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Registro Completo |
Biblioteca(s): |
Embrapa Pantanal. |
Data corrente: |
27/06/1996 |
Data da última atualização: |
03/04/2017 |
Autoria: |
LYLES, L. |
Título: |
Basic wind erosion processes. |
Ano de publicação: |
1988 |
Fonte/Imprenta: |
Agriculture Ecosystems Environment, v.22/23, p.91-101, 1988. |
Idioma: |
Inglês |
Conteúdo: |
Basic wind erosion processes are discussed under the major headings of soil particle dynamics, particle flow rates, and principles and general strategies of control. Particle dynamics are described in terms of suspension, saltation, surface creep, abrasion, sorting and threshold conditions. Soil particle flow rates are divided between the all-erodible-particle case and the more common but more complex case ox mixtures of erodible particles and non-erodible elements. Specific principles of wind erosion control are identified. A wind erosion equation, which estimates potential erosion from a particular field and the conditions necessary to reduce potential erosion to tolerable amounts are discussed. |
Palavras-Chave: |
Control; Controle; Erosion. |
Thesagro: |
Erosão; Solo; Vento. |
Thesaurus Nal: |
soil; wind. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01197naa a2200217 a 4500 001 1788008 005 2017-04-03 008 1988 bl --- 0-- u #d 100 1 $aLYLES, L. 245 $aBasic wind erosion processes. 260 $c1988 520 $aBasic wind erosion processes are discussed under the major headings of soil particle dynamics, particle flow rates, and principles and general strategies of control. Particle dynamics are described in terms of suspension, saltation, surface creep, abrasion, sorting and threshold conditions. Soil particle flow rates are divided between the all-erodible-particle case and the more common but more complex case ox mixtures of erodible particles and non-erodible elements. Specific principles of wind erosion control are identified. A wind erosion equation, which estimates potential erosion from a particular field and the conditions necessary to reduce potential erosion to tolerable amounts are discussed. 650 $asoil 650 $awind 650 $aErosão 650 $aSolo 650 $aVento 653 $aControl 653 $aControle 653 $aErosion 773 $tAgriculture Ecosystems Environment$gv.22/23, p.91-101, 1988.
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Embrapa Pantanal (CPAP) |
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Registro Completo
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
19/12/2023 |
Data da última atualização: |
03/04/2024 |
Autoria: |
COELHO, W. A. A.; OLIVEIRAM G. M.; SANTOS, C. B. dos; SILVA, W. O. da; BARROS, J. R. A.; SIMOES, W. L.; ANTONIO, R. P.; ANGELOTTI, F. |
Afiliação: |
WINNGLYDE SHEKSP SOARES COELHO, UPE; GILMARA MOREIRA OLIVEIRA, Bolsista FACEPE; CAMILA BARBOSA DOS SANTOS, UPE; WESLLEY OLIVEIRA DA SILVA, UPE; JULIANE RAFAELE ALVES BARROS, Bolsista FACEPE; WELSON LIMA SIMOES, CPATSA; RAFAELA PRISCILA ANTONIO, CPATSA; FRANCISLENE ANGELOTTI, CPATSA. |
Título: |
The combination of abiotic stresses influences the physiological responses and production of Macroptilium genotypes. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Plant Physiology Reports, Dec. 2023. |
DOI: |
https://doi.org/10.1007/s40502-023-00769-x |
Idioma: |
Inglês |
Notas: |
On-line. |
Conteúdo: |
Combined abiotic stress may harm forage yield due to the direct effects on physiological and production processes. There fore, this study assessed the development of Macroptilium genotypes native to the Brazilian semi-arid region under the combination of water deficit and temperature in crop seasons. The experiments were conducted in 2021 and 2022, using five Macroptilium genotypes and combined water and temperature stress, in factorial 5 × 4 × 2 with five genotypes, four water availabilities (25, 50, 75, and 100% field capacity) and crop seasons (Season 1–high temperature and Season 2–temperature moderate) with four replications. Physiological analyses were performed 30 days after planting, aided by a portable infrared gas analyzer and Chlorophyllometer. Next, cutoffs were made for production assessments (leaf and shoot dry mass, leaf shoot dry mass content, plant dry mass, forage accumulation rate, and water use efficiency). The data were subjected to analysis of variance by the Scott-Knott test and regression for water availability. The interplay between water availability and crop season temperatures exerted a notable influence on the physiological, biometric, and production characteristics of Macroptilium genotypes. Opting for the warmest season for planting proved to be advantageous in enhancing the yield of the genotypes under scrutiny, thereby elevating water use efficiency. Notably, the A59 and L34 genotypes exhibited superior plant dry mass and forage accumulation when exposed to higher temperatures and less than 100% water