胶东半岛冬小麦9750kg/hm~2超高产品种类型筛选及群体质量指标研究

试验以大穗型(450万穗/hm2左右)、中间型(525~600万穗/hm2)、多穗型(675万穗/hm2左右)品种为研究对象,通过三种类型小麦品种产量表现,筛选适宜胶东半岛种植且大面积实现9750 kg/hm2超高产水平的冬小麦品种,筛选结果以烟农24、烟2070为代表的多穗型品种为首选。试验系统分析了三种类型小麦群体的动态变化特点,指出胶东半岛多穗型品种9 750 kg/hm2超高产群体质量指标:每公顷成穗720万,起身期分蘖成穗率45%,穗粒数40粒,千粒重38 g,最大叶面积系数为8.6,高效叶面积率75%,有效叶面积率95%以上。

Selection of Winter Wheat Cultivars with 9750 kg/hm2 Grain Yield and Study on Their Community Indices in Jiaodong Peninsula

The experiment was conducted to invest yield components of three type wheat cultivars,large-spike type,multi-spike type and mid-spike type,in order to find super-high-yield wheat cultivars with 9750 kg/hm2 grain yield planted in large areas in Jiaodong peninsula.The results showed that large-spike wheat cultivars were the best,such as Yannong 24 and Yan2070.Community dynamic characters of three type wheat cultivars were analyzed systematically.The community indices of large-spike wheat cultivars with 9750 kg/hm2 grain yield planted in Jiaodong peninsula were spikes per hectare 720×104,ear-bearing rate of tillering at jointing stage 45%,grain number per spike 40,1000-grain weight 38 g,the highest leaf area index 8.6,high-available leaf area rate 75%,effective leaf area rate over 95%.