Species diversity and potentiality for economic improvement cultivation of edible native nuts in Thailand
2002
Wichan Eiadthong(Kasetsart University. Bangkhen Campus, Bangkok (Thailand). Faculty of Forestry. Department of Forest Biology)
Edible native nuts in Thailand were surveyed from natural forests during the period 2000-2001, and a total of 20 species in 9 families were identified. The highest of number species of each family was found in this study that was Fagaceae (9 species), the second was Fabaceae (3 species), the third was Sterculiaceae (2 species). The others were a species in each family (6 species in 6 familes). When considered to select for potentiality for economic improvement cultivation by scoring, five species were the best, representing, starch chestnut (Castanopsis inermis), Malayan chestnut (Castanopis wallichii), khliang (Gnetum gnemon var. tenerum), pee-ra (Elateriospermum tapos) and Himalayan hill chestnut (Castanopsis diversifolia). The areas are suitable for them that are tropical moist evergreen forest climate zone except for Himalayan hill chestnut is suitable in highland of tropical lower montane evergreen forest in savanna climate zones. The medium level for potentiality for economic improvement cultivated species was 10 species. Two species, Indian chestnut (Castanopsis indica) and jelly nut (Scaphium scaphigerum) are interested to introduce for cultivation, because they are good price in local markets. The poor level for potentiality for economic improvement cultivated species was 5 species. Some and many characters in each species were poor like taste, low price, high toxicity, and slowly growth limiting to introduce for cultivation of each species in this group.
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