Extract of Lentinula edodes in the control of anthracnosis in bean

Abstract

The red guava (Psidium cattleyanum Sabine) is a native fruit tree that have high economic and commercial potential. The main form to propagate this specie is by use of seeds, that to do necessary to study as produce quality seedlings, with rapid and uniform germination. This study aimed to analyze the effect of temperature, stratification and substrate on germination of red guava. The study was carried out at UTFPR - Câmpus Dois Vizinhos, Paraná State, Brazil. The experimental design was completely randomized in factorial 2 x 3 x 3 (stratification x substrate x temperature), with four replications of 100 seeds. Some seeds were put to stratification during 5 days at 5°C, and other no it being to sow directly. Three substrate types, (on Germtest®, between Germtest®, and sand), three temperature conditions (20°C, 25°C and 30°C) with a photoperiod of 12 hours were tested. Sixty days after the soured, the germination percentage and the germination speed index, were evaluated. It was recommended for germination of red guava the Germtest® as substrate and environment temperature of 25°C.