DESENVOLVIMENTO VEGETATIVO DA MANDIOCA (MANIHOT ESCULENTA CRANTZ) EM FUNÇÃO DE DIFERENTES COMPRIMENTOS DE MANIVAS-SEMENTE

Abstract

Currently the largest amount of the crop is generated by small family farmers. However, many of these farmers do not pay attention to the propagation material, using lesser quality and with no criterion of choice, as to the length of maniva used. Therefore, the present study aimed to identify the vegetative development of cassava as a function of different lengths of maniace seeds. In this way two evaluations of the vegetative development were carried out at 60 DAP (days after planting) and 120 DAP (days after planting), as a function of five seed lengths 5, 10, 15, 20 and 25 cm. The percentage of sprouting, sprouting per pit was evaluated, these two variables evaluated only at 60 DAP; height, length of branches, diameter, distance between nodes and number of branches, evaluated at 60 DAP and 120 DAP. The obtained data were submitted to analysis of variance and when necessary the test of average (Tukey to 5% of probability) and the regression analysis were done It was observed that the percentage of sprouting and sprouting per pit yielded the best averages as seedling lengths increased, plant height decreased gradually from 25 cm and the other evaluated characteristics did not suffer significant changes.