SEED METRICS AND INFLUENCE OF TEMPERATURES AND PRE-GERMINATION TREATMENTS ON GERMINATION OF CAESALPINIA FERREA SEEDS

The objective of this study was to evaluate seed metrics, optimum temperature for germination and efficiency of five pre-germination treatments for overcoming dormancy of Caesalpinia ferrea seeds. Seeds were subjected to constant temperatures of 15, 20, 25, 30 and 35°C and to the following pre-germi...

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Published inNativa (Sinop) Vol. 9; no. 3; pp. 337 - 343
Main Authors Da SilvaBandeira, Arlete, Leonardo dos Santos, Débora, Aguiar Amaral, Maria Caroline, Nelson de Castro Filho, Manoel, Boaventura Nascimento Penha, Caroline, Mascarenhas Andrade Gugé, Romana
Format Journal Article
LanguageEnglish
Published 23.08.2021
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Summary:The objective of this study was to evaluate seed metrics, optimum temperature for germination and efficiency of five pre-germination treatments for overcoming dormancy of Caesalpinia ferrea seeds. Seeds were subjected to constant temperatures of 15, 20, 25, 30 and 35°C and to the following pre-germination treatments: nicking with pincers; immersion in water for 24 hours at room temperature; scarification with sandpaper; immersion in caustic soda for 60 minutes; and control (untreated seeds). Germination rate was assessed by germination percentage and germination speed index. A completely randomized design was used with four replicates of 50 seeds each and means were compared by Tukey test at 5% probability. The best germination performance was obtained in the 15-30°C temperature range and by using chemical scarification with immersion in caustic soda, and mechanical scarification by nicking with pincers and by rubbing on sandpaper.
ISSN:2318-7670
2318-7670
DOI:10.31413/nativa.v9i3.11751