Scientists from India performed an experiment to analyse the differential longevity of castor germplasm conserved under uncontrolled storage conditions. Seed longevity of 2961 castor accessions stored for <1-19 years under ambient conditions was investigated to analyse the loss in vigour by the castor seed and also 
determine the genetic variability for seed longevity.
Results showed that castor seed retained 40% germination even after 19 years of storage. All the accessions maintained 100% germination for one year, but from the second year, differential germination percentage was observed among accessions stored for the same duration.