Volume: 37 Issue: 2
Pre-treatments for overcoming dormancy in Sida alnifolia L.
Year: 2015, Page: 41-45, Doi: https://doi.org/10.62029/jmaps.v37i2.Netekal
Received: Nov. 21, 2014 Accepted: July 18, 2015 Published: Dec. 31, 2015
Seeds of Sida species are reported to exhibit seed coat imposed dormancy posing serve problems in germination. In the present study some Pre-treatments for overcoming dormancy in Sida alnifolia L. were standardized. Among the eighteen pre-treatments tried for improving germination, chemical scarification using concentrated H2SO4 was significantly superior and recorded higher germination percentage and speed. Untreated seeds failed to germinate. Scarification of seeds with concentrated H2SO4 for higher duration of 30 minutes was selected as the best pre-treatment considering improvement in water imbibition, germination percentage, speed of germination, growth and vigour of the seedlings alongwith significant reduction in the intensity of dormancy.
Keywords: Dormancy, Germination, Pre-treatments, Scarification, Sida alnifolia
Abdul-Baki AA, Anderson JD. 1972. Physiological and biochemical deterioration of seeds. In Seed Biology (Ed. TT Kozlowski), Academic Press, New York, pp. 283-309.
Bewley JD, Black M. 1994. Seed Physiology of Development and Germination II Edition. Springer Verlag, New York, pp. 1-18.
Chauhan BS, Johnson DE. 2008. Dormancy, germination and emergence of Sida rhombifolia L. Indian J Weed Sci 40: 1-2.
Egley GH. 1976. Germination of developing prickly Sida seeds. Weed Sci 24: 239-243.
Egley GM. 1989. Water-impermeable seed coverings as barriers to germination. In Recent Advances in the Development and Germination of Seeds (Ed. RB Taylorson), New York Plenum Press, New York, USA, pp. 207-223.
Karou D, Savadogo A, Canini A, Yamegol S, Montesano C, Simpore J, Colizzi V, Traore SA. 2005. Anti bacterial activity of alkaloids from Sida acuta. Afr J Biotechnol 4: 1452-1457.
Lissy KP. 2004. A comprehensive investigation into some selected species of Sida Linn. with reference to their substitutes and adulterants. Ph.D. Thesis, Mahatma Gandhi University, Kottayam, Kerala, India, 125p.
Maguire JD. 1962. Speed of germination aid in selection and evaluation for seedling emergence and vigour. Crop Sci 2: 176-177.
Packa D, Kwiatkowski J, Graban L, Lajszner W. 2014. Germination and dormancy of Sida hermaphrodita seeds. Seed Sci Technol 42(1): 1-15.
Pedroso DC, Menezes VO, Lopes SJ, Silva ACF, Tedesco SB. 2007. In vitro germination tests of Sida rhombifolia L . seed s. Agrociencia 11: 90-96.
Roberts EH, Smith RD. 1977. Dormancy and the pentose phosphate pathway. In Physiology and Biochemistry of Seed Dormancy and Germination (Ed. AA Khan), Elsevier Press, Amsterdam, pp. 385-411.
Sasidharan N, Muraleedharan PK. 2009. The raw drugs requirement of Ayurvedic medicine manufacturing industry in Kerala. KFRI Research Report No. 322. Kerala Forest Research Institute, Peechi, Thrissur, Kerala, India.
Seal S, Gupta K. 1998. Germination behaviours of two species of Sida, a medicinal plant. J Trop Ecol 39: 279-287.
Shooshtarian S, Salehi H. 2010. Enhancing Alcea aucheri (Boiss.) Alef. seed germination by application of some scarification treatments. Adv Environ Biol 4: 216-219.
Sivarajan VV, Pradeep AK. 1996. Malvaceae of Southern Peninsular India: A Taxonomic Monograph. Daya Publishing House, New Delhi, pp. 224-287.
Swain SK, Sahoo P, Patnaik MC. 2001. Seed dormancy in groundnut (Arachis hypogea L.) -variability for intensity and duration. Seed Res 29: 13-17.
Veeresh N. 2014. Seed production potential, dormancy and seed storage behaviour in Sida spp. M.Sc (Hort) Thesis, Kerala Agricultural University, Vellanikkara, Thrissur, Kerala, India, 119p.
© Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow (India)
Veeresh Netekal, Alice K, Asha SM, Girija T. 2015. Pre-treatments for overcoming dormancy in Sida alnifolia L. J Med Aromat Plant Sci 37: 41-45.
