| 摘要: |
| 对23个南洋楹种源进行PEG 6000浓度在轻度（10% PEG）、中度（15% PEG）、重度（25% PEG）的水分胁迫处理，测定脯氨酸含量，以期比较各种源之间的抗旱适应力。结果分析显示，在重度水分胁迫下，脯氨酸含量增幅较大的是s1、s3、c8、p12种源，增幅较小的是y1、y2、y3、y4、y9、p14种源。 |
| 关键词: 南洋楹〓种源〓水分胁迫〓脯氨酸含量 |
| DOI： |
| 分类号: |
| 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”的部分内容（编号：98 4 10）。 |
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| Analysis of Free Proline Content in Seedlings of Paraserianthes\= falcataria under Water Stress |
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Yang Haiyan[sub_s],[sub_e] Zheng Yongguang[sub_s] and [sub_e] Chen Hongyue[sub_s]
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Guangdong Province Forestry Department,College of Forestry,South China Agricultural University
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| Abstract: |
| There are 23 provenances of Paraserianthes falcataria from different regions under water stress with different polyethylene glycol concentration including the control, mild (10% PEG), moderate (15% PEG) and severe (25% PEG)。Free proline content were respectively measured for filtering outstanding provenance with drought resistance. The results showed strong resistance under severe water stress were in s1, s3, c8 and p12. At the same time, the provenance y1, y2, y3, y4, y9 and p14 presented weak resistance. |
| Key words: Paraserianthes falcataria, provenance, water stress, free proline content |
