Biologia plantarum 41:121-125, 1998 | DOI: 10.1023/A:1001729020924
Effect of Potassium on Potato Microtuber Production in vitro
The role of potassium nutrition in microtuber production was investigated in two potato cultivars belonging to different maturity groups. Alterations were made in Murashige and Skoog (MS) medium to obtain seven concentrations of potassium (10, 15, 20, 25, 30, 35 and 40 mM), and their effects were studied on microtuber number, microtuber mass and harvest index. In late cultivar Kufri Sindhuri, an increase in potassium concentration beyond 25 mM decreased the number of microtubers. Whereas, potassium did not show any inhibitory effect on microtuber number in early cultivar Kufri Ashoka. Potassium showed promoting effect on microtuber mass in both the cultivars. Maximum microtuber mass and harvest index were observed when the medium was supplemented with 40 mM potassium. Therefore, large size potato microtubers amenable to direct field planting can be induced in MS medium containing 40 mM potassium.
Keywords: micropropagation; mineral nutrition; Solanum tuberosum L
Subjects: in vitro culture, micropropagation; in vitro culture, potato microtuber production; microtuber, potato; potato, microtuber production; Solanum tuberosum
Published: January 1, 1998 Show citation
References
- Chandra, R., Randhawa, G.J., Chaudhari, D.R., Upadhaya, M.D.: Efficacy of triazole for in vitromicrotuber production in potato.-Potato Res. 35: 339-341, 1992.
Go to original source... - Estrada, R., Tovar, P., Dodds, J.H.: Induction of in vitrotubers in a broad range of potato genotypes.-Plant Cell Tissue Organ Cult. 7: 3-10, 1986. Go to original source...
- Garner, N., Blake, J.: The induction and development of potato microtubers in vitroon media free of growth regulating substances.-Ann. Bot. 63: 663-674, 1989. Go to original source...
- Gomez, K.A., Gomez, A.A.: Statistical Procedures for Agricultural Research.-John Wiley & Sons, New York 1984.
- Jones, E.D.: A current assessment of in vitroculture and other rapid multiplication methods in North America and Europe.-Amer. Potato J. 65: 209-220, 1988. Go to original source...
- Murashige, T., Skoog, F.: A revised medium for rapid growth and bioassays with tobacco tissue culture.-Physiol. Plant. 15: 473-497, 1962. Go to original source...
- Naik, P.S., Sarkar, D.: Influence of light-induced greening on storage of potato microtubers.-Biol. Plant. 39: 31-34, 1997. Go to original source...
- Palmer, C.E., Smith, O.E.: Cytokinins and tuber initiation in the potato Solanum tuberosumL.-Nature 221: 279-280, 1969. Go to original source...
- Pelacho, A.M., Mingo-Castel, A.M.: Jasmonic acid induces tuberization of potato stolons cultured in vitro.-Plant Physiol. 97: 1253-1255, 1991. Go to original source...
- Sarkar, D., Chandra, R., Naik, P.S.: Effect of inoculation density on potato micropropagation.-Plant Cell Tissue Organ Cult. 48: 63-66, 1997. Go to original source...
- Sharma, U.C., Arora, B.R.: Effect of N, P and K application in yield of potato tubers.-J. agr. Sci. 108: 321-328, 1987. Go to original source...
- Sharma, R.C., Sharma, H.C.: Varietal responses and quantitative contribution of nutrients to potato production.-J. agr. Sci. 170: 331-353, 1990.
- Wang, P.J., Hu, C.Y.: In vitromass tuberization and virus-free seed-potato production in Taiwan.-Amer. Potato J. 59: 33-37, 1982. Go to original source...
- Wang, P.J., Hu, C.Y.: Potato tissue culture and its applications in agriculture.-In: Li, P.H. (ed.): Potato Physiology. Pp. 503-577. Academic Press, London 1985. Go to original source...