The Escola Superior d'Agricultura de Barcelona, Spain conserves 300 flint maize landraces (Zea mays L) collected in the northwest of Spain. Multiplication and elemental characterization were carried out as well as top-cross characterization with the tester dent inbred CM105. The results indicate that this germplasm, cycle 150 to 300 FAO, is a reserve of genetic variability of interest in improvement programmes, particularly as some top-cross hybrids yielded equal or higher grain production than commercial check hybrids.
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机译：西班牙巴塞罗那的Escola Superior d'Agricultura de保存了在西班牙西北部收集的300颗火石玉米地方品种（Zea mays L）。使用测试仪凹齿自交系CM105进行了乘法和元素鉴定以及最高杂交鉴定。结果表明，从150到300粮农组织的这种种质资源是改良计划中感兴趣的遗传变异储备，特别是因为一些顶交杂种的产量比商业检查杂种更高或更高。
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