Growth-promotion of plants with depolymerized alginates by irradiation

Growth-promotion of plants with depolymerized alginates by irradiation

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 10 4 shows a strong effect on the growth-promotion of rice and peanut. Low concentration of degraded...

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Veröffentlicht in:Radiation physics and chemistry (Oxford, England : 1993) England : 1993), 2000-07, Vol.59 (1), p.97-101
Hauptverfasser: Hien, Nguyen Quoc, Nagasawa, Naotsugu, Tham, Le Xuan, Yoshii, Fumio, Dang, Vo Huy, Mitomo, Hiroshi, Makuuchi, Keizo, Kume, Tamikazu
Format: Artikel
Sprache:eng
Schlagworte:
Alginate
Biopolymers
Cobalt
Degradation
Gamma rays
Irradiation
Molecular weight
Oligoalginate
Plant growth-promotion
Plants (botany)
Radiation degradation
Radiation effects
Radioisotopes
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Beschreibung
Zusammenfassung: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 10 4 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.
ISSN:0969-806X
1879-0895
DOI:10.1016/S0969-806X(99)00522-8