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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
06/06/1995 |
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Data da última atualização: |
18/03/2009 |
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Autoria: |
LIMA, W. de P. |
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Título: |
Hydrologic behavior of two small watersheds in West Virginia undergoing natural reforestation. |
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Ano de publicação: |
1971 |
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Fonte/Imprenta: |
1971. |
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Páginas: |
144 f. |
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Idioma: |
Inglês |
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Notas: |
Thesis (Master of Science) - The Ohio State University. |
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Conteúdo: |
Thirteen years of precipitacion and stream flow data from two water sheds from timber and Watershed Laboratory, in Parsons, West Virginia, were analyzed to determine the effectos of natural reforestation of former pastured and cultivated lands on streamflow.The watersheds were incorporated into the Monongahela National Forest about the year of 1940, and since then approximately 70 percent of their areas have reverted naturally to mexed hardwood forest cover.Streamflow measurement, hower, did not start until the year of 1957, and, therefore, the analyses in the present study do not encompass the entire period of forest development. Results of the analyses show an indication of reduction in the annual and dormant season streamflow from both watersheds between the period, 1957-1971, and all of the indicated annual reduction ocurred primarily in the dormant season period. This pattern of streamflow reduction would be explained in terms of an increase in soil water utilization by the increased forest cover, with would them require more of the dormant season precipitation to replenish the soil moisture deficit created during growing season before any surplus water was available for streamflow. None of indicated trends of streamflow with time, however, were statistically significant. Based on the findings of similar, earlier studies, and also on the results of the survey of the vegetation development in the study watersheds, it was believed that the major part of the change in streamflow had already occurred before 1957, that is, during the periods of initial and more rapid change in the cover conditions of the area. This assumption, coupled with the relatively short period of streamflow meassurement considered in the analysis, would it very difficult to significantly detect a possible change in streamflow. The Thornth waite water balance computed for the study watersheds showed that during the period of study, from an average annual precipitation of 58.4 inches, the mean annual evapotranspiration accounted for 24.3 inches, giving an annual water of 34.1 inches, which represents the water available for streamflow. From the total, annual streamflow yielded by study watersheds, 75 percent accurred in dormant season period, and 25 percent in the growing season period. During the interval, 1957-1971, therefore low flow regime of the study watersheds was practically unaffected, and high flow regime showed a slight, non-significant, downward trend. MenosThirteen years of precipitacion and stream flow data from two water sheds from timber and Watershed Laboratory, in Parsons, West Virginia, were analyzed to determine the effectos of natural reforestation of former pastured and cultivated lands on streamflow.The watersheds were incorporated into the Monongahela National Forest about the year of 1940, and since then approximately 70 percent of their areas have reverted naturally to mexed hardwood forest cover.Streamflow measurement, hower, did not start until the year of 1957, and, therefore, the analyses in the present study do not encompass the entire period of forest development. Results of the analyses show an indication of reduction in the annual and dormant season streamflow from both watersheds between the period, 1957-1971, and all of the indicated annual reduction ocurred primarily in the dormant season period. This pattern of streamflow reduction would be explained in terms of an increase in soil water utilization by the increased forest cover, with would them require more of the dormant season precipitation to replenish the soil moisture deficit created during growing season before any surplus water was available for streamflow. None of indicated trends of streamflow with time, however, were statistically significant. Based on the findings of similar, earlier studies, and also on the results of the survey of the vegetation development in the study watersheds, it was believed that the major part of the change in stre... Mostrar Tudo |
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Palavras-Chave: |
Comportamento hidrológico; Riparian vegetation. |
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Thesagro: |
Mata Ciliar; Regeneração Natural. |
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Thesaurus Nal: |
natural regeneration; watersheds. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03092nam a2200205 a 4500
001 1304979
005 2009-03-18
008 1971 bl uuuu m 00u1 u #d
100 1 $aLIMA, W. de P.
245 $aHydrologic behavior of two small watersheds in West Virginia undergoing natural reforestation.
260 $a1971.$c1971
300 $a144 f.
500 $aThesis (Master of Science) - The Ohio State University.
