八棱海棠的抗寒性试验
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摘要
通过对八棱海棠进行人工低温处理,观察其形态特征,测定其部分生理指标,研究其对低温的反应,为坝上高寒地区的园林植物引种提供依据。结果表明:八棱海棠枝叶的电导率、丙二醛及游离脯氨酸基本呈现随着温度降低先升高后降低的趋势,叶片可以耐受-18℃低温,枝条可以耐受-24℃的低温,可以通过抗冻锻炼、小生境等实现在坝上高寒地区的引种绿化。
Through artificial freezing treatment of Malus robusta Rehd.,its morphological characteristics were observed, some physiological indexes were determined, and its response to low temperature was studied, which provided a basis for the introduction of garden plants in the high-cold area of Bashang.The result showed that the electrical conductivity, malondialdehyde and free proline of the leaves and branches of Malus robusta Rehd.showed a trend of iecreasing with the dncreasing of temperature, which could tolerate the low temperature of -24℃. The introduction and afforestation in the high-cold area of Bashang can be realized through freezeresistant exercise and niche.
Through artificial freezing treatment of Malus robusta Rehd.,its morphological characteristics were observed, some physiological indexes were determined, and its response to low temperature was studied, which provided a basis for the introduction of garden plants in the high-cold area of Bashang.The result showed that the electrical conductivity, malondialdehyde and free proline of the leaves and branches of Malus robusta Rehd.showed a trend of iecreasing with the dncreasing of temperature, which could tolerate the low temperature of -24℃. The introduction and afforestation in the high-cold area of Bashang can be realized through freezeresistant exercise and niche.
引文
[1]薛建辉,苏敬,刘金根,等.5个常绿阔叶园林树种对低温变化的生理响应[J].南京林业大学学报(自然科学版),2009,33(4):38-42.
[2]沈冠华,邵云华,杨奎增,等.光兆速生杨的抗寒性研究[J].山东林业科技,2005(1):16-17.
[3]邹琦.植物生理生化实验指导[M].北京:中国农业出版社,1997.
[4]孙玉洁,王国槐.植物抗寒生理的研究进展[J].作物研究,2009,23(5):293-296.
[2]沈冠华,邵云华,杨奎增,等.光兆速生杨的抗寒性研究[J].山东林业科技,2005(1):16-17.
[3]邹琦.植物生理生化实验指导[M].北京:中国农业出版社,1997.
[4]孙玉洁,王国槐.植物抗寒生理的研究进展[J].作物研究,2009,23(5):293-296.