应用数字图像技术测定油梨叶面积  

Measurement of Avocado Leaf Area Based on Digital Image Processing Technology

作　　者：李新国[1] 蔡胜忠[1] 李绍鹏[1] 王令霞[1] 姜成东[1] 

机构地区：[1]海南大学园艺园林学院,热带园艺植物资源遗传与改良教育部重点实验室,海南儋州571737

出　　处：《热带农业科学》2009年第2期10-13,共4页Chinese Journal of Tropical Agriculture

基　　金：海南省教育厅高等学校科学研究项目(Hj2008-39);海南大学自然科学基金(Rn0608);海南大学教育教学研究课题资助。

摘　　要：采用扫描叶片并结合Photoshop程序的数字图像处理技术测定油梨(Persea Americana Mill)叶面积,与传统的称重法和方格法进行比较。结果表明,称重法、方格法测得的叶面积与数字图像处理法测得的叶面积之间构成一元线性回归方程,相关系数r分别为0.9984、0.9992,均达到极显著相关。这说明了数字图像处理技术测定油梨叶面积是可行的。与传统2种方法比较,数字图像处理技术具有速度快、精度高、非破坏性测量等的优点,尤其适合测量残缺不全的叶片。A method for measuring avocado leaf area was developed using scanner and Photoshop software. The data resulted from the digital image processing technology were compared with the values from two traditional methods, i.e. gravimetric method and grid method. The result showed that there was a univariate linear regression equation between the results of digital image processing method and two traditional methods. The correlation coefficients were 0.9984 and 0.9992, respectively, and were highly significantly different by F-test. This suggested that the digital image processing technology used to measure avocado leaf area is feasible and reliable. Compared with the traditional methods, this method is fast, accurate, and nondestructive, particularly for measuring broken leaves.

关 键 词：油梨 叶面积 方格法 称重法 数字图像技术 

分 类 号：S66-3[农业科学—果树学]