关键词: 密穗小麦, 农艺性状, 相关分析

Abstract: Sixty Triticum compactum accessions from nineteen countries were evaluated for their agronomic performance.The results show that the heading date ranges from 151 to 195 days,including early-to late-maturing types,and most accessions are later type.Most accessions have higher plant height.Tiller numbers per plant are more than 10 and rate of spike to tillers average 70%.Obvious differences are found in spike length,spikelets per spike,but most accessions are dense spike type.T.compactum accession is higher in number of grain per spike with lower weight of 1000-grains.In addition,most accessions except 8 accessions are seriously susceptible to powdery mildew.Correlation analysis of characters indicates that shortening heading date can cause the increase in grains number per spike and 1000-grain weight,but decreases in spikelet per spike.

Key words: Triticum compactum, agronomic characters, correlation analysis