Revista Brasileira de Milho e Sorgo最新文献_第4页

MACHINE LEARNING FOR CROP SCIENCE: APPLICATIONS AND PERSPECTIVES IN MAIZE BREEDING 作物科学中的机器学习：在玉米育种中的应用与展望

Revista Brasileira de Milho e Sorgo Pub Date : 2022-04-01 DOI: 10.18512/rbms2022vol21e1257

A. C. Lorena, Alexandre Hild Aono, Ricardo José GONZAGA PIMENTA, Felipe ROBERTO FRANCISCO, Anete Pereira de Souza

引用次数: 0

MAIZE CULTIVARS WITH NATIVE INSECT RESISTANCE – POTENTIAL, ADVANCES, AND CHALLENGES 具有本地抗虫性的玉米品种——潜力、进展和挑战

Revista Brasileira de Milho e Sorgo Pub Date : 2022-04-01 DOI: 10.18512/rbms2022vol21e1250

P. Viana, P. E. Guimarães, S. M. Mendes

引用次数: 0

PLANT PHOSPHORUS USE EFFICIENCY IN ACID TROPICAL SOIL 热带酸性土壤植物磷利用效率研究

Revista Brasileira de Milho e Sorgo Pub Date : 2022-03-25 DOI: 10.18512/rbms2022vol21e1259

Maria José VILAÇA DE VASCONCELOS, José Edson FONTES FIGUEIREDO, M. F. DE OLIVEIRA, R. Schaffert, Kachandra G. Raghothama

{"title":"PLANT PHOSPHORUS USE EFFICIENCY IN ACID TROPICAL SOIL","authors":"Maria José VILAÇA DE VASCONCELOS, José Edson FONTES FIGUEIREDO, M. F. DE OLIVEIRA, R. Schaffert, Kachandra G. Raghothama","doi":"10.18512/rbms2022vol21e1259","DOIUrl":"https://doi.org/10.18512/rbms2022vol21e1259","url":null,"abstract":"Phosphorus is an essential macronutrient for plant growth and development. However, phosphorus availability is low in many soils, and the plant's ability to acquire phosphorus from the rhizosphere is critical in the acid soils of the Brazilian Cerrado. In addition, high levels of fixed phosphate (Pi) in many soils reduce phosphorus availability to plants. Thus, Pi deficiency is a significant concern for crop growth and high yields in tropical soils. The intra- and interspecific variations in plant growth under Pi-limiting conditions are complex traits controlled by many induced or suppressed genes, comprising an intricate epistatic regulatory network interacting within cells and the external environment. The microRNA genes (miRNAs), a class of regulators that induce, degrade or repress mRNA transcription and translation, are another critical aspect of this network. As a result, changes in morphology (growth and root architecture) and physiological (enzymes, organic acids, and anthocyanin) can be observed in plants under Pi stress. Furthermore, symbiotic associations with phosphate-solubilizing bacteria and mycorrhizal fungi increase phosphorus availability to plants. Therefore, understanding mechanisms involved in plant adaptation to phosphorus deficiency is critical for developing cultivars adapted to low phosphorus levels in the Brazilian acid soils. This review addresses P acquisition and use by plants and discusses its implications in genetic breeding programs.","PeriodicalId":34859,"journal":{"name":"Revista Brasileira de Milho e Sorgo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47055085","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: 2

CHALLENGES OF MAIZE BREEDING UNDER TROPICAL CONDITIONS OF BRAZIL 巴西热带条件下玉米育种面临的挑战

Revista Brasileira de Milho e Sorgo Pub Date : 2022-03-25 DOI: 10.18512/rbms2022vol21e1258

Renzo Garcia Pinho, Eric Vinicius VIEIRA SILVA, Thiago Lucas de Oliveira

{"title":"CHALLENGES OF MAIZE BREEDING UNDER TROPICAL CONDITIONS OF BRAZIL","authors":"Renzo Garcia Pinho, Eric Vinicius VIEIRA SILVA, Thiago Lucas de Oliveira","doi":"10.18512/rbms2022vol21e1258","DOIUrl":"https://doi.org/10.18512/rbms2022vol21e1258","url":null,"abstract":"Tropical maize production represents 49% of the global maize harvested area. In terms of productivity, the annual increase rate in tropical regions is twice as higher as the increase rate in temperate regions. The increase in maize grain yield was expressive in the last 41 years in Brazil. Such achievement was possible due to the joint efforts of many areas of science, especially, plant breeding. Although maize breeding success, many are the challenges faced by the maize breeders to develop high-yielding maize hybrids. Tropical conditions provide more intense challenges in terms of pests and diseases pressures, and above all, water deficit conditions. In addition, the constant increase of breeding programs costs requires the development and application of new techniques to improve the genetic gain per time unit, increasing the maize breeding programs’ efficiency. This review discusses the main challenges faced by maize breeding programs under tropical conditions, highlighting topics related to the development of maize hybrids for first and second growing seasons; breeding for biotic and abiotic stresses conditions; specialty maize breeding; use of transgenic in maize; and genomic tools to maximize the efficiency of maize breeding programs under tropical conditions. ","PeriodicalId":34859,"journal":{"name":"Revista Brasileira de Milho e Sorgo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49347465","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

