Climatic zoning of Pinus tecunumanii for experimental stands establishment in São Paulo State, Brazil
DOI:
https://doi.org/10.4336/2012.pfb.32.72.341Keywords:
Pinus, Experimental stations, Vegetal genetic improvementAbstract
Pinus tecunumanii has good adaptation to edafoclimatic regions of Brazil and these pinus have been cultivated on Savanna and Atlantic Forest biomes. The objective of this study was to identify climate homogeneous experimental stations of the Forest Institute of São Paulo and indicate places where it is possible to establish progeny and clone tests for breeding and further commercial plantation of this specie. It was selected 30 experimental areas at São Paulo state and climatic data for each meteorological station nearest of these areas were obtained and subjected to cluster analysis. The results were interpreted from the observation dendrogramas. The climatic requirements of the species were verified in the scientific literature and technical reports. All area of São Paulo State is adequate for experimental plantation, with exception of Campos do Jordão, because of great risks of freezing occurrence. The species may also be planted in the stations of Angatuba, Buri, Pirajú, Itapeva, Avaré, Itapetininga and Itararé, but lower areas of the landscape must be avoided, due to the low temperature. In hotter areas of São Paulo State, as North and Northwest region, we can test the plants for earlier flowering what would be useful for optimization the time for plant breeding.
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