HUBEI AGRICULTURAL SCIENCES ›› 2020, Vol. 59 ›› Issue (11): 89-92.doi: 10.14088/j.cnki.issn0439-8114.2020.11.019

• Horticulture & Local Products • Previous Articles     Next Articles

Screening of cold resistance rose varieties by utilization of branches germination rate

ZHUANG De-feng2, 3, MA Ce2, XU Ning2, LI Zhen2, WANG Cheng   

  1. 1a.Agricultural College; 1b.College of Life Science, Inner Mongolia University for Nationalities, Tongliao 028000, Inner Mongalia, China;
    2.Institute of Economic Crops, Liaoning Academy of Agricultural Sciences , Liaoyang 111000, Liaoning, China;
    3.College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
  • Received:2019-11-10 Online:2020-06-10 Published:2020-08-06

Abstract: Twenty rose varieties were collected to analyze cold resistance according to germination test by using cutting branches, combined with survival rate under natural conditions with temperature change. The results indicated that five varieties of Love, Eiffel Tower, Fen Shan, Paradise, New Spartan were entirely frozen to death, which were not suitable for landscaping application in north area or Liaoyang, Liaoning province. Otherwise, Hadefujun, Chivalry, Orange Fair, Tianshan Xiangyun, Utano were survived under -25.2 ℃ in Liaoyang. Angela, Viva, Cardinal Hume, Queen Elizabeth were frozen in overground part, but still can survive because of not frozen in underground part. The rate of water loss at low temperature can be used as a macro index to evaluate the cold resistance in rose. In the study, nine rose varieties were selected with a certain cold-resistance, which can be provided for foundations on city landscape of north area in the future.

Key words: rose(Rosa chinensis Jacq.), branch germination, cold resistance, wintering survival, water loss of branches

CLC Number: