Qualidade das sementes de feijão e milho tratados com extratos de origem vegetal durante o armazenamento.

Abstract

The objective of this work to study the quality of four varieties of beans vigna (Vigna unguiculaia L. Walp) and four maize (Zea mays L.) treated with extracts of orange, pepper and phosphine, initially characterized as the physical purity, moisture, germination, vigor and development of pests insect in storage for ten months; after treatment were stored in PET packaging type in uncontrolled environment of temperature and relative humidity. Every two months, until the tenth month the analysis of moisture, infestation, germination and vigor were repeated. The design was completely randomized with treatments arranged in a factoring scheme, whose the quantitative factors were revealed by the regression analysis of variance. From the results obtained, it was concluded that the natural extracts used in the treatment of vigna bean seeds were efficient in maintaining the viability and infestation by pests insect of the same during the ten months of storage, end hydroalcoholic extract of orange was more efficient in maintaining the viability of the seeds front the seeds treated with pepper. For maize seed was physiological quality maintained and infestation by pests insect in storage, reducing the efficiency of the extracts insofar as it reduced the concentration of the same and that the extract used undiluted (100%) was the most efficient.