عنوان مقاله [English]
In this research, the effect of different concentrations of Paclobutrazol (0, 200, 300, 400mg.L-1) and different application times of paclobutrazol (beginning of tuberization, 10, 20 and 30 days after tuberization) on some qualitative and quantitative traits of ‘Sante’ potato cultivar were investigated. Test was performed in a factorial experiment based on randomized complete blocks design with two factors by 3 replications. Paclobutrazol (Culture commercial suspension with 250gr.L-1 active ingredient of PBZ) was used as foliar spray on potato plants. Conclusion of analysis variances demonstrated that effect of paclobutrazol application time was significant (p≤0.01) on large, small and seed tuber size production. The effect of Paclobutrazol concentration showed significant difference on tuber dry matter percentage, large, small, potato seed tuber, total number, mean weight of tuber and tuber number per plant. Comparison means results showed that use of poclobutrazol with concentrations of 300 and 400mg. L-1 increased amount of tuber in potato plants. As a result, number of total tubers per plant and number of tuber seeds have been increased by 9.8% and 13.2% respectively. Although application of paclobutrazol in these two levels significantly increased mean number of tuber per plant but had no significant effect on total yield comparison with control treatment. By results of this experiment we can conclude that application of paclobutrazol on potato plant will be considerably able to increase percentage of seed tuber size. Consequently, this situation leads to more efficiency of tuber production per area unit in potato seed farms.
پرویزی، خ. و محجوب، م. 1384. معرفی ویژگیهای مهم زراعی ارقام تجاری سیبزمینی. نشریه تحقیقی- ترویجی سازمان جهاد کشاورزی استان همدان، 52 صفحه.
سلطانی، ه. و محجوب، م. 1386. مدیریت مزارع مینی تیوبر سیب زمینی. نشریه ترویجی سازمان جهاد کشاورزی همدان، 50 صفحه.
Amador, V., Bou, J., Martines, G. J., Monte, E., Rodriguez –Falcon, M., Russo, E. and Part, S. 2001. Regulation of potato tuberization by day length and gibberellins. International. Journal Development of Biology, 45: 37-38.
Bandra, P. M. S. and Tanino, K. K. 1995. Paclobutrazole enhances minituber production in Norland potato. Journal of Plant Growth Regulation, 14: 55-151.
Bandra, P. M. S., Tanino, K. K. and Watere, D. D. 1998. Effect of pot size and timing of plant growth regulator treatmements on growth and tuber yield in green house-grown “Norland” and “Russet Burbank” potatoes. Journal of Plant Growth Regulation, 17: 75-79.
Brown, P., Morris, S. and Smith, K. 2003. Application of the growth regulator to increase potato number in seed crop. Potato and Vegetable ARAC project Abstract 125p.
Escalante, B. Z. and Langille, A. R. 1995. R0le of growth regulators in vitro Rhizome growth of potato. Hort Science, 30: 1248-1250.
Ewing, E. E. 1997. The Potato Crop. Wien, H.C(ed). The physiology of vegetable crops. CABI publishing, P. 295-340.
Fernie, A. and Willmitzer, L. 2001. Molecular and biochemical triggers of potato tuber development. Plant Physiology, 127: 1459-1465.
Fletcher, R. A., Galley, S. N. and Davis, T. D. 2000. Diazoles as plant growth regulators and stress protectants. Horticultural Review, 24: 55-118.
Hughes, B. R. and Keith, C. N. F. 2003. Effect of paclobutrazole treatments on growth and tuber yields in greenhouse-grown “shepody” seed potatoes. ISHS Acta Horticulture, 619-629.
Jackson, D. S. 1999. Multiple signaling pathways control tuber induction in potato plant. Plant Physiology Journal, 119: 1-8.
Lim, H. T., Yoon, C. S., Choi, S. P. and Dhital, S. P. 2004. Application of gibberellic acid and paclobutrazole for efficient production of potato minituber and their dormancy breaking under soilless culture system. Journal Korean Society of Horticultural Science, 45: 189-193.
Maleki Lajayer, H., Esmaielpour, B. and Chamani, E. 2011. Hinokitiol and activated charcoal influence the microtuberization and growth of potato (Solanum tuberasum cv. Agria) plantlets In vitro. Australian Journal of Crop Science, 5 (11): 1481-1485.
Rosanna, M. M. and Baharuddin, E. 2014. The effectiveness of paclobutrazol and organic fertilizer for the growth and yield of potatoes (Solanum tuberosum L.) in medium plain. International Journal Science and Technology Research, 3 (7): 101-108.
Rodriguez- Falcon, M., Bue, J. and Part, S. 2006. Seasonal control of tuberization in potato: conversed elements with the flowering response. Annual Review of Plant Biology, 57: 80-151.
Obrien, P. J., Allen, E. J. and Friman, D. M. 1998. A review of some studies into tuber initiation in potato crops. Journal of Agricultural Science, 130: 251-270.
Sharma, N., Kaur, N. and Gupta, A. K. 1998. Effect of gibberellic acid and chlorocholin chloride on tuberization and growth of potato. Journal of The Science of Food and Agriculture, 78: 466-470.
Tekalign, T. 2006. Response of potato grown under non-inductive condition to paclobutrozol. Ph.D Thesis Pretoria University, South Africa. 162 p.
Tekalign, T. and Hammes, P. S. 2004. Response of potato grown under non-inductive condition to paclobutrazole: shoot growth, chlorophyll content, net photosynthesis, assimilate partitioning, tuber yield, quality, and dormancy. Journal of Plant Growth Regulation, 43: 227-236.