Estimation of leaf area by mobile application: Fast and accurate method

Abstract

There are numerous techniques for the estimation of leaf area. Every technique has some advantages and disadvantages over one another. This study proposed a new technique for the leaf area estimation i.e. mobile application (Petiole). It is a free of cost mobile application. The mobile application was used for the estimation of the leaf area of six different plant species. It was observed that error percentage for the leaf area estimation was recorded less than 4% in case of banyan, Jamun and lemon plant leaf. It was also concluded that less than 3 cm 2 area error was present for all the cases. This study confirmed the reliability, correctness and robustness of the mobile application for leaf area estimation. This study ensures the accuracy and capability of the petiole app to mitigate the problems of laborious, cumbersome and expensive experiments for the leaf area estimation and the method also saved a lot of time as compared to the other methods. It has the potential to avoid the complex coding algorithm for the program based techniques, usually adopted for the measurement of the leaf area.

Assessment of morphological attributes of Guava tree for design of a novel tunnel spraying system

“…However, an average leaf area was 29.56×10 4 mm 2 with standard deviation (6.63), but negative error revealed that image-based technique gives an average higher leaf area results as compared to standard grid count method as shown in table 4. The similar negative results are also reported by several researchers (Singh et 2021a(Singh et , 2021b), but their results was based on comparison between grid count and mobile application based leaf area techniques. However, the leaf area of the tree influences the performance of the tunnel sprayer, higher leaf area generally allows more spray deposits on the peripheral canopy of the tree, but extreme dense canopy reduce spray penetration of spray liquid at the center of the tree to be delivered by the sprayer.…”

The Impact of Food Waste Compost, Vermicompost, and Chemical Fertilizers on the Growth Measurement of Red Radish (Raphanus sativus): A Sustainability Perspective in the United Arab Emirates

“…LSA was measured by the grid count method, which uses the leaf’s dimensions (width and length). The measurement unit was in cm 2 [ 37 , 38 ].…”

Effect of Rabbit Urine on the Larval Behavior, Larval Mortality, Egg Hatchability, Adult Emergence and Oviposition Preference of the Fall Armyworm (Spodoptera frugiperda J.E. Smith)

“…The same procedure was repeated for the second and third instars. The leaf area (mm 2 ) consumed by the FAW larval stages was recorded after 6 h and 24 h using a mobile application (Petiole) [33]. With the application downloaded alongside its calibration pad and installed, the android mobile phone (Tecno Camon 17, Shenzhen, China) was fixed at the optimal height (11 cm) above the calibration pad using a measuring stand.…”