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Registro Completo |
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
11/09/2019 |
Data da última atualização: |
03/10/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
WENDLING, I.; MEDER, R.; WARBURTON, P.; MAGALHAES, W. L. E. |
Afiliação: |
IVAR WENDLING, CNPF; R. Meder, University of the Sunshine Coast; P. Warburton, University of the Sunshine Coast; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF. |
Título: |
Near infrared spectroscopy as a tool for predicting growth habit and gender of Araucaria angustifolia. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Australian Forestry, v. 82, n. 3, p. 151-156, 2019. |
DOI: |
10.1080/00049158.2019.1651976 |
Idioma: |
Inglês |
Conteúdo: |
Araucaria angustifolia is the only native conifer of economic importance in Brazil for wood and nut production. There are several constraints to the genetic improvement of the species. Vegetative ramets display strong and lasting plagiotropism, which is difficult to pre-select for, and it is a dioecious species. Trees reach reproductive maturity at 12?15 years old and there is currently no method to distinguish the sex of the plant before this time. Early detection of plagiotropism or early identification of plant sex would improve efficiencies in breeding programs and seed orchard establishment. Therefore, we investigate the potential of near infrared (NIR) spectroscopy analysis as a tool for predicting growth habit and gender of A. angustifolia. Spectra from needles at the stem apex were taken from 12-month-old plants for growth habit calibration using the presence or absence of a lateral shoot to distinguish between future growth habits. Model validation was done on needles from the apical shoots of orthotropic trunks and from clones displaying plagiotropic growing habit. For plant sex, spectra were collected on wood from bark windows and from multiple needles located midway up the main stem. Needle spectra from individual plants were averaged to produce a single spectrum per plant. Multivariate analysis was performed on spectra and associated reference data. Results indicate that NIR has the potential to predict sex and growth habit and may be a useful screening tool in improvement of Araucaria. MenosAraucaria angustifolia is the only native conifer of economic importance in Brazil for wood and nut production. There are several constraints to the genetic improvement of the species. Vegetative ramets display strong and lasting plagiotropism, which is difficult to pre-select for, and it is a dioecious species. Trees reach reproductive maturity at 12?15 years old and there is currently no method to distinguish the sex of the plant before this time. Early detection of plagiotropism or early identification of plant sex would improve efficiencies in breeding programs and seed orchard establishment. Therefore, we investigate the potential of near infrared (NIR) spectroscopy analysis as a tool for predicting growth habit and gender of A. angustifolia. Spectra from needles at the stem apex were taken from 12-month-old plants for growth habit calibration using the presence or absence of a lateral shoot to distinguish between future growth habits. Model validation was done on needles from the apical shoots of orthotropic trunks and from clones displaying plagiotropic growing habit. For plant sex, spectra were collected on wood from bark windows and from multiple needles located midway up the main stem. Needle spectra from individual plants were averaged to produce a single spectrum per plant. Multivariate analysis was performed on spectra and associated reference data. Results indicate that NIR has the potential to predict sex and growth habit and may be a useful screening tool in ... Mostrar Tudo |
Palavras-Chave: |
Brazilian pine; NIR. |
Thesagro: |
Araucária Angustifólia; Determinação de Sexo; Melhoramento Vegetal. |
Thesaurus Nal: |
Plant breeding; Sexual dimorphism. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
Marc: |
LEADER 02299naa a2200253 a 4500 001 2112119 005 2019-10-03 008 2019 bl uuuu u00u1 u #d 024 7 $a10.1080/00049158.2019.1651976$2DOI 100 1 $aWENDLING, I. 245 $aNear infrared spectroscopy as a tool for predicting growth habit and gender of Araucaria angustifolia.$h[electronic resource] 260 $c2019 520 $aAraucaria angustifolia is the only native conifer of economic importance in Brazil for wood and nut production. There are several constraints to the genetic improvement of the species. Vegetative ramets display strong and lasting plagiotropism, which is difficult to pre-select for, and it is a dioecious species. Trees reach reproductive maturity at 12?15 years old and there is currently no method to distinguish the sex of the plant before this time. Early detection of plagiotropism or early identification of plant sex would improve efficiencies in breeding programs and seed orchard establishment. Therefore, we investigate the potential of near infrared (NIR) spectroscopy analysis as a tool for predicting growth habit and gender of A. angustifolia. Spectra from needles at the stem apex were taken from 12-month-old plants for growth habit calibration using the presence or absence of a lateral shoot to distinguish between future growth habits. Model validation was done on needles from the apical shoots of orthotropic trunks and from clones displaying plagiotropic growing habit. For plant sex, spectra were collected on wood from bark windows and from multiple needles located midway up the main stem. Needle spectra from individual plants were averaged to produce a single spectrum per plant. Multivariate analysis was performed on spectra and associated reference data. Results indicate that NIR has the potential to predict sex and growth habit and may be a useful screening tool in improvement of Araucaria. 650 $aPlant breeding 650 $aSexual dimorphism 650 $aAraucária Angustifólia 650 $aDeterminação de Sexo 650 $aMelhoramento Vegetal 653 $aBrazilian pine 653 $aNIR 700 1 $aMEDER, R. 700 1 $aWARBURTON, P. 700 1 $aMAGALHAES, W. L. E. 773 $tAustralian Forestry$gv. 82, n. 3, p. 151-156, 2019.
