| 摘要: |
| 本研究以苗龄3个月的南洋楹（Albizia falcataria）苗木为材料，采用人工控制低温胁迫的方法，通过对其相对电导率、叶片水分饱和亏缺、超氧化物歧化酶活性和丙二醛含量等生理生化指标的测定，研究5个南洋楹种源的抗寒能力。结果表明：不同种源间的南洋楹幼苗离体叶片水分饱和亏缺、细胞膜相对透性、丙二醛含量及超氧化物歧化酶活性等均具有显著差异，综合评定5个种源的抗寒能力由强到弱依次为：Y1、N2、CK、N5、N3、N4。 |
| 关键词: 南洋楹 种源 抗寒 低温胁迫 |
| DOI： |
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| 基金项目:国家“948”引进项目“南洋楹优良种质资源及栽培技术引进”(98-4-10)的部分内容 |
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| Preliminany Study on Cold Resistance of Five Provenances of Albizia falcataria |
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Huang Huarong,Xian Lihua,Ke Biying and Chen Hongyue
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College of Forestry,South China Agricultural University,Guangzhou,Guangdong,Guangdong Forestry School,Guangzhou,Guangdong,College of Forestry,South China Agricultural University,Guangzhou,Guangdong
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| Abstract: |
| The cold resistance of five provinces of Albizia falcataria（Y1, N2, N3, N4 and N5） were studied by determining the relative electrical conductance, the relative water loss, content of malondidehyde and superoxide dismutase activity, using three months old seedlings and low temperature treatments. The results showed that there were obvious differences among the five provenances of the above determined items, and cold resistance was Y1>N2>CK>N5>N3>N4. |
| Key words: Albizia falcataria, provenance, cold resistance, low temperature treatment |
