EFFECTS OF VARIETY AND FERTILIZER RATES ON THE STEM AND ROOT DEVELOPMENT OF CASSAVA (Manihot esculenta) IN BALI AREA

Abstract

This research was carried out in the teaching and research farm of the School of Agricultural Technology, Federal Polytechnic, Bali to determine the effects of variety and fertilizer rates on the development of stem and tuber of cassava in Bali area. A complete Randomized Block Design (CRBD) was adopted and replicated three times. A zig-zag sampling method with 25% representative samples were used for data collections. Parameters assessed include Plant height at 3, 6 and 9 months after planting (MAP); stem girth, number of branches, number of tubers per plant, tuber length, thickness of the tuber and tuber weight at harvest. Data collected were subjected to Analysis of Variance (ANOVA) with the help of SPSS statistical package. Mean were separated using Tukey Honestly Significant Difference (HSD). The results showed significant differences among the two cassava varieties and the local cultivar and significant interactions between the two factors.