Artigo

Physiological immaturity and hydropriming of parkia nitida miq. seeds with physical dormancy

Parkia nitida (Fabaceae Mimosoideae) is a neotropical timber tree of economic e ecological importance due to its wood and the possibility of rapid growth in degraded areas. is a neotropical tree species of economic and ecological importance. That study aimed to verify if the freshly harvested seeds...

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Autor principal: Moraes, Gina Janet Vargas Pinedo
Outros Autores: Ferraz, Isolde Dorothea Kossmann, Procópio, Lilian Costa
Grau: Artigo
Idioma: English
Publicado em: Ciência Florestal 2020
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/15407
id oai:repositorio:1-15407
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spelling oai:repositorio:1-15407 Physiological immaturity and hydropriming of parkia nitida miq. seeds with physical dormancy Imaturidade fisiológica e condicionamento hídrico de sementes de parkia nitida miq com dormência física Moraes, Gina Janet Vargas Pinedo Ferraz, Isolde Dorothea Kossmann Procópio, Lilian Costa Parkia nitida (Fabaceae Mimosoideae) is a neotropical timber tree of economic e ecological importance due to its wood and the possibility of rapid growth in degraded areas. is a neotropical tree species of economic and ecological importance. That study aimed to verify if the freshly harvested seeds exhibit physiological immaturity and apply hydropriming on seeds with different degrees of imbibition to enhance the germination performance. The same seed lot was tested immediately after collection and after one year of storage. The treatments were 0, 20, 40 and 60% of partial imbibition in water at 15°C, followed by a drying period of 7 days. The seeds were sown in washed sand in the nursery (4 x 25 seeds / treatment). Seed moisture was assessed before and after imbibition, and after drying. Statistical tests ANOVA and Kruskal-Wallis showed significant difference between treatments for final germination percentage and mean germination time (p> 0.05). Fresh seeds of Parkia nitida showed 35% of normal seedling development, this value increased after one year of storage to 76%. Hydropriming of the fresh seeds was able to increase the germination to the same value as the stored seeds and reduced the mean emergence time from 7 to 4 days. The positive action of hydropriming was observed only after a partial imbibition of 20% (29 hours), longer imbibition periods significantly reduced the germination. The results indicate on a “critical imbibition level” between 20 and 40% of turgency. The need for a post-harvest maturation for Parkia nitida seeds could be overcome with hydropriming of the fresh seeds. © 2015, Universidade Federal de Santa Maria. All rights reserved. 2020-05-08T20:42:22Z 2020-05-08T20:42:22Z 2015 Artigo https://repositorio.inpa.gov.br/handle/1/15407 10.5902/1980509820667 en Volume 25, Número 4, Pags. 1053-1059 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Ciência Florestal
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language English
description Parkia nitida (Fabaceae Mimosoideae) is a neotropical timber tree of economic e ecological importance due to its wood and the possibility of rapid growth in degraded areas. is a neotropical tree species of economic and ecological importance. That study aimed to verify if the freshly harvested seeds exhibit physiological immaturity and apply hydropriming on seeds with different degrees of imbibition to enhance the germination performance. The same seed lot was tested immediately after collection and after one year of storage. The treatments were 0, 20, 40 and 60% of partial imbibition in water at 15°C, followed by a drying period of 7 days. The seeds were sown in washed sand in the nursery (4 x 25 seeds / treatment). Seed moisture was assessed before and after imbibition, and after drying. Statistical tests ANOVA and Kruskal-Wallis showed significant difference between treatments for final germination percentage and mean germination time (p> 0.05). Fresh seeds of Parkia nitida showed 35% of normal seedling development, this value increased after one year of storage to 76%. Hydropriming of the fresh seeds was able to increase the germination to the same value as the stored seeds and reduced the mean emergence time from 7 to 4 days. The positive action of hydropriming was observed only after a partial imbibition of 20% (29 hours), longer imbibition periods significantly reduced the germination. The results indicate on a “critical imbibition level” between 20 and 40% of turgency. The need for a post-harvest maturation for Parkia nitida seeds could be overcome with hydropriming of the fresh seeds. © 2015, Universidade Federal de Santa Maria. All rights reserved.
format Artigo
author Moraes, Gina Janet Vargas Pinedo
spellingShingle Moraes, Gina Janet Vargas Pinedo
Physiological immaturity and hydropriming of parkia nitida miq. seeds with physical dormancy
author2 Ferraz, Isolde Dorothea Kossmann
Procópio, Lilian Costa
author2Str Ferraz, Isolde Dorothea Kossmann
Procópio, Lilian Costa
title Physiological immaturity and hydropriming of parkia nitida miq. seeds with physical dormancy
title_short Physiological immaturity and hydropriming of parkia nitida miq. seeds with physical dormancy
title_full Physiological immaturity and hydropriming of parkia nitida miq. seeds with physical dormancy
title_fullStr Physiological immaturity and hydropriming of parkia nitida miq. seeds with physical dormancy
title_full_unstemmed Physiological immaturity and hydropriming of parkia nitida miq. seeds with physical dormancy
title_sort physiological immaturity and hydropriming of parkia nitida miq. seeds with physical dormancy
publisher Ciência Florestal
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/15407
_version_ 1787143543597301760
score 11.755432

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