EFFECT OF STORAGE TEMPERATURE AND CULTIVARS ON SEED GERMINATION OF Lilium×formolongi HORT.

Abstract

An experiment was carried out to evaluate the influences of seed storage temperature and variation due to cultivars on the germination of the Lilium×formolongi hort. seeds. The seeds of four cultivars of Lilium×formolongi Hort. viz. Augusta, Raizan Herald (RH), Eorayeon 1ho, and Eorayeon 2ho was treated with four temperature ranges 5°C, -2°C, -20°C and 20°C (Room temperature, Control) up to 6 months to execute the experiment. In total 500 seeds of each cultivar including four temperature regimes and four replications for each temperature treatment and each replication represented by 30 seeds have been provided 10 days chilling treatment before to test the germination to get the uniformity in germination. The laboratory experiment was carried out in a completely randomized design (CRD) to assess the different parameters of germination viz. germination percentage(GP), mean germination time (MGT), germination index (GI), time taken to 50% germination (T50), and coefficient of the velocity of germination (CVG) at four temperature regime of four cultivars. The ANOVA analysis revealed significant variability among the four cultivars for all germination parameters in all temperature treatment levels. The results of the experiment demonstrated that the storage temperature has a great influence on germination percentage (GP), mean germination time (MGT), germination index (GI), time taken to 50% germination (T50), and coefficient of the velocity of germination (CVG) with comparisons to the normal temperature stored seeds (20°C). The significant variation among these parameters for each cultivar demonstrated the significance of varied requirements like stored temperature for the long term storage of that particular cultivar.