平作种植密度对黄芩生育性状和产量的影响

[目的]研究平作种植密度对黄芩生育性状和产量的影响。[方法]密度设4个处理水平,测定黄芩的生育指标和生物量。[结果]随着种植密度增加,单位面积的根重、地上重和总生物量逐渐增大,而枝根数、单株根重和地上重逐渐减小;稀植枝根多,地上部与地下部均生长良好,单株干物质积累多,但单位面积产量低。[结论]适宜的平作种植密度单位面积产量高,单株品质好,试验水平下,行距25～35cm时黄芩产量高、综合性状好。

Effects of Flat planting Density on the Growth Characteristics and Yields of Scutellaria baicalensis Georgi

[Objective] The effects of flat planting density on the growth characteristics and yields of Scutellaria baicalensis Georgi were studied.[Method] Four treatments of planting density were adopted in the experiment,then the growth index and total biomass in Scutellaria baicalensis Georgi were determined.[Result] The results showed that the roots,overgrond biomass and total biomass per unit area were enhanced,but branch roots,roots and overground biomass per plant were decreased as the planting density increased;The branch roots were more in rare-planting;the rare-planting could promote the growth of shoots and roots,higher dry matter per plant,but lower yield per unit area.[Conclusion] The suitable planting density was good for the appearance quality and the higher yield per unit area.On the trial level,when the array pitch was from 25 cm to 35 cm,the yield of Scutellaria baicalensis Georgi was high and the comprehensive characters was good.