Comunicata Scientiae最新文献_第7页

Produção de mudas de Euterpe precatoria Mart. em resposta a diferentes dosagens de nitrogênio e potássio 欧洲苗木生产precatoria市场。对不同剂量的氮和钾的反应

Comunicata Scientiae Pub Date : 2023-08-07 DOI: 10.14295/cs.v14.4000

Angelita Gude Butzke, Rychaellen Silva de Brito, Romeu De Carvalho Andrade Neto, Aureny Maria Pereira Lunz, Sergio Da Silva Fiuza, Reginaldo Almeida Andrade

{"title":"Produção de mudas de Euterpe precatoria Mart. em resposta a diferentes dosagens de nitrogênio e potássio","authors":"Angelita Gude Butzke, Rychaellen Silva de Brito, Romeu De Carvalho Andrade Neto, Aureny Maria Pereira Lunz, Sergio Da Silva Fiuza, Reginaldo Almeida Andrade","doi":"10.14295/cs.v14.4000","DOIUrl":"https://doi.org/10.14295/cs.v14.4000","url":null,"abstract":"O sucesso para a implementação de açaizeiro solteiro em forma de monocultivo está atrelado ao cuidado referente a qualidade e sanidade da muda. Portanto, objetivou-se avaliar a influência de nitrogênio e potássio para a produção de mudas de Euterpe precatoria Mart. O experimento foi instalado em delineamento em blocos casualizados em esquema fatorial 5x5, sendo o primeiro fator as doses de nitrogênio (0, 15, 30, 45 e 60 mg dm-3 de N) e o segundo de potássio (0, 40, 80, 120 e 160 mg dm-3 de K), ambos aplicados de forma parcelada, 20, 40 e 40%. Aos 300 dias após a repicagem foram avaliados: altura da muda, diâmetro do coleto, número de folhas ativas, massa seca da raiz, da parte aérea e total e, posteriormente o índice de qualidade de Dickson. Os dados foram submetidos a análise univariada e posterior análise de regressão. Observou-se efeito significativo apenas para as dosagens de N, com resposta linear positiva para todas as variáveis analisadas. Desta forma, as doses de nitrogênio influenciam no crescimento e na qualidade de mudas de E. precatoria aos 300 dias após repicagem; a adubação potássica para mudas de E. precatoria na fase de viveiro não se mostrou responsiva para nenhuma variável; além disso, não se verificou interação entre as doses de N e K no crescimento de mudas de E. precatoria aos 300 dias após repicagem e mudas submetidas a doses crescentes de nitrogênio são responsivas, possuindo bons atributos morfológicos.","PeriodicalId":38570,"journal":{"name":"Comunicata Scientiae","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47282012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Compostos de Morinda citrifolia como indutores de respostas bioquímicas em plantas de melão. 香叶巴戟天化合物作为甜瓜生物化学反应的诱导剂。

Comunicata Scientiae Pub Date : 2023-08-07 DOI: 10.14295/cs.v14.3919

Bruna Letícias Dias, M. Dalcin, P. F. Costa, P. Santos, R. R. D. Sousa, Felipe Rocha Dias, D. D. S. C. Mourão, G. R. Santos

{"title":"Compostos de Morinda citrifolia como indutores de respostas bioquímicas em plantas de melão.","authors":"Bruna Letícias Dias, M. Dalcin, P. F. Costa, P. Santos, R. R. D. Sousa, Felipe Rocha Dias, D. D. S. C. Mourão, G. R. Santos","doi":"10.14295/cs.v14.3919","DOIUrl":"https://doi.org/10.14295/cs.v14.3919","url":null,"abstract":"As plantas apresentam mecanismos complexos de defesa estrutural e bioquímica que podem ser ativados antes ou após o ataque de microrganismos fitopatogênicos. Dentre esses mecanismos, estão as proteínas relacionadas à patogênese (PRP) e a resposta hipersensível através da produção de espécies reativas de oxigênio (ERO), as quais auxiliam na defesa contra os fitopatógenos e redução da toxicidade dos radicais livres. A ativação deste sistema pode ser por fatores bióticos ou abióticos que podem estimular a atividade bioquímica, denominadas substâncias elicitoras, como óleos essenciais e seus constituintes. Estudos na área são necessários para aprofundar conhecimento e atingir a viabilidade técnica e econômica de seu uso em benefício da agricultura sustentável. Objetivou-se avaliar a atividade enzimática de plantas de meloeiro submetidas à aplicação de óleo essencial de noni (OE) e ácido octanóico (AO). Foram testadas diferentes concentrações dos tratamentos e como testemunhas: fungicida Cerconil® (0,2%) e estimulante vegetal Yantra®. As enzimas com atividade avaliada foram superóxido dismutase (SOD), quitinase (QUIT), ascorbato peroxidase (APX) e catalase (CAT). O ácido octanóico (0,1%) e óleo essencial (0,5%) foram os maiores ativadores da SOD dentre os tratamentos testados. A APX teve sua produção aumentada pela aplicação de ácido octanóico à 0,1%. O OE foi o maior ativador da CAT na concentração de 2%. Confirmando a atividade dos metabólitos secundários de Morinda citrifolia como ativadores do sistema de defesa e provável ação imediata contra microrganismos. Considerando assim compostos potenciais para o desenvolvimento de um bioproduto como substituto de defensivos agrícolas. \u0000 \u0000Palavras-chave: bioprodutos, compostos naturais, Cucumis melo L., espécies reativas de oxigênio, óleo essencial.","PeriodicalId":38570,"journal":{"name":"Comunicata Scientiae","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41794609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Response of cucumber to target spot as a function of plant age 黄瓜对靶标点的反应与植株年龄的关系

Comunicata Scientiae Pub Date : 2023-08-07 DOI: 10.14295/cs.v14.4007

Lucas de Souza da Silva, M. C. D. Arruda, T. Dadazio, A. C. Firmino, I. Fischer

{"title":"Response of cucumber to target spot as a function of plant age","authors":"Lucas de Souza da Silva, M. C. D. Arruda, T. Dadazio, A. C. Firmino, I. Fischer","doi":"10.14295/cs.v14.4007","DOIUrl":"https://doi.org/10.14295/cs.v14.4007","url":null,"abstract":"The target spot of cucurbits, caused by Corynespora cassiicola, occurs in several cultivated species, being considered an important disease on cucumbers. The objetive was to determine the cucumber response to the target leaf spot as a function of plant age, seeking a better understanding of the pathosystem in orderto avoid economic damages to producers. Cucumber ‘Soldier’ plants were inoculated at 20, 30 and 40 days after sowing. Disease severity was evaluated at three, six and nine days after inoculation of the pathogen; thenumber of leaves and plant height at intervals of 7 to 10 days after inoculation of the pathogen; the number and fresh mass of fruits and the fresh and dry mass of the aerial parts of the plants at 60 days after sowing. A lower disease severity was observed on younger leaves, on plants inoculated at 20 days of age from the sixthday of evaluation, with plants inoculated at 30 days being the most susceptible, reaching 64% disease severity after nine days of inoculation. The variables plant height, number of leaves and fruits, fruit production and fresh and dry mass of the aerial part of the plant were significantly affected by the age of the plant at the timeof inoculation of the pathogen C. cassiicola, with the lowest values, in general, in the youngest inoculated plants, at 20 days, while the 40-day-old plants had the least affected vegetative development and production, evidencing the importance of delaying the entry of the disease in the area.","PeriodicalId":38570,"journal":{"name":"Comunicata Scientiae","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49216105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Salicylic acid does not alleviate salt stress on physiological indicators and growth of guava 水杨酸不能减轻盐胁迫对番石榴生理指标和生长的影响

