种茎行向及芽向对间作木薯和花生产量及品质的影响

Yield and quality effect of different row or bud direction of cassava cutting within cassava intercropping peanut

以木薯品种华南8号和花生品种贺油12号为材料,采用木薯宽窄行间作花生法,设置木薯种茎芽眼朝向东、南、西、北共4个处理,其中芽眼朝向东和向西处理属于东西行向,芽眼朝向南和向北处理属于南北行向,研究木薯种茎行向及芽向对木薯花生间作产量和品质的影响。结果表明:南北行向处理木薯的鲜薯和淀粉产量比东西行向处理的高10.7%、10.1%,东西行向处理的花生荚果产量比南北行向处理的高8.4%;芽向处理木薯的鲜薯、淀粉产量排序均为种茎向北最高,其次为向南和向东,向西最低,向北处理木薯的鲜薯和淀粉产量比向西处理的高20.5%、19.7%;花生荚果产量排序均为种茎向西处理最高,其次为向南和向东处理,向北处理的最低,向西处理的荚果产量比向北处理的高19.3%。综合分析认为,南北行向比东西行向更利于提高木薯鲜薯产量和淀粉产量,东西行向比南北行向更利于提高花生产量,花生行北侧或西侧的木薯的鲜薯产量和淀粉量比南侧或东侧的高,木薯行南侧或西侧的花生荚果产量比北侧或东侧的高。

In order to research the effect of row or bud direction of cassava cutting on the yield and quality of cassava and peanut in intercropping, the cassava variety South China No.8 and peanut variety Heyou No.12 were used as materials in this study, 4 bud direction treatments of cassava cutting, combing with wide-narrow row cassava intercropping peanut were conducted, east and west bud directions belonged to east-west（E-W） row direction, south and north bud directions belonged to south-north（S-N） row direction. The results showed that： The fresh root yield（FRY） and starch yield（SY） of S-N row direction were 10.7% and 10.1% higher than those of E-W row direction, the peanut pod yield（PPY） of E-W row direction was 8.4% higher than that of S-N row direction. The FRY and SY of 4 bud directions ranked as： the north was the highest, followed by south and east, the west was the lowest. The FRY and SY of north bud direction were 20.5% and 19.7% higher than those of west bud direction, PPY of 4 bud directions ranked as： the west was the highest, followed by south and east, the north was the lowest. The PPY of west bud direction was 19.3% higher than that of north bud direction. North or west cassava row beside peanut row were benefit to increase FRY and SY than south or east row, south or west peanut row beside cassava row were benefit to increase PPY than north or east row.