Study on Cold Resistance of Rosa Species in Xinjiang(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Author(s):: YANG Fan¹; SUI Yun-ji¹; YANG Feng-yu¹; LUO Le²; LIU Hong³; GUO Run-hua¹; 1.Xinjiang Career Technical College,Kuitun,Xinjiang 833200;
2.Beijing Forestry University,Beijing 100083;
3.Kuitun Research Institute of Landscape,Kuitun，Xinjiang 833200

Abstract:: Taking 11 Rosa species in Xinjiang as test materials，the relative electric conductivity (REC) with different temperature freezing was determined.The logistic equation was constructed based on the relationship between REC and temperature，then the semi-lethal temperature (LT₅₀) was determined.The relation between the extent of frozen tips in the second year and the (LT₅₀) was calculated.The results showed that R.acicularis was defined as the hardiest species and R.hugonis was defined as the most cold sensitive one in the experiment.The relation between the extent of frozen tips in the second year and the LT₅₀ was showed a strong and positive linear correlation,that has proved the (LT₅₀) was a credible indicator to evaluate the cold resistance for Rosa species.

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Last Update: 2014-08-25