1. Department of Crop Science, Faculty of Agricultural Science and Forestry, Universiti Putra Malaysia, Bintulu Sarawak Campus, Bintulu 97008, Malaysia
2. Institute of Ecosystem Science Borneo, Universiti Putra Malaysia, Bintulu Sarawak Campus, Bintulu 97008, Malaysia
3. Faculty of Agriculture, University Sultan Sharif Ali Brunei, Kampus Sinaut, Km 33, Jalan Tutong, Kampung Sinaut, Tutong TB1741, Brunei
4. Department of Science and Technology, Faculty of Humanities, Management and Science, Universiti Putra Malaysia, Bintulu Sarawak Campus, Bintulu 97008, Malaysia
5. Department of Land Management, Faculty of Agriculture, Serdang 43400, Malaysia