论文部分内容阅读
沈葵杂1号向日葵杂交种,1982年7月经辽宁省品种审定委员会审定推广应用。几年来,这个杂交种在生产上表现出较显著的增产优势。种子部门进行较大面积制种,取得了一定效果。现将沈葵杂1号向日葵杂交制种必须注意的几个技术环节介绍如下: 1.选择好隔离区和制种地向日葵是典型的虫媒花植物,主要靠蜜蜂等昆虫传粉结实,因此要求比风媒花和自花授粉作物制种有更严格的隔离条件。向日葵制种田一般与周围生产田和房前屋后零星种植地块,最少要有3000米
Shen Kwai hybrid sunflower hybrids on the 1st, in July 1982 by the Liaoning Provincial Committee examined and approved the promotion of the use of species. In recent years, this hybrid has shown a significant yield advantage in production. Seeds of a larger area of seed production, and achieved some results. Now sunflower hybrid sunflowers 1 hybrid seed production must pay attention to several technical aspects are as follows: 1. Select the isolation zone and seed production Sunflower is a typical insect-resistant plants, mainly by bees and other insect pollination strong, and therefore requires the wind Planting and self-pollination of seed production have more stringent isolation conditions. Sunflower farming generally and around the production of fields and houses in front of the sporadic planting plots, at least 3,000 meters