Variability for seed longevity among 10 pea varieties was studied under accelerated ageing
conditions of 80% relative humidity and 40 ± l°C temperature. Germination and seedling
vigour decreased in all the varieties with increase in duration of storage. However, varieties
differed in th~ degree of germination decline even when stored under similar conditions
and duration. On the basis of LDso of germination, the varieties JP 888, T 163, Pant P 9 and
EC 33866 were categorized as good storers; Rachna, Hans, PG 3 and KFPD 8 as moderate
storers; and HFP 4 and Pusa 10 as poor storers. Seed size was not correlated with its viability
in storage, however, seed size within a genotype was found to affect longevity only in some
varieties. Seed longevity is genotypically controlled.
Keywords: Longevity, seed, variability, pea.
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906
SUSHIL KUMAR, N. C. SINGHAL AND SURENDRA PRAKASH info_circle