Abstract
Abstract T rembleya laniflora is an endemic shrub from neotropical montane rocky savannas of southeastern B razil. It has been indicated as a potential candidate for ecological restoration of abandoned iron‐ore mines due to heavy metal accumulation. Here, we evaluated the seed germination requirements of T . laniflora . Seeds collected in 2005 and 2008 were set to germinate under a broad range of temperature and light conditions. Seed viability was estimated by dissecting seeds under a dissecting microscope for embryo presence/absence. Seeds were photoblastic and optimum temperature range was 20–25° C , coinciding with the onset of the rainy season. Seeds were viable after 42 months of storage, which together with small seeds that easily get buried and light requirement for germination suggest formation of soil seed banks. Except the large fraction of embryoless seeds, almost all tested seeds germinated when incubated under light conditions; therefore, T . laniflora should be regarded to have nondormant seeds. Easiness of burial resulting from small seed size and positive photoblastism may both contribute to incorporation into soil seed banks. Our data suggest that the long‐term storage of T . laniflora seeds provides a useful strategy for plant reintroduction.
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Claims 7
Claim · model-written summary
Seeds were photoblastic.
Verbatim
e0“Seeds were photoblastic”
t0“T rembleya laniflora”
Claim · model-written summary
The optimum germination temperature was 20–25° C.
Not reportedOrgan / stage
Verbatim
e0“optimum temperature range was 20–25° C”
t0“T rembleya laniflora”
Claim · model-written summary
Seeds remained viable after 42 months of storage.
Not reportedDirection
Verbatim
e0“Seeds were viable after 42 months of storage”
t0“T rembleya laniflora”
Claim · model-written summary
Almost all tested seeds germinated under light, apart from a large embryoless fraction.
- Taxon
- T rembleya laniflorat0
- Treatment
- light conditionse0
- Outcome
- almost all tested seeds germinatede0
- Qualifier
- large fraction of embryoless seedse0
Not reportedDirection
Verbatim
e0“Except the large fraction of embryoless seeds, almost all tested seeds germinated when incubated under light conditions”
t0“T rembleya laniflora”
Claim · model-written summary
The authors regard the seeds as nondormant.
Not reportedDirection
Verbatim
e0“T . laniflora should be regarded to have nondormant seeds”
t0“T rembleya laniflora”
Claim · model-written summary
Small seeds and light dependent germination may promote incorporation into soil seed banks.
Verbatim
e0“Easiness of burial resulting from small seed size and positive photoblastism may both contribute to incorporation into soil seed banks”
t0“T rembleya laniflora”
Claim · model-written summary
Long term seed storage is suggested for plant reintroduction.
Verbatim
e0“long‐term storage of T . laniflora seeds provides a useful strategy for plant reintroduction”
t0“T rembleya laniflora”