Estimation of the Foliar Area by Non-Destructive Methods in Two Stages of Growth of Pepper Plants(Capsicum annuum L.)Hybrid Salvador
作者机构：Facultad de Ingeniería AgronómicaUniversidad Técnica de ManabíPortoviejoEcuador Instituto de Ciencias BásicasUniversidad Técnica de ManabíPortoviejoEcuador Universidad Técnica del NorteIbarraEcuador Departamento de Ingeniería IndustrialUniversidad de Pinar del RíoPinar del RíoCuba
出 版 物：《American Journal of Plant Sciences》 (美国植物学期刊（英文）)
年 卷 期：2018年第9卷第3期
页 面：325-338页
学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学]
主 题：Image Binarization Regression Analysis Leaf Area
摘 要：The present work was aimed to obtain a model for the determination of the leaf area in function of the length and width of the leaves in pepper (Capsicum annuum L.) hybrid Salvador. The research was carried out in nursery conditions at the Experimental Campus La Teodomira, located in the parish of Lodana, Santa Ana, province of Manabí, Ecuador, in 2016, in the stages of initiation of flowering and flowering-fructification. In each phase 100 physiologically mature leaves of different sizes were collected. Leaves were digitalized in a rectangle with known dimensions, which allowed the area to be calculated through the percentage of pixels of different colors. From the determination of the length and maximum width of each leaf and the estimated area through the digitization process, the regression models were obtained, selecting the better fit generated between the leaf area and the product of the length by the maximum width of the leaf (). In the initiation of flowering stage the quadratic model generated the best coefficient of determination (R2 = 0.958), whereas in the flowering-fructification stage the best coefficient of determination was achieved by the cubic model (R2 = 0.955). The practical applicability of other simpler models among the tested ones, which show a high accuracy and sacrifice a low percentage of error, is discussed.
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