| 两种黄瓜砧木（南瓜）幼苗对NaCl胁迫的渗透调节响应 |
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| 引用本文： | 周俊国,扈惠灵,曾凯,张猛.两种黄瓜砧木（南瓜）幼苗对NaCl胁迫的渗透调节响应[J].中国农学通报,2010,26(6):208-211. |
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| 作者姓名： | 周俊国 扈惠灵 曾凯 张猛 |
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| 作者单位： | 1. 河南科技学院园林学院,河南新乡,453003
2. 河南省农业科学院,郑州,450002 |
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| 基金项目： | 河南省重点科技攻关计划资助项目"保护地瓜类耐盐专用砧木品种选育与利用"，河南科技学院2008年高层次人才科研项目"黄瓜保护地耐盐砧木(南瓜)筛选与利用" |
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| 摘 要： | 摘要: 以两种黄瓜砧木中国南瓜(Cucurbita moschata)杂交种“360-3×112-2”和黑籽南瓜（C. ficifolia）的幼苗为试材，在营养液培养的条件下进行80mmol?L-1 NaC1胁迫，研究了南瓜幼苗的生长、相对含水量、各器官的渗透势和叶片中渗透调节物质含量的变化。结果表明，NaCl胁迫后，两种南瓜幼苗的生长显著受到抑制，“360-3×112-2”幼苗的耐盐性比黑籽南瓜强，“360-3×112-2”幼苗的相对含水量降低较少，各器官的渗透势降低较多，叶片中渗透调节物质含量增加较多。较高的耐盐性与它具较强的渗透调节能力有关。
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| 关 键 词： | 六倍体小黑麦 六倍体小黑麦 抗旱性 RAPD分子标记 遗传多样性 |
| 收稿时间： | 2009-11-06 |
| 修稿时间： | 2009-11-24 |
Response of Osmotic Adjustment of Two Cucumber Rootstock Seedling (Cucurbita spp.) to NaCl Stress |
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| Zhou Junguo,Hu Huiling,Zeng Kai,Zhang Meng.Response of Osmotic Adjustment of Two Cucumber Rootstock Seedling (Cucurbita spp.) to NaCl Stress[J].Chinese Agricultural Science Bulletin,2010,26(6):208-211. |
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| Authors: | Zhou Junguo Hu Huiling Zeng Kai Zhang Meng |
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| Institution: | Zhou Junguo1,Hu Huiling1,Zeng Kai2,Zhang Meng1 (1School of Horticulture , L,scape Architecture,Hennan Institute of Science , Technology,Xinxiang Henan 453003,2Henan Academy of Agriculture Sciences,Zhengzhou 450002) |
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| Abstract: | The growth, relative water content, osmotic potential of all organ, contents of osmoregulation substance including proline and soluble sugar in leaves of two cucumber rootstocks, such as Cucurbita moscbata hybrid ＇360-3 × 112-2＇ and C. ficifolia seedlings were studied in hydroponic adding 80mmol/L NaCl. The results showed that the growth of two tested materials seedling were inhibited significantly after 7 days under NaCl stress, salt tolerance of ＇360-3× 112-2＇ hybrid seedlings was higher than C. fieifolia, and decrease of relative water content was less, decrease of osmotic potential of all organ was more, increase of osmoregulation substance contents in leaves was more than that of C. fieifolia seedling.Those results can be concluded that the higher salt tolerance of ＇360-3× 112-2＇ hybrid under NaCI stress than C. fieifolia was closely related to its stronger osmotic adjustment ability. |
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| Keywords: | cucumber rootstock Cucurbita spp NaCl stress osmotic adjustment |
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