春马铃薯种薯大小对其植株性状及产量的影响研究  

Sfudies on effect of plant characters and yield in seed tubec size of spring sowing potato

作　　者：张兴端 涂文志 何清 

机构地区：[1]四川省万县市农科所,万县市634006

出　　处：《种子》1994年第2期9-11,13,共4页Seed

基　　金：四川省农牧厅资助

摘　　要：该文选用经过翻秋的小整薯作种进行春播试验，探讨了不同大小种薯对植株性状和产量的影响及其经济效益。结果表明，从植株性状和产量上看，每窝种薯数在1～4范围内，随着种薯数的增加，每窝基本茎数增加，出苗后第30天冠层覆盖度增加，株高降低，茎粗变细，结薯数增加，块茎产量变化不大，单个块茎重减少，大中薯数变化不多，大中薯重下降，大中著数率和大中薯重率降低，其中每窝种薯数与基本茎数、出苗后第30天的冠覆度、株高、茎粗、结薯数、单块茎重、大中薯数率、大中薯重率之间呈显著或极显著相关；从经济效益上看，种薯数为2～4处理比对照每公顷增加收入180～1200元。This paper studied on effect of different seed tubers size on plant characters, tuber yield and economic effect of spring sowing potato using seed tubers sown in fall season. The results showed the plant stems and the canopy cover of after seedlings emereenced 30 days to be increased, plant hight and stem diameter decreased, tuber yield and bigand middle tuber numbers varied a little, weight per tuber, big and middle tuber weight, percentage of big and middle tuber numbers and weight decreased with increasing seed tuber numbers in the range of 1 to 4 per pif. lt was significant or very significant corre lationbetween Seed tuber numbers to plant stems, canopy cover of after seedlings emergenced 30 days, plant hight, stem diameter, tuber numbers, weght per tuber, percentage of big and middle tuber numbers and weight per pit. The economic effect of using 2 to 4 seed tubers per pit were 180 to 1200 Yuan/ha higher than using onr seed tuber per pit.

关 键 词：春马铃薯 小种薯 植株性状 产量 

分 类 号：S532.032[农业科学—作物学]