PROBLEMS AND PROSPECTS IN CONSERVATION OF GENETIC RESOURCES IN RADISH (Raphanus sativus L)
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Abstract
Radish germplasm is commonly conserved through the seeds. These are relatively short lived under
ambient conditions. Seeds of cv 'Pusa Reshmi' dried to 6.5 per cent moisture were packed in glass,
kraft paper, polyethylene bags (300 gaJlge) and laminated aluminium foil pouches, stored at low
(5°C) and sub-zero (-20°C) temperatures for 15 years. Seed viability was successfully conserved for
15 years both at 5°C and -20°C storage. The retention of high viability and vigour observed in
seeds stored . in polyethylene and laminated aluminium foil pouches at 5°C and in laminated
aluminium foil pouches at -20°C. There were no morphological changes is shoot and root
characteristics. This conservation process can easily be practiced, which is cheaper and retains the
identity of genotype.