| 利用~(14)CO_2示踪测定林粮间作作物的光合特性 |
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| 引用本文： | 郭继善,郭利萍,洪德成.利用~(14)CO_2示踪测定林粮间作作物的光合特性[J].南京林业大学学报(自然科学版),1990,33(2):22. |
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| 作者姓名： | 郭继善 郭利萍 洪德成 |
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| 作者单位： | 南京林业大学林学系;南京林业大学林学系;南京林业大学林学系 |
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| 摘 要： | <正>利用~(14)CO_2作为示踪剂,研究7年生杨树与小麦间作时小麦的光合特性。随着林粮间作生态环境条件的改变,间作小麦与大田小麦净光合效率差异增大,如灌浆期的间作小麦~(14)CO_2含量明显地低于同期大田小麦。小麦幼苗期喂饲~(14)CO_230分钟,植株内示踪碳至少可保持7周,而间作小麦~(14)CO_2含量大于大田小麦。
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| 关 键 词： | 林粮间作 小麦 示踪剂 光合作用 |
STUDIES ON THE PHOTOSYTHETIC CHARACTERISTICS OF CROP OF INTERPLANT FOREST GRAIN BY USING ~(14)CO_2, AS TRACER |
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| Guo Jishan,Guo Liping,Hong Decheng.STUDIES ON THE PHOTOSYTHETIC CHARACTERISTICS OF CROP OF INTERPLANT FOREST GRAIN BY USING ~(14)CO_2, AS TRACER[J].Journal of Nanjing Forestry University(Natural Sciences ),1990,33(2):22. |
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| Authors: | Guo Jishan Guo Liping Hong Decheng |
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| Affiliation: | Department of Forestry |
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| Abstract: | This paper studied photosynthetic rate of wheat intercropped with 7 year-old poplars by isotopic tracer technique. The difference of net photosynthetic rate between intercropped wheat and field wheats steadily increases along with the increase of canopy density of poplars. In the seedling stage of wheats fed to leaves with 14CO2 for 30 minutes, 14C can be kept in tissues for 7 weeks at least, and the 14C content of intercropped wheats is higher than that of field wheats. |
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| Keywords: | Forest intercrop Wheat Tracer Photosynthesis |
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