scholarly journals POTENSI Trichoderma viride DALAM MENEKAN SERANGAN Sclerotium rolfsii PADA TANAMAN KEDELAI (Glycine max L.)

2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Si H Wahyuni
Keyword(s):  
Glycine Max ◽  
Trichoderma Viride ◽  
Sclerotium Rolfsii ◽  
Soybean Crop ◽  
Glycine Max L

Potential  of Trichoderma viride to control Sclerotium rolfsii on soybean (Glycine max L.). This research aims to determine the  potential of T. viride against S. rolfsii attack on soybean crop (Glycine max L.). The research was conducted in the field of Faculty of Agriculture, Graha Nusantara University Padangsidimpuan, from May to August 2017. The results showed the highest percentage disease of incidence of S. rolfsii at the highest observation of 2, 3, 4 MST (Week After Planting), from W2D0 (when planting / 75 gram /polybag) 46.77%, 61.35% and 73.29%. and the lowest was W1D4 (7 days before planting/300 gram / polybag) 1.8%, 2.3% and 3.41%. Keywords : Potential, Trichoderma viride, Sclerotium rolfsii, Soybean

scholarly journals Aspectos Bionômicos de Spodoptera eridania (Cramer): Uma Praga em Expansão na Cultura da Soja na Região do Cerrado Brasileiro

2014 ◽  
Vol 7 (2) ◽  
pp. 75-80 ◽  
Author(s):  
Bruno Henrique Sardinha de Souza ◽  
Eduardo Neves Costa ◽  
Anderson Gonçalves da Silva ◽  
Arlindo Leal Boiça Júnior
Keyword(s):  
International Trade ◽  
Glycine Max ◽  
Insect Pests ◽  
High Yield ◽  
Spodoptera Eridania ◽  
Soybean Crop ◽  
Glycine Max L ◽  
Midwest Region ◽  
Soybean Plants ◽  
Economical Losses

A soja, Glycine max (L.) Merril, é uma das culturas de maior importância econômica para o Brasil, considerada uma commodity nacional devido à sua alta produtividade e participação nas exportações no mercado internacional. Dentre os insetos-pragas que causam danos para essa cultura, nos últimos anos agrícolas têm merecido destaque as lagartas de Spodoptera eridania (Cramer), as quais podem se alimentar tanto de folhas quanto das vagens das plantas de soja, causando prejuízos econômicos para os sojicultores, principalmente nas áreas do Cerrado localizadas na região Centro-Oeste do país. O objetivo da presente revisão é disponibilizar informações sobre os aspectos bionômicos de S. eridania, a fim de dar subsídios para futuras pesquisas sobre o manejo dessa praga.Bionomic Aspects of Spodoptera eridania (Cramer): A Pest in Expansion on Soybean Crop in the Region of Brazilian CerradoAbstract. Soybean, Glycine max (L.) Merril, represents one of the major economically important crops to Brazil, and is considered a national commodity because of its high yield and participation in international trade exportations. Among the insect pests that cause damage to this crop, Spodoptera eridania (Cramer) larvae highlighted in the last agricultural seasons by feeding on leaves and pods of soybean plants, and hence causing economical losses to soybean growers, especially in the Cerrado areas located in the Midwest region of the country. We aimed with this review to provide information about bionomical aspects of S. eridania in order to give subsides for further researches on the management of this pest.

scholarly journals Extratos e óleos essenciais como alternativa no controle de Sclerotinia sclerotiorum e Sclerotium rolfsii isolados de soja (Glycine max L.)

2020 ◽  
Vol 13 (2) ◽  
pp. 737-753
Author(s):  
Talita Neres Queiroz ◽  
Luiz Carlos Pascuali ◽  
Ana Clara do Prado Silva ◽  
Alexandre Gonçalves Porto ◽  
José Wilson Pires Carvalho
Keyword(s):  
Glycine Max ◽  
Sclerotinia Sclerotiorum ◽  
Azadirachta Indica ◽  
Sclerotium Rolfsii ◽  
Melissa Officinalis ◽  
Cymbopogon Citratus ◽  
Cymbopogon Nardus ◽  
Glycine Max L

