scholarly journals Impact of creeping vegetable cover crops on weed flora composition during the early growth of Hevea (Natural rubber) saplings in a tropical rain forest zone

2009 ◽  
Vol 89 (0) ◽  
pp. 33
Author(s):  
I. K. Okore ◽  
F. A. Akpobome
2021 ◽  
Author(s):  
Julissa Rojas-Sandoval ◽  
Pedro Acevedo-Rodríguez ◽  
Nick Pasiecznik

Abstract S. campanulata is a medium-size tree up to 35 m tall and 175 cm in diameter. It is indigenous to Africa where it extends along the west coast from Ghana to Angola and inland across the tropical rain forest region to southern Sudan and Uganda. It grows naturally in secondary forests in the high forest zone and in deciduous transition and savanna forests. In Uganda, it is one of the trees that colonizes grasslands. It grows well in areas with an even distribution of rainfall but will tolerate a dry season of up to six months. It grows on a wide variety of sites, from poorly to excessively drained, but prefers fertile, deep and well-drained loams.


2018 ◽  
Vol 1 (2) ◽  
Author(s):  
Enio B. Pereira ◽  
Daniel J.R. Nordemann

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


2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Marieke van Beest ◽  
Antoine Bourget ◽  
Julius Eckhard ◽  
Sakura Schäfer-Nameki

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.


Sign in / Sign up

Export Citation Format

Share Document