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从1977年开始,巴西农牧业调查工程的国家遗传资源中心(EMBRAPA-CENARGEN)对原产巴西的、有希望成为牧草的豆科植物种质资源进行了发掘、收集、特性评定以及保存的研究。15个资源收集考察团对巴西大部分热带地区进行了资源的收集工作,其中的7次是和国际农业中心(CIAT)合作的。大约收集了4600份豆科材料,其中的1/3是柱花草属(Stylosanthes)种质材料,其它被收集的重要的属有丁葵草属(Zoriona),山蚂蝗属(Desmodium),Centrosema和田皂角属(Aeschnomene)。
Beginning in 1977, EMBRAPA-CENARGEN conducted a study on the discovery, collection, characterization and conservation of native legumes in Brazil that are promising to be forage legumes . Fifteen resource collection missions carried out resource collection in most of the tropical regions of Brazil, seven of them in cooperation with the International Center for Agriculture (CIAT). Approximately 4,600 leguminous materials were collected, 1/3 of which were Stylosanthes germplasm materials. Other important genera collected were Zoriona, Desmodium, Centrosema Aeschnomene.