温麦6号小麦9000kg/hm2若干群体质量指标研究补报

通过两年对温麦6号小麦的小区试验和高产攻关调查研究,提出温麦6号小麦9000kg/hm~2的几个群体质量指标,即最高叶面积系数为10.0左右,高效叶面积率70％以上,有效叶面积率95％以上,每公顷成穗在750×10~4左右,分蘖成穗率50％左右,抽穗期无效分蘖残存率在5％以下。同时对上三叶的叶面积和叶质量以及小麦生育后期的干物质积累特点也进行了分析。

The Preliminary Study on Populations Quality Indexes in Wenmai 6 Wheat with Yield of 9000 kg per

Based on the investigation of plot test and high-yielding cultivation quality in dexes of Wenmai 6 wheat for 2 years, some population quality indexes of Wenmai 6 with yield of 9000 kg/hm2 are shown as follows: the highest coefficient of leaf area about 10.0, the high- available leaf area rate over 70% , the available leaf area rate over 95% , the ear-bearing tillers per 667 m2 about 500 thousands, the earbearing tiller rate in heading period below 50% and the residual rate of unavailable tillers in heading period below 5%. The leaf area leaf quality of 3 up per leaves and accumulative property of dry matter of Wenmai 6 wheat in late growing period are also analyzed.