| 低温胁迫对萝卜幼苗抗寒性相关生理指标的影响 |
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| 引用本文： | 孙海燕,张经廷,王宜凯.低温胁迫对萝卜幼苗抗寒性相关生理指标的影响[J].安徽农业科学,2009(2):483-485. |
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| 作者姓名： | 孙海燕 张经廷 王宜凯 |
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| 作者单位： | 潍坊学院生物工程学院,山东潍坊,261061;潍坊学院生物工程学院,山东潍坊,261061;潍坊学院生物工程学院,山东潍坊,261061 |
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| 摘 要： | 目的]探索萝卜的耐寒机理，选育萝卜耐寒品种。方法]以青大长和潍县萝卜2个品种为材料，研究低温胁迫对质膜透性（PMP）、叶绿素（chl）含量、过氧化物酶（rot））活性和脯氨酸（Pro）含量等与抗寒性相关的生理指标的影响。结果]低温胁迫后9d，青大长的相对电导率比对照高出18．68％，潍县萝卜比对照增加31．73％。低温胁迫后6d，青大长幼苗叶片中chl、ehla、ehlb的含量分别比对照低了13．65％、10．83％、19．32％，而潍县萝卜分别比对照低了18．48％、16．49％、22．53％；青大长幼苗POD活性比对照上升了30．90％，而潍县萝卜比对照上升了11．11％。Pro含量青大长和潍县萝卜都于低温胁迫后9d达到最大值，分别比对照高79．5％和70．1％。结论]青大长的抗寒性大于潍县萝卜。
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| 关 键 词： | 低温胁迫 萝卜 抗寒性 生理指标 |
Effects of Cold Stress on the Physiological Indices of Radish in the Seedling Related with the Resistance to Cold |
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| SUN Hai-yan et al.Effects of Cold Stress on the Physiological Indices of Radish in the Seedling Related with the Resistance to Cold[J].Journal of Anhui Agricultural Sciences,2009(2):483-485. |
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| Authors: | SUN Hai-yan |
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| Institution: | SUN Hai-yan et al(College of Biological Engineering,Weifang University,Weifang,Sh,ong 261061) |
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| Abstract: | Objective] The mechanism of the radish with the tolerance to cold was researched for its variety breeding.Method] The effects of cold stress on the physiological index such as the permeability of plasma membrane(PMP),the content of chlorophyll(chl) and proline and the activity of POD of two radish cultivars(Qingdachang and Weixian) was studied.Result] The conductivity of Qingdachang and Weixian was 18.68% and 31.73% higher than that of the CK after 9 days' treatment.And after 6 days' treatment the conten... |
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| Keywords: | Cold stress Radish Cold resistance Physiological index |
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