河南省联合体试验小麦品种综合性状分析与评价OA北大核心CSTPCD

Consortium experiment is a new measure to broaden the channels of crop variety approval experiment under the current agricultural situation in China.In order to deeply understand the experiment capacity of wheat consortium experiment in Henan Province and master the agronomic traits and quality traits of its varieties,comparative analysis and evaluation were conducted between the consortium experiment varieties and the provincial unified experiment varieties,based on the wheat varieties approved by Henan Province in the past three years(2021-2023).The results showed that Henan Province approved a total of 355 wheat varieties from 2021 to 2023,including 187 consortium experiment varieties.The consortium experiment capacity showed an upward trend,and the proportion of varieties increased from 48.3%in 2021 to 61.2%in 2023.The consortium experimental group was single,mainly including winter wheat-irrigation group.In the winter wheat-irrigation group,when applicants independently applied for varieties,the proportion of universities and research institutes through consortium experiment channel was higher than that through provincial unified experiment channel,and individual applicants were more inclined to provincial unified experiment channel.Compared with the provincial unified experiment,the difference of agronomic traits of the consortium experiment wheat was larger at the early stage and smaller at the later stage.Among the 7 agronomic traits,5 traits were significantly or extremely significantly different in 2021,and 2 traits were significantly different in 2023.The difference of quality traits was relatively smaller,but also showed the rule of large at the early stage and small at the late stage.Among the 7 quality traits,2 traits were significantly different in 2021,and there was no significant difference in 2023.The variation coefficient and diversity of agronomic and quality traits of the consortium experiment varieties were greater than those of provincial unified experiment varieties.Principal component analysis was used to transform 14 agronomic and quality traits into 7 principal components,which reflected 81.51%of the original information.The evaluation results based on principal component analysis showed that among the top 50 varieties with comprehensive scores,the varieties with higher comprehensive scores in the wheat consortium experiment accounted for a relatively smaller proportion of all varieties.In 2021 and 2023,there were 5 and 14 varieties respectively,accounting for 9.3%and 17.9%of all consortium experiment varieties.The varieties with higher comprehensive scores in the provincial unified experiment accounted for a relatively larger proportion of all varieties,with 4 and 5 in 2021 and 2023,respectively,accounting for 19.0%and 35.7%of all provincial unified experiment varieties.In summary,the capacity of Henan wheat consortium experiment is constantly increasing,and the dispersion of agronomic and quality traits is relatively larger;The gap of comprehensive scores of varieties between the consortium experiment and the provincial unified experiment is narrowing;Relevant departments can adjust and optimize the consortium experimental group according to the market in the future,focus on the issues of consortium experiment channel,and promote the high-quality development of the consortium experiment.