河南农业科学2018，Vol.47Issue(3)：14-18,5.DOI:10.15933/j.cnki.1004-3268.2018.03.003
防虫网隔离对玉米花粉扩散的影响
Effect of Fly Net Separating on Pollen Dispersal of Maize
摘要
Abstract
The effect of fly net on the dispersal frequency of maize pollen was studied with the variety Kyu No.8 as the subject,so as to provide theoretical basis and technical support for the choice of fitness aperture and height of the fly net during small area production of seed or breeding of maize.The results showed that the outcrossing rate of the observation area decreased steadily with the increase of distance from the pollen donor zone,there were great differences in outcrossing rate for different orientation at the same distance,and the outcrossing rate of plants downwind was significantly higher than that of those upwind.Isolation with the aperture of 0.106 mm,0.058 mm,0.042 mm screens significantly reduced the pollen dispersal frequency.There was a small difference in the aperture effect between 0.058 mm and 0.042 mm,but all were better than the 0.106 mm.The study also found that screens with height of 3.5 m and 4.0 m had better isolation effect than 3.0 m screen. Thus,the fly net with height of 3.5 m and aperture of 0.058 mm was recommended for agricultural production.关键词
玉米/异交结实率/防虫网/花粉扩散Key words
Maize/Outcrossing rate/Fly nets/Pollen dispersal分类
农业科技引用本文复制引用
杨光华,王学林,曹明,柯用春,杨小锋..防虫网隔离对玉米花粉扩散的影响[J].河南农业科学,2018,47(3):14-18,5.基金项目
海南省重大科技项目(ZDZX2013010) （ZDZX2013010）
