Cardinal temperatures and thermal requirements for the initial development of two Brazilian native species
Abstract: The objective of this work was to estimate the cardinal temperatures and to quantify the thermal requirements for the initial development of seedlings of the native tree species Citharexylum myrianthum and Bixa orellana. A field experiment was carried out in a completely randomized design, in a 2?12 factorial arrangement (2 tree species and 12 sowing dates), with five replicates. The base, optimum, and maximum temperatures for the development of C. myrianthum were 11.4, 18.1, and 36.6°C, and, for B. orellana, 12.0, 18.4, and 46.4°C. The thermal requirements for the development of C. myrianthum was 66.7°C day per leaf, and, for B. orellana, 82.5°C day per leaf. In the initial development, B. orellana shows a large thermal amplitude and is tolerant to extreme temperatures, while C. myrianthum shows a large thermal amplitude, but a lower thermal requirement and a more rapid development than B. orellana.
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Embrapa Secretaria de Pesquisa e Desenvolvimento
2019
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oai:scielo:S0100-204X20190001009032019-09-18Cardinal temperatures and thermal requirements for the initial development of two Brazilian native speciesFerreira,Mábele de CássiaMartins,Fabrina BolzanFlorêncio,Gabriel Wilson LorenaSilva,João Pedro Guimarães CândidoPasin,Liliana Auxiliadora Avelar Pereira Bixa orellana Citharexylum myrianthum air temperature leaf appearance phenology Abstract: The objective of this work was to estimate the cardinal temperatures and to quantify the thermal requirements for the initial development of seedlings of the native tree species Citharexylum myrianthum and Bixa orellana. A field experiment was carried out in a completely randomized design, in a 2?12 factorial arrangement (2 tree species and 12 sowing dates), with five replicates. The base, optimum, and maximum temperatures for the development of C. myrianthum were 11.4, 18.1, and 36.6°C, and, for B. orellana, 12.0, 18.4, and 46.4°C. The thermal requirements for the development of C. myrianthum was 66.7°C day per leaf, and, for B. orellana, 82.5°C day per leaf. In the initial development, B. orellana shows a large thermal amplitude and is tolerant to extreme temperatures, while C. myrianthum shows a large thermal amplitude, but a lower thermal requirement and a more rapid development than B. orellana.info:eu-repo/semantics/openAccessEmbrapa Secretaria de Pesquisa e DesenvolvimentoPesquisa Agropecuária BrasileiraPesquisa Agropecuária Brasileira v.54 20192019-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000100903en10.1590/s1678-3921.pab2019.v54.00525 |
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Ferreira,Mábele de Cássia Martins,Fabrina Bolzan Florêncio,Gabriel Wilson Lorena Silva,João Pedro Guimarães Cândido Pasin,Liliana Auxiliadora Avelar Pereira |
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Ferreira,Mábele de Cássia Martins,Fabrina Bolzan Florêncio,Gabriel Wilson Lorena Silva,João Pedro Guimarães Cândido Pasin,Liliana Auxiliadora Avelar Pereira Cardinal temperatures and thermal requirements for the initial development of two Brazilian native species |
author_facet |
Ferreira,Mábele de Cássia Martins,Fabrina Bolzan Florêncio,Gabriel Wilson Lorena Silva,João Pedro Guimarães Cândido Pasin,Liliana Auxiliadora Avelar Pereira |
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Ferreira,Mábele de Cássia |
title |
Cardinal temperatures and thermal requirements for the initial development of two Brazilian native species |
title_short |
Cardinal temperatures and thermal requirements for the initial development of two Brazilian native species |
title_full |
Cardinal temperatures and thermal requirements for the initial development of two Brazilian native species |
title_fullStr |
Cardinal temperatures and thermal requirements for the initial development of two Brazilian native species |
title_full_unstemmed |
Cardinal temperatures and thermal requirements for the initial development of two Brazilian native species |
title_sort |
cardinal temperatures and thermal requirements for the initial development of two brazilian native species |
description |
Abstract: The objective of this work was to estimate the cardinal temperatures and to quantify the thermal requirements for the initial development of seedlings of the native tree species Citharexylum myrianthum and Bixa orellana. A field experiment was carried out in a completely randomized design, in a 2?12 factorial arrangement (2 tree species and 12 sowing dates), with five replicates. The base, optimum, and maximum temperatures for the development of C. myrianthum were 11.4, 18.1, and 36.6°C, and, for B. orellana, 12.0, 18.4, and 46.4°C. The thermal requirements for the development of C. myrianthum was 66.7°C day per leaf, and, for B. orellana, 82.5°C day per leaf. In the initial development, B. orellana shows a large thermal amplitude and is tolerant to extreme temperatures, while C. myrianthum shows a large thermal amplitude, but a lower thermal requirement and a more rapid development than B. orellana. |
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Embrapa Secretaria de Pesquisa e Desenvolvimento |
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2019 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000100903 |
work_keys_str_mv |
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1756386071248109568 |