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Registro Completo |
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
10/01/2010 |
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Data da última atualização: |
11/09/2012 |
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Autoria: |
MARTIN, J. F. |
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Título: |
The cold resistance of Pacific Coast spring wheats at various stages of growth as determined by artificial refrigeration. |
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Ano de publicação: |
1932 |
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Fonte/Imprenta: |
Journal of the American Society of Agronomy, Geneva, v. 24, n. 11, p. 871-880, 1932. |
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Idioma: |
Inglês |
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Conteúdo: |
Relative winter hardiness of varieties of spring wheat is an important ecological factor in the Columbia Basin of Oregon. Experiments were conducted to determine the value of artificial refrigeration as a means of studying cold resistance in relatively nonhardy varieties, and to find if relative resistance remains constant at different periods of growth. Some of the plants were frozen after being hardened under natural conditions by exposure outside the greenhouse. Others were frozen in an unhardened condition. The varieties were ranked according to winterkilling under field conditions in the Columbia Basin and according to injury in the artificial freezing tests, and the correlation coefficients for these ranks were calculated. The coefficient for winterkilling under field conditions and estimated injury of hardened plants frozen in the seedling stage of development was 0.762 +/- 0.085. The coefficient between field survival and the percentage of plants killed by artificial freezing was 0.740 +/- 0.092. In some instances the differences in cold resistance were shown better by the percentages of plants killed than by leaf injury. Correlation coefficients of 0.636 +/- 0.121 and 0.761 +/- 0.086 were obtained from a comparison of field results with leaf injury and plants killed, respectively, of unhardened plants in the seedling stage. The average injury of unhardened plants was greater than that of hardened plants, especially for the hardy varieties even though frozen at higher temperatures. The association between time of heading and resistance to cold was not sufficiently constant to permit the use of the former as an index of hardiness. The average leaf injury was greater for plants frozen during the day than during the night, but the difference based on percentage of plants killed was not pronounced. The correlation coefficient between field results and plants frozen when in the boot stage of development was 0.818 +/- 0.067. MenosRelative winter hardiness of varieties of spring wheat is an important ecological factor in the Columbia Basin of Oregon. Experiments were conducted to determine the value of artificial refrigeration as a means of studying cold resistance in relatively nonhardy varieties, and to find if relative resistance remains constant at different periods of growth. Some of the plants were frozen after being hardened under natural conditions by exposure outside the greenhouse. Others were frozen in an unhardened condition. The varieties were ranked according to winterkilling under field conditions in the Columbia Basin and according to injury in the artificial freezing tests, and the correlation coefficients for these ranks were calculated. The coefficient for winterkilling under field conditions and estimated injury of hardened plants frozen in the seedling stage of development was 0.762 +/- 0.085. The coefficient between field survival and the percentage of plants killed by artificial freezing was 0.740 +/- 0.092. In some instances the differences in cold resistance were shown better by the percentages of plants killed than by leaf injury. Correlation coefficients of 0.636 +/- 0.121 and 0.761 +/- 0.086 were obtained from a comparison of field results with leaf injury and plants killed, respectively, of unhardened plants in the seedling stage. The average injury of unhardened plants was greater than that of hardened plants, especially for the hardy varieties even though frozen at highe... Mostrar Tudo |
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Palavras-Chave: |
Estádios. |
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Thesagro: |
Trigo; Triticum Aestivum; Vernalização. |
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Thesaurus Nal: |
cold injury; cold tolerance; developmental stages; heading; varieties; winter hardiness. |
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Categoria do assunto: |
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Marc: |
LEADER 02681naa a2200241 a 4500
001 1830555
005 2012-09-11
008 1932 bl --- 0-- u #d
100 1 $aMARTIN, J. F.
245 $aThe cold resistance of Pacific Coast spring wheats at various stages of growth as determined by artificial refrigeration.
