Modeling the Essential Oil and Trans -Anethole Yield of Fennel ( Foeniculum vulgare Mill. var. vulgare ) by Application Artificial Neural Network and Multiple Linear Regression Methods

Mohsen Sabzi-Nojadeh, Gniewko Niedbała, Mehdi Younessi-Hamzekhanlu, Saeid Aharizad, Mohammad Esmaeilpour, Moslem Abdipour, Sebastian Kujawa and Mohsen Niazian
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Mohsen Sabzi-Nojadeh: Department of Natural Resources and Forestry, Faculty of Agriculture and Natural Resources, University of Tabriz, Ahar 5451645857, Iran
Gniewko Niedbała: Department of Biosystems Engineering, Faculty of Environmental and Mechanical Engineering, Poznań University of Life Sciences, 60627 Poznań, Poland
Mehdi Younessi-Hamzekhanlu: Department of Horticulture Sciences, Faculty of Agriculture and Natural Resources, University of Tabriz, Ahar 5451645857, Iran
Saeid Aharizad: Department of Plant Breeding and Biotechnology, University of Tabriz, Tabriz 5166616471, Iran
Mohammad Esmaeilpour: Department of Natural Resources and Forestry, Faculty of Agriculture and Natural Resources, University of Tabriz, Ahar 5451645857, Iran
Moslem Abdipour: Kohgiluyeh and Boyerahmad Agricultural and Natural Resources Research and Education Center, Agricultural Research Education and Extension Organization (AREEO), Yasouj 7589172050, Iran
Sebastian Kujawa: Department of Biosystems Engineering, Faculty of Environmental and Mechanical Engineering, Poznań University of Life Sciences, 60627 Poznań, Poland
Mohsen Niazian: Field and Horticultural Crops Research Department, Kurdistan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Sanandaj 6616936311, Iran

Agriculture, 2021, vol. 11, issue 12, 1-17

Abstract: Foeniculum vulgare Mill. (commonly known as fennel) is used in the pharmaceutical, cosmetic, and food industries. Fennel widely used as a digestive, carminative, galactagogue and diuretic and in treating gastrointestinal and respiratory disorders. Improving low heritability traits such as essential oil yield (EOY%) and trans -anethole yield (TAY%) of fennel by direct selection does not result in rapid gains of EOY% and TAY%. Identification of high-heritable traits and using efficient modeling methods can be a beneficial approach to overcome this limitation and help breeders select the most advantageous traits in medicinal plant breeding programs. The present study aims to compare the performance of the artificial neural network (ANN) and multilinear regression (MLR) to predict the EOY% and TAY% of fennel populations. Stepwise regression (SWR) was used to assess the effect of various input variables. Based on SWR, nine traits—number of days to 50% flowering (NDF50%), number of days to maturity (NDM), final plant height (FPH), number of internodes (NI), number of umbels (NU), seed yield per square meter (SY/m 2 ), number of seeds per plant (NS/P), number of seeds per umbel (NS/U) and 1000-seed weight (TSW)—were chosen as input variables. The network with Sigmoid Axon transfer function and two hidden layers was selected as the final ANN model for the prediction of EOY%, and the TanhAxon function with one hidden layer was used for the prediction of TAY%. The results revealed that the ANN method could predict the EOY% and TAY% with more accuracy and efficiency (R 2 of EOY% = 0.929, R 2 of TAY% = 0.777, RMSE of EOY% = 0.544, RMSE of TAY% = 0.264, MAE of EOY% = 0.385 and MAE of TAY% = 0.352) compared with the MLR model (R 2 of EOY% = 0.553, R 2 of TAY% = 0.467, RMSE of EOY% = 0.819, RMSE of TAY% = 0.448, MAE of EOY% = 0.624 and MAE of TAY% = 0.452). Based on the sensitivity analysis, SY/m 2 , NDF50% and NS/P were the most important traits to predict EOY% as well as SY/m 2 , NS/U and NDM to predict of TAY%. The results demonstrate the potential of ANNs as a promising tool to predict the EOY% and TAY% of fennel, and they can be used in future fennel breeding programs.

Keywords: artificial neural networks; essential oil; fennel; medicinal plant; trans -anethole; stepwise regression (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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