不同供氮水平的水稻叶尖的傅里叶转换红外光谱(英) |
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引用本文: | 周启发,沈掌泉,王人潮.不同供氮水平的水稻叶尖的傅里叶转换红外光谱(英)[J].Acta Botanica Sinica,2002(5). |
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作者姓名: | 周启发 沈掌泉 王人潮 |
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作者单位: | 浙江大学生命科学学院 杭州310012
(周启发),浙江大学农业遥感与信息技术应用研究所 杭州310029
(沈掌泉),浙江大学农业遥感与信息技术应用研究所 杭州310029(王人潮) |
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基金项目: | 国家自然科学基金(497710 56)。~~ |
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摘 要: | 四个氮素水平处理的盆栽水稻 (OryzasativaL .)的叶尖在不同生育期均表现出明显的傅里叶转换红外光谱差异。新定义的光谱指数 ((A3 4 0 0 -A1653 ) / (A3 4 0 0 A1653 ) ,A为某频率处的吸收值 )随着施氮水平的提高而降低。结果表明 ,傅里叶转换红外光谱可用于诊断植物的氮素状况。
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关 键 词: | 水稻 氮 傅里叶转换红外光谱 |
Fourier Transform Infrared Spectral Difference of Leaf Tips in Rice Related to Nitrogen Fertilizer Rates |
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Authors: | ZHOU Qi_Fa SHEN Zhang_Quan WANG Ren_Chao |
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Institution: | ZHOU Qi_Fa 1,SHEN Zhang_Quan 2,WANG Ren_Chao 2 |
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Abstract: | Fourier transform infrared spectroscopy (FTIR) was used to detect the spectral difference among leaf tips from rice ( Oryza sativa L.) plants with different nitrogen fertilizer rates. The proposed spectral index, ( A 3400 - A 1653 )/( A 3400 A 1653 ) ( A denotes absorption value at certain frequency (cm -1 )), was found to decline with the increase of nitrogen fertilizer rates and the results suggested that FTIR may be useful to diagnose nitrogen status in crops. |
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Keywords: | Oryza sativa nitrogen Fourier transform infrared spectroscopy |
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