Comunicata Scientiae Pub Date : 2023-08-07 DOI: 10.14295/cs.v14.3888

│. Bom, C. N. Lacerda, G. S. Lima, L. Almeida, Anjos Soares, H. Gheyi, P. Fernandes, Idelvan José da Silva

{"title":"Salicylic acid does not alleviate salt stress on physiological indicators and growth of guava","authors":"│. Bom, C. N. Lacerda, G. S. Lima, L. Almeida, Anjos Soares, H. Gheyi, P. Fernandes, Idelvan José da Silva","doi":"10.14295/cs.v14.3888","DOIUrl":"https://doi.org/10.14295/cs.v14.3888","url":null,"abstract":"In the semi-arid region, the quality of water for irrigation stands out as a limiting factor for the expansion ofagriculture. Thus, it is extremely important to search for alternatives that minimize the effects of salt stress onplants. Foliar application of salicylic acid stands out among these strategies. In this context, the objective ofthis study was to evaluate the gas exchange, photosynthetic pigments, and growth of guava as a function ofirrigation water salinity and exogenous application of salicylic acid in the post-grafting stage. The experimentwas conducted under greenhouse conditions, in a randomized block experimental design, in a 2 × 4 facto rialscheme, corresponding to two levels of electrical conductivity of irrigation water (0.6 and 3.2 dS m-1) and fourconcentrations of salicylic acid (0; 1.2; 2.4 and 3.6 mM), with three replicates. Irrigation with water of 3.2 dS m-1caused reductions in transpiration, CO2 assimilation rate, instantaneous water use efficiency and instantaneouscarboxylation efficiency of guava, at 150 days after transplanting. Water with electrical conductivity of 3.2 dSm-1 reduced the growth in stem diameter and the absolute and relative growth rates, as well as the relativewater content, and chlorophyll a and b contents of guava plants. The interaction between water salinity levelsand salicylic acid concentrations did not influence the physiological indices and growth of guava in the postgraftingphase.","PeriodicalId":38570,"journal":{"name":"Comunicata Scientiae","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47595849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tipo de semeadura e controle de plantas espontâneas no cultivo orgânico de cenoura 胡萝卜有机栽培中自发种植的播种类型及防治

Comunicata Scientiae Pub Date : 2023-08-07 DOI: 10.14295/cs.v14.3995

Geazí Penha Pinto, Regina Lúcia Félix Ferreira, Sebastião Elviro de Araújo Neto, L. G. D. S. E. Souza, T. L. Uchôa, Lucas Machado, Nilciléia Mendes da Silva

{"title":"Tipo de semeadura e controle de plantas espontâneas no cultivo orgânico de cenoura","authors":"Geazí Penha Pinto, Regina Lúcia Félix Ferreira, Sebastião Elviro de Araújo Neto, L. G. D. S. E. Souza, T. L. Uchôa, Lucas Machado, Nilciléia Mendes da Silva","doi":"10.14295/cs.v14.3995","DOIUrl":"https://doi.org/10.14295/cs.v14.3995","url":null,"abstract":"A interferência de plantas espontâneas é um grande problema na olericultura, sendo necessárias técnicas viáveis para controle. Assim o objetivo deste trabalho avaliar o uso de coberturas de solo e tipos de semeadura na produtividade de cenoura orgânica. O experimento foi realizado no Acre, entre julho e setembro de 2018, utilizando-se a cultivar Brasília Irecê. Instalado no delineamento em blocos casualizados, em parcelas subdivididas 4 x 3, com quatro métodos de controle de plantas espontâneas: solo nu; cobertura morta vegetal; cobertura plástica “mulching” e solarização; e três tipos de semeadura: semeadura direta, semeadura indireta e sementes pré-germinadas. As avaliações foram realizadas aos 81 dias. A maior produtividade comercial orgânica foi obtida em solo com cobertura plástica mulching, em semeadura direta (44,87 t ha-1) e pré-germinada (44,39 t ha-1). Enquanto a solarização e a cobertura morta vegetal foram eficientes na produtividade comercial convencional. A supressão de plantas espontânea foi maior em solo protegido com cobertura, morta vegetal e plástica “mulching”. O uso de cobertura plástica “mulching”, aliada à semeadura direta e pré-germinada, eleva a produtividade de cenoura orgânica.","PeriodicalId":38570,"journal":{"name":"Comunicata Scientiae","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45198359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Growth of pecan rootstocks with the use of liquid humus in an organic production system 有机生产系统中液体腐殖质对山核桃砧木生长的影响

