文中主要从性状定位和基因克隆方面对产量构成三因子,即分藜、穗粒数和粒重的研究成果进行了综述,并同时详细阐述了影响产量的其他因素,包括株高和杂种优势等的研究进展,并在最后就影响单株产量的分子基础、激素与产量的关系、水稻产量性状的定位策略3个方面对这些研究成果进行了总结和讨论.%The research achievements on the three yield components of tillering, number of grains per panicle and grain weigh! were reviewedrnfrom the mapping of yield traits and the cloning of genes,and the research advances in other factors influencing the yield,such as plant height andrnheterosis, were introduced. And finally these research achievements were summarized and discussed from the molecular basis of single plant yield,rnthe strategy of mapping rice yield components.
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