Radiation-induced effects on some common storage edible seeds in India infested with surface microflora
J. P. Maity, A. Chakraborty, A. Saha, S. C. Santra and S. Chanda
Radiation Physics and Chemistry Volume 71, Issue 5 , December 2004, Pages 1065-1072
2004
บทคัดย่อ
The present work describes radiation-induced effects on surface microorganisms on some stored seeds widely used in India. Co-60 gamma source at 25°C emitting gamma ray at 1173 and 1332 keV energy was used for irradiating the rice (Oryza sativa. Cv-2233 and Oryza sativa. Cv-Shankar) and pulse (Cicer arietinum. Cv-local) having >10% moisture content. Dose of gamma irradiation up to 6 kGy (0.12 kGy/h) was applied for exposing the seeds. Significant depletion of the fungal population on seeds was noted with irradiation at 1–2 kGy, while complete inhibition of the contaminating fungi was observed above 4 kGy. Though the germinating potential of the treated grains did not alter significantly, loss in membrane permeability of the exposed seeds was significant.