论文部分内容阅读
引进水稻精量穴直播机,在Y两优1号制种中进行母本机械穴直播、母本人工撒直播、母本育秧移栽制种技术对比试验,观察3种栽培方式母本生育特性、苗数动态、群体穗粒构成、抽穗开花习性、异交结实率及产量。结果表明:机械穴直播母本的播始历期较人工撒直播长2 d,比育秧移栽短3 d;机械穴直播母本抽穗开花集中,群体穗粒构成完全能达到杂交水稻高产制种技术要求;异交结实率最高,产量相当,且节省劳动力,减轻劳动强度,提高工作效率。
The introduction of rice precision hole direct seeding machine, Y Liangyou 1 seed production in the mother machine hole direct seeding, mother-plant live broadcasting, mother-seedling transplanting seed production technology comparative test to observe the three kinds of cultivation methods female reproduction characteristics , The number of seedling dynamics, the composition of population panicles, heading and flowering habits, the rate of outcrossing and yield. The results showed that the broadcast duration of direct seeding mother of mechanical hole was 2 days longer than that of artificial sowing, shorter than that of transplanting seedling for 3 days. Technical requirements; outcrossing the highest seed yield, and save labor, reduce labor intensity and improve work efficiency.