水稻源库关系及其研究进展(文献综述)

水稻源库关系(RSS)的研究结果表明,“次库”贮藏物在于阻止秕粒的形成和延缓衰老→而抽穗后源对产量的贡献相对较大;库积累干物质的能力具有位置与时间性;库的积累能力还能调节源的生产能力;库容本身的能力决定了产量限度;水稻从野生型到栽培型、从低产到高产,库源得到了交互改良。目前具超高产潜力的水稻品种或组合籽粒充实不良与新型平衡的源库关系尚未建立有关。从高产理论与限制因子角度出发,水稻有源限制型、库限制型及其它限制型。对源库关系研究过程中存在的问题也进行了讨论。

Relationship between Source and Sink in Rice and It's Progress in Research(Literature Review)

The relationship between source and sink of rice (RSS)was examined and the results indicated:the storage products in the subsink of rice is to prevent the occurence of shrivelled grains and to slow down the senescence ; the contribution of source to yield was down the sene-scence ;the contribution of source to yield was down the senescence ;the contribution of source to yield was relatively high after heading ;the dry matter accumutive capacity of sink depends upon the insertion node and growth time of sink ; the productivity of source might be regulated by the accumalative capacity of sink ;the capacity of sink itself determined the limiting of the yield ;the sink and source of rice have been improved interactively when the wild types evoluted into a cultivated one,and the yield became from lower to higher simultaneously. Recently the grains filled unsubstantial in the varieties and cross combinations which possessed a superyield potential were correlated with the unestablishment of new balance between source and sink. There are types limited by source, sink or others based on the principles and limiting factors of high yield. The questions in the reseach process of source-sink relationship have been discussed here also.