本文着重研究了五十年来籼稻品种丰产性的演变。导致产量提高的主要原因,在“库”的方面是每穗总粒数的增加。在“源”的方面,一是选育了中秆、抗倒的品种,二是叶片直立性的提高和LAI的增加,三是“源库比”的提高。今后高产育种应着重选育中秆抗倒、叶片直立型、LAI在7.5以上,“粒重/叶”比大于14的大穗型品种。 This article focuses on the evolution of high yield indica rice varieties over the past 50 years. The main reason for the increase in production is the increase in the total number of grains per panicle in the area of ​​“stocks”. In the aspect of “source”, the first is to breed middle-stalk and anti-down varieties; the second is to increase the uprightness of leaves and the increase of LAI; the third is to increase the ratio of source to library. High-yielding breeding in the future should focus on the selection of resistance to stems in the stalks, upright leaves, LAI above 7.5, “grain weight / leaf” greater than 14 large panicle varieties.