O uso de defensivos agrícolas tem provocado danos ao meio ambiente, à saúde humana e contribuído para a resistência de patógenos. Neste estudo, objetivou-se analisar a inibição do crescimento micelial dos fungos Sclerotinia sclerotiorum e Sclerotium rolfsii na presença de extratos e óleos essenciais de citronela (Cymbopogon nardus), cravo-da-índia (Caryophilus aromaticus), cidreira (Cymbopogon citratus), melissa (Melissa officinalis L.) e neem (Azadirachta indica) e as combinações dos mesmos. Nos estudos com óleos essenciais foi utilizada a concentração de 5.000 ppm e 50.000 ppm para os extratos em meio BDA com quatro repetições. Os óleos essenciais inibiram totalmente o crescimento micelial dos dois fungos testados, exceto o óleo de neem, que não inibiu o crescimento de S. sclerotiorum e apresentou uma inibição de apenas 10% do fungo S. rolfsii. Para os extratos hidroalcoólicos, obteve-se 100% de eficácia na inibição, com exceção ao extrato de melissa que inibiu 96,2% do crescimento de S. sclerotiorum e 80,4% sobre S. rolfsii. No tratamento com extratos hidroacêtonicos, obteve-se 100% de inibição dos fungos, entretanto, o extrato de melissa foi menos eficaz com 95,9% de inibição para S. sclerotiorum e 46,2% para S. rolfsii. Diante dos resultados pode-se inferir que os óleos e extratos podem ser eficazes no controle de fungos patogênicos da cultura de soja, inibindo o crescimento micelial dos fungos S. sclerotiorum e S. rolfsii, podendo ser apontados como uma alternativa no controle destes fitopatógenos.

scholarly journals Estimated losses in soybean (Glycine max (L.) Merril) harvest according to the speed and rotation of the trail system

2021 ◽  
pp. 559-563
Author(s):  
Jarlyson Brunno Costa Souza ◽  
Mádilo Lages Vieira Passos ◽  
Eduardo Arouche da Silva ◽  
Armando Lopes de Brito Filho ◽  
Samira Luns Hatum de Almeida ◽  
...  
Keyword(s):  
Glycine Max ◽  
Experimental Design ◽  
Flow System ◽  
Axial Flow ◽  
Maximum Power ◽  
Conveyor System ◽  
Soybean Crop ◽  
Glycine Max L ◽  
Trail System

The soybean crop (Glycine max. (L.) Merril) shows strong participation in the Brazilian economy. Therefore, the aim of the present study was to quantify the losses in the cutting and feeding platform and in the trail system in mechanized soybean harvest by analyzing different speed and rotation adjustments of the trailing cylinder. The experiment was carried out in a commercial soybean plot on a farm located in the municipality of Brejo (MA), during the 2017/2018 harvest. The harvester evaluated was a Case IH 8120, with a maximum power of 34.2 kW, axial flow system, and 12.2-m platform equipped with a conveyor system (draper). The experiment was conducted in two different areas. Area 1 was planted with the Brasmax® Opus (BMX Opus) cultivar, while area 2 was cultivated with the BRS 9383 cultivar. The treatments consisted of three machine speeds (4 km h-¹, 6 km h-¹, and 7 km h-¹), associated with the rotation levels of 500 rpm and 800 rpm in the trail system. The experimental design used was randomized blocks in a 3 x 2 factorial arrangement, with four replications. For the BMX Opus cultivar, harvest losses did not influence the travel speeds and rotations evaluated in the experiment due to the marked instability within the treatments. The BRS 9383 cultivar showed satisfactory results at a speed of 4 km h-1 combined with a rotation of 800 rpm, which obtained acceptable numbers for the soybean harvest (54.09 kg ha-1).

scholarly journals Curtobacterium flaccumfaciens pv. flaccumfaciens na cultura da soja: importância e manejo

2021 ◽  
Vol 24 (5-esp.) ◽  
pp. 552-559
Author(s):  
Jacqueline Dalbelo Puia ◽  
Adriano Thibes Hoshino ◽  
Leandro Camargo Borsato ◽  
Marcelo Giovanetti Canteri ◽  
Sandra Cristina Vigo
Keyword(s):  
Glycine Max ◽  
New Technologies ◽  
Control Strategies ◽  
Integrated Management ◽  
Tan Spot ◽  
Limiting Factors ◽  
Soybean Crop ◽  
Best Management ◽  
Glycine Max L ◽  
Soybean Plants

