CAJ | 학술논문

以礼富一号和嘎啦苹果为材料,分别测量了叶片的光谱反射率、SPAD值和叶绿素含量,分析了叶片的SPAD值和叶绿素含量与微分光谱之间的相关性.结果表明,苹果叶片的叶绿素含量与SPAD值呈线性相关,品种间的SPAD值和光谱反射率都存在差异.苹果叶片叶绿素含量的敏感波段位于694 nm.基于敏感波段的微分数值,建立了一阶微分光谱值与苹果叶片SPAD值和叶绿素含量的回归模型,确定系数分别达到0.781 8和0.589 9,为利用高光谱遥感技术反映苹果生长状况的叶绿素信息提供了依据.
이례부일호화알랍평과위재료,분별측량료협편적광보반사솔、SPAD치화협록소함량,분석료협편적SPAD치화협록소함량여미분광보지간적상관성.결과표명,평과협편적협록소함량여SPAD치정선성상관,품충간적SPAD치화광보반사솔도존재차이.평과협편협록소함량적민감파단위우694 nm.기우민감파단적미분수치,건립료일계미분광보치여평과협편SPAD치화협록소함량적회귀모형,학정계수분별체도0.781 8화0.589 9,위이용고광보요감기술반영평과생장상황적협록소신식제공료의거.
Spectral reflectivity,SPAD value and chlorophyll contents in apple leaves were measured,the correlation between chlorophyll contents and spectral reflectivity were analyzed.The results showed that there was a significant linear correlation between SPAD value and chlorophyll content;SPAD value varied significantly between two varieties.The sensitive wavebands of the contents are situated at 694 nm.based on the first derivative value of band at sensitive wavebands,the linear function model was established.R~2 of 0.781 8 and 0.589 9.This research shows that chlorophll in formation of reflecting apple growing status can be preciously obtained by using hyperspectral remote sensing.