单旋翼农用无人机辅助杂交水稻制种授粉效果研究

2012～2015年采用单旋翼农用无人机分别在湖南、海南、广东杂交水稻制种基地对10个杂交组合父母本大行比制种,在不同自然风速条件下辅助授粉,通过田间花粉密度观测、母本异交结实率及制种产量考查研究授粉效果.结果表明,父母本行比6∶(40～60),单旋翼农用无人机辅助授粉的结实率和产量可达到甚至高于人工辅助授粉,说明单旋翼农用无人机可用于杂交水稻制种辅助授粉,促进制种全程机械化.

Effects of Supplementary Pollination by Single-rotor Agricultural Unmanned Aerial Vehicle in Hybrid Rice Seed Production

In 2012-2015,under the conditions of different natural wind speeds,the single-rotor agricultural unmanned aerial vehicle was used for the supplementary pollination during seed production of 10 hybrid combinations with big parental row ratios in the hybdd rice seed production bases of Hunan,Hainan and Guangdong Province,and the pollination effects were studied through the investigation of pollen density in the field,outcrossing seeding rate of female parent and seed production yield.The results showed that under the parental row ratio of 6∶(40-60),the seed setting rate and yields of the supplementary pollination by single-rotor agricultural UAV could reach and even higher than those of artificial pollination,indicating the single-rotor agricultural UAV could be used in supplementary pollination for hybrid rice seed production,which could promote the whole-process mechanization of seed production.