A soja (Glycine max L.) é principal cultura do agronegócio brasileiro e tornou-se a mais expressiva economicamente no país, tanto pelo aumento da área cultivada quanto pelas novas tecnologias disponibilizadas aos produtores. As doenças podem ter origens fúngicas, bacterianas e viróticas e neste estudo destaca-se a murcha-de-Curtobacterium, causada pela bactéria gram-positiva Curtobacterium flaccumfaciens pv. flaccumfaciens. O sintoma é caracterizado por uma mancha bacteriana marrom nas folhas de soja. O objetivo do trabalho foi expor os aspectos do patógeno C. flaccumfaciens pv. flaccumfaciens na cultura da soja, discutindo as principais estratégias de controle para minimizar os problemas com a doença. Deve-se ressaltar que, ao obter conhecimento sobre os aspectos agronômicos e os fatores limitantes da cultura da soja em relação à bactéria e seus principais aspectos biológicos, será possível a adoção das melhores técnicas de manejo da doença. Conclui-se que a busca por cultivares resistentes é de extrema importância no manejo da doença, uma vez que outros métodos de controle são pouco eficientes. Para alcançar o controle da mancha bacteriana marrom na cultura da soja é necessário a adoção conjunta de todas as técnicas de controle empregadas de forma unificada (manejo integrado da doença) visando a manutenção da população de C. flaccumfaciens pv. flaccumfaciens em baixos níveis.   Palavras-chave: Mancha Bacteriana Marrom. Controle de Doenças. Glycine max L. Distribuição.   Abstract Soybean (Glycine max L.), is the main crop of Brazilian agribusiness, it has become the most economically important in the country, both due to the increase in cultivated area and the new technologies available to farmers. Diseases can have several origins, including fungal, bacterial and virotic, but in this study, we will talk about curtobacterium wilt, caused by a gram-positive bacterium Curtobacterium flaccumfaciens pv. flaccumfaciens, responsible for brown bacterial wilt on soybean plants. The objective of this work was to expose the aspects of the pathogen Curtobacterium flaccumfaciens pv. flaccumfaciens in soybean crops, discussing the main control strategies to minimize problems caused by this disease. It should be emphasized that gaining knowledge about the agronomic aspects and limiting factors of soybean crop in relation to the pathogen is necessary to reach the best management of the disease. We concluded that the search for resistant cultivars is extremely important for disease management, since other control methods are inefficient. To achieve the control of bacterial tan spot in soybean crop, it is necessary to joint adoption of all the control techniques used in a unified way (disease integrated management) aiming at maintaining the population of Curtobacterium flaccumfaciens pv. flaccumfaciens at low levels.   Keywords: Bacterial Tan Spot. Disease Control; Glycine max L. Distribution.

scholarly journals Efektivitas Beberapa Agen Antagonis dan Cara Aplikasinya Untuk Menekan Pertumbuhan Sclerotium rolfsii pada Tanaman Kedelai (Glycine max L. Merrill)

2016 ◽  
Vol 1 (1) ◽  
pp. 155-167
Author(s):  
Nurlela Ela ◽  
Lukman Hakim ◽  
Abduh Ulim
Keyword(s):  
Glycine Max ◽  
Sclerotium Rolfsii ◽  
Damping Off ◽  
Trichoderma Sp ◽  
Glycine Max L

Penelitian ini bertujuan untuk mengetahui efektivitas beberapa agen antagonis serta cara aplikasinya dalam menekan patogen jamur S. rolfsii pada tanaman kedelai. Penelitian menggunakan Rancangan Acak Lengkap (RAL) Faktorial yang terdiri atas 2 faktor. Faktor pertama adalah jenis agen antagonis dan faktor kedua adalah cara aplikasi. Agen antagonis yang dicobakan yaitu Pseudomonas flourescens, Trichoderma sp., Gliocladium sp. dan Coynebacterium sp. diaplikasikan dengan perendaman kemudian diaplikasikan ke dalam tanah. Hasil penelitian menunjukkan bahwa jenis agen antagonis berpengaruh sangat nyata terhadap masa inkubasi post emergence damping-off, jenis agen antagonis berpengaruh nyata terhadap persentase perkecambahan benih kedelai, persentase benih terserang sebelum muncul ke permukaan tanah (pre emergence damping-off), dan persentase benih terserang setelah muncul ke permukaan tanah (post emergence damping-off) namun agen antagonis tidak berpengaruh nyata terhadap tinggi tanaman dan jumlah daun umur 30 hari kemudian cara aplikasi yang paling efektif adalah langsung ke dalam tanah dan tidak terdapat interaksi antara jenis agen antagonis dengan cara aplikasinya.

