Effects of low dose gamma irradiation of long period storage tomato seeds on germination percentage and seedling growth

Abstract

Low dose gamma irradiation was used to study stimulation effects on germination percentage and seedling growth of long period storage tomato seeds. Irradiation dose of Co-60 source ranging from 0 (control), 20, 40, 60, 80 and 100 Gy were used to irradiated 2 yearsstorage tomato seeds. After irradiation, the seeds were planted in tissue paper. On the eight days of germination, germination percentage, seedling length and root length were measured. The result shows that the germination parameters of the tomato seedssignificantly increased when irradiated with 20 Gy of gamma rays. This study may be useful for stimulating the germination percentage of tomato seeds stored for a long period.

Irradiation and Polyamines Impact on Growth Traits of Grecian Foxglove (Digitalis Lanata L.) Cultivated in Vitro Rooting

“…Gamma rays may have worked to increase the enzymatic activity that stimulates cell division continuously throughout the vegetative growth period (Singh and Datta, 2010). Seeds irradiated with low doses are rapidly characterized in cell divisions, especially in meristematic cells at the top of the roots, which increase the penetration property and the growth of roots in the soil (Boonsua et al, 2020). This result also agrees with the previous studies, which found an increase in activity of the developing tops on the tips of roots in plants with seeds irradiated with low doses of gamma rays.…”