260 $c1932
520 $aRelative winter hardiness of varieties of spring wheat is an important ecological factor in the Columbia Basin of Oregon. Experiments were conducted to determine the value of artificial refrigeration as a means of studying cold resistance in relatively nonhardy varieties, and to find if relative resistance remains constant at different periods of growth. Some of the plants were frozen after being hardened under natural conditions by exposure outside the greenhouse. Others were frozen in an unhardened condition. The varieties were ranked according to winterkilling under field conditions in the Columbia Basin and according to injury in the artificial freezing tests, and the correlation coefficients for these ranks were calculated. The coefficient for winterkilling under field conditions and estimated injury of hardened plants frozen in the seedling stage of development was 0.762 +/- 0.085. The coefficient between field survival and the percentage of plants killed by artificial freezing was 0.740 +/- 0.092. In some instances the differences in cold resistance were shown better by the percentages of plants killed than by leaf injury. Correlation coefficients of 0.636 +/- 0.121 and 0.761 +/- 0.086 were obtained from a comparison of field results with leaf injury and plants killed, respectively, of unhardened plants in the seedling stage. The average injury of unhardened plants was greater than that of hardened plants, especially for the hardy varieties even though frozen at higher temperatures. The association between time of heading and resistance to cold was not sufficiently constant to permit the use of the former as an index of hardiness. The average leaf injury was greater for plants frozen during the day than during the night, but the difference based on percentage of plants killed was not pronounced. The correlation coefficient between field results and plants frozen when in the boot stage of development was 0.818 +/- 0.067.
650 $acold injury
650 $acold tolerance
650 $adevelopmental stages
650 $aheading
650 $avarieties
650 $awinter hardiness
650 $aTrigo
650 $aTriticum Aestivum
650 $aVernalização
653 $aEstádios
773 $tJournal of the American Society of Agronomy, Geneva$gv. 24, n. 11, p. 871-880, 1932.
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Registro original: |
Embrapa Trigo (CNPT) |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
19/12/2023 |
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Data da última atualização: |
19/12/2023 |
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Autoria: |
SAVOLDI, A.; STADUTO, J. A. R.; KRETER, A. C. |
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Afiliação: |
APLEDINEI SAVOLDI, UNIVERSIDADE FEDERAL DO PARANÁ; JEFFERSON ANDRONIO RAMUNDO STADUTO, UNIVERSIDADE ESTADUAL DO OESTE DO PARANÁ; ANA CECÍLIA KRETER, RHINE-WAAL UNIVERSITY OF APPLIED SCIENCES. |
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Título: |
Adoção da Agricultura 4.0: Um estudo sobre os produtores de soja da região Oeste do Paraná. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Cadernos de Ciência & Tecnologia, v. 40, e27282, 2023. |
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DOI: |
http://dx.doi.org/10.35977/0104-1096.cct2023.v40.27282 |
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Idioma: |
Português |
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Notas: |
Título em inglês: Adoption of Agriculture 4.0: A study on soybean producers in the western region of Paraná. |
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Conteúdo: |
RESUMO - Este artigo analisou as capacidades de decodificação de informações dos produtores de soja de pequena e média escalas que podem conduzir à adoção de tecnologias da Agricultura 4.0. A pesquisa foi realizada a partir de um estudo de caso dos produtores de soja associados a uma cooperativa agroindustrial localizada no Oeste do estado do Paraná. Foram aplicados questionários para os produtores rurais e entrevistados os funcionários da cooperativa. Os resultados mostram que em algum nível os produtores de soja adotam tecnologias da Agricultura 3.0, mas podem intensificar a aplicação das tecnologias de automação. A terceirização foi fundamental para incorporar inovação sem mobilização de capital. O capital humano, o capital social e a estrutura de apoio mostraram ser muito importantes para capacidade de decodificação das informações que podem conduzir à adoção de tecnologias. Identificou-se a oportunidade para a cooperativa promover para os produtores e seus familiares a capacidade de decodificação de informações, tornando-os capazes de avançarem para as tecnologias da Agricultura 4.0. ABSTRACT - This paper analyzed the information decode capabilities of small and medium scale soy farmers that can lead to the adoption of Agriculture 4.0 technologies. The research was carried out from a case study of soy producers associated with an agro-industrial cooperative located in the west of the state of Paraná. Questionnaires were applied to rural producers and cooperative employees were interviewed. The results show that soybean producers have applied of the Agriculture 3.0 technology, they should apply more intensively automation technology. Outsourcing