Abaxial Anthocyanin Layer in Leaves of Tropical Rain Forest Plants: Enhancer of Light Capture in Deep Shade

Biotropica ◽  
1979 ◽  
Vol 11 (1) ◽  
pp. 70 ◽  
Author(s):  
David W. Lee ◽  
J. B. Lowry ◽  
B. C. Stone
Keyword(s):  
Rain Forest ◽  
Tropical Rain Forest ◽  
Deep Shade ◽  
Forest Plants ◽  
Light Capture

Germination of small-seeded tropical rain forest plants exposed to different spectral compositions

1996 ◽  
Vol 74 (4) ◽  
pp. 516-520 ◽  
Author(s):  
D. J. Metcalfe
Keyword(s):  
Rain Forest ◽  
Tropical Rain Forest ◽  
Shade Tolerance ◽  
Spectral Composition ◽  
Lower Percentage ◽  
Percentage Germination ◽  
Time Period ◽  
Deep Shade ◽  
Closed Canopy ◽  
Forest Plants

Seeds of 11 very small-seeded species with different degrees of shade tolerance as juveniles were tested for their response to neutral shade (6% daylight), green shade (3%), and darkness. Germination was monitored over 46 weeks. All species germinated in daylight to some extent. Species of Pternandra and Urophyllum, commonly found as juveniles in deep shade, germinated to the same percentage in green shade as in daylight, although over a longer time period, and to a lower percentage in the dark. Percentage germination of Gynotroches axillaris and Pellacalyx saccardianus, also found as juveniles in deep shade, was similar in all treatments, but much faster in daylight. Species of Ficus, which are found commonly as seedlings in deep shade but require higher irradiance for onward growth, germinated rapidly in daylight, and to a lower percentage and after a longer time in green shade than in the dark. Melastoma, which establishes in large gaps, germinated only in daylight. As most species can germinate under a spectral composition similar to canopy shade it is likely that they can germinate under a closed canopy in nature and may become established without the formation of even a transient canopy gap provided leaf litter is absent. Keywords: germination, red/far-red ratio, shade tolerance, tropical rain forest.

The Effects of a Tropical rain Forest Cover on Airborne Gamma-Ray Spectrometry

2018 ◽  
Vol 1 (2) ◽  
Author(s):  
Enio B. Pereira ◽  
Daniel J.R. Nordemann
Keyword(s):  
Rain Forest ◽  
Tropical Rain Forest ◽  
Forest Cover ◽  
Gamma Ray ◽  
Gamma Ray Spectrometry

Para solicitação de resumo, entrar em contato com editor-chefe ([email protected]). 

scholarly journals (5d RG-flow) trees in the tropical rain forest

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Marieke van Beest ◽  
Antoine Bourget ◽  
Julius Eckhard ◽  
Sakura Schäfer-Nameki
Keyword(s):  
Large Class ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
Field Theories ◽  
Flavor Symmetry ◽  
Superconformal Field Theories ◽  
Hasse Diagrams ◽  
Flavor Symmetries ◽  
Rank 2 ◽  
Mass Deformation

Abstract 5d superconformal field theories (SCFTs) can be obtained from 6d SCFTs by circle compactification and mass deformation. Successive decoupling of hypermultiplet matter and RG-flow generates a decoupling tree of descendant 5d SCFTs. In this paper we determine the magnetic quivers and Hasse diagrams, that encode the Higgs branches of 5d SCFTs, for entire decoupling trees. Central to this undertaking is the approach in [1], which, starting from the generalized toric polygons (GTPs) dual to 5-brane webs/tropical curves, provides a systematic and succinct derivation of magnetic quivers and their Hasse diagrams. The decoupling in the GTP description is straightforward, and generalizes the standard flop transitions of curves in toric polygons. We apply this approach to a large class of 5d KK-theories, and compute the Higgs branches for their descendants. In particular we determine the decoupling tree for all rank 2 5d SCFTs. For each tree, we also identify the flavor symmetry algebras from the magnetic quivers, including non-simply-laced flavor symmetries.

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