Breeding tropical forages

Brazil has the largest commercial beef cattle herd and is the main beef exporter in the world. Cultivated pastures are the basis for the Brazilian beef production, and occupy an area of 101.4 million hectares. However, very few forage cultivars are commercially available, and the majority of these a...

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Veröffentlicht in:Crop breeding and applied biotechnology 2011-06, Vol.11 (spe), p.27-34
Hauptverfasser: Jank, L, Valle, CB, Resende, RMS
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Valle, CB
Resende, RMS
description Brazil has the largest commercial beef cattle herd and is the main beef exporter in the world. Cultivated pastures are the basis for the Brazilian beef production, and occupy an area of 101.4 million hectares. However, very few forage cultivars are commercially available, and the majority of these are of apomictic reproduction, thus genetically homogeneous. Tropical forage breeding is at its infancy, but much investment and efforts have been applied in the last three decades and some new cultivars have been released. In this paper, origin of different species, modes of reproduction, breeding programs and targets are discussed and the resulting new cultivars released are presented. O Brasil tem o maior rebanho bovino comercial e é o principal exportador de carne do mundo. Pastagens cultivadas são a base para a produção de carne brasileira, e ocupam uma área de 101,4 milhões de hectares. Entretanto, poucas cultivares de forrageiras estão disponíveis comercialmente, e a maioria delas são de reprodução por apomixia, portanto, geneticamente homogêneas. O melhoramento de forrageiras tropicais ainda está na sua infância, porém muitos esforços e investimentos foram despendidos nas últimas três décadas e algumas novas cultivares foram lançadas. Neste trabalho são apresentados e discutidos a origem das diferentes espécies, o modo reprodutivo, os programas de melhoramento e as novas cultivares resultantes lançadas.
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BIOTECHNOLOGY & APPLIED MICROBIOLOGY
title Breeding tropical forages
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