Studies on Growth Characteristics and Starch Productivity of the Sago Palm (Metroxylon Sagu Rottb.) Folk Varieties in Seram and Ambon Islands, Maluku, Indonesia
Trop. Agr. Develop. 64(3): 125 - 134,2020 Studies on Growth Characteristics and Starch Productivity of the Sago Palm (Metroxylon sagu Rottb.) Folk Varieties in Seram and Ambon Islands, Maluku, Indonesia Yoshinori YAMAMOTO 1, *, Tetsushi YOSHIDA 1, Isamu YANAGIDATE 1, Febby Jeanry POLONAYA 2, Willem Anthon SIAHAYA 2, Foh Shoon JONG 3, Yulius Barra PASOLON 4, Akira MIYAZAKI 1, Tomoko HAMANISHI 5, and Kazuko HIRAO 6 1 Faculty of Agriculture, Kochi University, Nankoku, Kochi 783-8502, Japan 2 Faculty of Agriculture, Pattimura University, Ambon, Maluku 97233, Indonesia 3 PT. National Timber and Forest Products, Selatpanjang, Riau 28753, Indonesia 4 Faculty of Agriculture, Haluoleo University, Kendari, Southeast Sulawesi 93232, Indonesia 5 Faculty of Home Economics, Kyoritsu Women’s University, Chiyoda-ku, Tokyo 101-8437, Japan 6 Aikoku Gakuen Junior College, Edogawa-ku, Tokyo 133-8585, Japan Abstract The growth characteristics and starch productivities of four major sago palm folk varieties (spiny types: Ihur, Tuni, Makanaru; non-spiny type: Molat) were compared on Seram and Ambon Islands, Maluku, Indonesia. These folk varieties were recognized there by spiny or non-spiny; length and density of the spine; the angle of leaf crown; the attaching features of leaflets to the rachis (horizontal or V-shaped); drooping of the leaflet tip; starch productivity; starch color, etc. There were no significant differences in growth characteristics, leaf and leaflet characteristics, starch content, and characteristics related to starch content among the four major folk varieties on Seram Island. The trunk growth characteristics and starch content of the Ihur and Tuni on Ambon Island were comparable to those of Seram Island.
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