双行种茎的平插配置方式对木薯产量及产量构成因素的影响  

Effects of Twin-rows Configuration of Horizontal Stake on Yield and Yield Components of Cassava Variety SC11

作　　者：肖鑫辉[1] 黄洁[1] 许瑞丽[1] 周建国[1] 陈霆[1] 林立铭 

机构地区：[1]中国热带农业科学院热带作物品种资源研究所,农业部木薯种质资源保护与利用重点实验室,海南儋州571737

出　　处：《云南农业大学学报（自然科学版）》2015年第4期575-581,共7页Journal of Yunnan Agricultural University:Natural Science

基　　金：国家现代木薯产业技术体系栽培管理岗基金(CARS-12-hnhj)

摘　　要：为探讨大畦双行木薯种茎平插种植的最佳配置方式,以‘华南11号’木薯为试验材料,采用2种株位即种茎相对或交错位置,3种茎向即种茎插入方向为正对向(种茎与畦边成90°)、斜顺向(同向45°)、斜反向(一侧45°,另一侧135°),共6个处理组合,研究对木薯产量及产量构成因素的影响。结果表明:比较鲜薯、薯干、淀粉的理论产量作用力,表现为株位>株位×茎向>茎向;比较2种株位的木薯单株结薯数、单株鲜薯重、鲜薯产量、薯干产量、淀粉产量,交错优于相对;比较3种茎向的鲜薯产量、薯干产量和淀粉产量,表现为斜顺向>正对向>斜反向,顺向优于反向;比较6个处理的鲜薯产量、薯干产量和淀粉产量,均没有显著差异,以交错斜顺向最高,分别比对照(相对正对向)增产11.9%,10.6%,9.5%,交错正对向次之,分别比对照增产8.3%,7.9%,7.5%。建议在双行平插种植木薯时,采用交错斜顺向和交错正对向方式。The purpose was to find out the best twin-rows configuration of horizontal cassava planting stake by using the cassava variety of （ ＇South China 11 ＇ ） SC11. Six kinds of configurations treatment were combined by two factors, one factor was stake position （SP） ： opposite and interlace, the other factor was insert direction （ID） ： face-to-face （90° between stake and ridge） , same inclined （45 o be- tween stake and ridge）, opposite inclined （45° and 135° between stake and ridge）. The results showed that the affecting force among fresh root yield （FRY）, dry root yield （DRY） and starch yield （SY） was SP 〉 SP x ID 〉 ID ; comparing the root number per plant, root weight per plant, FRY, DRY and SY, the SP rank was interlace 〉 opposite; comparing the FRY, DRY and SY, the ID rank was same inclined 〉 face-to-face 〉 opposite inclined; comparing the six treatments of SP and ID in- teraction, there were no significant differences in the FRY, DRY and SY, the best treatment was cornbined interlace and same inclined together, which were 11.9% FRY, 10. 6% DRY, 9. 5% SY higher than CK （combined of opposite and face-to-face） respectively, the better treatment was combined in- terlace and face-to-face together, which were 8.3% FRY, 7. 9% DRY, 7.5% SY higher than CK re- spectively. Finally, we recommend two treatments of interlace and same inclined, interlace and face- to-face for twin-rows horizontal planting cassava.

关 键 词：木薯 产量构成因素 平插 交错 双行 配置方式 

分 类 号：S533.047[农业科学—作物学]