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对大量典型的籼粳亚种间杂交种组合的产量源库特征进行了研究，获得了如下结果：亚杂组合的物质生产的优势主要表现在出穗后经济产量形成期，这与籼型三系杂交稻物质生产的优势主要表现在出穗前迥然不同；亚杂组合的库容优势也十分明显，就其总体而言全生育期物质生产量与库容的比例高于汕优６３；大多数亚杂组合的光合产物向穗的运转不良，这是部分亚杂组合籽粒充实不良的成因，也是限制亚种间杂种优势充分利用的带普遍性的问题。对这一问题的研究展望及提高亚种间杂交稻籽粒充实度的栽培途径进行了讨论
The characteristics of yield source sinks for a large number of typical combinations of indica and japonica subspecies hybrids were studied and the following results were obtained: The advantages of subgenus combinations in material production are mainly the formation of economic yield after emergence, Department of hybrid rice material production advantages mainly in the very different before the panicle; Sub-combinations of the storage capacity is also very obvious advantages, as a whole, the whole growth period of material production and storage capacity ratio is higher than the Shanyou 63; most of Asia Miscellaneous combination of photosynthetic products to the poor operation of the spike, which is part of sub-combination of grain filling causes of poor, but also to limit the subspecies heterosis take full advantage of the universal problem. The research prospects of this issue and the ways of improving the grain filling degree of inter-subspecific hybrid rice are discussed