Método Meiosi: potencial taxa de multiplicação em reformas de canaviais

Abstract

The system popularly known as MEIOSIS appeared in mid-1983 in order to reduce costs for sugarcane fields recovery, using two lines of cane that were deployed to its sides. Nowadays, the MEIOSIS system (simultaneous inter-rotational method) started to become common again in the sugar and alcohol industry with certain modifications that provided great advantages for sugarcane producers. Thus, this work has as priority the analysis of the multiplication of seven varieties of sugarcane, to verify which variety is best adapted to the system, considering the edaphoclimatic conditions of the region of Maringá-PR. The area for the experiment has 800m², divided into 7 plots containing, in each plot, a rotating variety with soybean and “crotalaria” (secondary crops used for crop rotation). In calculations to find the multiplication rate, a sample obtained in one meter of the line of the varieties of each sugarcane plot was considered, obtaining the amount of tillers, the average height of all the tillers. Hence, it was possible to verify that at the end of the project the variety CTC9004 was the one that had the lowest yield a result of 1:29 and the one that had the best yield was the CTC20 that was more adapted to the climate of the region multiplying 1:50. However, it’s important to highlight that the results contributed to indicate the varieties with the best multiplication rates to be used in the MEIOSIS system in the Maringá - PR region.