当前山东省小麦主推品种春化弱强和排序及类型划分研究

为了明确当前山东省小麦主推品种的春化表现,以应对秋冬气候变暖,依品种春化特性科学确定始播期,从秋种源头上预防冬前旺长和越冬期冻害,选择了19个小麦主推品种,以春麦辽春18为CK,采用干种子田间春季分期播种和室内人工春化晚春田间定植2种方法,研究了19个主推品种的春化弱强和排序,并对其春化类型进行了划分。结果表明:按春化从弱到强依次排序为辽春18→济麦20→济宁16→潍麦8→济麦22→良星99→济南17→邯6172→烟5286→山农664→济麦19→烟农24→济宁12→烟农15→泰山23、淄麦12→临麦2和泰山9818→济麦21→烟农19。烟农19和济麦21为冬型,其余17个冬麦品种均为半冬型。半冬型品种占绝大多数,冬型品种很少。在半冬型品种中,排序越在前,春化越弱;排序越在后,春化越强。

Study on Vernalization Characteristics of Main Popularized Wheat Cultivars In Shandong Province

To clarify the vernalization characteristics of main popularized wheat cultivars in Shandong Province,to cope with climate warming in autumn and winter,determine the accurate sowing stage according to vernalization characteristics of cultivars,and prevent vigorous growth beforewinter and freeze injury during wintering period,the vernalization characteristics of nineteen main popularized wheat cultivars were studied by interval sowing in spring and indoor artificial vernalization then transplanted in field in late spring.The resuts showed that the sequence from weak to strong of the vernalization characteristics of wheat cultivars was Liaochun 18,Jimai 20,Jining 16,Weimai 8,Jimai 22,Liangxing 99,Jinan 17,Han 6172,Yan 5286,Shannong 664,Jimai 19,Yannong 24,Jining 12,Yannong 15,Taishan 23 and Zimai 12,Linmai 2 and Taishan 9818,Jimai 21,and Yannong 19.Both Yannong 19 and Jimai 21 were winter type,and the other 17 cultivars were semi-winter type.