Trocas gasosas e componentes do rendimento de milho consorciado com fava no brejo paraibano

Abstract

Corn cultivation and consumption in the northeastern region of Brazil is of high socioeconomic importance, however, it does not reflect what is expected of productive results for commercial cultivation of such species. Intercropping between species can be a solution to increase the productivity of maize and at the same time provide a use of the cultivation area and with this, it is important to use the fava bean that is popularly consumed in the state and which is marketed at fairs. free as a delicacy. The objective of this study was to analyze the effect of gas exchange and the performance of corn yield components intercropped with bean at different sowing dates. The present work was developed in the experimental farm Chã de Jardim, belonging to the Center of Agrarian Sciences - CCA, Campus II, Federal University of Paraíba - UFPB, located in Areia-PB. The experiment was conducted in randomized blocks (DBC) with four replications and five treatments. The data obtained were submitted to analysis of variance (F Test), with statistical program R, and they were submitted to Tukey test at 5% probability. It was observed that there was no significant difference between the analyzed variables, photosynthetic rate, stomatal conductance and perspiration. The results obtained by this work indicate to the producer the viability of the intercropping between the corn and bean crops, where the sowing dates between the rows of corn express positive results for treatments 4 and 5, where the cultivation occurred between maize development stages V3 and V5 respectively. With this, it is indicated that the producer performs the intercropping cultivation between these times which will probably result in productive results.