| 温度和光强对金钗石斛吸收磷素的影响 |
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| 引用本文： | 张明,别之龙,陈仕江,万兆良,张玉进,朱利泉,李泉森.温度和光强对金钗石斛吸收磷素的影响[J].西南农业大学学报,1999(3). |
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| 作者姓名： | 张明 别之龙 陈仕江 万兆良 张玉进 朱利泉 李泉森 |
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| 作者单位： | 四川省中药研究所，西南农业大学 |
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| 摘 要： | 应用３２Ｐ研究了温度和光强对金钗石斛吸收磷素的影响。结果表明，２５℃和４０℃处理，植株吸磷量分别为１０℃处理的２．３和２．５倍。２５℃处理，茎中３２Ｐ放射性比活度最高。在中度光（２×１０４Ｌｘ）和高光强（５×１０４Ｌｘ）下，植株吸磷量分别较弱光（５×１０３Ｌｘ）下增加７４％和２３％。在中度光下，茎中３２Ｐ放射性比活度最高。
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| 关 键 词： | 石斛 磷 温度 光 |
TEMPERATURE EFFECTS AND LIGHT INTENSITYON THE INTAKE OF PHOSPHRUS IN DENDROBE |
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| Zhang Ming, Bie Zhilong, Chen Shijiang, Wan Zhaoliang, Zhang Yujin, Zhu Liquan, Li Quansen.TEMPERATURE EFFECTS AND LIGHT INTENSITYON THE INTAKE OF PHOSPHRUS IN DENDROBE[J].Journal of Southwest Agricultural University,1999(3). |
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| Authors: | Zhang Ming Bie Zhilong Chen Shijiang Wan Zhaoliang Zhang Yujin Zhu Liquan Li Quansen |
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| Abstract: | The isotope 32 P was used to monitor different temperature and light intensity on the in take of phosphrus in dendrobe. The amount of phosphrus taken up by the plants under conditions of 25 and 40 were 2.3 and 2.5 times that of 10 treatment, respectively, and the radioactivity of 32 P in stem was the highest in 25 treatment. Compared with low light intensity (5103) treatment, the phosphrus absorbed increased by 74% and 23% in the treatments of intermediate light intensity (2104Lx) and high light intensity (5104Lx), respectively, and the radioactivity of 32 P in stem was the highest in intermediate light intensity treatment. |
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| Keywords: | dendrobium nobile iindl phosphorus temperature light |
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