江西红壤旱地木薯农艺性状与产量的关系初步研究

为筛选出更适宜江西省种植的木薯高产品种，以19个品种（或品系）为材料，对不同品种间产量差异及其与农艺性状的关系进行研究。结果表明，5个品种的鲜薯产量高于37.5 t/hm2，6个品种的鲜薯产量介于30~37.5 t/hm2之间，4个品种的鲜薯产量介于22.5~30 t/hm2，其他4个品种的鲜薯产量低于22.5 t/hm2。19个木薯品种中有7个品种的鲜薯产量高于对照品种SC205，其中SC8和GR024-2的鲜薯产量和淀粉含量均表现较高。木薯的生物产量、收获指数、最粗薯粗与鲜薯产量呈极显著正相关，鲜薯干物率与鲜薯产量呈极显著负相关，而单株薯数、鲜薯淀粉含量、株高、茎粗、最长薯长与鲜薯产量相关不显著。

Preliminary Study on the Relationship of Cassava Agronomic Characters with Yield in Red Soils Upland of Jiangxi Province

In order to select high-yielding varieties for planting in Jiangxi Province,with 19 cassava varieties or strains as materials,an experiment had study on the difference among the yield and its relationship with cassava shape characteristic.The results showed that:fresh root yield of five varieties was more than 37.5 t/hm 2,that of six varieties was between 30 to 37.5 t/hm 2,that of four varieties was between 22.5 to 30 t/hm 2 and that of four varieties was less than 22.5 t/hm 2.Among 19 cassava varieties,the...