Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Towards Modeling and Predicting the Yield of Oilseed Crops: Multi-Machine Learning Techniques Approach

Version 1 : Received: 27 August 2022 / Approved: 30 August 2022 / Online: 30 August 2022 (11:21:48 CEST)

A peer-reviewed article of this Preprint also exists.

Parsaeian, M.; Rahimi, M.; Rohani, A.; Lawson, S.S. Towards the Modeling and Prediction of the Yield of Oilseed Crops: A Multi-Machine Learning Approach. Agriculture 2022, 12, 1739. Parsaeian, M.; Rahimi, M.; Rohani, A.; Lawson, S.S. Towards the Modeling and Prediction of the Yield of Oilseed Crops: A Multi-Machine Learning Approach. Agriculture 2022, 12, 1739.

Abstract

The modeling and prediction of crop seed yield can be a vital improvement in the precision agriculture industry as it provides reliable assessments of the effectiveness of agro-traits. Here, multiple machine learning (ML) techniques are established for predicting sesame (Sesamum indicum L.) seed yield (SSY) and incorporating agro-morphological features. Models utilized for coupled PCA-ML (Principal component analysis-Machine Learning) methods were compared with original ML models to evaluate predicted efficiency. The Gaussian process regression (GPR) and Radial basis function neural network (RBF-NN) models exhibited the most accurate SSY predictions with determination coefficients or R2 values of 0.99 and 0.91, respectively. The root-mean-square error (RMSE) for the ML models fluctuated between 0 to 0.30 t/ha (metric tons/hectare) for the varied modeling process phases. Estimation of sesame seed yield with coupled PCA-ML models improved performance accuracy. The K-fold process suggested the utilization of datasets with the lowest error rates to ensure the continued accuracy of GPR and RBF models. Sensitivity analysis revealed the capsule number per plant (CPP), seed number per capsule (SPC), and 1000-seed weight (TSW) were the most significant seed yield determinants.

Keywords

Agro-morphological; Data-driven; Machine Learning; Seed yield; Sensitivity Analysis

Subject

Biology and Life Sciences, Agricultural Science and Agronomy

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