1Department of Crop Science, Faculty of Agriculture and Food Sciences, Universiti Putra Malaysia Kampus Bintulu, Sarawak, Malaysia.
2Department of Plant Protection, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.
3Biotechnology Research Center, Malaysian Agricultural Research and Development Institute (MARDI), Serdang Selangor, Malaysia.
4Department of Forestry Science, Faculty of Agriculture and Food Sciences, Universiti Putra Malaysia Kampus Bintulu, Sarawak, Malaysia.
5Department of Forest Management, Faculty of Forestry, University Putra Malaysia, Serdang Selangor, Malaysia.
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