抗旱小麦新品种‘新麦39’的选育及性状分析

为了创制小麦抗旱育种的优良种质资源,更好利用现有的抗旱品种,本研究阐述抗旱小麦新品种‘新麦39’的选育过程,并利用灰色关联度对其丰产性进行分析。结果表明：‘新麦39’在两年三组试验中,其加权关联度均比对照‘洛旱7号’高,与统计分析结果一致;对‘新麦39’两年三组试验中相同试点的产量与三要素进行灰色关联度分析,三组试验均表现为千粒重>公顷穗数,穗粒数对产量的贡献有差异。由此可知,‘新麦39’是丰产性良好的抗旱新品种,可在干旱和半干旱地区推广应用,也是新的抗旱种质资源。

Breeding and Trait Analysis of a New Drought-Resistant Wheat Variety ‘Xinmai 39’

To develop excellent germplasm resources for drought-resistant breeding of wheat and to make better use of existing drought-resistant varieties, the breeding process of a new drought-resistant wheat variety ‘xinmai39’ was expounded, and the high productivity of this variety was analyzed by using the gray correlation degree. The results showed that the weighted correlation degree of ‘xinmai39’ was higher than that of the CK ‘luohan7’ in the three groups of two growing seasons, which was consistent with the statistical analysis results. The grey correlation degree analysis was conducted on the yield and three yield components of ‘xinmai39’ within the same site in the three groups of two growing seasons. All results showed that the contribution of thousand kernel weight > spike numbers per hectare, and the contribution of grain number per spike to grain yield was different. Therefore, ‘xinmai39’ is a new drought-resistant variety with high productivity, which can be extended and applied in arid and semi-arid regions, and it is also a new drought-resistant germplasm resource.