520 $aThirteen years of precipitacion and stream flow data from two water sheds from timber and Watershed Laboratory, in Parsons, West Virginia, were analyzed to determine the effectos of natural reforestation of former pastured and cultivated lands on streamflow.The watersheds were incorporated into the Monongahela National Forest about the year of 1940, and since then approximately 70 percent of their areas have reverted naturally to mexed hardwood forest cover.Streamflow measurement, hower, did not start until the year of 1957, and, therefore, the analyses in the present study do not encompass the entire period of forest development. Results of the analyses show an indication of reduction in the annual and dormant season streamflow from both watersheds between the period, 1957-1971, and all of the indicated annual reduction ocurred primarily in the dormant season period. This pattern of streamflow reduction would be explained in terms of an increase in soil water utilization by the increased forest cover, with would them require more of the dormant season precipitation to replenish the soil moisture deficit created during growing season before any surplus water was available for streamflow. None of indicated trends of streamflow with time, however, were statistically significant. Based on the findings of similar, earlier studies, and also on the results of the survey of the vegetation development in the study watersheds, it was believed that the major part of the change in streamflow had already occurred before 1957, that is, during the periods of initial and more rapid change in the cover conditions of the area. This assumption, coupled with the relatively short period of streamflow meassurement considered in the analysis, would it very difficult to significantly detect a possible change in streamflow. The Thornth waite water balance computed for the study watersheds showed that during the period of study, from an average annual precipitation of 58.4 inches, the mean annual evapotranspiration accounted for 24.3 inches, giving an annual water of 34.1 inches, which represents the water available for streamflow. From the total, annual streamflow yielded by study watersheds, 75 percent accurred in dormant season period, and 25 percent in the growing season period. During the interval, 1957-1971, therefore low flow regime of the study watersheds was practically unaffected, and high flow regime showed a slight, non-significant, downward trend.
650 $anatural regeneration
650 $awatersheds
650 $aMata Ciliar
650 $aRegeneração Natural
653 $aComportamento hidrológico
653 $aRiparian vegetation
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Registro original: |
Embrapa Florestas (CNPF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
05/12/2022 |
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Data da última atualização: |
05/12/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
VON PINHO, R.; SILVA, E. V. V.; OLIVEIRA, T. L. de; SOUZA, V. F. de; MENEZES, C. B. de. |
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Afiliação: |
RENZO VON PINHO, Universidade Federal de Lavras; ERIC VINICIUS VIEIRA SILVA, Universidade Federal de Lavras; THIAGO LUCAS DE OLIVEIRA, Universidade Federal de Lavras; VANDER FILLIPE DE SOUZA, Universidade Federal de Lavras; CICERO BESERRA DE MENEZES, CNPMS. |
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Título: |
Breeding sorghum for grain, forage and bioenergy in Brazil. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Revista Brasileira de Milho e Sorgo, v. 21, e1275, 2022. |
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DOI: |
https://doi.org/10.18512/rbms2022v21e1275 |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT - Sorghum is a versatile crop used for energy production, human and animal feedings, and raw material for industry. The grain sorghum is the fifth most important cereal worldwide, and Brazil is one of the top 10 sorghum producers. In the last 40 years, the sorghum grain yield in Brazil has increased to 32.70 kg ha-1 year -1. Although this clear evolution, much remains to be done, and sorghum breeders in Brazil still face several challenges. This review discusses the main characteristics of sorghum genetics and breeding, aiming for sorghum improvement for food, fodder, feed, and fuel uses. Herein will be highlighted essential topics related to the genetic control of the main interest traits; conventional sorghum breeding; the development of sorghum lines and hybrids; the use of male-sterility in sorghum breeding; the implication of genotypes-by-environments interaction in sorghum, the use of genome-wide association studies, and genomic prediction to maximize the efficiency of the sorghum breeding programs. RESUMO - O sorgo é uma cultura bastante versátil, sendo usada para a produção de energia, alimentação humana e animal, assim como matéria-prima para a indústria. Globalmente, o sorgo granífero é o quinto cereal de maior importância, e o Brasil é um dos dez maiores produtores de sorgo. Nos últimos 40 anos, a produtividade nacional de grãos de sorgo aumentou a uma taxa de 32,70 kg ha-1 ano-1. Embora essa clara evolução, ainda se tem muito a ser feito e diversos são os desafios enfrentados pelos melhoristas de sorgo no Brasil. Esta revisão