砧木播种密度对西瓜断根嫁接苗生长的影响  

Effects of Rootstock Sowing Density on the Growth of Grafted Water-melon Seedlings

作　　者：华斌[1] 黄远[1] 别之龙[2] 

机构地区：[1]华中农业大学园艺林学学院.园艺植物生物学教育部重点实验室,武汉430070 [2]华中农业大学园艺林学学院.园艺植物生物学教育部重点实验,室武汉430070

出　　处：《中国瓜菜》2011年第2期32-34,共3页China Cucurbits And Vegetables

基　　金：国家科技支撑计划(2006BAD11A10);国家西甜瓜产业技术体系项目(nycytx-36-01-02-05)

摘　　要：为了确定生产中西瓜断根嫁接苗砧木最佳播种密度,采用50孔塑料穴盘,研究了砧木不同播种密度(每穴1粒、每穴2粒、每穴3粒)对砧木苗和西瓜断根嫁接苗生长的影响。结果表明,砧木每穴播种1粒,砧木苗和西瓜断根嫁接苗质量最高;随着播种密度的增加,砧木苗徒长,西瓜断根嫁接苗质量下降。综合考虑嫁接苗质量和育苗成本,认为对50孔穴盘而言,低温时期西瓜断根嫁接苗生产中最经济有效的砧木播种密度为每穴2粒,正常温度时期砧木播种密度以每穴1粒为宜。Different sowing densities（1 seed per cell,2 seeds per cell,3 seeds per cell）of rootstock were tested using 50 cell plug tray to determine optimal sowing density of rootstock for root pruning hole insertion watermelon grafting method.The growth of both rootstock and grafted watermelon seedling was used as responses to the treatment.The results showed that rootstock seedlings and grafted seedlings had the best quality when the sowing density is 1 seed per cell.The increase in sowing density resulted in excessive growth of rootstock seedlings and declined quality of grafted watermelon seedlings.Conside-ring the seedling quality and production cost the most economical and effective sowing density of rootstock for 50 cell plug tray for the production of root pruning hole insertion grafted watermelon seedlings is 2 seeds per cell in the low temperature period and 1 seed per cell in normal temperature period.

关 键 词：西瓜 砧木 断根嫁接 播种密度 

分 类 号：S651[农业科学—果树学]