Crop Evolution
Mostrando 1-12 de 55 artigos, teses e dissertações.
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1. Superiority index based on target traits reveals the evolution of Brazilian soybean cultivars over last half-century
ABSTRACT The objective of this work was to assess the breeding influences in different agronomic and physiological traits in Brazilian soybean cultivars, released between 1965 and 2011, to identify traits associated with modern cultivars. A total of 29 cultivars were evaluated in two locations in the 2016/17 crop season. Genotype selection based on agronomic
Rev. Ceres. Publicado em: 2021-08
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2. Analysis of the agricultural productivity of the sugarcane crop in regions of new agricultural expansions of sugarcane
Resumo O lançamento dos veículos bicombustíveis, no ano de 2003, propiciou a retomada da importância da produção de etanol e, consequentemente, numa nova fase de expansão do cultivo de cana-de-açúcar no Brasil. Embora o aumento da área de produção e da quantidade produzida de cana-de-açúcar mereça destaque no agronegócio brasileiro, o mesmo
Gest. Prod.. Publicado em: 12/08/2019
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3. Spatial and temporal evolution of imidazolinone-resitant red rice in 'Clearfield' rice cultivations
Resumo: O objetivo deste trabalho foi avaliar a distribuição de populações de arroz-vermelho (Oryza sativa) resistente às imidazolinonas (R-IMI), a frequência dos alelos que conferem resistência às IMI, e a adoção de práticas agronômicas aplicadas ao controle do arroz-vermelho, em estações de cultivo e regiões produtoras de arroz do Estado do
Pesq. agropec. bras.. Publicado em: 27/06/2019
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4. Residual herbicides in Roundup Ready soybean: A case study in multiple years and locations with Ipomoea triloba
RESUMO A evolução de plantas daninhas resistentes e tolerantes ao glyphosate tem causado mudanças no manejo de plantas daninhas em todo o mundo. Herbicidas residuais são cruciais para o manejo dessas plantas daninhas, porém a taxa de adoção dessas ferramentas ainda é significativamente baixa no Brasil. Nesta pesquisa, Ipomoea triloba tolerante ao gly
Ciênc. agrotec.. Publicado em: 03/06/2019
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5. Comparison of the efficacy of QoI fungicides, alone or in mixture with triazoles, in Asian soybean rust control, 2016/17 growing season
RESUMO Tem sido relatada a evolução da redução da sensibilidade de Phakopsora pachyrhizi às misturas dos três mecanismos de ação sítio-específicos (IDMs, IQes e ISDHs) usadas no seu controle. O objetivo desse trabalho foi quantificar a contribuição atual dos IQes, isolados ou em mistura com triazpois, no controle da ferrugem asiática da soja. Em
Summa phytopathol.. Publicado em: 2019-03
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6. Petrography, geochemistry and geochronology of the potassic granitoids of the Rio Itacambiruçu Supersuite: implications for the Meso- to Neoarchean evolution of the Itacambira-Monte Azul block
ABSTRACT: In the Itacambira-Monte Azul block (BIMA) the Archean rocks are represented by tonalite-trondhjemite-granodiorite (TTGs) of the Porteirinha Complex and by potassic granitoids of the Rio Itacambiruçu Suite that crop out at the Pedra do Urubu (PUp), Rio Gorutuba (RGp), Barrocão (BAp) and Lagoa Nova (LNp) plutons. This work presents new data for the
Braz. J. Geol.. Publicado em: 2018-01
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7. Seed vigor testing: an overview of the past, present and future perspective
The assessment of seed vigor has many important implications to the seed industry as a basic monitoring of seed physiological potential during different phases of seed production and a support for strategic decisions regarding the selection of high quality seedlots to meet the consumer demand. The potential attributes of seed vigor as a fundamental physiolog
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-08
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8. The genetic base of Brazilian soybean cultivars: evolution over time and breeding implications
Genetic diversity is essential for crop breeding and one way to estimate it is through the concept of genetic base, which can be defined as the number of ancestors and their relative genetic contributions (RGC) to each cultivar. The RGC can be estimated through the coefficient of parentage between the ancestors and cultivars. Previous studies determined that
Genet. Mol. Biol.. Publicado em: 25/10/2013
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9. MODELING OF WATER, SEDIMENT AND PHOSPHORUS LOADS IN AN AGRICULTURAL WATERSHED IN SOUTHERN BRAZIL / MODELAGEM DO ESCOAMENTO, DA PRODUÇÃO DE SEDIMENTOS E DA TRANSFERÊNCIA DE FÓSFORO EM BACIA RURAL NO SUL DO BRASIL
Areas under intensive tobacco crop cultivation have been impacting the water balance and increasing soil erosion in Southern Brazil. Application of large amounts of mineral fertilizers, higher than the tobacco requirement, contributes to excessive phosphorus loads in soil and water bodies. The assessment of potential environmental impacts due to changes in l
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/03/2011
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10. Cultivo fora de época da videira BRS Clara sob cobertura plástica
The system of production of grapes under plastic cover is an alternative to reduce pesticide treatments in table grapes in Northern Paraná, once that the hot and humid climate favors the occurrence of fungal diseases, especially during the out of season crop. The aim of this study was to evaluate the ripening evolution, the physico-chemical characteristics
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/02/2011
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11. Aspectos relacionados ao manejo da adubação fosfatada em solos do Cerrado.
ABSTRACT: The management of phosphate fertilization in the Cerrado soils has been studied for almost 40 years and represents an extremely important technology towards to a successfull agricultural exploration of the region. However, many aspects related to soil phosphorus dynamic, availability, and its use efficiency by crops remain not well understood, and
Planaltina. Publicado em: 2011
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12. CRESCIMENTO, DESENVOLVIMENTO E PRODUTIVIDADE DE CANA-DEAÇÚCAR EM CULTIVO DE CANA-PLANTA E CANA-SOCA DE UM ANO SANTA MARIA, RS / SUGARCANE GROWTH, DEVELOPMENT AND YIELD IN CROPS PLANT AND RATOONING OF ONE YEAR IN SANTA MARIA, RS
The objectives of this Dissertation were to estimate the base temperature of leaf appearance, determine the phyllochron, leaf area, tillering, leaves number on stem elongation and determine the crop yield of three clones of sugarcane in crops plant and ratooning of one year. A field experiment was conducted during the years 2008 at 2010 at the experimental a
Publicado em: 2011