Abstract
Conserving forest species seeds is fundamental to optimizing seedling production. The objective of this study was to evaluate the effect of different storage environments on the germination of Handroanthus chrysotrichus seeds. For 24 months, the seeds were stored in two environments: a laboratory (25 °C) and a refrigerator (7 °C). Every four months, the seeds were placed on Gerbox plates lined with germ test paper. The plates were then stored in closed plastic bags in a growth chamber with a controlled temperature (25 °C ± 2 °C) and a 16-hour photoperiod. The design was completely randomized with ten replicates of twenty seeds. The following variables were analyzed: moisture content, germination percentage, and germination speed index (GSI). The results showed that seeds stored in the laboratory experienced a significant decrease in germination and GSI beginning in the fourth month, whereas the refrigerator environment did not affect germination over time. However, a reduction in moisture content and GSI was observed in both environments. It was concluded that seeds of this species are best stored at low temperatures; refrigeration (7 °C) efficiently preserves the germination and vigor of H. chrysotrichus seeds.
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Claims 6
Claim · model-written summary
Laboratory-stored seeds showed a significant germination decline from month four.
- Taxon
- Handroanthus chrysotrichus
_REFON.jpg?width=60)
Tabebuia chrysotrichat0 - Treatment
- stored in the laboratorye0
- Outcome
- germinatione0
- Direction
- decreasee0
- Qualifier
- beginning in the fourth monthe0
- Comparator
- refrigerator environmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_REFON.jpg?width=500)
Verbatim
e0“The results showed that seeds stored in the laboratory experienced a significant decrease in germination and GSI beginning in the fourth month, whereas the refrigerator environment did not affect germination over time.”
t0“Handroanthus chrysotrichus”
Claim · model-written summary
Laboratory-stored seeds showed a significant GSI decline from month four.
- Taxon
- Handroanthus chrysotrichusTabebuia chrysotrichat0
- Treatment
- stored in the laboratorye0
- Outcome
- GSIe0
- Direction
- decreasee0
- Qualifier
- beginning in the fourth monthe0
- Comparator
- refrigerator environmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that seeds stored in the laboratory experienced a significant decrease in germination and GSI beginning in the fourth month, whereas the refrigerator environment did not affect germination over time.”
t0“Handroanthus chrysotrichus”
Claim · model-written summary
Refrigerated seeds maintained germination over time.
- Taxon
- Handroanthus chrysotrichusTabebuia chrysotrichat0
- Treatment
- refrigerator environmente0
- Outcome
- germinatione0
- Direction
- did not affecte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the refrigerator environment did not affect germination over time.”
t0“Handroanthus chrysotrichus”
Claim · model-written summary
Seed moisture content declined in both storage environments.
- Taxon
- Handroanthus chrysotrichusTabebuia chrysotrichat0
- Outcome
- moisture contente0
- Direction
- reductione0
- Qualifier
- both environmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, a reduction in moisture content and GSI was observed in both environments.”
t0“Handroanthus chrysotrichus”
Claim · model-written summary
GSI declined in both storage environments.
- Taxon
- Handroanthus chrysotrichusTabebuia chrysotrichat0
- Outcome
- GSIe0
- Direction
- reductione0
- Qualifier
- both environmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, a reduction in moisture content and GSI was observed in both environments.”
t0“Handroanthus chrysotrichus”
Claim · model-written summary
The authors recommend refrigeration at 7 °C for seed germination and vigor preservation.
- Taxon
- H. chrysotrichusTabebuia chrysotrichae0
- Outcome
- refrigeration (7 °C) efficiently preserves the germination and vigore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“refrigeration (7 °C) efficiently preserves the germination and vigor of H. chrysotrichus seeds.”