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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
11/09/2019 |
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Data da última atualização: |
03/10/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
WENDLING, I.; MEDER, R.; WARBURTON, P.; MAGALHAES, W. L. E. |
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Afiliação: |
IVAR WENDLING, CNPF; R. Meder, University of the Sunshine Coast; P. Warburton, University of the Sunshine Coast; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF. |
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Título: |
Near infrared spectroscopy as a tool for predicting growth habit and gender of Araucaria angustifolia. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Australian Forestry, v. 82, n. 3, p. 151-156, 2019. |
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DOI: |
10.1080/00049158.2019.1651976 |
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Idioma: |
Inglês |
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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 |
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Palavras-Chave: |
Brazilian pine; NIR. |
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Thesagro: |
Araucária Angustifólia; Determinação de Sexo; Melhoramento Vegetal. |
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Thesaurus Nal: |
Plant breeding; Sexual dimorphism. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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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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| 100. |  | MAGALHÃES, W. L. E.; SOUZA, M. F. de. Solid wood treated by plasma jet. In: INTERNATIONAL SYMPOSIUM ON NATURAL POLYMERS AND COMPOSITES - ISNaPol/2002, 4, 2002, São Pedro. Proceedings. São Carlos: Embrapa Instrumentação Agropecuária, 2002. p. 91-98 1 CD-ROM. Editado por Luiz Henrique Capparelli Mattoso, Alcides Leão e Elisabete Frollini.| Tipo: Artigo em Anais de Congresso |
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