期刊论文

Tang, C.(chzhtang2002@sina.com)

英文

农业工程学报

1002-6819

2012

28

S2

101-106

10.3969/j.issn.1002-6819.2012.z2.018

Alliance project of Hunan Science and Technology Agency （2010xk6001）；

本校为第一且通讯机构

In order to study the effect of airflow speed, affection position and affection angle on pneumatic pollination in hybrid rice breeding, test apparatus and experiments were designed and carried out in this paper. Effect of the three factors on effective area ratio, average density and non-uniformity of pollens distribution were analyzed through orthogonal rotational quadratic combination test method, and then regression equations to describe the relationship of factors and each assessment index were established with Design-Expert8.05 data. An optimum combination of input parameters was obtained...

为研究各作用因素对杂交水稻制种气力授粉效果的影响,该文设计了气力授粉试验装置,应用二次正交旋转试验设计方法,研究气流速度、作用位置和作用角度对花粉有效分布面积比率、花粉平均分布密度以及花粉分布不均匀度的影响。通过 Design-Expert8.05 数据处理系统建立 3 个因素对各指标影响的回归方程,进一步优化,得到最佳授粉效果的参数组合为:气流速度 21.98 m/s,作用位置为穗顶以下 16.85 cm,作用角度为 0。此时,花粉有效分布面积率为 88.75%,单视野花粉平均密度为 4.50 粒,花粉分布不均匀度为 19.53,授粉效果综合评价指数为最大值 0.744。该结果为研究杂交水稻气力式授粉技术及研制气力式授粉...