was fundamental to incorporate innovation without spending capital resources. Human capital, social capital, and support structure were important for information decode capabilities that can lead to the adoption of technologies. An opportunity was identified for the cooperative to promote to producers and their families the ability to decode information, making them capable of advancing to the technologies of Agriculture 4.0. MenosRESUMO - Este artigo analisou as capacidades de decodificação de informações dos produtores de soja de pequena e média escalas que podem conduzir à adoção de tecnologias da Agricultura 4.0. A pesquisa foi realizada a partir de um estudo de caso dos produtores de soja associados a uma cooperativa agroindustrial localizada no Oeste do estado do Paraná. Foram aplicados questionários para os produtores rurais e entrevistados os funcionários da cooperativa. Os resultados mostram que em algum nível os produtores de soja adotam tecnologias da Agricultura 3.0, mas podem intensificar a aplicação das tecnologias de automação. A terceirização foi fundamental para incorporar inovação sem mobilização de capital. O capital humano, o capital social e a estrutura de apoio mostraram ser muito importantes para capacidade de decodificação das informações que podem conduzir à adoção de tecnologias. Identificou-se a oportunidade para a cooperativa promover para os produtores e seus familiares a capacidade de decodificação de informações, tornando-os capazes de avançarem para as tecnologias da Agricultura 4.0. ABSTRACT - This paper analyzed the information decode capabilities of small and medium scale soy farmers that can lead to the adoption of Agriculture 4.0 technologies. The research was carried out from a case study of soy producers associated with an agro-industrial cooperative located in the west of the state of Paraná. Questionnaires were applied to rural producers and cooperative employe... Mostrar Tudo |
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Thesagro: |
Agricultura; Cooperativa; Inovação; Soja; Tecnologia. |
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Thesaurus NAL: |
Agriculture; Cooperatives; Innovation adoption; Soybeans; Technology. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1160044/1/Adocao-agricultura-4.0-estudo-2023.pdf
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Marc: |
LEADER 03081naa a2200289 a 4500
001 2160044
005 2023-12-19
008 2023 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.35977/0104-1096.cct2023.v40.27282$2DOI
100 1 $aSAVOLDI, A.
245 $aAdoção da Agricultura 4.0$bUm estudo sobre os produtores de soja da região Oeste do Paraná.$h[electronic resource]
260 $c2023
500 $aTítulo em inglês: Adoption of Agriculture 4.0: A study on soybean producers in the western region of Paraná.
520 $aRESUMO - Este artigo analisou as capacidades de decodificação de informações dos produtores de soja de pequena e média escalas que podem conduzir à adoção de tecnologias da Agricultura 4.0. A pesquisa foi realizada a partir de um estudo de caso dos produtores de soja associados a uma cooperativa agroindustrial localizada no Oeste do estado do Paraná. Foram aplicados questionários para os produtores rurais e entrevistados os funcionários da cooperativa. Os resultados mostram que em algum nível os produtores de soja adotam tecnologias da Agricultura 3.0, mas podem intensificar a aplicação das tecnologias de automação. A terceirização foi fundamental para incorporar inovação sem mobilização de capital. O capital humano, o capital social e a estrutura de apoio mostraram ser muito importantes para capacidade de decodificação das informações que podem conduzir à adoção de tecnologias. Identificou-se a oportunidade para a cooperativa promover para os produtores e seus familiares a capacidade de decodificação de informações, tornando-os capazes de avançarem para as tecnologias da Agricultura 4.0. ABSTRACT - This paper analyzed the information decode capabilities of small and medium scale soy farmers that can lead to the adoption of Agriculture 4.0 technologies. The research was carried out from a case study of soy producers associated with an agro-industrial cooperative located in the west of the state of Paraná. Questionnaires were applied to rural producers and cooperative employees were interviewed. The results show that soybean producers have applied of the Agriculture 3.0 technology, they should apply more intensively automation technology. Outsourcing was fundamental to incorporate innovation without spending capital resources. Human capital, social capital, and support structure were important for information decode capabilities that can lead to the adoption of technologies. An opportunity was identified for the cooperative to promote to producers and their families the ability to decode information, making them capable of advancing to the technologies of Agriculture 4.0.
650 $aAgriculture
650 $aCooperatives
650 $aInnovation adoption
650 $aSoybeans
650 $aTechnology
650 $aAgricultura
650 $aCooperativa
650 $aInovação
650 $aSoja
650 $aTecnologia
700 1 $aSTADUTO, J. A. R.
700 1 $aKRETER, A. C.
773 $tCadernos de Ciência & Tecnologia$gv. 40, e27282, 2023.
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