首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Production of potato minitubers by repeated harvesting: Effects of crop husbandry on yield parameters
Authors:W J M Lommen  P C Struik
Institution:(1) Department of Field Crops and Grassland Science, Wageningen Agricultural University, Haarweg 333, 6709 RZ Wageningen, the Netherlands
Abstract:Summary Minitubers can be produced in large quantities by repeated harvesting of tubers from in vitro propagated plantlets at 4, 7 and 10 weeks after transplanting to the glasshouse at high plant densities. Yield parameters of minitubers can be manipulated by crop husbandry. By supplying nutrients or using a square plant arrangement, minituber yield increased. Effects on numbers of tubers were cultivar-dependent. Changing plant density from 50 to 800 plants per m2 or the minimal diameter of harvested tubers from 5 to 12 mm did not significantly affect tuber yield per m2. Higher plant densities resulted in more tubers per m2 but fewer tubers per plant. Removing smaller tubers greatly increased the number of small tubers, but did not affect yield and number of tubers in larger grades. Crop husbandry techniques affected minituber yield mainly through their effects on leaf area duration, and the number of minitubers through their effects on growth of tubers to a harvestable size.
Keywords:Solanum tuberosum L    seed production  rapid multiplication  tuber pruning  non-destructive harvest  nutrient supply  plant density  plant arrangement
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号