Efficiency of the inoculation of Trichoderma asperellum UFT-201 in cowpea production components under growth conditions in field

Abstract

A B S T R A C TThe rhizosphere contains many microorganisms that can promote plant growth and protect the root system against infection by pathogens. Fungi of Trichoderma sp. are included in this group. The aim of this study was to evaluate efficiency of the inoculation of Trichoderma in agronomic performance of cowpea under field conditions, in the savanna in Gurupi, Tocantins, in harvests 2013/2014 to 2014/2015. The treatments consisted in seed treatment, with and without inoculation with Trichoderma asperellum UFT 201 with minimum concentration of viable conidia of 2x10 9 L -1 , at a dose of 20 g kg -1 of seed. Biomass evaluations were made on efficiency, initial and final stands and survival in the use of Trichoderma in the stand maintaining and productivity. The results indicated that the ability of bio-protection and plant growth promotion were of great importance for the biomass production, the stand maintaining and cowpea productivity. In both harvests, survival was superior in the plants treated with Trichoderma, 23.0 and 13.2%, respectively, and yields were 9.5% higher compared to control for the two harvests. In general, the inoculation of Trichoderma provided the best results in the biomass variables analyzed for the two crops with higher productivity.Keywords: biomass, productivity, Trichoderma, Vigna unguiculata. R E S U M OA rizosfera contém muitos microorganismos que podem promover o crescimento vegetal e proteger o sistema radicular de infeções por agentes patogénicos. Neste grupo incluem-se fungos de Trichoderma sp. O objetivo deste estudo foi avaliar a eficiência da inoculação de Trichoderma na performance agronómica de feijão-frade em condições de campo, na savana em Gurupi, Tocantins, nas campanhas de 2013/2014 a 2014/2015. Os tratamentos consistiram sementes inoculadas (ou não) com Trichoderma asperellum UFT 201 com uma concentração de conídios viáveis mínima de 2x10 9 L -1 , numa dose de 20 g kg -1 de semente. Foram efetuadas avaliações de biomassa em termos de eficiência, populações iniciais e finais e sobrevivência de Trichoderma, e na manutenção e produtividade da cultura. Os resultados indicam que a capacidade de bioproteção e promoção do crescimento vegetal foram de grande importância para a produção de biomassa, a manutenção da cultura e a produtividade de feijão-frade. E mambas as campanhas a sobrevivência foi superior nas plantas tratadas comTrichoderma, 23,0 e 13,2% respetivamente, e as produtividades foram 9,5% superiores ao controlo em ambas as campanhas. Em termos globais, a inoculação com Trichoderma providenciou os melhores resultados nas diversas variáveis ilustradoras de biomasse para as duas campanhas, conduzindo a uma maior produtividade.

Trichoderma asperellum (UFT201) functions as a growth promoter for soybean plant

“…Other research has demonstrated that seeds treated with Trichoderma have played an important role in increasing plant biomass, such as in soybean (Chagas et al, 2017a;Gonçalves et al, 2018), cowpea (Chagas et al, 2016) and rice (Chagas et al, 2017b).…”

“…Significant results in increased plant biomass have been reported in crops such as soybean (Chagas et al, 2017a) and cowpea bean (Chagas et al, 2016) with the use of Trichoderma spp. found in various formulated products as the basis of this fungus on the world market (Woo et al, 2014).…”

Soybean productivity with Trichoderma asperellum seed treatment in different regions of the Brazilian Cerrado

“…These effects of Trichoderma as a vegetable growth promoter have also been reported for other crops, as for example, it has been reported that the treatment of rice, wheat and tomato seeds with Trichoderma increases the photosynthetic rate, the weight of the plants, the length of their roots and shoots and the number of leaves and leaf area (Domínguez et al, 2016), as well as in the biomass increment of maize (Chagas et al, 2017b), tomato (Rubio et al, 2017), papaya (Chagas Junior et al, 2020), rice (Chagas et al, 2017a,b;Silva et al, 2019) and cowpea Chagas et al, 2016).…”

Efficiency of Trichoderma asperellum UFT 201 as plant growth promoter in soybean

“…Filamentous fungi of the genus Trichoderma have been the most commonly studied microorganisms as biological control agents of plant diseases and they also have activity as plant growth promoters (Santos et al, 2010;Machado et al, 2011). The influence of Trichoderma species on plant development is broad, which includes beneficial effects on seed germination, seedling emergence, grain growth and yield (Chagas et al, 2016). Kapri and Tewari (2010) highlighted the potential of phosphate solubilization by Trichoderma spp.…”