摘要
通过对高邮地区近几年小麦超高产实例及其产量构成因素进行分析,得出小麦产量超过600 kg/667 m^2的产量三要素指标:穗数30.9~35.3万/667 m^2,每穗粒数45.2~52.2粒/穗,千粒质量38.7~43.1 g。同时,在稳定每穗结实粒数和千粒质量的基础上,提高单位面积有效穗数是高邮市小麦实现超高产的前提。通过对超高产小麦群体特征进行分析,总结出相应配套栽培技术。
The present study analyzed several super-high-yielding wheat varieties with regard to their actual yields and the values of three yield components （spike number/667m2, grain number per spike, and thousand grain weight） attained in Gaoyou City in recent years. As a result, in the fields with wheat yield exceeding 600kg/667m2, spike number/667m2 was in the range of 3.09-3.53 x 105 /667m2, the grain number ranged from 45.2 to 52.2 per spike, and thousand grain weight was in the range of 38.7-43.1g. In addition, with a certain level of grain number per spike and thousand grain weight, increasing the number of effective spikes in a unit area led to a higher wheat yield in the fields of Gaoyou City. Moreover, based on the analysis of population characteristics of the super-high-yielding wheat varieties, we sum up the supporting cultivation techniques for them, which may serve as guidelines for achieving high yields in wheat production.
出处
《大麦与谷类科学》
2017年第1期19-23,27,共6页
Barley and Cereal Sciences
基金
江苏中北部稻麦两熟丰产增收模式创新与示范(BE2015340)
关键词
小麦
超高产
群体特征
超高产栽培
Wheat
Super-high-yield
Population characteristics
Cultivation
