STORAGE OF Handroanthus umbellatus SEEDS
http://dx.doi.org/10.5902/1980509815725 Seed storage under controlled environmental conditions represents one of the most important lines of research to be applied on short-lived forest species as Handroanthus. The present research aimed to identify the most suitable seed storage conditions and long...
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Published in | Ciência florestal Vol. 24; no. 3; pp. 533 - 539 |
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Main Authors | , |
Format | Journal Article |
Language | Portuguese |
Published |
Universidade Federal de Santa Maria
01.09.2014
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Subjects | |
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Abstract | http://dx.doi.org/10.5902/1980509815725
Seed storage under controlled environmental conditions represents one of the most important lines of research to be applied on short-lived forest species as Handroanthus. The present research aimed to identify the most suitable seed storage conditions and longevity behavior of Handroanthus umbellatus seeds subject to the following storage treatments: packaging permeable paper bags under a no-controlled laboratory temperature and humidity (control) and multiwall semipermeable bag at temperatures of -18 ºC, 1 ºC and 25 ºC. Seeds were dried to 6.3% of water content. Stored seeds were evaluated every three months until 24 months for water content, germination percentage and vigor utilizing first counting test. Seeds of T. umbellata are orthodox, with low longevity under natural conditions, once they remain viable for less than 5 months. The best conditions of seed preservation of these species were obtained by storage at -18° C in multiwall bags. Under these conditions physiological seed quality remains unchanged for a 24-month period. |
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AbstractList | http://dx.doi.org/10.5902/1980509815725
Seed storage under controlled environmental conditions represents one of the most important lines of research to be applied on short-lived forest species as Handroanthus. The present research aimed to identify the most suitable seed storage conditions and longevity behavior of Handroanthus umbellatus seeds subject to the following storage treatments: packaging permeable paper bags under a no-controlled laboratory temperature and humidity (control) and multiwall semipermeable bag at temperatures of -18 ºC, 1 ºC and 25 ºC. Seeds were dried to 6.3% of water content. Stored seeds were evaluated every three months until 24 months for water content, germination percentage and vigor utilizing first counting test. Seeds of T. umbellata are orthodox, with low longevity under natural conditions, once they remain viable for less than 5 months. The best conditions of seed preservation of these species were obtained by storage at -18° C in multiwall bags. Under these conditions physiological seed quality remains unchanged for a 24-month period. |
Author | Monalisa A. D. da Silva Camargo Pinto Cibele Chalita Martins |
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Seed storage under controlled environmental conditions represents one of the most important lines of research to be... |
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SubjectTerms | conservação de sementes Handroanthus eximius Tabebuia umbellata vigor |
Title | STORAGE OF Handroanthus umbellatus SEEDS |
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