播种密度对高温季节小白菜生长及产量的影响  

Effects of Sowing Densities on Growth and Yield of Brassica campestris ssp.chinensis var.communis Tsen et Lee in High Temperature Season

作　　者：俞丽红 汪炳良[2] YU Lihong;WANG Bingliang(Zhuji Economic Special Crops Station,Shaoxing,Zhejiang 311800;Institute of Vegetable Science,Zhejiang University)

机构地区：[1]浙江省诸暨市经济特产站,311800 [2]浙江大学蔬菜研究所

出　　处：《长江蔬菜》2022年第24期46-49,共4页Journal of Changjiang Vegetables

基　　金：浙江省农业农村厅农业重大技术协同推广项目(2021XTTGSC01-3)。

摘　　要：为筛选夏秋季节小白菜的适宜播种密度,以小白菜品种夏帝和夏绿为材料,设置60、80(CK)、100、120株/m^(2)4个播种密度,研究高温季节下播种密度对小白菜植株生长及商品产量的影响。试验结果表明,2个品种的株高和最大叶长均随播种密度的增加而提高,最大叶宽、单株叶片数和单株鲜质量随播种密度的增加而下降。夏帝播种后37 d产量以120株/m^(2)最高,但播种后49 d产量以100株/m^(2)最高;夏绿播种后37 d和49 d的产量均以100株/m^(2)最高。In order to screen out the suitable planting density of Chinese cabbage in summer and autumn,four sowing densities of 60,80(CK),100 and 120 plants/m~2 were set up with Chinese cabbage cultivars Xiadi and Xialv as materials to study the effects of sowing densities on the growth and commodity yield of Chinese cabbage in high temperature season.The results showed that with the increase of sowing density,the plant height and length of largest leaf of the two cultivars increased,while the width of largest leaf,number of leaves and single plant fresh weight decreased.For Xiadi,the yield of120 plants/m^(2) was the highest at 37 days after sowing,but the yield of 100 plants/m^(2) was the highest at 49 days after sowing.For Xialv,the yield of 100 plants/m^(2) was the highest at 37 days and 49 days after sowing.

关 键 词：小白菜 夏秋季 播种密度 生长 产量 

分 类 号：S634.3[农业科学—蔬菜学]