Anthocyanins are severity indicators for apple mosaic disease and can be used to monitor tree health. However, most of the current studies have focused on healthy leaves, few estimated anthocyanin content in diseased leaves. In this study, we obtained hyperspectral data leaves with disease, analyzed spectral characteristics different degrees Mosaic constructed screened index sensitive content, ...

Estimating the available potassium (AK) in soil can help improve field management and crop production. Fourier-transform infrared (FTIR) spectroscopy is one of most promising techniques for fast real-time analysis AK content. However, successful estimation content by FTIR depends on proper selection appropriate spectral dimensionality reduction techniques. To magnify subtle signals concerning u...

Laser-induced breakdown spectroscopy (LIBS) is a powerful tool for qualitative and quantitative analysis. Component analysis significant issue the LIBS instrument onboard Mars Science Laboratory (MSL) rover Curiosity ChemCam SuperCam on 2020 rover. The partial least squares (PLS) sub-model strategy one of outstanding multivariate methods calibration modeling, which firstly developed by science ...

Plant functional traits at the community level (plant hereafter) are commonly used in trait-based ecology for study of vegetation–environment relationships. Previous studies have shown that a variety plant species or can be successfully retrieved by airborne spaceborne imaging spectrometer homogeneous, species-poor ecosystems. However, findings from these may not apply to heterogeneous, species...

The Golden Delicious apple shelf-life prediction model based on electronic nose was built by partial least squares regressions (PLSR). Sensory quality, such as, weight loss, texture, color changes and were studied. correlation between the sensors sensory quality of apples analyzed to select appropriate for construction model. results building PLSR showed that R2 training set 0.86, RMSEC 3.94. r...

Mango and mangosteen are commercially important tropical fruits with a short shelf life. Fruit processing is one of the alternatives to extend life these fruits. Purée processed products fresh fruit. In this research, quality mango purée was analyzed. Titratable acidity (TA) total soluble solids (TSS) were predicted using non-destructive near-infrared (NIR) spectroscopy. A partial least squares...

Variable selection is an important tool in QSAR. In this article, we employ three known techniques: sliced inverse regression (SIR), principal components regression (PCR) and partial least squares regression (PLSR) for models to predict the boiling points of 530 saturated hydrocarbons. With 122 topological indices as input variables our results show that these three methods have good performanc...

Rice yield is not only influenced by factors of varieties and managements, but also environmental factors. In this study, agronomic trait data rice climate in eastern China were collected, yields predicted using a variety algorithms, including the non-linear tool feed-forward backpropagation neural networks (FFBN) linear model partial least squares regression (PLSR). The results showed that bot...