WHOLE SORGHUM FLOUR PROCESSED AS COOKIES MAINTAINED BIOACTIVE COMPOUNDS AT STORAGE 加工成饼干的全高粱面粉在储存中保持了生物活性化合物

Revista Brasileira de Milho e Sorgo Pub Date : 2022-03-25 DOI: 10.18512/rbms2022vol21e1247

Débora David Pansini, Rosiane Cosme Nascimento, V. Queiroz, J. E. F. Figueiredo, Érika Madeira MOREIRA DA SILVA, É. A. Moraes

{"title":"WHOLE SORGHUM FLOUR PROCESSED AS COOKIES MAINTAINED BIOACTIVE COMPOUNDS AT STORAGE","authors":"Débora David Pansini, Rosiane Cosme Nascimento, V. Queiroz, J. E. F. Figueiredo, Érika Madeira MOREIRA DA SILVA, É. A. Moraes","doi":"10.18512/rbms2022vol21e1247","DOIUrl":"https://doi.org/10.18512/rbms2022vol21e1247","url":null,"abstract":"O sorgo é um cereal em destaque devido aos seus compostos fenólicos bioativos com efeitos protetores da saúde dos consumidores. Este estudo teve como objetivo avaliar as características tecnológicas, sensoriais e compostos de biscoitos elaborados com farinhas de sorgo em diferentes proporções e o efeito do armazenamento dos biscoitos no teor de compostos fenólicos e na capacidade antioxidante. Os biscoitos foram preparados com farinha integral do genótipo de sorgo BRS 506 e amido de milho nas proporções de 50 (50 SF), 75 (75 SF) e 100 (100 SF) g de sorgo / 100g de farinha total. Medidas de biscoitos, análise sensorial e composição química foram determinadas. Os compostos fenólicos foram compensados durante 45 dias de armazenamento.A farinha de sorgo aumentou o fator de expansão dos biscoitos, especialmente para 75SF e 100 SF. Com exceção da textura e da intenção de compra, os biscoitos de sorgo têm índice de aceitação superior a 70%. A farinha de sorgo melhorou como propriedades nutricionais e dados maiores fenólicos totais, taninos, antocianinas e capacidade antioxidante em relação ao controle. Eles mantiveram o conteúdo fenólico total e aumentaram a capacidade antioxidante por 45 dias, principalmente devido a 50 g ou 75 g de farinha de sorgo. Esses resultados indicam que a farinha de sorgo integral é uma opção para a indústria de alimentos em busca de experimentar novos produtos com benefícios à saúde.","PeriodicalId":34859,"journal":{"name":"Revista Brasileira de Milho e Sorgo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46828930","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

HISTORY, DEVELOPMENT AND MARKET OF MAIZE CULTIVARS WITH LOW SEED COST IN BRAZIL 巴西低成本玉米品种的历史、发展和市场

Revista Brasileira de Milho e Sorgo Pub Date : 2022-03-16 DOI: 10.18512/rbms2022vol21e1236

M. Paterniani, Sylmar Denucci

{"title":"HISTORY, DEVELOPMENT AND MARKET OF MAIZE CULTIVARS WITH LOW SEED COST IN BRAZIL","authors":"M. Paterniani, Sylmar Denucci","doi":"10.18512/rbms2022vol21e1236","DOIUrl":"https://doi.org/10.18512/rbms2022vol21e1236","url":null,"abstract":"– Maize is one of the cereal crops most produced globally. It constitutes one species of most economic interest and provides multiple products with applications in diverse sectors, from animal feed to industrial products and even human food. More and more companies that represent this segment release genetically modified maize hybrids to ensure return on investment, decreasing the supply of conventional (non-transgenic) cultivars available on the market. Seed is one of the main components of the cost of maize production. Thus, farmers that obtain lower yields cannot afford to pay the relatively high costs of the high technology hybrid seeds or improve their production system, but it is possible to obtain satisfactory results through lower seed investments. Therefore, intervarietal hybrids may represent an alternative for meeting the needs of small and medium-sized farmers, with fewer resources for investments in inputs and seeds, and for supplying varieties that meet the needs of the small maize grower. This review presents a history of conventional maize breeding in Brazil and describes the main maize cultivars with low-cost seeds developed by public R&D companies, mainly focusing on the Instituto Agronômico (IAC) as an option for small and medium-sized maize growers in Brazil.","PeriodicalId":34859,"journal":{"name":"Revista Brasileira de Milho e Sorgo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41557040","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

GENETICALLY MODIFIED CORN IN BRAZIL: HISTORICAL, RESULTS AND PERSPECTIVES 巴西转基因玉米的历史、结果与展望

Revista Brasileira de Milho e Sorgo Pub Date : 2022-03-16 DOI: 10.18512/rbms2022vol21e1238

