Research Article

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Brazil nut tree is a species of economic importance for
the Amazon region, known for the commercialization of its almonds.
The objective of this work was to study the genetic diversity among halfsib
progenies from different Brazil nut trees present in native forest in
the municipality of Itaúba, MT, belonging to the Brazilian Amazon. In a
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Knowing the mating patterns is important to determine the number of trees necessary for seed collection for conservation ex situ, tree breeding and environmental reforestation purposes. We investigated B. excelsa individuals and fruits, to check mating system index variations in a population by using open-pollinated seeds which were hierarchically sampled within ... more

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Soybean rust is considered a highly aggressive disease in soybean crops. Most research has focused on obtaining resistant genotypes based on dominant or recessive alleles, which provide vertical resistance. The identification of promising crosses that may be used to develop genotypes with horizontal resistance from IAC 100 may help to increase the longevity of the ... more

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