scholarly journals Desempenho Agronômico de Cultivares de Soja Precoce em Função de Doses de Pó-de-Ametista

2020 ◽  
Vol 24 (4) ◽  
pp. 343-347
Author(s):  
Karen Annie Dias de Morais ◽  
Alan Mario Zuffo ◽  
Jorge González Aguilera ◽  
Francisco Mendes de Oliveira Neto ◽  
Elicia Lidiane Santos da Silva ◽  
...  
Keyword(s):  
Glycine Max ◽  
Experimental Design ◽  
Grain Yield ◽  
Protein Content ◽  
Block Design ◽  
Soybean Crop ◽  
Soybean Cultivars ◽  
Randomized Complete Block Design ◽  
Glycine Max L ◽  
Rock Dust

A incorporação de pó-de-ametista no solo pode promover a remineralização e incrementar a produtividade da cultura da soja. Portanto, o objetivo com o presente trabalho foi avaliar o desempenho e as características agronômicas de cultivares de soja precoce após a aplicação superficial de pó-de-ametista no solo. O delineamento experimental utilizado foi o de blocos casualizados, disposto em esquema fatorial 2×4, com quatro repetições. Os tratamentos foram constituídos por duas cultivares de soja (Brasmax Foco IPRO e Brasmax Desafio IPRO) e quatro doses de pó de rocha [0 (controle), 3, 6 e 9 t ha-1], cuja fonte é resíduo de uma mineradora de pedra ametista. Na colheita foram determinados: a altura das plantas, a inserção do primeiro legume, o número de legumes, o número de grãos por legume, a massa de mil grãos, produtividade de grãos e o teor de proteína dos grãos. A aplicação de pó-de-ametista resultou em aumento no número de legumes por plantas, todavia, não alterou a produtividade de grãos, independentemente das doses.   Palavras-chave: Glycine max L. Merrill. Pó-de-Rocha. Remineração.   Abstract The incorporation of amethyst powder in the soil can promote remineralization and increase the productivity of the soybean crop. Therefore, the objective of the present work was to evaluate the performance of the agronomic characteristics of early soybean cultivars after the surface application of amethyst powder in the soil. The experimental design was a randomized complete block design, arranged in a 2×4 factorial scheme, with four replications. The treatments consisted of two soybean cultivars (Brasmax foco IPRO and Brasmax Desafio IPRO) and four doses of rock dust [0 (control), 3, 6 and 9 t ha-1], whose source is the residue of an amethyst stone miner. At harvest, the height of the plants, the insertion of the first legume, the number of legume, the number of grains per legume, the mass of one thousand grains, the grain yield were determined and the protein content of the grains. The application of amethyst powder resulted in an increase in the number of vegetables per plant, however, it did not alter the grain yield, regardless of the doses . Keywords: Glycine max L. Merrill. Rock Dust. Remineralization.

scholarly journals PENGARUH PEMBERIAN PUPUK KANDANG TERHADAP HASIL KEDELAI (Glycine max L) PADA COCOPEAT

Jurnal Agrium ◽  
2018 ◽  
Vol 15 (1) ◽  
pp. 8
Author(s):  
Giska Oktabriana
Keyword(s):  
Glycine Max ◽  
Soybean Yield ◽  
Soybean Crop ◽  
Randomized Design ◽  
Glycine Max L ◽  
Completely Randomized Design ◽  
The Impact ◽  
Crop Research

The purpose of this research is to investigate the impact of application of manure on soybean yield on cocopeat and in order to get the appropriate dose for the soybean crop. Research was done using Completely Randomized Design (CRD) which consists of 4 treatments and 3 replications. There are 12 unit of experiments with composition: A = control (without fertilizer), B = cocopeat + 100 g manure / polybag and C = cocopeat + 200 g manure / polybag, cocopeat + 300 g manure / polybag. The research revealed that the application of manure can increase the soybean yield on cocopeat

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