I. Schuster, Ricardo Augusto DE OLIVEIRA RODRIGUES, Edimilson Linares

引用次数: 0

ECONOMIC WEED THRESHOLD OF MARANTA SOBOLIFERA PLANTS IN OFF-SEASON CORN 玉米淡季黑穗病植株的经济杂草阈值

Revista Brasileira de Milho e Sorgo Pub Date : 2022-03-15 DOI: 10.18512/rbms2021vol20e1222

Vitor Gustavo Kuhn, Silvio Douglas Ferreira, Alysson Oliveira De Carvalho, E. Fey, Neumárcio Vilanova DA COSTA

{"title":"ECONOMIC WEED THRESHOLD OF MARANTA SOBOLIFERA PLANTS IN OFF-SEASON CORN","authors":"Vitor Gustavo Kuhn, Silvio Douglas Ferreira, Alysson Oliveira De Carvalho, E. Fey, Neumárcio Vilanova DA COSTA","doi":"10.18512/rbms2021vol20e1222","DOIUrl":"https://doi.org/10.18512/rbms2021vol20e1222","url":null,"abstract":"Maranta sobolifera (Caetê) has tolerance to chemical management and has spread consistently on the agricultural areas of the western region of Paraná over the years. However, there is little information about its potential to interfere with the main agricultural crops. This study aimed to estimate the economic weed threshold (EWT) of M. sobolifera plants in commercial areas of production of off-season corn. There were losses in grain yield of up to 303.7 kg plant-1 of M. sobolifera. Considering an acceptable loss in grain yield of 614.05 kg ha-1, EWT estimates varied from 2.0 to 41.2 plants m-2 of M. sobolifera. In practice, these data can be used in no-till areas, where complementary control is necessary at the crop post-emergence (V4-V6), after desiccation of the area, to maintain weed density at tolerable levels until the end of the cycle. In addition, factors such as the use of less competitive hybrids, obtaining the maximum productive potential of the crop, increasing the value of the harvested product and the efficiency of chemical management (desiccation) and a reduction in the cost of control contribute to the reduction of the EWT and make the adoption of management practices of M. sobolifera more profitable in off-season corn. ","PeriodicalId":34859,"journal":{"name":"Revista Brasileira de Milho e Sorgo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43252475","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

SOWING ARRANGEMENTS OF SORGHUM WITH BRACHIARIA FOR FORAGE PRODUCTION AND SOIL COVER 高粱带臂属牧草生产和土壤覆盖的播种安排

Revista Brasileira de Milho e Sorgo Pub Date : 2022-02-23 DOI: 10.18512/rbms2021vol20e1221

Célia Das Eiras Ludovina DGDGE MELO, Francisco Cláudio LOPES DE FREITAS, Antonio DA Piedade DE MELO, Edimar Antonio CAMPOS COSTA, L. D. Pimentel

{"title":"SOWING ARRANGEMENTS OF SORGHUM WITH BRACHIARIA FOR FORAGE PRODUCTION AND SOIL COVER","authors":"Célia Das Eiras Ludovina DGDGE MELO, Francisco Cláudio LOPES DE FREITAS, Antonio DA Piedade DE MELO, Edimar Antonio CAMPOS COSTA, L. D. Pimentel","doi":"10.18512/rbms2021vol20e1221","DOIUrl":"https://doi.org/10.18512/rbms2021vol20e1221","url":null,"abstract":"The objective of this study was to evaluate the dry matter content and morphological parameters of sorghum and brachiaria (signalgrass, specifically palisade grass) grown simultaneously for forage production, along with soil cover formation outside of the primary crop season. The treatments were in a randomized block design consisting of three different sowing arrangements: sorghum + two rows of brachiaria between sorghum rows, sorghum + two rows of brachiaria (one in the row + another between the sorghum rows), and sorghum with brachiaria broadcast; as well as sorghum and brachiaria in monoculture. In the first cycle, the dry matter yield of sorghum was higher, approximately 12.01 t ha-1, in the arrangement of sorghum alone. However, the highest total dry matter yield was obtained in the arrangement of sorghum with broadcast brachiaria, with 11.01 t ha-1 for sorghum and 3.75 t ha-1 for the brachiaria. In the second cycle, soil cover was greatest in the brachiaria monoculture and the arrangement of sorghum with broadcast brachiaria, at 95% and 86%, respectively. Therefore, intending to produce forage sorghum and form adequate soil cover by brachiaria, the sorghum intercropping with brachiaria in broadcast sowing is a promising strategy.","PeriodicalId":34859,"journal":{"name":"Revista Brasileira de Milho e Sorgo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47929362","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

NITROGEN SOURCE DOES NOT CHANGE THE MORPHOPHYSIOLOGICAL CHARACTERISTICS OF MAIZE ON A CLAY SOIL 氮源不会改变粘土上玉米的形态生理特性

Revista Brasileira de Milho e Sorgo Pub Date : 2022-02-18 DOI: 10.18512/rbms2021vol20e1220

Rafael André Mergener, L. Sangoi, A. Coelho

引用次数: 0