The use of antagonist microorganisms against pathogenic organisms in organic agricultural systems was promising for biological control approach. The aim of this study was to determination of the potential biological control of some fungal isolates which characterized as endophytic and antagonistic against soil borne Fusarium culmorum (FC) and F. oxysporum f.sp. radicis lycopersici (FORL) pathogens. For this, seven isolates of endophytic Acremonium spp. that isolated from healthy wheat plants and eight isolates of antagonist Trichoderma spp., isolated from soil of organic vegetable areas, were performed as biological control agents (BCA). The agar media with hypha and mycelia of the BCAs and spore suspensions (106 spores/ml) of FC and FORL were treated for inoculation of wheat seeds and tomato seedlings. The harvested plants were statistically analyzed by some parameters (severity of crown rot disease (%DS and scale), plant lengths (cm) etc.). In conclusion, the Acremonium isolates (47.5%) were lower means of disease severity than Trichoderma isolates (74.6%) for FC and FORL assessments in wheat experiment. In tomato, the averages of disease severity between Acremonium and Trichoderma were similar while their means were lower than positive control (The Scale of DS=0.67

In the face of bean (Phaseolus vulgaris L.) crops with low grain yield in Brazil, specifically in the state of Parana-Brazil, this research aimed to evaluate the agronomical performance of different genotypes grown in the second-season under high and low technology management. The experimental design was a randomized block design with three replications in a 3x13x2 triple factorial arrangement, where Factor A was composed of three years of cultivation (second-season 12/13, 13/14 and 14/15), Factor B consisted of 13 bean cultivars (BRS Campeiro; BRS Esplendor; IPR Gralha; IPR Tuiuiú; IPR Uirapuru; BRS Ametista; BRS Estilo; BRS Notável; BRS Pérola; IPR 81; IPR Campos Gerais; IPR Curió and IPR Tangará) and Factor C consisted of 2 levels of technological management (high and low technology). The use of high-technology management resulted in higher grain yield, statistically different from the low-technology management in the second-season 12/13, 13/14 and 14/15 and from the overall mean of the three years of cultivation. Thus, greater investment in technology increases the probability of increasing in economic profitability of the producer due to the growth in bean crop productivity. The cultivar BRS Pérola exhibited grain yield values statistically higher than cultivars IPR Tuiuiú, IPR Gralha, IPR Campos Gerais, IPR Tangará, IPR Uirapuru, IPR 81 and IPR Curió, proving to be a good choice to achieve high productivity. | Diante das baixas produtividades de grãos da cultura do feijão no Brasil e no estado do Paraná, objetivou-se neste trabalho avaliar o desempenho agronômico de diferentes genótipos de feijão cultivados na safrinha em alto e baixo manejo tecnológico. O delineamento experimental foi em blocos ao acaso com três repetições em esquema fatorial triplo do tipo 3x13x2, em que o Fator A foi constituído por 3 anos de cultivo (safrinha 12/13; 13/14 e 14/15), o Fator B composto por 13 cultivares de feijão (BRS Campeiro; BRS Esplendor; IPR Gralha; IPR Tuiuiú; IPR Uirapuru; BRS Ametista; BRS Estilo; BRS Notável; BRS Pérola; IPR 81; IPR Campos Gerais; IPR Curió e IPR Tangará) e o Fator C constituído por 2 níveis de manejo tecnológico (alta e baixa tecnologia). O manejo de alta tecnologia resultou em produtividade de grãos superior e estatisticamente diferente do manejo de baixa tecnologia na safrinha 12/13, 13/14 e 14/15 e na média geral dos três anos de cultivo. A produtividade de grãos na safrinha 14/15 foi superior e estatisticamente diferente da safrinha 12/13 e 13/14 em ambos os manejos e na média de cada ano. A cultivar BRS Pérola apresentou produtividade de grãos superior estatisticamente das cultivares IPR Tuiuiú, IPR Gralha, IPR Campos Gerais, IPR Tangará, IPR Uirapuru, IPR 81 e IPR Curió. Entre as cultivares avaliadas a IPR Curió apresentou a menor produtividade de grãos.