Shankar M and Krishna A*
Department of Forest Biology and Tree Improvement, College of Forestry, Sirsi-581 401, University of Agricultural Sciences, Dharwad, Karnataka, India
Email:krishnaa @uasd.in.
Received-08.08.2018, Revised-26.08.2018
Abstract: A laboratory study was undertaken at Department of Forest Biology and Tree Improvement, College of Forestry, Sirsi, University of Agriculture Sciences, Dharwad during 2016-17 to find out the suitable media and containers for storage of Garcinia gummi-gutta seeds. Uniform sized and healthy seeds were stored in different medium and containers under ambient temperatures at laboratory using completely randomized design. Seed without any medium was treated as control. In treatment T2 dried seeds were mixed with ash at the rate of 1:2 ratios. One kg of dried seed packed in the perforated gunny bag was considered as treatment (T3). In treatment T4 and T5 dried seeds were mixed with sawdust and sand at the rate of 1:2 ratios respectively. One kg of dried seed packed in the pet jar was T6 treatment. At interval of every 30 days, 100 seeds from each treatment in four replications were taken up from stored seed lot till six months of storage for germination studies. Seeds were sown at monthly interval up to six months.During six months of storage, the fresh seeds recorded maximum germination (18.75 per cent) and decline in germination was noticed with advancement in the storage period. Among the storage media and container, seed stored in pet jar recorded maximum germination per cent (14.50 per cent, 11.50 per cent, 9 per cent and 4.75 per cent) in third, fourth, fifth and sixth months of storage respectively. Germination per cent in control is negligible after 3 months of storage. Maximum mean daily germination and peak value was in seed stored in pet jar and the lowest in control and sand media at end of six months of storage. The mean daily seed germination, peak value and germination value were exhibiting the negative trend as advancement in seed storage period. The seedling length was non-significantly influenced by all storage media in first and third months of storage. Higher seedling length (11.70 cm, 12.98 cm) was recorded in pet jar at fourth and fifth months of storage respectively. Seedling vigour index was non-significant at first month of storage of seed at different medium. At the end of second month of storage, the maximum seedling vigour index (194) was recorded in saw dust.
Keywords: Pet jar, saw dust, sand germination, vigour
References
Berjak, P. and Pammenter, N. W. (1996). Recalcitrant (Desiccation –sensitive) seeds. In- Innovations in tropical tree seed technology. Proc. of the IUFRO symposium of the Project Group P.2.04.00 ‘seed problems’, Danida, Denmark. pp. 14-29.
Berjak, P. and Pammenter, N. W. (2000). Orthodox and Recalcitrant Seeds. Tropical tree seed manual. USDA Forest Service. pp. 137-147.
Chaturvedi, O. P. and Das, D. K. (2004). Effect of seed drying, storage and pretreatment on the germination and growth of Acacia auriculiformis and Acacia nilotica seedlings. Indian J. For., 27(1):75-81.
Ellis, R. H., Hong, T. D., Robert, E. H. and Tao, K. L. (1990). Low moisture content limits to relations between seed longevity and moisture. Ann. Bot., 65: 493-504.
Farrant, J. M., Pammanter, N. W. and Berjak, P. (1986). The increasing desiccation sensitivity of recalcitrant Avicennia mariana seeds with storage time. Physiol. Pl., 67: 291-298.
Gouda, M., Patil, S. K., Manjunatha, G. O. and Kumar. P. H. (2006). Influence of seed storage and pre-sowing treatments on germination of Kokum (Garcinia indica). My For., 42(4): 389-396.
Kumar, K. and Chacko, K. C. (1999). Seed characterisation and germination of a shola forest tree: Bhesa indica (BEDD). Annals of For., 1(1): 27-32.
Singh, B., Bhatt, B. P. and Prasad, P. (2009). Effect of storage period on seed germination of Celtis australis L. In Central Himalayas India. Indian J. Agrofor., 11(2):62-65.
Srimathi, P. (1997). Research focus on seed collection, processing, storage of Amla (Emblica officianalis Gaertn.), Jamun (Syzygium cumnii Skeels) and ber (Zizypus mauritiana Lamk). Ph.D. Thesis, Department of Seed Science and Technology, TNAU, Coimbatore.