Revising the Calculation of Correction Coefficient of Potato Leaf Area Based on Image
In the process of scientific research and production,challenges such as complex operations,large errors,and heavy workloads often arise when potato leaf area needs to be determined.The correction coefficient method is a cost-effective and straightforward approach for estimating leaf area,and obtaining an accurate correction coefficient is crucial.To investigate the accuracy of the correction coefficient for potato leaf area estimation,five main regional varieties('Beifang 009','Atlantic','Jizhangshu 12','Beifang 002',and'Xisen 6')were selected as experimental materials.By utilizing digital camera technology in conjunction with image processing techniques and measuring the length and width of potato leaves,precise correction coefficients were obtained.By using image processing,accurate reference values of potato leaf area were obtained,and the length and width of each leaf were multiplied for estimation of the correction coefficient(K value).The simple arithmetic mean method yielded a correction coefficient of 0.583 for each leaf area estimation.Alternatively,employing the weighted arithmetic mean method resulted in a correction coefficient of 0.585 for leaf area estimation.The comparison of the test results revealed a strong correlation coefficient(0.571)for the potato leaf area correction coefficient(K value),obtained through linear regression analysis as a parameter of the coefficient method,with a high correlation coefficient.This finding establishes its potential as an effective correction coefficient for potato leaf area and highlights its applicability in both scientific research and practical potato production.
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