Comunicata Scientiae Pub Date : 2023-08-07 DOI: 10.14295/cs.v14.3957

Guilherme Ferreira da Silva, Cristiano Geremias Hellwig, Caroline Farias Barreto, C. Martins, P. Mello-Farias

{"title":"Growth of pecan rootstocks with the use of liquid humus in an organic production system","authors":"Guilherme Ferreira da Silva, Cristiano Geremias Hellwig, Caroline Farias Barreto, C. Martins, P. Mello-Farias","doi":"10.14295/cs.v14.3957","DOIUrl":"https://doi.org/10.14295/cs.v14.3957","url":null,"abstract":"Pecan farming is a long-term investment which needs quality seedlings to establish an orchard. Pecan rootstocksmust have a vigorous radicular system to form quality seedlings. Liquid humus, which acts as an agent thatpromotes their growth and development, is a bioinput that is specially used in organic production systems.This study aimed at evaluating effects of different frequencies of liquid humus application on pecan rootstockgrowth and development in an organic system. Liquid humus at 30% was applied every 7, 14, 21 and 28 days.The control treatment consisted of water application. The experiment was carried out with ‘Barton’ rootstocksin a greenhouse at the Embrapa Clima Temperado located in Pelotas, RS, Brazil. The following variables wereevaluated 280 and 480 days after transplantation: plant height; stem diameter; leaf area; fresh and dry massesof the aerial part; main and secondary root lengths; fresh and dry masses of roots; fresh and dry masses of themain root; fresh and dry masses of secondary roots; and the Dickson Quality Index. Liquid humus increasedsecondary root length of pecan rootstocks, mainly when it was applied every seven days. Thus, the bioinputmay be used for this purpose.","PeriodicalId":38570,"journal":{"name":"Comunicata Scientiae","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46526735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fitossociologia e períodos de interferência de plantas daninhas na cultura do abacaxizeiro cv. Pérola em função do espaçamento 作为间距函数的植物社会学和菠萝栽培中杂草干扰期

Comunicata Scientiae Pub Date : 2023-08-07 DOI: 10.14295/cs.v14.3949

Antônio Barbosa da Silva, Renan Cantalide de Souza, Jorge Luiz Xavier Lins Cunha, Lucas Alceu Rodrigues Lima, Luiz Eugênio Bulhões, João Virginio da Silva Neto

{"title":"Fitossociologia e períodos de interferência de plantas daninhas na cultura do abacaxizeiro cv. Pérola em função do espaçamento","authors":"Antônio Barbosa da Silva, Renan Cantalide de Souza, Jorge Luiz Xavier Lins Cunha, Lucas Alceu Rodrigues Lima, Luiz Eugênio Bulhões, João Virginio da Silva Neto","doi":"10.14295/cs.v14.3949","DOIUrl":"https://doi.org/10.14295/cs.v14.3949","url":null,"abstract":"O trabalho teve como objetivo realizar o estudo fitossociológico e a determinar os períodos de interferência das plantas daninhas na cultura do abacaxi em função do espaçamento. As variáveis avaliadas da comunidade infestante foram: a frequência, densidade, abundância, índice de valor de importância e massa seca das plantas daninhas. Para os períodos de interferência foram determinadas a produtividade do abacaxizeiro e ºBrix dos frutos. As famílias botânicas Asteraceae e Poaceae foram que apresentaram o maior número de espécies de plantas daninhas. Digitaria insularis, Richardia grandiflora, Panicum maximum, Cyperus rotundus e Cencrus echinatus foram as principais plantas daninhas encontradas. O período anterior à interferência, período total de prevenção à interferência e período crítico de prevenção à interferência foram de 35 dias, 35 dias aos 365 dias e 330 dias após o plantio, respectivamente. A redução devido à interferência das plantas daninhas por todo o ciclo pode ser maior que 80% para a cultura do abacaxizeiro.","PeriodicalId":38570,"journal":{"name":"Comunicata Scientiae","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47554475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Shading and controlled-release fertilizer in the production of Oenocarpus bataua Mart. Seedlings 遮荫与控释肥在牛油果生产中的应用。幼苗

