2023年7月D01:10.16376/j.cnki.bfgs.2023.04.004中图分类号：S661.2文献标识码：B三倍体“龙园洋红梨"F1代不同倍性群体叶片特征分析马文尧,王晓祥*,任爱华,韩继龙,王天鹤,侯睿宁，肖丽珍（黑龙江省农业科学院园艺分院，哈尔滨150069)北方果树NORTHERNFRUITS文章编号：1001-5698(2023)04-0017-042023(4)17摘要：为了探究不同倍性材料的叶片特征，以‘龙园洋红梨'（三倍体)F代实生苗群体为试材，研究不同倍性Fi群体的叶部特征，包括面积大小，叶片形状、叶基形状、叶尖形状、叶缘特征、叶裂情况、叶面状态等。结果表明，三倍体叶面积明显大于非整倍体，大于二倍体。F群体中叶片形状以卵圆形、椭圆形为主，占94.69%。叶基部截形和心形为主，叶尖部渐尖和急尖基本持平，叶缘单锯齿和复锯齿基本持平，三倍体叶色均为深，叶面状态多种多样。因此得出结论，叶面积大小、叶片颜色可以作为三倍体F群体三倍体鉴定的形态学指标。而叶片形状、叶基形状、叶尖形状、锯齿形状、裂刻情况、叶面状态等不能作为形态学指标。同时对这一结果的遗传基础进行探讨。关键词：梨；三倍体；FI代群体；叶部特征AnalysisofLeafCharacteristicsofDifferentPloidyFGenerationSeedlingsfromTriploid‘LongyuanYanghongPear'MAWen-yao,WANGXiao-xiang',RENAi-hua,HANJi-long,WANGTian-he,HOURui-ning,XIAOLi-zhen(HorticulturalBranchofHeilongjiangAcademyofAgricultureSciences,Harbin150069,China)Abstract:Inordertoexploretheleafcharacteristicsofdifferentploidymaterials,theFseedlingpopulationofLongyuanYanghongPear'(triploid)wasusedasthetestmaterial,theleafcharacteristicsofannualdifferentploidyFigenerationseedlings,includingleafsize,leafshape,leafbaseshape,leafapexshape,leafmarginincisions,leaffissure,andleafsurface,werestudied,inordertoimprovetheefficiencyofidentifyingploidyofthetriploidpearoffspringseedlings.Itshowedthattheleafareaoftriploidpearseedlingswassignificantlylargerthanthatofaneuploidandlargerthanthatofdiploid.Inthetriploidseedlings,theleafshapewaspredominantlyovateandelliptical,accountingfor94.69%ofthetotal.Theleafbasewaspredominantlytruncateandheart-shaped.Graduallytineandlongrapidtineatleafapexwerebasicallyflat.Singleserrateandbiserrateatleafmarginincisionswerebasicallyflat.Leavesoftripl...
