Study on the Relationship Between Stem Structure and Cold Resistance of  Different Varieties of Paeonia rockii(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Study on the Relationship Between Stem Structure and Cold Resistance of  Different Varieties of Paeonia rockii

Author(s):: TANG Lihong; ZHAO Xuemei; CHAI Yuan; ZHAO Ruipeng; YANG Xiaolong; (College of Life Science,Chifeng University,Chifeng,Inner Mongolia 024000)

Abstract:: Based on the studies of previous introduced domestication cultivation and adaptability observation,physiology and biochemistry,leaf anatomical structures,6 varieties of Paeonia rockii stems were taken as test materials,which were ‘Purple Hat Jade Bead’,‘Youth’,‘Purple Flash Gold’,‘Gold Hidden in the snow’,‘Jade Petals Hydrangea’,‘Seedling’.The epidermis,stratum corneum,wall of epidermal cells,collenchyma,endodermis,xylem,phloem,pipe diameter,marrow radius,stem radius of these Paeonia rockii stems were observed,compared and analyzed for the purpose of exploring the relationship between the Paeonia rockii stem structure and cold resistance.The results showed that the collenchyma,stratum corneum,endodermis thickness were not associated with the cold resistance;there was no significant correlation between the wall thickness of epidermal cells,pipe diameter,stem radius and the cold resistance;there was positive correlation among the epidermis cells thickness,xylem thickness,phloem thickness,marrow radius and the cold resistance,and these factors could be set as references indicators for the introduced cultivation.

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Last Update: 2016-07-21