Comunicata Scientiae Pub Date : 2023-08-07 DOI: 10.14295/cs.v14.3988

J. M. Araújo, M. S. Rodrigues, M. C. Capistrano, R. C. A. Andrade Neto, E. Mattar, A. M. P. Lunz

{"title":"Shading and controlled-release fertilizer in the production of Oenocarpus bataua Mart. Seedlings","authors":"J. M. Araújo, M. S. Rodrigues, M. C. Capistrano, R. C. A. Andrade Neto, E. Mattar, A. M. P. Lunz","doi":"10.14295/cs.v14.3988","DOIUrl":"https://doi.org/10.14295/cs.v14.3988","url":null,"abstract":"When associated an adequate shading and nutrition the seedlings to reach characteristics that allow them tosurvive in the field and increase production. Thus, this work aimed to evaluate the production of Oenocarpusbataua seedlings in response to different shade environments and controlled-release fertilizer doses. Thestudy was carried out from at the Embrapa nursery located in the municipality of Rio Branco, Acre state. Theexperimental design was complete randomized blocks with three replications and six plants per plot. Thetreatments were distributed according to a 4 x 5 factorial scheme, i.e., four shade environments (20%, 30%, 50%and 75%) and five CRF doses (0.0, 1.5, 3.0, 4.5 and 6.0 kg m–3) mixed with the substrate. Biometric, biomass andquality variables were evaluated at 305 days after transplanting. The ANOVA was applied for the qualitativefactor and regression analysis was performed for the quantitative factor, both at 5% probability. The treatmentswere grouped by analyzing canonical variables, a multivariate statistical and realized the Pearson’s correlationbetween variables was determined through correlation networks. The shading environment and the controlledreleasefertilizer positively influenced the growth and quality of Oenocarpus bataua seedlings. The seedlings ofOenocarpus bataua have better biometric characteristics produced in a nursery with 50% shading. Oenocarpusbataua seedlings show better quality when 3.88 kg m-3 of controlled release fertilizer are used.","PeriodicalId":38570,"journal":{"name":"Comunicata Scientiae","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44074701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gas exchange and leaf area requirement in tall ‘Prata’ banana 高大‘Prata’香蕉的气体交换和叶面积需求

Comunicata Scientiae Pub Date : 2023-08-07 DOI: 10.14295/cs.v14.4125

Sérgio Luiz Rodrigues Donato, Alessandro De Magalhães Arantes, Alex Rodrigues Silva Soares, Maria Geralda Vilela Rodrigues, Marcelo Rocha dos Santos

