Efficacy of GA3 on seed germination and seedling vigour of wood apple
Keywords:
GA3, Germination, Seedling Vigour Index, Wood AppleAbstract
Wood apple is an underutilized indigenous fruit tree belonging to the Rutaceae family. It is a slow-growing tree, and owing to this slow growth in the nursery, seedlings take longer to reach the graftable stage. An attempt was made to investigate the effect of GA3 on seed germination and seedling vigour at the nursery of Central Horticultural Experimental Station, ICAR-CIAH, Yejalpur, during June-November 2016-17. Seeds were treated with various concentrations of GA3 (0, 25, 50, 75, 100, 125, 150, 175, 200, 225, 250, and 275 mg/L), and soaked for 48 hours under laboratory conditions. The experiment was laid out in a Complete Randomized Design (CRD), replicated three times. A total of 50 seeds were treated with GA3 for each concentration. The results showed that different levels of GA3 enhanced seed germination and the growth of seedlings as compared to the control. Among the different concentrations of GA3, 150 mg/L exhibited the best response in terms of seed germination (91.98%), seedling shoot length (23.94 cm), root length (24.53 cm), seedling diameter (5.21 mm), number of leaves/seedling (21.23), primary branches/seedling (4.52), and vigour index (4458.27). Higher concentrations of GA3 above 150 mg/L did not improve seed germination and negatively affected the growth parameters. Based on the findings, it can be concluded that 150 mg/L GA3 is the most effective concentration for enhancing seed germination and vegetative growth of wood apple seedlings in nursery.Downloads
References
Abdul-Baki, A., and Anderson, J.D. 1973. Vigour determination in soybean seed by multiple criteria. Crop Science, 13: 630-633.
Black, M. 1980. Role of indigenous hormones in germination and dormancy of fruit crops. Israel Journal of Botany, 29: 181-192.
Dzayi, F. H., Rahman. 2010. Effect of GA3 and soaking time on seed germination and seedling growth of lemon (Citrus limon L.). High Diploma Thesis, College of Agriculture, University of Salahaddin - Erbil.
Goinez, K.A., and Gomez, A.A. 1984. Statistical procedures for agricultural research. 2nd Edition. Wiley Loter Science, Publication, New York (USA).
Hartmann, H.T., Kester, D.E., and Davies, F.T. 1990. Plant Propagation: Principles and Practices. Englewood Cliffs, NJ: Prentice-Hall.
Hiwak, S.S. 2015. Wood apple (Feronia limonia, Correa). In: Saroj P.L. Advances in Arid Horticulture: Production Technology of Arid and Semiarid Fruits, Vol. II, pp. 435-442.
International Seed Testing Association (ISTA). 1996. International rules for seed testing. Rules 1996.
Lande, S.B., Nirmal, V.S., and Kotecha, P.M. 2010. Studies on preparation of ready-to-serve beverages from wood apple pulp. Beverages and Food World, 37(4): 69-70.
Singh, A.K., Singh, S., Yadav, V., and Sharma, B.O. 2016. Genetic variability in wood apple (Feronia limonia) from Gujarat, India. Indian Journal of Agricultural Sciences, 86(11): 1504-1508.
Swamy, G.S.K., Patil, P.B., Athani, S.I., and Prabhushankar, D.S. 1999. Effect of organic and inorganic substances on germination of jamun (Syzygium cumini) seeds. Advances in Agricultural Research in India, 11: 89-91.
Taiz, L., and Zeiger, E. 2002. Plant Physiology. 3rd Ed. USA: Sinauer Associates, Inc.: 544-546.
Vaidyaralan, V.P.S., Arya, V.S., and Kouakkal. 1995. Indian medicinal plants. Vol. III. Orient Longman Ltd., Madras: 327-332.
Vanangamudi, K., and Vanangamudi, M. 2003. Response of tamarind (Tamarindus indica L.) to presowing seed treatment with growth stimulants. Journal of Tropical Forest Science, 15(1): 6-11.
