Teak appears to be a valuable species in tropical silviculture. However, what is the impact of a large scale cultivation of this species on the fertility of tropical soils, which are already acidic and quite poor (in terms of fertility)?
It can be concluded that teak plant has some allelochemicals those inhibit seed germination and seedling growth (both length and mass) of P. zeylanica which is one of the important and widely used local medicinal plants growing in different forests of Terai-Duars belt. However, long term field based studies must be carried out on the allelopathic effects of teak on valuable medicinal herbs growing in this region before selecting teak for large scale plantation, especially when the area is falling within the IUCN recognized Himalaya Biodiversity Hotspot (Kishor Biswas & A. P. Das, 2016)
Yes! Please take a look at the following links.
Article Allelopathic effects of Teak (Tectona grandis L.f.) on germi...
Conference Paper Allelopathy Potential of Tectona grandis on seed germination...
https://pdfs.semanticscholar.org/9ca4/b39e0e157de11d7b034b6351d57ba6092e4c.pdf
https://pdfs.semanticscholar.org/5b78/24c9df8211c1185a521af4d2fde5167c7fea.pdf
https://pdfs.semanticscholar.org/0117/997db3de24c35a052c9315966f977a49cedf.pdf
https://pdfs.semanticscholar.org/41e7/bbf86d56920aa623a4c98d05f1197367c6b4.pdf
Thank you all for answering my question. My follow up question then is this: I am observing here in Panama a robust regrowth of Teak saplings in the understory of well developed trees that are 5 years old and that were replanted after harvest of mature Teak (20 years old). How allelopathy affects the germination of Teak seed? Is the soil ever going to exhaust its capability to sustain the same tree species in a monoculture? Thanks!
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