甜菜单粒种发芽率低原因及提高措施初探  

Reasons of LOW Germination Rate of Monogerm Sugar Beet Seed and Preliminary Approach on the Improving Measures

作　　者：王克荣[1] 

机构地区：[1]东北农业大学

出　　处：《中国甜菜》1994年第2期16-19,共4页

摘　　要：甜菜单粒种发芽率低的主要原因为种株叶丛形成期短，“源”器管形成弱，影响“库”器官的数量和质量造成的，通过根外追施锌肥和硼肥，再配合氮、磷、钾做种肥，提高了营养水平，协调了“源”与“库”的关系，主要生物学性状得到改善，使甜菜单粒种发芽率提高了９．１％～１０．４％。The reasons of low germination rate of monogerm sugarbeet seed were due to the leafrpsette formation stage too short,and forrmation of source orpan become weaken,all sink or-gan affected by quantity and quality.Zn and B fertilizer ap plied by top dressing and plusN、P、K as seed manure,that plane of nutrition could be improved and accordant the rela-tion between the source and sink,majou biological characters have improved also,that thegermination rate of monogerm seed have increased by 9.1%～10.4%.

关 键 词：甜菜 单粒种 发芽率 生物学性状 

分 类 号：S566.301[农业科学—作物学]