availability. These findings suggest that A59 and L34 may hold promise as prospective cultivars of Macroptilium sp. with a heightened tolerance to combined abiotic stresses. MenosCombined abiotic stress may harm forage yield due to the direct effects on physiological and production processes. There fore, this study assessed the development of Macroptilium genotypes native to the Brazilian semi-arid region under the combination of water deficit and temperature in crop seasons. The experiments were conducted in 2021 and 2022, using five Macroptilium genotypes and combined water and temperature stress, in factorial 5 × 4 × 2 with five genotypes, four water availabilities (25, 50, 75, and 100% field capacity) and crop seasons (Season 1–high temperature and Season 2–temperature moderate) with four replications. Physiological analyses were performed 30 days after planting, aided by a portable infrared gas analyzer and Chlorophyllometer. Next, cutoffs were made for production assessments (leaf and shoot dry mass, leaf shoot dry mass content, plant dry mass, forage accumulation rate, and water use efficiency). The data were subjected to analysis of variance by the Scott-Knott test and regression for water availability. The interplay between water availability and crop season temperatures exerted a notable influence on the physiological, biometric, and production characteristics of Macroptilium genotypes. Opting for the warmest season for planting proved to be advantageous in enhancing the yield of the genotypes under scrutiny, thereby elevating water use efficiency. Notably, the A59 and L34 genotypes exhibited superior plant dry mass and forage accumulation ... Mostrar Tudo |
Palavras-Chave: |
Déficit hídrico; Estresses abióticos; Fisiologia das culturas; Plantas nativas. |
Thesagro: |
Espécie Nativa; Fisiologia; Genótipo; Leguminosa Forrageira; Mudança Climática; Temperatura. |
Thesaurus NAL: |
Abiotic stress; Climate change; Forage legumes; Macroptilium. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1160014/1/The-combination-of-abiotic-stresses-influences-the-physiological-responses-and-production-of-Macroptilium-genotypes..pdf
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Marc: |
LEADER 02904naa a2200397 a 4500 001 2160014 005 2024-04-03 008 2023 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1007/s40502-023-00769-x$2DOI 100 1 $aCOELHO, W. A. A. 245 $aThe combination of abiotic stresses influences the physiological responses and production of Macroptilium genotypes.$h[electronic resource] 260 $c2023 500 $aOn-line. 520 $aCombined abiotic stress may harm forage yield due to the direct effects on physiological and production processes. There fore, this study assessed the development of Macroptilium genotypes native to the Brazilian semi-arid region under the combination of water deficit and temperature in crop seasons. The experiments were conducted in 2021 and 2022, using five Macroptilium genotypes and combined water and temperature stress, in factorial 5 × 4 × 2 with five genotypes, four water availabilities (25, 50, 75, and 100% field capacity) and crop seasons (Season 1–high temperature and Season 2–temperature moderate) with four replications. Physiological analyses were performed 30 days after planting, aided by a portable infrared gas analyzer and Chlorophyllometer. Next, cutoffs were made for production assessments (leaf and shoot dry mass, leaf shoot dry mass content, plant dry mass, forage accumulation rate, and water use efficiency). The data were subjected to analysis of variance by the Scott-Knott test and regression for water availability. The interplay between water availability and crop season temperatures exerted a notable influence on the physiological, biometric, and production characteristics of Macroptilium genotypes. Opting for the warmest season for planting proved to be advantageous in enhancing the yield of the genotypes under scrutiny, thereby elevating water use efficiency. Notably, the A59 and L34 genotypes exhibited superior plant dry mass and forage accumulation when exposed to higher temperatures and less than 100% water availability. These findings suggest that A59 and L34 may hold promise as prospective cultivars of Macroptilium sp. with a heightened tolerance to combined abiotic stresses. 650 $aAbiotic stress 650 $aClimate change 650 $aForage legumes 650 $aMacroptilium 650 $aEspécie Nativa 650 $aFisiologia 650 $aGenótipo 650 $aLeguminosa Forrageira 650 $aMudança Climática 650 $aTemperatura 653 $aDéficit hídrico 653 $aEstresses abióticos 653 $aFisiologia das culturas 653 $aPlantas nativas 700 1 $aOLIVEIRAM G. M. 700 1 $aSANTOS, C. B. dos 700 1 $aSILVA, W. O. da 700 1 $aBARROS, J. R. A. 700 1 $aSIMOES, W. L. 700 1 $aANTONIO, R. P. 700 1 $aANGELOTTI, F. 773 $tPlant Physiology Reports, Dec. 2023.
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