98份燕麥品種（系）莖稈抗倒伏性狀的綜合評價

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doi：10.11733/j.issn.1007-0435.2025.08.017

中圖分類號：S543.7 文獻(xiàn)標(biāo)識碼：A 文章編號：1007-0435（2025）08-2567-08

Abstract：Inordertounderstandthelodging resistancecharacteristics ofoatstems，descriptiveanalysis，correla tion analysis，cluster analysis and principal component analysis were conducted on l3 traits of 98 domestic and foreign oat varieties（lines）in this experiment.The results showed that 98 oat varieties（lines）had significant differences in diferent traitsand relatively rich variations.Among them，thecoeficients of variationof three traits，namely the length of the second internodeat the base of the stem，the flexural resistance of the second internode at the base of the stem，and the thickness of the stem wall，were all greater than 40% .Regression analysis revealed that stem thickness and stem wall thickness were the core indicators for evaluating lodging resistance，with a comprehensive contribution of 29% .Based on the cluster analysis of 13 stem characteristic indicators，98 oat varieties（lines）could be divided into 3 groups.Among them，the first and third groups were the anti-lodging group，and the second group was the easy-to-lodging group. Through field observation and comprehensive evaluation of principal components，materials such as ZY25，XZ06oO5，Bayou No.13，Yuanza Nol，WDY1，PX0412，X2060388 and Baiyan No.2O were screened out as excellent anti-lodging germplasms. It is preferred in anti-lodging breeding.

Key words：Oat;Stem characteristics;Lodging;Comprehensive evaluation

燕麥（AvenasatiuaL.），作為一種營養(yǎng)豐富、適應(yīng)性強(qiáng)、抗旱耐寒的重要糧食作物和飼草料作物，在全球范圍內(nèi)，特別是在北半球的溫帶地區(qū)廣泛種植，其一般分為帶稃型和裸粒型兩大類，前者稱為皮燕麥或普通燕麥（A.satiaL.），后者稱為裸燕麥（A.nudaL.）[1]。（剩余10506字）