缩节胺和矮壮素滴施对小麦生长的调控效应研究

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关键词春小麦；缩节胺；矮壮素；滴施；茎秆性状；产量中图分类号 文献标识码A文章编号 0517-6611（2025）08-0138-04doi：10.3969/j.issn.0517-6611.2025.08.029

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AbstractToivestigatetheglatoryctoftalicatioofowthetardantsoatgrohighstesprngeatiyXinun 19wasselecdasthexpeimetalvaetytdythtsofdifrentdosagofCndCCCosharacterstisadyeldcoositionofspring wheatinsouthernXinjiang.TeresultsshowedtatmoderaedripaplicationofDCandCCcouldreduceplantheightcotrol basalinterodengthcreastameterandotstedryweight，creaslafSvalue，cievestrogstemsandgears，and increaseyielduteplicatiodoagestgitilrelyibitlanthht，educestedeigt，ndusedal growth，resultingidecraseinspikeength，umberofsikelets，ndgainumbersultingiducedield.Froteespiefit impact on stem and ear characteristics，CCC is greater than DPC.When DPC is applied at a drip rate of and CCC is applied at a drip rate of ，controlling the plant height at ，the first basal internode at ，and the second internode at 12.5-13.9 cm has the best yield increase effect，with an yield increase rate of 3 . 9 % - 7 . 5 % ：

KeywordsSpringwheat；DPC；CCC；Drip application；Stem traits；Yield

倒伏是影响小麦正常生长、造成减产的重要原因之二[1]，小麦倒伏后，基部节间输导组织受损，影响养分流通，根冠生长受阻，群体通风透光性变差，叶片功能下降，病虫害加重，机械收获困难，最终产量品质下降，严重影响种植效益[2]。（剩余6331字）