摘要
晚播条件下为了实现‘云荞1号’的不同种植密度对苦荞产量及相关性状的影响,以目前该地区种植面积最大的‘云荞1号’为材料,采用4个不同密度(70万株/hm2、95万株/hm2、120万株/hm2、145万株/hm2),研究了苦荞晚播条件下,密度对苦荞产量及产量构成性状的影响。结果表明:晚播条件下种植密度对株高、一级分枝数、主茎节数等植物学性状没有显著影响,但对产量有显著差异;在145万株/hm2种植密度下产量最高,达2424.17 kg/hm2。晚播的‘云荞1号’在云南秋播区最适宜的播种密度是145万株/hm2。
To explore the influence of planting density on yield and yield composition of tartary buckwheat[Pagopyrumta taricum（L.）] of late sowing cultivation in Yunnan, we took‘Yunqiao 1＇, which accounted forthe largest planting area in the province, as the material to conduct the test. The design included 4 differentdensities（7.0×10^5, 9.5×10^5,12.0×10^5,14.5×10^5plants per hm^2） of tartary buckwheat. The results showed that： inlate sowing cultivation, planting density had no significant effect on the botanic characters such as plant height,first branch number, node number of main stem, but there were significant differences in yield; yield of 14.5×10^5plants/hm^2 planting density was the highest, up to 2424.17 kg/hm^2. Therefore, the most suitable plantingdensity of‘Yunqiao 1＇in Yunnan autumn sowing area is 14.5×10^5plants/hm^2.
出处
《中国农学通报》
2015年第9期128-131,共4页
Chinese Agricultural Science Bulletin
基金
国家燕麦荞麦产业技术体系"荞麦病虫草害防控岗位"(CARS-08-C-2)
云南省社会发展科技计划"稻类
普通菜豆
荞麦地方品种的高效利用研究"(2012CH009)
国家自然科学基金委员会地区科学基金项目"米苦荞易脱壳性的遗传特性和分子标记研究"(31460379)
