鲁西南超高产冬小麦品种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，依据三种类型小麦品种产量表现，筛选适宜鲁西南种植且大面积实现9750kg／hm2超高产水平的冬小麦品种，结果表明以济麦22、泰山23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，总结出鲁西南多穗型品种9750kg／hm2超高产群体质量指标：即每公顷成穗720万，起身期分蘖成穗率45％，穗粒数40粒，千粒重38g，最高叶面积系数为8．6，高效叶面积率75％，有效叶面积率95％以上。

Screening of Super-high-yielding Varieties and Study on Population Quality Indices of Winter Wheat in Southwest Shandong Province

The large-spike type,more-spike type and middle-spike type of winter wheat varieties were used to screen the suitable varieties for large-scale cultivation with 9 750 kg/hm2 of super-high yield in southwest Shandong Province.Based on their yields,the more-spike type varieties Jimai 22 and Taishan 23 were selected.The dynamic variation of the wheat populations were also analyzed systematically in this paper.Then the population quality indices for more-spike type wheat to obtain 9 750 kg/hm2 of yield were sum...