*Nik Norasma Che Ya^1,3,4、Muhammad Wafi Alham Mohd Azlee¹、Muhamad Noor Hazwan Abd Manaf²、Abdul Syukor Juraimi²、 Mohd Razi Ismail² (1.Department of Agriculture Technology, Faculty of Agriculture, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.、2. Department of Crop Science, Faculty of Agriculture, University Putra Malaysia, Serdang 43400, Malaysia、3. Institute of Plantation Studies, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia、4. Smart Farming Technology Research Centre, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia)