Cama de aviário e solo não autoclavados são eficientes no controle do crescimento de Scytalidium lignicola, causador da podridão negra da mandioca

Bezerra, Cidney Barbosa; Medeiros, Érika Valente de; Silva, Cataliny Andreza Duarte; Notaro, Krystal de Alcantara; Negreiros, Andréia Mitsa Paiva; Júnior, Rui Sales

doi:10.1590/0100-5405/187102

Cited by 9 publications

(1 citation statement)

References 15 publications

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“…The suppression of diseases caused by soil-borne pathogens is closely intertwined with enzyme activities. Bezerra et al (2019) showed that natural suppression of cassava black root rot has been found correlated with arylsulfatase and urease activities. Numerous researchers have observed that integrating biochar into the soil shows potential in mitigating crop diseases.…”

Section: Introductionmentioning

confidence: 99%

Impact of rice straw biochar in association with inorganic fertilizers and Trichoderma harzianum on charcoal rot (Macrophomina phaseolina) of maize

Saeed,

Abbas,

Khan

et al. 2023

World J. Biol. Biotechnol.

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Phytosanitary regulations concerning pesticide residues are among the most important problems faced by today's agricultural environment. Therefore, the purpose of this study was to produce and characterize indigenously produced biochar from raw material based on rice straw. The biochar synthesized at 480°C, was used as amendment at different volumetric concentrations (3 and 6%), along with in-organic fertilizers for restricting the development of charcoal rot (Macrophomina phaseolina), in maize (Zea mays L.) The scanning electron microscopy (SEM) analysis of rice straw biochar showed micro-cracks, rough texture, and intricately formed pores, thus showcasing the complex and porous nature of the rice straw biochar resulting from the pyrolysis process. The energy dispersive X-ray spectroscopy (EDX) analysis confirmed its carbonaceous composition (approximately 54%), with the presence of functional groups like hydroxyl and carboxyl, as well as trace amounts of potassium, calcium, and silicon. Maize grown in soil amended with 6% biochar showed significant reduction in shoot and root weights (51.72 and 74.11%, respectively) when compared to 3% biochar amended soil in the presence of M. phaseolina. Our results revealed that 3% rice straw biochar and Trichoderma harzianum proved most effective for the management of charcoal rot as indicated by lowest disease incidence and disease severity (40%, each). Maize showed variable degrees of defense mechanisms activation in response to soil biochar amendments. Biochar application rate of 6% did generally not improve the maize dry biomass production and tolerance to charcoal rot. These findings will surely help us understand biochar-induced changes in physiology of maize and possible activation of defense response against M. phaseolina

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Section: Introductionmentioning

confidence: 99%

Impact of rice straw biochar in association with inorganic fertilizers and Trichoderma harzianum on charcoal rot (Macrophomina phaseolina) of maize

Saeed,

Abbas,

Khan

et al. 2023

World J. Biol. Biotechnol.

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Otimização Do Crescimento Vegetativo E Produtividade Da Mandioca Por Meio De Bioestimulante E Métodos De Cultivo

Chavans Paolino,

Martins Rezende,

Cordeiro Malenowtch

et al. 2023

NAT

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A intensificação da produção, vem instigando o desenvolvimento de novas tecnologias. O presente trabalho teve como objetivo avaliar a resposta no desenvolvimento vegetativo e produtivo da mandioca, frente a métodos de cultivos e aplicação de hormônios vegetais. Foram conduzidos dois experimentos a campo com a cultura da mandioca de mesa. (a) Primeiro experimento - 4 doses de biorregulador vegetal Stimulate® (0, 0,5, 1 e 1,5 L ha-1 do produto comercial) aplicadas via sulco de plantio sobre as manivas da variedade branca; e dois modos de preparo de solo, sendo um, subsolagem e gradagem e o outro sem preparo do solo. (b) Segundo experimento - 4 doses de biorregulador vegetal Stimulate® (0, 0,25, 0,5 e 1,0 L ha-1 do produto comercial); e dois modos de aplicação, sendo o primeiro via sulco de plantio sobre as manivas da variedade amarela, e o segundo via foliar aos 90 dias após o plantio (DAP). O plantio da mandioca sem o revolvimento do solo, indicam superioridade na quantidade, comprimento e produtividade de raízes, além de maior peso da parte aérea. A utilização de doses de bioestimulante, possibilitou maior desenvolvimento vegetativo em altura, diâmetro e peso da parte aérea, além de maior comprimento de raízes. Palavras-chave: manihot esculenta; hormônios vegetais; preparo solo. Optimization of vegetative growth and sweet cassava yield through biostimulant and cultivation methods ABSTRACT: The intensification of production in the same area has instigated the development of new technologies. The present work aimed to evaluate the response in the vegetative and productive development of sweet cassava, compared to cultivation methods and plant hormones application. Two field experiments were conducted with sweet cassava cultivation. (a) First experiment - 4 doses of plant bioregulator Stimulate® (0, 0.5, 1 and 1.5 L ha-1 of the commercial product) applied in planting furrow on the stems of the white variety; and two modes of soil preparation, one being subsoiling and harrowing and the other without soil preparation. (b) Second experiment - 4 doses of plant bioregulator Stimulate® (0, 0.25, 0.5, and 1.0 L ha-1 of the commercial product); and two modes of application, the first in planting furrows on the yellow variety stems and the second in the foliar application at 90 days after planting (DAP). Planting sweet cassava without disturbing the soil indicates superiority in the quantity, length and roots yield, and greater weight of the aerial part. The use of biostimulant doses allowed greater vegetative development in height, diameter and weight of the aerial part, in addition to greater root length. Keywords: manihot esculenta; plant hormones; soil tillage.

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Trichoderma spp antagonismo a fitopatógenos causando pudrición de raíz de yuca en alagoas

Silva¹

2020

Revista Científica Multidisciplinar Núcleo do Conhecimento

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Varios son fitopatógenos que limitan la producción de yuca (Manihot esculata Crants) siendo la podredumbre de las raíces a las que se casan con la mayor pérdida en el cultivo alcanzando el 70%. Esta cultura es de gran interés para la región noreste de Brasil, proporcionando grandes pérdidas. Las dificultades de gestión han dirigido la búsqueda de alternativas, entre las que, los biocontroladores han mostrado resultados significativos. Esta revisión de la literatura tenía como objetivo recopilar información relacionada con la podredumbre de raíz de yuca cv Rosinha, los principales fitopatógenos y actividades antagónicas de Trichoderma en el control de enfermedades en el estado de Alagoas. Se realizó una encuesta bibliográfica en las bases de datos Scielo, Google Acadêmico, portal de Capes (tesis y disertaciones), revistas y libros. Para obtener información sobre: pudrición de la raíz de la yuca de mesa, Trichoderma spp., como un agente de biocontrol de fitopatógenos.

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Cama de aviário e solo não autoclavados são eficientes no controle do crescimento de Scytalidium lignicola, causador da podridão negra da mandioca

Cited by 9 publications

References 15 publications

Impact of rice straw biochar in association with inorganic fertilizers and Trichoderma harzianum on charcoal rot (Macrophomina phaseolina) of maize

Impact of rice straw biochar in association with inorganic fertilizers and Trichoderma harzianum on charcoal rot (Macrophomina phaseolina) of maize

Otimização Do Crescimento Vegetativo E Produtividade Da Mandioca Por Meio De Bioestimulante E Métodos De Cultivo

Trichoderma spp antagonismo a fitopatógenos causando pudrición de raíz de yuca en alagoas

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