IMPLICATIONS OF FUNGI ASSOCIATED WITH SEEDS OF SOYBEAN VARIETY BRS VALUABLE RR

Abstract

ABSTRACT: The use of good quality seeds to plant health is a factor of considerable importance for the establishment of the crop, since the seed is directly associated with the transmission of pathogens in culture. The present work is aimed to identify the fungi associated with seeds of transgenic soybean variety BRS Valuable RR. Health Analysis was conducted at the Laboratory of Phytopathology, Centre for Advanced Studies at the University of Imperatriz, Maranhão State, using the “blotter test” in accordance with the Rules for Seed Testing, Ministry of Agriculture.  The seeds were incubated in photoperiod for seven days, with an incidence of whitefluorescent light at an interval of 12 hours light and 12 hours of darkness at a temperature of approximately 26 ± 5 0C for seven days. After this period the seedswere examined individually under a stereomicroscope and optical and results were expressed as a percentage incidence of fungi. We identified five genera of fungi: Aspergillus flavus, Aspergillus niger, Rizopus sp., Colletotrichum truncatum, Fusarium emitectum, Penicillium sp. This may affect the development of seedlings in the field.   KEY-WORDS: pathogens, quality, sanity.