discute os principais pontos da genética e melhoramento do sorgo, visando a produção de alimentos, forragem, ração e combustível. Serão destacados tópicos relacionados ao controle genético das principais características de interesse em sorgo; melhoramento convencional de sorgo; desenvolvimento de linhagens e híbridos em sorgo; o uso da machoesterilidade no melhoramento de sorgo; implicações da interação genótipos por ambientes; aplicação da associação genômica ampla e predição genômica para maximizar a eficiência dos programas de melhoramento de sorgo. MenosABSTRACT - Sorghum is a versatile crop used for energy production, human and animal feedings, and raw material for industry. The grain sorghum is the fifth most important cereal worldwide, and Brazil is one of the top 10 sorghum producers. In the last 40 years, the sorghum grain yield in Brazil has increased to 32.70 kg ha-1 year -1. Although this clear evolution, much remains to be done, and sorghum breeders in Brazil still face several challenges. This review discusses the main characteristics of sorghum genetics and breeding, aiming for sorghum improvement for food, fodder, feed, and fuel uses. Herein will be highlighted essential topics related to the genetic control of the main interest traits; conventional sorghum breeding; the development of sorghum lines and hybrids; the use of male-sterility in sorghum breeding; the implication of genotypes-by-environments interaction in sorghum, the use of genome-wide association studies, and genomic prediction to maximize the efficiency of the sorghum breeding programs. RESUMO - O sorgo é uma cultura bastante versátil, sendo usada para a produção de energia, alimentação humana e animal, assim como matéria-prima para a indústria. Globalmente, o sorgo granífero é o quinto cereal de maior importância, e o Brasil é um dos dez maiores produtores de sorgo. Nos últimos 40 anos, a produtividade nacional de grãos de sorgo aumentou a uma taxa de 32,70 kg ha-1 ano-1. Embora essa clara evolução, ainda se tem muito a ser feito e diversos são o... Mostrar Tudo |
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Palavras-Chave: |
Estresse abiótico; Estresse biótico; Interação genótipo por ambiente; Macho-esterilidade; Predição genômica. |
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Thesagro: |
Sorghum Bicolor. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1149191/1/Breeding-sorghum-for-grain-forage-and-bioenergy-in-Brazil.pdf
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Marc: |
LEADER 02956naa a2200253 a 4500
001 2149191
005 2022-12-05
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.18512/rbms2022v21e1275$2DOI
100 1 $aVON PINHO, R.
245 $aBreeding sorghum for grain, forage and bioenergy in Brazil.$h[electronic resource]
260 $c2022
520 $aABSTRACT - Sorghum is a versatile crop used for energy production, human and animal feedings, and raw material for industry. The grain sorghum is the fifth most important cereal worldwide, and Brazil is one of the top 10 sorghum producers. In the last 40 years, the sorghum grain yield in Brazil has increased to 32.70 kg ha-1 year -1. Although this clear evolution, much remains to be done, and sorghum breeders in Brazil still face several challenges. This review discusses the main characteristics of sorghum genetics and breeding, aiming for sorghum improvement for food, fodder, feed, and fuel uses. Herein will be highlighted essential topics related to the genetic control of the main interest traits; conventional sorghum breeding; the development of sorghum lines and hybrids; the use of male-sterility in sorghum breeding; the implication of genotypes-by-environments interaction in sorghum, the use of genome-wide association studies, and genomic prediction to maximize the efficiency of the sorghum breeding programs. RESUMO - O sorgo é uma cultura bastante versátil, sendo usada para a produção de energia, alimentação humana e animal, assim como matéria-prima para a indústria. Globalmente, o sorgo granífero é o quinto cereal de maior importância, e o Brasil é um dos dez maiores produtores de sorgo. Nos últimos 40 anos, a produtividade nacional de grãos de sorgo aumentou a uma taxa de 32,70 kg ha-1 ano-1. Embora essa clara evolução, ainda se tem muito a ser feito e diversos são os desafios enfrentados pelos melhoristas de sorgo no Brasil. Esta revisão discute os principais pontos da genética e melhoramento do sorgo, visando a produção de alimentos, forragem, ração e combustível. Serão destacados tópicos relacionados ao controle genético das principais características de interesse em sorgo; melhoramento convencional de sorgo; desenvolvimento de linhagens e híbridos em sorgo; o uso da machoesterilidade no melhoramento de sorgo; implicações da interação genótipos por ambientes; aplicação da associação genômica ampla e predição genômica para maximizar a eficiência dos programas de melhoramento de sorgo.
650 $aSorghum Bicolor
653 $aEstresse abiótico
653 $aEstresse biótico
653 $aInteração genótipo por ambiente
653 $aMacho-esterilidade
653 $aPredição genômica
700 1 $aSILVA, E. V. V.
700 1 $aOLIVEIRA, T. L. de
700 1 $aSOUZA, V. F. de
700 1 $aMENEZES, C. B. de
773 $tRevista Brasileira de Milho e Sorgo$gv. 21, e1275, 2022.
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