Growth-promotion of plants with depolymerized alginates by irradiation

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• 作者：Hien ; Nguyen Quoc ; Nagasawa ; Naotsugu ; Tham ; Le Xuan ; Yoshii ; Fumio ; Dang ; Vo Huy ; Mitomo ; Hiroshi ; et. al.
• 关键词：Alginate ; Oligoalginate ; Radiation degradation ; Plant growth-promotion
• 刊名：Radiation Physics and Chemistry
• 出版年：2000
• 出版时间：July 1, 2000
• 年：2000
• 卷：59
• 期：1
• 页码：97-101
• 全文大小：224 K

文摘

Alginate has been degraded by gamma-ray irradiation from a Co-60 source in liquid state (aqueous solution) and in solid state (powder form). The irradiated alginate with a molecular weight less than 10⁴ shows a strong effect on the growth-promotion of rice and peanut. Low concentration of degraded alginate from 4 % solution irradiated at 100 kGy is effective for the growth-promotion of plants and the suitable concentrations are ca 50 ppm for rice and ca 100 ppm for peanut.