相同种薯播量不同种薯切块重量和密度组合对植株和块茎性状的影响  

Effects of Various Combinations of Seed Piece Weight and In-row Spacing on Plant and Tuber Traits Planting Using Equal Quantity of Seed

作　　者：雷雪萍[1] 李勇[2] 白雅梅[3] 吕文河[1] 

机构地区：[1]东北农业大学农学院,黑龙江哈尔滨150030 [2]黑龙江省农业科学院植物脱毒苗木研究所,黑龙江哈尔滨150086 [3]东北农业大学资源与环境学院,黑龙江哈尔滨150030

出　　处：《中国马铃薯》2016年第6期336-340,共5页Chinese Potato Journal

基　　金：国家科技支撑计划课题(2012BAD06B02)

摘　　要：在马铃薯生产中,种薯切块大小和株距是要考虑的重要因素。以马铃薯品种‘荷兰15号’为试验材料,研究大垄(90 cm)条件下相同播种量(148 kg/667m^2)不同种薯切块大小和株距对马铃薯植株及产量性状的影响。试验设3个处理组合:种薯切块30 g,株距15 cm;种薯切块50 g,株距25 cm;种薯切块70 g,株距35 cm。试验采用随机区组设计,3次重复。在相同播种量条件下,大薯块长出的植株高大粗壮,但单位面积主茎数则以小薯块的稍多,至于叶面积指数以中薯块的为大。无论是总产还是商品薯产量播种量相同3个处理间差异不大。Seed piece weight and in-row spacing are important factors to be considered in potato production. The purpose of this research was to understand the influence of various combinations of seed piece weight and in-row spacing on plant and tuber traits planting in a large ridged row （90 cm） using equal quantity of seeds of potato variety ＇Helan 15＇. Three treatment combinations were tested： seed piece 30 g, in-row spacing 15 cm; seed piece 50 g, in-row spacing 25 cm; and seed piece 70 g, in-row spacing 35 cm. The experiment was grown in a randomized complete block design with three replications. At the same seeding rate, plant height was high and stem diameter was big of plant grown from large seed piece, but stem number in unit area was slightly high when small pieces were planted. As for leaf area index, it was large for medium-sized seed piece. No significant difference was found in both total and marketable tuber yields for the three treatment combinations tested.

关 键 词：马铃薯 播种量 种薯切块大小 株距 植株性状 产量 

分 类 号：S532[农业科学—作物学]