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现已普遍认识到搜集和保存植物遗传资源的重要性。植物育种的成就很大程度上取决于原始材料的多样性。通过大量筛选不同材料,已经鉴定出一些富有价值的特性应用于育种。提高生产力:植物育种中最有成就的领域之一是谷类作物育种中半矮生基因的利用。中国台湾省低脚乌尖的半矮生基因已导入水稻品种IR8及其衍生品系中,从而点燃了20世纪60年代的绿色革命。与此同时,在日本南部发放了衍生于日本地方品种十石的一系列半矮生水稻品种,例如丰沃、石优和不知火。在日本北部一个半矮生辐射突变品种黎明,对产量的提高作出了巨大的贡献。最近表明所有这些半矮生水稻所具有的矮生基因(Sd—1或d47)都在一个共同的基因位点上。小麦品种农林10的半矮生基因已导入到墨西哥的高产品种拜尼莫
It is now widely recognized the importance of collecting and conserving plant genetic resources. The success of plant breeding depends very much on the diversity of raw materials. By screening large numbers of different materials, some valuable properties have been identified for breeding. Increase productivity: One of the most accomplished areas of plant breeding is the utilization of semidwarf genes in cereal crop breeding. The low-stalked Pointed Semi-dwarf gene in Taiwan Province of China has been introduced into the rice variety IR8 and its derivatives line, thus igniting the green revolution of the 1960s. In the meantime, a series of semi-dwarf rice varieties derived from ten local varieties of Japanese landraces, such as Mt. Dawn, a semi-dwarf radiation mutant in northern Japan, has made a huge contribution to increased production. It has recently been shown that all of these semi-adventitious rice have the dwarf genes (Sd-1 or d47) at a common locus. The semi-dwarf gene of wheat variety Agroforestry 10 has been introduced into the high-yielding species of Mexico, Bani Moore