Studies on Evaluation and Screening of Cold Resistance During Seedling Stage in Eighteen Species or Varieties of Spiraea

ACTA HORTICULTURAE SINICA ›› 2014, Vol. 41 ›› Issue (12): 2427-2436.

• Ornamental Plants • Previous Articles Next Articles

Studies on Evaluation and Screening of Cold Resistance During Seedling Stage in Eighteen Species or Varieties of Spiraea

LIU Hui-Min, ZHANG Qian, SU Qing, LIU Ji-Xuan, CHE Dai-Di

College of Horticulture，Northeast Agricultural University，Harbin 150030，China

Online:2014-12-25 Published:2014-12-25

Abstract

Abstract: Eighteen species or varieties of Spiraea were used as the experimental materials，which had different geographic distributions and different cold resistances. The physiological indexes which were related to cold resistance were determined under the natural low temperature in the open field. The subjection function model and Logistic equation were considered to calculate the subjection function value of the physiological indexes，and semi-lethal temperature was calculated through measuring the electrical conductivity of branches with frozen treatments. According to the subjection function value of the physiological indexes and the semi-lethal temperature to determine their cold resistant abilities. The results showed that S. fritschiana Schneid，S. pubescens Turcz，S. velutina Franch，S. chamedryfolia L.，S. sericea Turcz，S. hypericifolia L. and S. trilobata Linn were screened out as the ones which had the strongest cold resistances，also S. trichocarpa Nakai，S. media Schmibt and S. salicifolia Linn as the ones which had the stronger cold resistances.

Key words: Spiraea, cold resistance, semi-lethal temperature, subjection function value

CLC Number:

S 682.1+1

LIU Hui-Min, ZHANG Qian, SU Qing, LIU Ji-Xuan, CHE Dai-Di. Studies on Evaluation and Screening of Cold Resistance During Seedling Stage in Eighteen Species or Varieties of Spiraea[J]. ACTA HORTICULTURAE SINICA, 2014, 41(12): 2427-2436.

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Studies on Evaluation and Screening of Cold Resistance During Seedling Stage in Eighteen Species or Varieties of Spiraea

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