CAJ | 학술논문

为探讨减肥对籼稻高产形成的影响，实现绿色增产，以高产氮低效水稻品种丰研425和冈优527为对照，研究了高产氮高效水稻品种江优9527和Q优6号的产量构成、物质积累、叶片光合性状等差异。结果表明，与高产氮低效品种相比，高产氮高效品种的有效穗数有所降低，但每穗粒数、结实率和千粒重均有所增加；高产氮高效品种的干物质积累总量有所降低，但成穗率和收获指数却有所提高。高产氮高效品种群体叶面积指数（LAI）生育前中期相对较小，成熟期增高；剑叶叶绿素含量在灌浆中后期显著增高。
위탐토감비대선도고산형성적영향，실현록색증산，이고산담저효수도품충봉연425화강우527위대조，연구료고산담고효수도품충강우9527화Q우6호적산량구성、물질적루、협편광합성상등차이。결과표명，여고산담저효품충상비，고산담고효품충적유효수수유소강저，단매수립수、결실솔화천립중균유소증가；고산담고효품충적간물질적루총량유소강저，단성수솔화수획지수각유소제고。고산담고효품충군체협면적지수（LAI）생육전중기상대교소，성숙기증고；검협협록소함량재관장중후기현저증고。
Field experiments were conducted to study the combined increase of high yield and high N use efficiency of rice cultivar in 2013 and 2014 at Guiyang city, using two high yield and high N use efficiency cultivars Jiangyou 9527, Qyou 6 and two high yield and low N use efficiency cultivars Fengyan425 and Gangyou527 as materials. The results showed that, compared with the low N use efficiency cultivars, high N use efficiency cultivars have lower effective panicles, lower total dry matter accumulation, but higher grains per panicle, seed setting rate, 1000-grain weight and harvest index. The leaves area index of high N use efficiency cultivars at middle stage were lower than that of low N use efficiency cultivars, but were higher at mature stage, and the SPAD of flag leaf was higher in middle and late filling stage.