EVALUATION OF ROOT QUALITY AND SURVIVAL RATE OF DIFFERENT VARIETIES OF TABLE CASSAVA

Abstract

ABSTRACT: The table cassava is a product with great economic potential, high nutritional value, and quality raw material for several subproducts, reasons why the consumption of the said root has expanded to other regions in Brazil, covering margins beyond the Amazon area. The goals for this assignment were to evaluate root quality parameters and survival rate of seven table cassava varieties under soil and climatic conditions of the State of Pará. The experiment was carried out in a rural property in the community of Mojuí dos Pereiras, Mojuí dos Campos City. The experimental design was a randomized block design, with three replications. The following parameters were evaluated: peel and pulp contents, and difficulty in the removal of the root breasts. It was also evaluated the survival rate of plants after 14 months since planting. For the pulp and bark contents parameter, the varieties didn’t differ statistically among themselves. As for the difficulty in the removal of the root breasts, they presented medium degree, with only the Máximo and Tabocal II varieties easy to peel. For the survival rate, the Roxa do Curudi variety presented the highest value, while the variety Tabocal II the smallest, differing statistically from each other. The Maximo variety showed to be more efficient as to the quality of roots. The Roxa do Curudi variety presented the best survival rate, showing greater adaptation to the environmental conditions of the State of Pará. KEYWORDS: Knot Retraction, Pulp contents, Roots.