Overcome dormancy of seeds of Tucum (Astrocaryum huaimi Mart.)

The objective of this study was to evaluate the effect of immersion for varying periods in different concentrations of gibberellic acid and separate methods of scarification on the germination of seeds tucum. In the first trial, testing different soaking periods (24 and 48 hours), different forms of...

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Main Authors: Apolyana Lorrayne Souza, Juliana de Fátima Sales, Rafael Cândido Campos, Aurélio Rubio Neto, Fabiano Guimarães Silva
Format: Article
Language:English
Published: Universidade Estadual de Londrina 2014-02-01
Series:Semina: Ciências Agrárias
Subjects:
Online Access:http://www.uel.br/revistas/uel/index.php/semagrarias/editor/submission/10230
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author Apolyana Lorrayne Souza
Juliana de Fátima Sales
Rafael Cândido Campos
Aurélio Rubio Neto
Fabiano Guimarães Silva
author_facet Apolyana Lorrayne Souza
Juliana de Fátima Sales
Rafael Cândido Campos
Aurélio Rubio Neto
Fabiano Guimarães Silva
author_sort Apolyana Lorrayne Souza
collection DOAJ
description The objective of this study was to evaluate the effect of immersion for varying periods in different concentrations of gibberellic acid and separate methods of scarification on the germination of seeds tucum. In the first trial, testing different soaking periods (24 and 48 hours), different forms of soaking (fast and slow) and different concentrations of gibberellic acid (0 , 100 and 200 mg L-¹ ) compared to the control (water) under completely randomized design in a factorial 2x2x3. The second experiment evaluated the different scarification treatments being: physical (seed coat removal in the hilar region with the aid of a scalpel), chemical (sulfuric acid 98 PA for 2:04 minutes) and thermal (hot water at approximately 98 ° C and cold water at about 2°C for 4 minutes). In the first trial were evaluated % of contaminated seeds (seeds infected by microorganisms) and hard seeds ( who did not start the germination process , but not soiled), and in the second we assessed germination percentage (%) every two days for three months; germination Speed Index (GSI), time to occurrence of 50 % germination (T50) and Emergency Speed Index (ESI). The use of gibberellic acid was ineffective in promoting germination of Tucum (Astrocaryum Huaimi Mart.). Scarification treatments were effective in promoting germination and emergence of seedlings in the nursery and the most efficient physical removal scarification of the seed coat in the hilar region with the highest percentage of germination.
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spelling doaj.art-eb265f76af46487f81991a185cdb7ceb2022-12-22T01:08:37ZengUniversidade Estadual de LondrinaSemina: Ciências Agrárias1676-546X1679-03592014-02-0135274975810.5433/1679-0359.2014v35n2p749Overcome dormancy of seeds of Tucum (Astrocaryum huaimi Mart.)Apolyana Lorrayne Souza 0Juliana de Fátima Sales 1Rafael Cândido Campos 2Aurélio Rubio Neto 3Fabiano Guimarães Silva 4Universidade Estadual Paulista Júlio de Mesquita FilhoInstituto Federal GoianoInstituto Federal GoianoInstituto Federal GoianoInstituto Federal GoianoThe objective of this study was to evaluate the effect of immersion for varying periods in different concentrations of gibberellic acid and separate methods of scarification on the germination of seeds tucum. In the first trial, testing different soaking periods (24 and 48 hours), different forms of soaking (fast and slow) and different concentrations of gibberellic acid (0 , 100 and 200 mg L-¹ ) compared to the control (water) under completely randomized design in a factorial 2x2x3. The second experiment evaluated the different scarification treatments being: physical (seed coat removal in the hilar region with the aid of a scalpel), chemical (sulfuric acid 98 PA for 2:04 minutes) and thermal (hot water at approximately 98 ° C and cold water at about 2°C for 4 minutes). In the first trial were evaluated % of contaminated seeds (seeds infected by microorganisms) and hard seeds ( who did not start the germination process , but not soiled), and in the second we assessed germination percentage (%) every two days for three months; germination Speed Index (GSI), time to occurrence of 50 % germination (T50) and Emergency Speed Index (ESI). The use of gibberellic acid was ineffective in promoting germination of Tucum (Astrocaryum Huaimi Mart.). Scarification treatments were effective in promoting germination and emergence of seedlings in the nursery and the most efficient physical removal scarification of the seed coat in the hilar region with the highest percentage of germination.http://www.uel.br/revistas/uel/index.php/semagrarias/editor/submission/10230Scarification; Seedling emergence; Arecaceae; Plant growth regulator
spellingShingle Apolyana Lorrayne Souza
Juliana de Fátima Sales
Rafael Cândido Campos
Aurélio Rubio Neto
Fabiano Guimarães Silva
Overcome dormancy of seeds of Tucum (Astrocaryum huaimi Mart.)
Semina: Ciências Agrárias
Scarification; Seedling emergence; Arecaceae; Plant growth regulator
title Overcome dormancy of seeds of Tucum (Astrocaryum huaimi Mart.)
title_full Overcome dormancy of seeds of Tucum (Astrocaryum huaimi Mart.)
title_fullStr Overcome dormancy of seeds of Tucum (Astrocaryum huaimi Mart.)
title_full_unstemmed Overcome dormancy of seeds of Tucum (Astrocaryum huaimi Mart.)
title_short Overcome dormancy of seeds of Tucum (Astrocaryum huaimi Mart.)
title_sort overcome dormancy of seeds of tucum astrocaryum huaimi mart
topic Scarification; Seedling emergence; Arecaceae; Plant growth regulator
url http://www.uel.br/revistas/uel/index.php/semagrarias/editor/submission/10230
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