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Position: Home > Articles > Evaluation on Physiological Cold Resistance of Worcester Gold and Gold Mound Northern Horticulture 2010 (5) 105-108

金叶莸与金山绣线菊的生理抗寒性评价

作  者:
张志法;唐道城;杨春江;周洪
单  位:
青海大学高原花卉研究中心
关键词:
金叶莸;金山绣线菊;生理指标;抗寒性
摘  要:
选用金叶莸与金山绣线菊的嫩枝扦插苗,在西宁冬季自然气温-5~-20℃下测定扦插苗根部的脯氨酸、丙二醛、组织水分变化、根系活力、CAT和SOD活性,通过比较分析评价2种植物的抗寒性。结果表明:金叶莸的束缚水含量、束缚水/自由水的比值、根系活力、丙二醛含量、CAT和SOD活性都高于金山绣线菊,这说明金叶莸比金山绣线菊具有更强的抗寒力,同时证明了几种抗寒性评价方法所得结论的一致性和评价方法的有效性。根据根部游离脯氨酸含量看出:金叶莸具有很强的御寒能力,金山绣线菊则表现出更能忍耐低温的能力。
译  名:
Evaluation on Physiological Cold Resistance of Worcester Gold and Gold Mound
作  者:
ZHANG Zhi-fa,TANG Dao-cheng,YANG Chun-jiang,ZHOU Hong (Plateau Flower Research Center of Qinghai University,Xining,Qinghai 810016)
关键词:
Worcester Gold(Caryopteris xclandonensis);Gold Mound(Spiraea bumalda);physiological indexes;cold resistance
摘  要:
With Caryopteris xclandonensis and Spiraea bumalda young cutting seedlings,we measured protine,malondiadehyde(MDA),water status,root vigor,catalase(CAT) and superoxide dismutase(SOD) activities of the seedling root in natural winter temperature of Xining(-5~-20℃),analyzed the differences of cold resistance of the two plants.The results showed that bound water content,bound water/free water ratio,root vigor,MDA,SOD and CAT in Caryoptetis xclandonensis were all higher than Spiraea bumalda.The results suggested that the cold resistance of Caryoptetis xclandonensis was much stronger.At the same time,we proved that the measuring method was effective,and the conclusion which we got from several methods was consistent.The results of root protion content indicated that:The Caryoptetis xclandonensis has stronger ability to resist cold,while the tolerance of Spiraea bumalda to low temperature was much higher.

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