Abstract
The combined effect of indole-3-acetic acid and mepiquat chloride on the endogenous gibberellins of aerial and underground tubers as well as tuber yield was studied on Chinese yam plant. Two plant hormones were combined in the following concentrations: IAA 50, 100, 200, and 300 ppm, plus MC 600 ppm. Combined plant hormones were foliar-sprayed once in early July. Exogenously applied IAA combining mepiquat chloride increased fresh weight of the aerial and underground tubers affecting the increase of endogenous gibberellins. The results suggest that IAA is likely to be one of the active plant hormones responsible for aerial tuber growth and enlargement, stimulating the promotion of endogenous gibberellin when combined with mepiquat chloride.
Similar content being viewed by others
References
Brian PW, Petty JHP, Richmond PT. 1959. Extended dormancy of deciduous woody plants treated in autumn with gibberellic acid. Nature 184: 69
Kim SK, Lee SC, Shin DH, Jang SW, Nam JW, Lee IJ. 2003a. Quantification of endogenous gibberellins in leaves and tubers of Chinese yam, Dioscorea opposita Thunb. cv. Tsukune during tuber enlargement. Plant Growth Regul. 39: 125–130
Kim SK, Lee SC, Choi HJ, Kim KU, Lee IJ. 2003b. Bulbil for mation and yield responses of Chinese yam to application of gibberellic acid, mepiquat chloride and trinexapac-ethyl. J. Agron. Crop Sci. 189: 255–260
Kim SK, Lee SC, Kim KM, Lee BH, Lee IJ. 2003c. Possible residual effects of gibberellic acid and gibberellins biosynthe sis inhibitors on sprouting, early bulbil formation and tuber yield in Chinese yam. J. Agron. Crop Sci. 189: 428–432
Lee IJ, Foster KR, Morgan PW. 1998. Photoperiod control of gibberellin levels and flowering in Sorghum. Plant Physiol. 116: 1003–101
Marchner H, Sattelmacher B, Bangerth F. 2006. Growth rate of potato tubers and endogenous contents of indoleacetic acid and abscisic acid. Physiol. Plant. 60: 16–20
Nagao M, Mitsui E. 1959. Studies on the formation and sprout ing of aerial tubers in Begonia evansiana Andr. I. Effect of gibberellin on the dormancy of aerial tuber. — Sci. Rep. Tohoku Univ. 4th Ser. (Biol.) 25: 199–205
Okagami N, Nagao M. 1971. Gibberellin-induced dormancy in aerial tubers of Dioscorea. Planta 101: 91–94
Okagami N, Nagao M. 1973. Gibberellin-induced dormancy in Begonia aerial tubers. Increase of the growth inhibitor con tent by gibberellin treatment. Plant Cell Physiol. 14: 1063–1072
Okagami N, Tanno N. 1977. Dormancy in Dioscorea: Generality of gibberellin-induced dormancy in asexual dormant organs. Plant Cell Physiol. 18: 309–316
Romanov GA, Aksenvova NP, Konstantinova TN, Golyanovskya SA, Kossmann J, Willmitzer L. 2000. Effect of indole-3-acetic acid and kinetin on tuberisation parameters of different cultivars and transgenic lines of potato in vitro. Plant Growth Regul. 32: 245–251
Ross JJ, O’Neill DP, Wolbang CM, Symons GM, Reid JB. 2001. Auxin-gibberellin and their role in plant growth. J. Plant Growth Regul. 20: 336–353
Weaver RJ. 1959. Prolonging dormancy in Vitis vinifera with gibberellin. Nature 183: 1198–1199
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Kim, S.K., Choi, H.J., Lee, I.J. et al. Effect of combined indole acetic acid and mepiquat chloride on endogenous gibberellins and tuber growth in Chinese yam (Dioscorea opposita Thunb.). J. Crop Sci. Biotechnol. 13, 29–32 (2010). https://doi.org/10.1007/s12892-009-0115-7
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12892-009-0115-7