河西走廊地區(qū)不同玉米雜交種材料的性狀分析及綜合評價(jià)

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關(guān)鍵詞：玉米雜交種；性狀分析；產(chǎn)量；綜合評價(jià)；河西走廊地區(qū)

中圖分類號：S513 文獻(xiàn)標(biāo)志碼：A 文章編號：2097-2172（2025）06-0524-07

doi：10.3969/j.issn.2097-2172.2025.06.006

Trait Analysis and Comprehensive Evaluation of Different Maize Hybrids in the Hexi Corridor

ZHANG Zhengjie， YANG Guohua， GUO Ruihong， CHENG Kaihua， YANG Wenxia， MA Zhenglong （Jiuquan Academy of Agricultural Sciences， Jiuquan Gansu 735ooo， China）

Abstract：Byanalyzing thetraitsof maize hybridsintheHexi Coridorregion，thisstudyaims toenhance theaccuracyof inovativeutilizationofmaizegermplasmresources，scientifcallmatchparentallines，andtherebyimprovetheeficiencyofelite varietybreeding.2Omaizehybridswerecomprehensivelyanalyzedfordiseaseresistance，yield，ndyield-relatedtraitsusing methodsincludingclusteranalysis，greyrelationalanalysis，andmembershipfunctionevaluation.Resultsshowed thatstemrotwas the primary disease affecting maize hybrids in the Hexi Corridor，with natural incidence rates ranging from 0% to 90.0% ，and the highesticidenceobservedinthehybridE9706-121Xian38.Thecontributionofyield-relatedtraits tomaizeyield，indescending order，waseardiameter，hundred-kerelweight，numberofkernelrowsperar，kernelsetingrate，numberofkemelsperrow， barrentiplength，andlodgingrate.Clusteranalysiscategorizedthe20hybridsinto3groups.GroupIincluded11medium-yield hybridssuchas5874，56C5617，meia3（entrolriety）5821658JB8 × （204號 J4CV3，3358×J4CV2BC，Jiu714×723，658BC0×723，andEr9706-121×723.Group I included8low-yieldhybridssuch as91M9 × Xian38，Er9706-121×Xian38，Er9706-121×F20，Huaqing105 I × 3358，XD6CR × Er9706-121，J765 × 723，3358 × 1CPSBC3，and J765×Jiu14.GouplincludedonlyHeyul87（tescondcontrolvariety），characteredasigielding.Temembershipfuctio was used for comprehensive evaluation of maize yield and key traits. The D -values of thehybridsranged fromO.265 to 0.693，with Heyu187（the second control variety），3358xJ4CV2BC，658BC0×723，and Jiu714x723 exhibiting higher D -values and overall superior performance，indicating potential for further breeding trials.

KeyWords：Maize hybrid; Trait analysis;Yield; Comprehensive evaluation; Hexi Corridor region

玉米（ZeamaysL.）是保障國家糧食安全的重要支撐，在耕地資源有限的條件下，增加玉米產(chǎn)量的首要因素是提升單產(chǎn)水平[1-2]。（剩余7289字）