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  • Research Seminar No.223, 24 October 2022
    16:30-, The Interdivisional Education and Research Building, 5th Floorbr

    「Heirloom island radishes on the verge of extinction — Amami-Oshima island “Koshi radish” and Kikai-jima island “Onotsu radish”」
    NAKANO Hatsunori
    (Experimental Farm, Faculty of Agriculture, Kagoshima University)

     Heirloom crops have been maintained and developed by adapting to the climate unique to the region, building regional culture through the life of residents and developing human resources. However, as the heirloom crops unique to the region disappear one after another, diversity of genetic resources is disappearing, due to rise of commercial varieties, changing cultivation form, decrease in farmers, and disappearance of villages caused by declining birthrate and aging population. In recent years, the diverse food culture and education rooted in the region are being reconsidered. With the growth of local production for local consumption and health consciousness, these vegetables with regional diversity have been recognized. On the other hand, preserving and enlightening the heirloom crops is an urgent issue.
     I surveyed the entire Kagoshima prefecture and collected more than 100 varieties of crops. In almost all regions, heirloom vegetables are replaced by commercial varieties. Moreover, in areas where heirloom vegetables remain, it was only left by elderly people producing their own seeds. In this way, it is necessary to leave these crops with their stories to future generations, since crops have supported the local food culture and people through a long history have value as cultural assets.
     In this presentation, I introduce heirloom radishes of south Amami-Oshima island (Setouchi town) and Kikai-jima island.








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