Study on Propagation of the Endangered Species Petrocosmea qinlingensis by Leaf Cutting(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Study on Propagation of the Endangered Species Petrocosmea qinlingensis by Leaf Cutting

Author(s):: YANG Ping1; 2; LU Ting1; QIU Zhijing2; (1.College of Forestry and Horticulture，Xinjiang Agricultural University，Urumqi，Xinjiang 830052；2.Fairylake Botanical Garden/Key Laboratory of Southern Subtropical Plant Diversity，Shenzhen and Chinese Academy of Sciences,Shenzhen,Guangdong 518004）

Keywords:: Petrocosmea qinlingensis; cutting medium; cutting methods; cutting propagation

Abstract:: In order to effectively protect the genetic resources，establish a highly efficient propagation system，and improve the reproductive efficiency，effects of different cutting medium and different cutting treatments were investigated on the growth of adventitious roots and adventitious buds.The results showed that the best cutting medium was perlite+vermiculite+peaty soil among three substrates.The duration of adventitious roots need 26-34 days，and the rates of rooting were 81.00%-94.33%.And the buds formation need 29-33 days，the number of buds were 4.03-5.64，moreover，young seedlings grew well.The formation of adventitious roots was effected by cutting treatments.The growth rate of whole-leaf cuttage was up to 94.33%.The performance of rooting by whole-leaf cutting was obviously better than other methods in terms of rooting time,root number，and the average root length.

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Last Update: 2016-07-14