Produtividade de diferentes partes da rama utilizadas na propagação da cultura da mandioca

Abstract

Manihot (Manihot esculenta Crantz) is one of the most cultivated vegetables in the world, especially in the tropics; Brazil is one of the main producers. The roots of cassava used for different purposes: human consumption, in the industry are produced the most diverse derivatives and for animal feed. The cassava branch presents different constitution according to its formation, being that the basal part presents greater number of buds and accumulation of hormones and nutrients. The adoption of the planting different parts of cassava branch, aims to differentiate in which part of the branch will have better agronomic results, being that in the evaluated parts, they present a different amount of nodules, weight that impacts the development of the plants and thickness after harvest the percentage of starch (income), productivity and net income (R$). In the current planting system, the producers do not distinguish the parts of the branches, this happens in a random way, with that, it´s impossible to have parameters of which part is the one that better performance. The research it´s conducted in the Biotec, ranch of the University Center of Maringá - Unicesumar between the years 2016 and 2017. The experimental design was completely randomized, presenting three replicates of four varieties: Baianinha, IPR União, IPR 10032 and IPR 508 / 08. The average were compared by the Scott Knott test at 5%. The base of the branch and the IPR União variety obtained better results when compared to the others.