| 摘要: |
| 【目的】探明强源活库优米栽培技术对华南广适型超级稻产量的影响，即通过强化叶片“源”的功能和籽粒“库”的活性来提高华南广适型超级稻产量。【方法】以5个华南广适型超级稻品种“胜泰1号”、“玉香油占”、“桂农占”、“合美占”和“丰美占”为材料，设置强源活库优米栽培技术（简称强源活库栽培）和常规高产栽培技术（简称常规高产栽培）2个处理，通过大田试验研究栽培技术对华南广适型超级稻品种产量和物质生产特性的影响。【结果】与常规高产栽培技术相比较，强源活库栽培技术显著提高了“胜泰1号”、“玉香油占”、“桂农占”、“合美占”和“丰美占”的实际产量，产量增幅为18.60%～26.23%，并且在强源活库栽培技术下，水稻干物质积累量、叶面积指数、生长发育后期的叶片蔗糖磷酸合成酶（SPS）活性及籽粒蔗糖合成酶（SS）活性均有提高，从而有利于高产形成。【结论】强源活库栽培技术可显著提高华南广适型超级稻的产量。 |
| 关键词: 超级稻 强源活库栽培技术 物质生产特性 产量 |
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| 基金项目:农业部早、晚型超级稻的产学研结合推广模式的示范项目“华南超级稻示范与推广”（4100-F07063）；广东省农业攻关项目“双季超级稻强源活库优米生产技术研究”（2004B20101007）；广东省教育部产学研结合项目“优质超级稻品种育繁推销产学研创新产业化工程”（2007B090400134） |
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| Effects of cultivation technique characterized by enhancing source,activating sink and improving quality on yield of extensive-adaptation super rice in South China |
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LUO Yi-ming,TIAN Jin-yuan,LIN Qing-shan,et al
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| Abstract: |
| 【Objective】The purpose of this study was to investigate the effects of the cultivation technique characterized by enhancing source,activating sink and improving quality on yield of extensive adaptation super rice in South China.The new technique increased the yield of super rice in South China by enhancing leaf source and activating grain sink.【Method】A field contrast experiment was conducted with five rice genotypes (Shengtai 1,Yuxiangyouzhan,Guinongzhan,Hemeizhan and Fengmeizhan) to evaluate the effects of the cultivation technique characterized by enhancing source,activating sink and improving quality on yield and material accumulation characteristics of extensive adaptation super rice in South China by comparing with conventional cultivation technique.【Result】Comparing with conventional cultivation technique,the actual yield of super rice with the new cultivation technique increased by 18.60%-26.23%.In addition,dry matter accumulation,leaf area index,activities of sucrose phosphate synthase (SPS) and sucrose synthase (SS) significantly increased as well.【Conclusion】The yield was significantly increased by cultivation technique characterized by enhancing source,activating sink and improving quality. |
| Key words: super rice cultivation technique characterized by enhancing source,activating sink and improving quality matter production characteristics yield |
