Field experiments were conducted in a loamy sand soil during 2006 and 2007 at Punjab Agriculture University, Ludhiana to evaluate the performance of Stevia rebaudiana Bertoni under varying planting geometry. The studies revealed that in case of row to row spacing, highest number of leaves per plant (533.0, 447.6), leaf area (8113.1, 6322.6 cm2/plant), leaf area index (5.1, 8.7) and dry matter accumulation per plant (86.0, 76.9 g/plant) during 2006 and 2007, respectively were found under wider row spacing of 75 cm. Which was significantly higher than narrower row spacing of 60 cm and 45 cm. Whereas, the fresh biomass yield (9861 and 11801 kg/ha), dry biomass (2080 and 2550 kg/ha), leaf yield (6129 and 4414 kg/ha) and stem yields (7611 and 5447 kg/ha) during 2006 and 2007, respectively and glycoside yield were registered higher under closer row spacing of 45 cm than the wider row spacing of 60 cm and 75 cm. In plant to plant spacings, the maximum number of leaves (5681.3 cm2/plant) was recorded under plant spacing of 45 cm which was statistically at par with plants spaced at 37.5 cm and 30.0 cm but significantly higher than 22.5 cm and 15.0 cm plant spacing, leaf area and dry matter accumulation per plant were highest with than other closer plant spacings.Whereas, the fresh and dry biomass, leaf and stem yields and glycoside yield were recorded highest under closer plant spacing of 15 cm which was statistically at par with 22.5 cm plant spacing.
Glycoside yield, Spacing Yield, Stevia
Cheema, H.S. and Singh. B. (1991). Software Statistical package CPCS 1. Department of Statistics, Punjab Ag-ric Univ, Ludhiana, India.
Cochran, W.G, and Cox,G.M. (1967). Experimental designs. Asia Publishing House New Delhi.
Tollenear. M. and Aguilera. A. (1992). Radiation use efficiency of an old and a new maize hybrid. Agron J, 84:536–541.
Donalisio, M.G., Duarte, F.R. and Souza. C.J. (1982). Estevia (Stevia rebaudiana). Agronomico, campinus (Brazil) 34:65-68.
Duke, J.A., deCellier, J.C. (1993). Stevia rebaudiana (Bert.). In: Duke J, editor. CRC handbook of alternative cash crops. London:CRC Press. p. 422–424.
Dwyer, L.M., Tollenaar, M. and Stewar,t D.W. (1991). Changes in plant density dependence of leaf photosynthesis of maize hybrids. Can. J. Plant Sci.,71: 1-11.
Jackson, M.L. (1967.Soil chemical analysis. Prentice Hall of India Pvt. Ltd. New Delhi.
Kumar, R., Sharma, S., Ramesh, K., Prasad, R., Pathania, V., Singh, B. and Singh, R.D. (2012). Effect of agrotechniques on the performance of natural sweetener plant – Stevia (Stevia rebaudiana Bertoni) under western Himalayan conditions. Ind J Agron. 57:74–81.
Kumar, R., Sharma, S. and Prasad, R. (2013). Yield, nutrient uptake and quality of stevia (Stevia rebaudiana Bertoni) as affected by organic sources of nutrient. Comm. Soil Sci. Plant Analysis. 44,1-13. DOI:10.1080/ 00103624. 2013. 832285.
Mishra, H., Soni, M., Silawat, N., Mehta, D., Mehta, B.K. and Jain. D.C (2011). Antidiabetic activity of medium-polar extract from the leaves of Stevia rebaudiana Bert. (Bertoni) on alloxan- induced diabetic rats. J Pharm Bioallied Sci., 3:242–248.
Murayama, S. Kayano, R. Miyazato, K. and Nose. A .(1980). Studies on the cultivation of Stevia rebaudiana Bertoni II. Effects of fertilizer rates , planting density and seedling clones on growth and yield. Science Bulletin of the college of Agriculture, University of the Ryakus, Okinawa.27:1-8
Olsen.S.R, Cole. C.V., Watanable, F.S. and Dean, L.A. (1954). Estimation of available phosphorus by extraction with sodium bicarbonate. USDA Circ 939:19, Washington DC.
Piper, C.S (1966). Soil and Plant analysis. Hans publishers, Bombay , India.
Ramesh, K., Singh, V. and Ahuja, P.S. (2007) Production potential of Stevia rebaudiana (Bert.) Bertoni under intercropping systems. Arch Agron soil sci, 53 (4): 442-58.
Subbiah, B.V. and Asija, H.L. (1956). A rapid procedure for the estimation of the available nitrogen in soils. Current Sci, 25:259-60.
This work is licensed under Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) © Author (s)