Qualidade fisiológica de sementes de feijão tratadas com zinco

Abstract

The bean (Phaseolus vulgaris L.) is a legume of great socioeconomic importance, being the main source of nutrients for human food, very important for a good functioning of the organism. Culture widespread throughout the national territory, encompasses both large and small properties, assisting at all levels of the economy. This work has as justification, a possible improvement in the quality of the seeds with the application of the micronutrient zinc, with consequent improvement in the production in the field and greater resistance to external factors. The objective of this work is to evaluate the germination of the culture, through the initial evaluation of seedlings, and to analyze and make possible the technique of osmotic conditioning with the micronutrient in question, promoting a greater structuring of cell membranes. The experiment was carried out in the UTFPR seed laboratory – Câmpus Pato Branco, in which seeds of the ANFc 9 variety were used, 4 batches of bean seeds were analyzed with 4 repetitions with a completely randomized design (DIC), where the following evaluations were made: Evaluation of Osmotic Potential; Accelerated Aging Test; Germination test; IVG and VG; and Electrical Conductivity. Subsequently, the data obtained were subjected to analysis of variance (ANOVA) at 5% probability of error, and when verified significance, these were subjected to polynomial regression analysis. The treatment of seed osmocondicionadas with zinc, increases their electrical conductivity, affirming a better integrity of the membranes, less deterioration of the seeds and greater vigor. For germination tests, IVG and VG high doses of zinc negatively affect seed development, reducing seed emergence.