地膜覆盖对不同类型多子芋生长及产量的影响

Effect of Plastic Mulching on Growth and Yields of Different Types of Taro with Numerous Cormels

开展了地膜覆盖对不同类型多子芋生长及产量的影响研究。试验结果表明,地膜覆盖栽培显著加快芋的生长;显著或极显著地提高单株芋球茎的质量、数量和产量,且球茎质量提高的比率高于球茎数量,熟性越晚,提高的幅度越大;地膜覆盖栽培使芋的芋形指数变大,但一般未达到显著差异水平。另外,地膜覆盖栽培使芋的干物质和淀粉含量下降。

Study on the effect of plastic mulching on the growth and yield of different types of taro with numerous cor^nels was done. The results indicated that, plastic mulching accelerated taro growing significantly and increased taro quality, grweight and cormelnumbers of per plant significantly or very significantly, and the increasing rate of cormel ＂weightwas higher than that of cormel number. The later the maturity was, the higher the increasing range was. Plastic mulching made taro shape index bigger with no level of significance generally. Moreover, plastic mulching made dry matter and starch content of taro declined.