不同遗传型棉花品种光谱反射特性研究

The Spectrum Reflection Factors on Different Cotton Genotypes

不同遗传型棉花品种有不同的光谱反射特性，黄叶棉在可见光区的反射率最高，红叶棉最低，绿叶棉居中，绿叶鸡脚叶与普通叶无明显差异；黄叶棉和绿叶棉在可见光区的反射峰在５６０ｎｍ处，而红叶棉在６１０ｎｍ处；近红外反射率可在一定程度上反映棉花群体大小的差异。

The different genotype cotton varietes have different reflection to the vary spectrum. In the visible spectra area the cotton with yellow leaf has the highest reflection rate, cotton with red leaf is the lowest, green leaf cotton has middle reflecfion rate, and also shows that the green leaf okra cotton has no obvious reflection difference with that of normal cotton. In the visible spectra area the yellow leaf cotton and green leaf cotton have a reflection peek of 560um, but red leaf cotton has the peek of 610nm. Near infrared reflection rate can verify the difference of cotton mass size on a certain degree.