1. Master Program of Agronomy, Faculty of Agriculture, Universitas Padjadjaran , Sumedang 45363 , Indonesia
2. Laboratory of Horticulture, Faculty of Agriculture, Universitas Padjadjaran , Sumedang 45363 , Indonesia
3. Department of Bioscience and Biotechnology, Faculty of Agriculture, University of the Ryukyus , 1 Senbaru, Nishihara , Okinawa , 903-0213 , Japan
4. United Graduate School of Agricultural Science, Kagoshima University, 1-21-24 Korimoto , Kagoshima 890-0065 , Japan