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Embrapa Florestas (CNPF) |
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Biblioteca(s): |
Embrapa Meio-Norte. |
Data corrente: |
31/10/2016 |
Data da última atualização: |
02/08/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 2 |
Autoria: |
FONSECA, W. J. L.; AZEVEDO, D. M. M. R.; CAMPELO, J. E. G.; FONSECA, W. L.; LUZ, C. S. M.; OLIVEIRA, M. R. A.; EVANGELISTA, A. F.; BORGES, L. S.; SOUSA JÚNIOR, S. C. |
Afiliação: |
FONSECA, W. J. L, UFPI; DANIELLE MARIA MACHADO R AZEVEDO, CPAMN; CAMPELO, J. E. G., UFPI; FONSECA, W. L., UFC; LUZ, C. S. M., UFPI; OLIVEIRA, M. R. A., UFPI; EVANGELISTA, A. F., UFPI; BORGES, L. S., UFPI; SOUSA JÚNIOR, S. C., UFPI. |
Título: |
Effect of heat stress on milk production of goats from Alpine and Saanen breeds in Brazil. |
Título original: |
Efeito do estresse térmico sobre a produção de leite de caprinos das raças Alpina e Saanen no Brasil. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Archivos de Zootecnia, v. 65, n. 252, p. 615-621, 2016. |
Idioma: |
Inglês |
Conteúdo: |
The purpose of this bibliography review was to approach the thermal comfort rates on milk production of goats from Alpine and Saanen breeds in Brazil. The caloric stress caused by weather changes to which the animals are submitted, influence on the mechanisms of normal physiological processes of the body. Thus, the effect on the lactation process in goats can be mentioned, where it decreases the amount of water in the body with the consequent decrease in synthesis and milk ejection interfering in the production of hormone prolactin and growth hormone. The animal?s interaction with the environment must be considered when the aim in livestock farming is welfare, because the different responses of the animal to the peculiarities of each region are crucial for the success of the animal adaptation. So, the correct identification of the factors that influence the productive life of the animal, such as the stress caused by the seasonal fluctuations of the environment, allow production systems management, making it possible to make them sustainable and viable. The maintenance of these parameters in normal levels is very important, to the point of being used in the evaluation of climate adaptability of breeds to a certain environmental condition. In this way, the concerns about animal welfare and environmental comfort are due to the climatic variables and the behavioral, physiological and productive responses are prevailing when implementing the suitability of certain production systems. MenosThe purpose of this bibliography review was to approach the thermal comfort rates on milk production of goats from Alpine and Saanen breeds in Brazil. The caloric stress caused by weather changes to which the animals are submitted, influence on the mechanisms of normal physiological processes of the body. Thus, the effect on the lactation process in goats can be mentioned, where it decreases the amount of water in the body with the consequent decrease in synthesis and milk ejection interfering in the production of hormone prolactin and growth hormone. The animal?s interaction with the environment must be considered when the aim in livestock farming is welfare, because the different responses of the animal to the peculiarities of each region are crucial for the success of the animal adaptation. So, the correct identification of the factors that influence the productive life of the animal, such as the stress caused by the seasonal fluctuations of the environment, allow production systems management, making it possible to make them sustainable and viable. The maintenance of these parameters in normal levels is very important, to the point of being used in the evaluation of climate adaptability of breeds to a certain environmental condition. In this way, the concerns about animal welfare and environmental comfort are due to the climatic variables and the behavioral, physiological and productive responses are prevailing when implementing the suitability of certain production syst... Mostrar Tudo |
Palavras-Chave: |
Ambiência; Parâmetros fisiológicos. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/149469/1/ARCHIVOS-DE-ZOOTECNIA.pdf
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Marc: |
LEADER 02359naa a2200253 a 4500 001 2055680 005 2019-08-02 008 2016 bl uuuu u00u1 u #d 100 1 $aFONSECA, W. J. L. 240 $aEfeito do estresse térmico sobre a produção de leite de caprinos das raças Alpina e Saanen no Brasil. 245 $aEffect of heat stress on milk production of goats from Alpine and Saanen breeds in Brazil.$h[electronic resource] 260 $c2016 520 $aThe purpose of this bibliography review was to approach the thermal comfort rates on milk production of goats from Alpine and Saanen breeds in Brazil. The caloric stress caused by weather changes to which the animals are submitted, influence on the mechanisms of normal physiological processes of the body. Thus, the effect on the lactation process in goats can be mentioned, where it decreases the amount of water in the body with the consequent decrease in synthesis and milk ejection interfering in the production of hormone prolactin and growth hormone. The animal?s interaction with the environment must be considered when the aim in livestock farming is welfare, because the different responses of the animal to the peculiarities of each region are crucial for the success of the animal adaptation. So, the correct identification of the factors that influence the productive life of the animal, such as the stress caused by the seasonal fluctuations of the environment, allow production systems management, making it possible to make them sustainable and viable. The maintenance of these parameters in normal levels is very important, to the point of being used in the evaluation of climate adaptability of breeds to a certain environmental condition. In this way, the concerns about animal welfare and environmental comfort are due to the climatic variables and the behavioral, physiological and productive responses are prevailing when implementing the suitability of certain production systems. 653 $aAmbiência 653 $aParâmetros fisiológicos 700 1 $aAZEVEDO, D. M. M. R. 700 1 $aCAMPELO, J. E. G. 700 1 $aFONSECA, W. L. 700 1 $aLUZ, C. S. M. 700 1 $aOLIVEIRA, M. R. A. 700 1 $aEVANGELISTA, A. F. 700 1 $aBORGES, L. S. 700 1 $aSOUSA JÚNIOR, S. C. 773 $tArchivos de Zootecnia$gv. 65, n. 252, p. 615-621, 2016.
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