縮節(jié)胺和矮壯素滴施對小麥生長的調控效應研究

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關鍵詞春小麥；縮節(jié)胺；矮壯素；滴施；莖稈性狀；產(chǎn)量中圖分類號 文獻標識碼A文章編號 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

倒伏是影響小麥正常生長、造成減產(chǎn)的重要原因之二[1]，小麥倒伏后，基部節(jié)間輸導組織受損，影響?zhàn)B分流通，根冠生長受阻，群體通風透光性變差，葉片功能下降，病蟲害加重，機械收獲困難，最終產(chǎn)量品質下降，嚴重影響種植效益[2]。（剩余6331字）