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Position: Home > Articles > Cold Resistance of Rosa rugosa 'kushui' and Rosa rugosa ‘lengxiang’ Journal of Northeast Forestry University 2012,40 (11) 28-30+34

苦水玫瑰和冷香玫瑰抗寒性

作  者:
刘晓东;任伟嘉;何淼
单  位:
东北林业大学
关键词:
苦水玫瑰;冷香玫瑰;低温半致死温度;抗寒性
摘  要:
以甘肃苦水及辽宁开原引进苦水玫瑰种源和冷香玫瑰为供试材料,选择2个品种的1年生离体休眠枝条为试材,通过-25、-30、-35、-38(哈尔滨地区极限温度)、-40℃低温胁迫处理,分别对其相对电导率,超氧化物歧化酶(SOD)、过氧化物酶(POD)活性,游离脯氨酸、可溶性蛋白质量分数的动态变化进行测定与分析,并通过恢复试验评级其抗寒性。结果表明:苦水玫瑰低温胁迫半致死温度为-43.3℃,冷香玫瑰低温胁迫半致死温度为-44.9℃,冷香玫瑰较苦水玫瑰对低温胁迫的耐受能力强,与恢复生长试验结果相吻合。
译  名:
Cold Resistance of Rosa rugosa 'kushui' and Rosa rugosa ‘lengxiang’
作  者:
Liu Xiaodong,Ren Weijia,He Miao(College of Landscape Architecture,Northeast Forestry University,Harbin 150040,P.R.China)
关键词:
Rosa rugosa 'kushui';Rosa rugosa 'lengxiang';Semilethal temperatures;Cold resistance
摘  要:
Rosa rugosa 'kushui' and Rosa rugosa 'lengxiang' were introduced from Kushui in Gansu Province and Kaiyuan in Liaoning Province to Harbin,respectively.Cold stress treatment was conducted on the two varieties using one-year-old detached dormant branches as research objects.The relative electrical conductivity,SOD activity,POD activity,free proline content,and soluble protein content were measured under different temperatures(-25,-30,-35,-38,-40 degrees C).The semilethal temperatures(LT50) of R.rugosa 'kushui' and R.rugosa 'lengxiang' are-43.3 and-44.9 degrees C.The cold resistance of R.rugosa 'lengxiang' is a little higher than that of R.rugosa 'kushui',which is consistent with the result of recovery growth experiment.

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