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玉米是旱地作物,异常的气候和不适当的栽培技术,常造成制种父本偏早偏迟或花期不遇。解决玉米制种花期问题,除通过栽培技术促控外,如果辅之于父本雄穗离体培育人工辅助授粉利用技术,玉米制种高产稳产就增强了保险系数。 1.父本雄穗离体培育的方法: 父本雄穗离体培育的方法有水培法和土培法两种,其方法简便易行。①水培法:取制种片内同一组合的多余父本或繁殖地内雄花分枝已散粉约一半的同种源父本雄穗,每10枝雄穗扎成一小把,插于盛有清洁饮用水的广口瓶、茶缸或水桶内,次日早上8点将雄穗取出用毛巾抹去主枝上的水分,插于室外空瓶或空缸内,30分钟后即可取粉采粉,收粉
Maize is an upland crop, an abnormal climate and inappropriate cultivation techniques, often resulting in a late or late flowering of paternal parents. To solve the flowering of maize seedling problems, except through cultivation techniques to promote control, supplemented by male parent tassel in vitro cultivation of artificial pollination technology, high yield and stability of corn seed increased the insurance factor. 1. male parent tassel in vitro culture methods: male parent tassel in vitro culture methods are hydroponics and soil culture two, the method is simple and easy. ① Hydroponics method: Take the same combination of seeds within the extra paternal male or breeding ground branches have been scattered about half of the source of the same source of male tassel, every 10 branches tied into a small tassel, inserted in Sheng cleaning Drinking jars, tea pots or buckets, the next morning at 8 o’clock in the morning to remove the towel with a towel to wipe off the main branch of the water, inserted in an empty bottle or empty cylinder, after 30 minutes to take powder, Powder