistance to pre-harvest sprouting in Yunnan Province,this study conducted whole-spike germination tests,seed germination tests and dormancy period identification on 36 highland barley resources.Data analysis methods such as pre-harvest sprouting resistance grading,average membership function and cluster analysis were used to evaluate the pre-harvest sprouting resistance.In the spike germination resistance classification experiment and whole-spike germination test,the 36 hulless barley(Hordeum vulgare L.var.nudum)materials exhibited significant variations in both spike germination rate(ranging from 4.17%to 100.00%)and spike germination degree(2.50%to 88.94%).The grain germination rate displayed a similar broad variability spectrum(4.00%to 100.00%).The membership function average values for comprehensive evaluation of sprouting resistance ranged from 0.0876 to 0.8000.The comprehensive evaluation results showed that among the 36 highland barley materials tested,13 materials with better resistance were screened out,including 1 highly resistant material(Yunqing 602),3 resistant materials(Yunke No.4,Chuan 12259,20QK-97),and 9 moderately resistant materials(Yundamai No.12,Dianqing No.1,Dianqing No.2,Dianqing No.3,Diqing No.6,Zhongdian short white highland barley,15YD-3,20QK-5,20QK-3),which can provide valuable materials for future highland barley pre-harvest sprouting resistance breeding in Yunnan Province and a reference method for subsequent screening of resistant resources.
作者
刘列
王志伟
乔祥梅
程加省
黄廷芝
程耿
王志龙
LIU Lie;WANG Zhiwei;QIAO Xiangmei;CHENG Jiasheng;HUANG Tingzhi;CHENG Geng;WANG Zhilong(Institute of Food Crops,Yunnan Academy of Agricultural Sciences,Kunming 650205,China)
出处
《大麦与谷类科学》
2025年第3期35-41,共7页
Barley and Cereal Sciences
基金
云南省财政重大专项(530000210000000013809)
云南省重大科技专项(202102AE090014)
云南省现代农业麦类产业技术体系(云农办科2020-40)。
关键词
青稞
穗发芽指数
穗发芽
抗性评价
Highland barley
Pre-harvest sprouting index
Pre-harvest sprouting
Resistance evaluation
作者简介
刘列(1994-),女,硕士,助理研究员,主要从事大麦新品种遗传与改良研究。Email:1040486742@qq.com;通信作者:王志龙(1988-),男,硕士,助理研究员,主要从事大麦新品种遗传与改良研究。Email:wzl@yaas.org.cn。
