| 空间环境对小麦叶绿素荧光及光合特性的影响 |
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| 引用本文： | 陆璃,吕金印,巩擎柱,高俊凤.空间环境对小麦叶绿素荧光及光合特性的影响[J].核农学报,2006,20(6):464-468. |
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| 作者姓名： | 陆璃 吕金印 巩擎柱 高俊凤 |
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| 作者单位： | 西北农林科技大学生命科学学院,陕西,杨凌,712100 |
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| 基金项目： | 西北农林科技大学校科研和教改项目 |
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| 摘 要： | 以小麦品种西农1043、陕253为材料,经空间诱变处理后将种子在地面种植,测定小麦功能叶片的叶绿素荧光参数和光合特性的变化。研究表明:空间诱变处理后,2个供试材料的PSⅡ原初光能转化效率(Fv/Fm)、PSⅡ潜在活性(Fv/F0)、光化学猝灭系数(qP)均比对照低,同时处理的净光合速率也低于对照,非光化学猝灭(qN)较对照有所升高。表明小麦种子经过空间诱变处理后,光合系统的发育受到一定程度的影响,光合电子传递、光合原初反映过程受到抑制,光合作用能力下降,植株形态受到影响,千粒重有所下降。
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| 关 键 词： | 小麦种子 空间环境 叶绿素荧光 光合特性 |
| 文章编号： | 1000-8551(2006)06-464-05 |
| 收稿时间： | 12 27 2005 12:00AM |
| 修稿时间： | 2005年12月27 |
EFFECTS OF SPACE ENVIRONMENT ON CHLOROPHYLL FLUORESCENCE AND PHOTOSYNTHESIS CHARACTERISTICS OF WHEAT |
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| LU Li,L Jin-yin,GONG Qing-zhu,GAO Jun-feng.EFFECTS OF SPACE ENVIRONMENT ON CHLOROPHYLL FLUORESCENCE AND PHOTOSYNTHESIS CHARACTERISTICS OF WHEAT[J].Acta Agriculturae Nucleatae Sinica,2006,20(6):464-468. |
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| Authors: | LU Li L Jin-yin GONG Qing-zhu GAO Jun-feng |
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| Institution: | LU Li,L(U) Jin-yin,GONG Qing-zhu,GAO Jun-feng |
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| Abstract: | The effects of the space environment on the chlorophyll fluorescence parameters and photosynthesis characteristics of wheat cultivars,Xinong1043 M1 and Shaan253 M_1,were studied.The results showed that the decrement of contents of PSⅡprimary photochemical efficiency(F_v/F_m),potential activity(F_v/F_0),photochemical quenching coefficient(qP)and photosynthesis rate(Pn)were less than that of control,increment of non-photochemical quenching coefficient(qN)were more than that of control.The results suggested that photosynthetic apparatus were damaged,photosynthetic electron transport,photosynthetic primary reaction were inhibited,rate of photosynthesis decreased and growth of M_1 plant were retarded,which leading to thousand kernel weights decreased. |
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| Keywords: | wheat seed space environment chlorophyll fluorescence photosynthesis characteristics |
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