Upland Rice
Mostrando 13-24 de 72 artigos, teses e dissertações.
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13. Desempenho de famílias s0:2 da população CNA9 do programa de melhoramento de arroz de terras altas para a agricultura familiar / Performance of S0:2 families from CNA9 upland rice breeding program population targeted for family farming
O arroz (Oryza sativa) destaca-se no Brasil por sua importância econômica e, sobretudo social, sendo uma importante fonte de proteína e energia. Selecionar linhagens de arroz de terras altas adaptadas a ambientes diversos é de extrema importância para o sucesso dos programas de melhoramento direcionados para os agricultores familiares do estado de Goiá
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/03/2012
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14. Silicon reduces brown spot severity and grain discoloration on several rice genotypes
This study aimed to investigate the effect of silicon (Si) on the reduction of brown spot severity (BSS), caused by Bipolaris oryzae, and grain discoloration in several rice genotypes. An experiment was conducted in a greenhouse where eight genotypes were evaluated for their response to Si rates and decrease on BSS. The relationship between Si rates and BSS
Trop. plant pathol.. Publicado em: 2012-12
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15. BRSGO Serra Dourada: upland rice cultivar for family agriculture in the state of Goiás
The release of rice cultivar BRSGO Serra Dourada was based on favorable results from evaluation trials and units of observation implemented in farmers' properties. These farmers preferred the new cultivar, mainly due to its grain quality, resistance to lodging and blast (Magnaporthe grisea) and good productive potential.
Crop Breed. Appl. Biotechnol.. Publicado em: 2012-09
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16. Resposta do arroz de terras altas a diferentes doses de carvão vegetal: desenvolvimento da planta e deficiência hídrica / Resposta do arroz de terras altas a diferentes doses de carvão vegetal: desenvolvimento da planta e deficiência hídrica / Response of upland rice to different doses of charcoal, plant development and water deficit / Response of upland rice to different doses of charcoal, plant development and water deficit
The average national rice yield was 11,3 million tones, with a harvested area of about 2,7 million hectares (IBGE 2010). Part of this comes from upland production systems in savannas that have high acidity, low fertility, with low phosphorus and potassium levels, low cation exchange capacity and high aluminum saturation. Upland rice in the Brazilian savannas
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/02/2011
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17. Resposta do arroz de terras altas a diferentes doses de carvão vegetal: desenvolvimento da planta e deficiência hídrica / Resposta do arroz de terras altas a diferentes doses de carvão vegetal: desenvolvimento da planta e deficiência hídrica / Response of upland rice to different doses of charcoal, plant development and water deficit / Response of upland rice to different doses of charcoal, plant development and water deficit
A safra nacional de arroz foi de 11,3 milhões de toneladas, com uma área colhida de aproximadamente 2,7 milhões hectares (IBGE 2010). Parte desta produção é cultivada em sistema de sequeiro sob solos de cerrados que é caracterizado por apresentar elevada acidez e baixa fertilidade natural, com baixos teores de fósforo, potássio, capacidade de troca
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/02/2011
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18. Adubação boratada na cultura do arroz em solos de cerrado de baixa fertilidade / Adubation of boro in culture of rice in soils of savanna of low fertility
O custo de produção de áreas novas no cerrado apresenta valores elevados devido á maior quantidade de operações agrícolas, quando comparado a lavouras convencionais. Os solos do cerrado apresentam baixa fertilidade natural e exigem grandes quantidades de calcário para sua correção, aumentando significamente o custo de produção. O objetivo deste t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/01/2011
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19. Agro-morphological characterization of upland rice accessions
The agro-morphological characterization is fundamental in order to provide information for plant breeding programs. The aim of the present study was to characterize 146 accessions of upland rice (Oryza sativa L.), based on qualitative and quantitative agro-morphological descriptors. The experiment was conducted in Recife, state of Pernambuco, Brazil, using a
Scientia Agricola. Publicado em: 2011-12
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20. Environmental group identification for upland rice production in central Brazil
Upland rice (Oryza sativa L.) production is basically concentrated in four central Brazilian States, Mato Grosso, Goiás, Rondônia and Tocantins. To reduce the genotype and environment (G × E) interactions, the classification of environment groups was proposed. The goal of this study explores possibilities to adjust the upland rice regional breeding system
Scientia Agricola. Publicado em: 2011-10
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21. Growth components and zinc recovery efficiency of upland rice genotypes.
The objective of this work was to evaluate Zn use efficiency by upland rice genotypes. The experiment was carried out in a greenhouse, with ten upland rice genotypes grown on an Oxisol (Typic Hapludox) with no application, and with application of 10 mg kg-1 Zn, applied as zinc sulfate. Shoot dry weight, grain yield, Zn harvest index, Zn concentration in shoo
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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22. Root growth of upland rice genotypes as influenced by nitrogen fertilization.
The objective of this study was to evaluate influence of nitrogen fertilization on root growth of twenty upland rice genotypes.
WORLD CONGRESS OF SOIL SCIENCE. Publicado em: 2011
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23. Growth components and zinc recovery efficiency of upland rice genotypes.
The objective of this work was to evaluate Zn use efficiency by upland rice genotypes. The experiment was carried out in a greenhouse, with ten upland rice genotypes grown on an Oxisol (Typic Hapludox) with no application, and with application of 10 mg kg-1 Zn, applied as zinc sulfate. Shoot dry weight, grain yield, Zn harvest index, Zn concentration in shoo
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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24. Optimal nitrogen fertilization timing for upland rice.
The objective of this study was to determine optimal timing of N fertilization on grain yield and yield components of upland rice.
WORLD CONGRESS OF SOIL SCIENCE. Publicado em: 2011