Growth, Yield and Starch Content of Cassava Following Rainfed Lowland Rice in Northeast Thailand

摘要

The objectives of this study were to investigate growth, yield, starch content and economic return of cassava cultivars grown following rice. Five cassava cultivars including Rayong-7, Rayong-11, Rayong-72, Kasetsart-50 and Huaybong-80 were tested in randomized complete block design with 4 replications. The results showed that at 6 months after growing. Rayong-11 gave the highest of leaf area index as well as leaves and stems dry weight. Rayong-7 produced the maximum fresh tuber roots yield, while Rayong-72 gave the highest dry roots yield. The starch content was not significantly affected by cassava cultivars. Kasetsart-50 tended to give the highest starch content. Cassava grown following rice as a bonus crop provided net income over materials cost 1,163-1,810 US dollars ha-1, depending on the cultivar.