Volume: 36 Issue: 1
Effect of stand geometry and plant growth regulators on root – shoot ratio in Ashwagandha (Withania somnifera Dunal.)
Year: 2014, Page: 1-7, Doi: https://doi.org/10.62029/jmaps.v36i1.shukla
Received: Jan. 7, 2014 Accepted: May 5, 2014 Published: July 1, 2014
An experiment was carried out in the Department of Horticulture, Janta College, Bakewar, Etawah (UP) during two crop seasons in split plot design, using the commercial cultivars of W. somnifera viz., cv. Poshita and cv. JA - 20 as main plot. Two planting distance 30 x 30 cm2 and 30 x 20 cm2 were used as sub plot. The plants were raised in nursery bed and transplanted after 30 days of sowing. After 30, 60 and 90 days of transplanting the plants were sprayed with IAA 100 ppm, IAA 200 ppm, GA 50 ppm, GA 100 ppm, CCC 2000 ppm and CCC 3000 ppm solutions, whereas in control they were sprayed with distilled water (sub sub-plot). Results abstracted that cv Poshita produced higher root – shoot ratio as compare to cv JA – Planting distance 20. 30 x 20 cm2 gave maximum root yield per hectare however stand geometry had not any significant effect on root yield per plant. Both the concentration of CCC (2000 and 3000 ppm) provided maximum root – shoot ratio with highest root yield per plant and per hectare.
Keywords: Ashwagandha, Dry root yield, Plant growth regulators, Root - shoot ratio, Stand geometry
Audus LJ. 1959. Plant gowth substances ed. Polumin N. Leonard Hill Ltd., London. Pp. 328.
Barthkumar TR, Manivannan K, Chezhian P.2001. Studies on the effect of phosphobacteria and plant growth regulators on growth, yield and alkaloid content of ashwagandha (Withania somnifera Dunal.) Research on Crops 2: 351 – 358.
Chhonkar VS and Singh R. 1964. Effect of gibberellic acid on growth yield and quality of cabbage (Brassica oleracea var. capitata L.). Indian Hort 21: 57-63.
Currah IE, Thomas TH. 1979. Vegetable plant part relationship. III. Modification of carrot (Daucus carota L.) root and shoot weight by gibberellic acid and daminozide. Ann Bot 436: 501-511.
Hudge VS, Shobhane MR, Dhoble MV, Dhopte AM. 2002. Suitable medicinal and aromatic crop plants for dry land farming. Agrotechnology for Dry Land Farming. Pp. 593-612.
Iersel, MV, Van IM 1998. Auxins effect posttrans plant shoot and root growth of Vinca seedlings. Hort Sci 33: 1210-1214.
Joshi NC, Singh DK. 2003. Effect of plant bioregulators on growth and yield of chilli (Capsicum annuum L.). Prog Hort 35: 212-215.
Manish Agarwal, Agarwal MK, Singh P, Gupta AK. 2003. Economic evaluation of different treatment combinations of sowing time and spacing in ashwagandha. Curr Agri 27: 109-110.
Mansy AA, Beheidhi M, Fouly MM.1972.Growth and yield responses of carrots to chlormequat chloride (CCC). Gartenbauwissenschaft 37 : 511-517.
Masoud AN, Sciucheti LA, Farnsworth NR, Bhanster RN, Meer MA 1968. Effect of gibberellic acid on the growth, alkaloid production and VLB content of Catharanthus roseus. J Pharm Sci 57: 589-593.
Misra HO, Sharma JR, Lal RK, Gupta MM, Shukla N, Singh NK, Singh N. 2001. Registration of new variety Poshita of Withania somnifera. J Med Arom Pl Sci 23: 97 – 98.
Naquib NY, Khalil MY, Sherbeny SE. 2003.The influence of indole acetic acid, phenylalanine and methionine on the growth, amino acid and alkaloid production of periwinkle (Catharanthus roseus G. Don) plants. Bull Fac Agri, Cairo University 54: 217-237.
Nigam KB, Patidar H, Kandalkar VS, Pathan MA. 1991. A new promising pre-release variety, ‘WS-20’, of ashwagandha (Withania somnifera). Indian J Agric Sci 61: 581– 582.
Nigam KB, Rawat GS, Prasad B. 1984. Effect of method of sowing, plant density and fertility level on asgandh (Withania somnifera Dunal.). South Indian Horticulture 32: 356 – 359.
Pakkiyanathan K, Pasha YN, Reddy YN, Sathe A. 2004. Effect of spacing and phosphoruslevel on growth and root yield of ashwagandha (Withania somnifera Dunal.). Indian J Hort 61: 195-197.
Sarma S, Hussain S. 1979. Note on the effect of gibberellic acid and B-9 on the growth and chlorophyll content of carrot. Indian J Agric Sci 49: 815-816.
Steward FC, Krikorian AD. 1971. Plant chemicals and growth. Academic Press, NY.
Stowe BB, Yamaki T. 1957. The history and physical action of the gibberellins. A Rev Pl Physiol 8: 181-216.
Yaseen M, Tajuddin. 1998. Effect of plant growth regulators on yield, oil composition and artemisinin of Artemisia annua under temperate conditions. J Med Arom Pl Sci 20: 1038 – 1041.
© Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow (India)
Hari Yogendra Shukla. 2014. Effect of stand geometry and plant growth regulators on root – shoot ratio in Ashwagandha (Withania somnifera Dunal.). J Med Aromat Plant Sci 36: 1-7.