{"title":"Gas exchange and leaf area requirement in tall ‘Prata’ banana","authors":"Sérgio Luiz Rodrigues Donato, Alessandro De Magalhães Arantes, Alex Rodrigues Silva Soares, Maria Geralda Vilela Rodrigues, Marcelo Rocha dos Santos","doi":"10.14295/cs.v14.4125","DOIUrl":"https://doi.org/10.14295/cs.v14.4125","url":null,"abstract":"The objective of this study was to evaluate the gas exchange and leaf area requirement for yield of six tall ‘Prata’ banana genotypes, under semi-arid conditions. The genotypes ‘Pacovan’ (AAB), ‘Pacovan Ken’ (AAAB), ‘Preciosa’ (AAAB), ‘Japira’ (AAAB), ‘PV79-34’ (AAAB) and ‘Garantida’ (AAAB) (four tetraploid hybrids and one triploid cultivar) were evaluated in two cycles, arranged in a completely randomized design in a factorial scheme, with five replicates and four usable plants per plot. For the physiological characteristics, a 6 x 12 x 2 factorial arrangement was adopted, with six genotypes, 12 evaluation periods and two reading times in each period, arranged in a completely randomized design. Of the 12 phytotechnical characteristics measured, seven were influenced by the interaction between the factors cultivar and cycle. Internal CO2 concentration, net photosynthesis rate, instantaneous water use efficiency, carboxylation efficiency and quantum efficiency of photosynthesis recorded in banana leaves are higher in the morning, favored by higher stomatal conductance and lower leaf temperature resulting from the meteorological conditions, while transpiration and intrinsic water use efficiency increase in the afternoon. The hybrid ‘PV79-34’ has higher yield and production efficiency per unit of leaf area, associated with high transpiration, compared to the tall ‘Prata’ banana cultivars.","PeriodicalId":38570,"journal":{"name":"Comunicata Scientiae","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44530582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Productivity and physiology of kale inoculated with entomopathogenic fungi of Amazon region to control caterpilla 接种亚马逊地区昆虫病原真菌防治羽衣甘蓝幼虫的产量和生理特征

Comunicata Scientiae Pub Date : 2023-08-07 DOI: 10.14295/cs.v14.3960

Débora Oliveira Gomes, Naiane Franciele Barreira de Melo, Rubson da Costa Leite, Flavio Henrique Santos Rodrigues, Gledson Luiz Salgado de Castro, Jessivaldo Rodrigues Galvão, Rafael Gomes Viana, Telma Fátima Vieira Batista

{"title":"Productivity and physiology of kale inoculated with entomopathogenic fungi of Amazon region to control caterpilla","authors":"Débora Oliveira Gomes, Naiane Franciele Barreira de Melo, Rubson da Costa Leite, Flavio Henrique Santos Rodrigues, Gledson Luiz Salgado de Castro, Jessivaldo Rodrigues Galvão, Rafael Gomes Viana, Telma Fátima Vieira Batista","doi":"10.14295/cs.v14.3960","DOIUrl":"https://doi.org/10.14295/cs.v14.3960","url":null,"abstract":"The use of biological control agents such as entomopathogenic fungi is an alternative for the control of kale(Brassica oleracea L.) defoliating caterpillars. The objective was to investigate the efficacy of entomopathogenicfungi of Amazon region in the control of defoliating caterpillars in kale and their impacts on the physiologicaland agronomic responses of the crop. Field and greenhouse experiments were conducted in randomized blockdesign and completely randomized design, respectively. The treatments consisted in the application of isolatesof entomopathogenic fungi: Beauveria bassiana, Isaria sp., Metarhizium anisopliae and Trichoderma asperellum.The control treatment consisted of the application of an chemical insecticide based on deltamethrin.Variablesreferring to the development, yield and physiology of the plants were evaluated. Field results revealed thatplants treated with the fungi B. bassiana, M. anisopliae and T. asperellum showed levels of severity, number ofleaves and commercial yield that did not differ from the standard treatment; however, they showed a lowerpopulation density of the defoliating caterpillar complex. The application of the treatments with M. anisopliaeand chemical insecticide showed better photosynthetic performance. In greenhouse, the fungus T. asperellumprovided greater plant height and robustness index in relation to the treatment with chemical insecticide.The entomopathogenic fungi of Amazon region can be contributed to the integrated management of leafdefoliating caterpillars in kale. These microorganisms have similar efficiency with chemical insecticides, beingecologically and economically viable to mitigate the negative impacts caused by the systematic use ofchemicals.","PeriodicalId":38570,"journal":{"name":"Comunicata Scientiae","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46542346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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