CAJ | 학술논문

以扬麦16和宁麦13为试验材料,研究了不同浓度(0 g/L、4 g/L、8 g/L、12 g/L)腐植酸叶面处理对扬花期小麦光合特性、水分利用效率、灌浆进程及产量的影响。结果表明,8 g/L腐植酸叶面处理后,扬麦16的气孔限制值和水分利用效率分别增加了18.75%和14.9%,宁麦13的净光合速率、气孔导度、水分利用效率和表观叶肉导度分别增加了20.83%、15.07%、15.94%和20.37%,且都与对照有显著性差异。同时,腐植酸叶面处理显著增加了两种小麦的穗质量增加速率,促进了灌浆进程。产量及其构成因子测定结果表明,随着腐植酸浓度的增加,小麦千粒质量、穗粒数和产量有不同程度的增加。其中,8 g/L腐植酸叶面处理后,扬麦16和宁麦13的千粒质量分别增加3.9%和16.29%,穗粒数分别增加4.4%和12.68%,产量分别显著增加17.34%和28.18%。说明腐植酸叶面处理能有效提高小麦的千粒质量和穗粒数,增加产量。因此,腐植酸叶面处理可以作为提高小麦水分利用效率和促进灌浆进程的一种有效措施。
이양맥16화저맥13위시험재료,연구료불동농도(0 g/L、4 g/L、8 g/L、12 g/L)부식산협면처리대양화기소맥광합특성、수분이용효솔、관장진정급산량적영향。결과표명,8 g/L부식산협면처리후,양맥16적기공한제치화수분이용효솔분별증가료18.75%화14.9%,저맥13적정광합속솔、기공도도、수분이용효솔화표관협육도도분별증가료20.83%、15.07%、15.94%화20.37%,차도여대조유현저성차이。동시,부식산협면처리현저증가료량충소맥적수질량증가속솔,촉진료관장진정。산량급기구성인자측정결과표명,수착부식산농도적증가,소맥천립질량、수립수화산량유불동정도적증가。기중,8 g/L부식산협면처리후,양맥16화저맥13적천립질량분별증가3.9%화16.29%,수립수분별증가4.4%화12.68%,산량분별현저증가17.34%화28.18%。설명부식산협면처리능유효제고소맥적천립질량화수립수,증가산량。인차,부식산협면처리가이작위제고소맥수분이용효솔화촉진관장진정적일충유효조시。
Yangmai 16 and Ningmai 13 were selected as materials to study the effects of foliar spraying different con-centrations (0 g/L, 4 g/L, 8 g/L, 12 g/L) of humic acid ( HA) on photosynthetic characteristics, water use efficiency (WUE), grain filling and yield of wheat at flowering. Compared with control(HA free), 8 g/L of HA significantly(P<0. 05) increased the stomatal limitations and WUE of Yangmai 16 by 18. 75% and 14. 9%, and significantly(P<0. 05) increased the net photosynthetic rate, stomatal conductance, WUE, apparent mesophyll conductance ( AMC) of Ningmai 13 by 20. 83%, 15. 07%, 15. 94% and 20. 37%, respectively. Foliar spraying HA significantly improved the grain filling rate of the two winter wheat cultivars, and thus promoted grain fill-ing process. With the rising of HA concentration, the grain number per ear, 1 000-grain weight and yield of wheat in-creased in varying degrees. HA concentration (8 g/L) sig-nificantly raised 1 000-grain weight of Yangmai 16 and Ningmai 13 by 3. 9% and 16. 29%, the grain number per ear by 4. 4% and 12. 68%, and the yield by 17. 34% and 28. 18%, respectively. Therefore, foliar spraying HA is an effective way to improve WUE and grain filling process of wheat.