棉花品种叶片反射光谱吸收特征研究  

Study on Spectral Absorption Features of Cotton Leaves

作　　者：黄春燕[1] 马亚琴[1] 肖华[1] 王登伟[1] 李少昆[2] 曹连莆[1] 田庆久[3] 扬新军[1] 

机构地区：[1]石河子大学新疆作物高产研究中心,石河子832003 [2]中国农业科学院作物育种栽培研究所农业部作物遗传育种重点开放实验室,北京100081 [3]中国科学院遥感应用研究所,北京100101

出　　处：《新疆农业大学学报》2003年第3期33-36,共4页Journal of Xinjiang Agricultural University

基　　金：国家自然科学基金资助项目(30060039)

摘　　要：　应用地物光谱仪和光谱一阶微分分析技术研究了新疆7个主栽棉花品种叶片反射光谱吸收特征,结果表明,生育后期表现早衰的品种及受干旱胁迫的棉花"红谷"区最小波段光谱反射率(Ro)及数值积分面积(SRo)增大,谷低变浅,Ro及SRo与叶片光合速率呈显著线性负相关关系,可作为棉叶水分亏缺及衰老的快速诊断方法。The surface features spectracomparator and spectral derivative analytical method were used to probe the spectral absorption features of cotton leaves in Xinjiang. The results showed that high value of the spectral reflectance in 'Red Well' could reflect cotton leaf in senescence; there was linear regression correlation between the photosynthetic rate of cotton leaves and the peak value and area of spectral reflectance in 'Red Well'. Thus the spectral reflectance can be used to diagnose the status of function decline and water drought stress in cotton.

关 键 词：棉花 叶片 光谱吸收特征 早衰 

分 类 号：S562.01[农业科学—作物学]