Identification of rose varieties based on palynology and petal micromorphology
WANG Chao
LIU Lubing
LIU Jiangting
LIU Hongyan
Abstract：Objective In order to provide reference for microscopic identification and variety division of roses,the mi-croscopic characteristics of pollen grains and petals of six varieties of roses were observed.Methods The morphology of pollen grains and petals of six varieties of roses was observed by optical microscope and scanning electron microscope.Nine palynological characteristics of pollen grains were quantitatively analyzed.Results The pollen grains of six varieties of roses are all N3P4C5 with isopolar,and all of them have stripe patterns extending to the poles along the polar axis.The results of palynological data show that the coefficient of variation of width of endoaperture(We)is too large to be used as a basis for identification.Other indexes,including length of polar axis(P),length of equatorial diameter(E),P/E value,length of ek-toaperture(Le),thickness of exine along polar axis(Exp),thickness of exine along equatorial diameter(Exe),relative thickness of exine along polar axis(Exe/P)and relative thickness of exine along equatorial diameter(Exe/E),are signifi-cantly different,which can be comprehensively applied to six varieties.Conclusion The microscopic morphology,pollen grain characteristics and palynology of six rose species were studied,providing a reference for the identification of different varieties of roses.
Keywords：RosePalynologyPetalField emission scanning electron microscopyMicroscopic features
Publication Date：2024-10-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 957-961,971 )