Evaluation of Pre-harvest Sprouting Resistance of Major Barley Resources in Yunnan Province
LIU Lie
WANG Zhiwei
QIAO Xiangmei
CHENG Jiasheng
HUANG Tingzhi
CHENG Geng
WANG Zhilong
Abstract：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 0.087 6 to 0.800 0.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.
Keywords：Highland barleyPre-harvest sprouting indexPre-harvest sproutingResistance evaluation
Publication Date：2025-06-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 35-41 )