EFFECT OF GROWTH REGULATORS ON POTATO MICROTUBER FORMATION AND STORAGE EFFECT ON MICROTUBER DORMANCY

S.J. MACWAN¹*, N.V. UPADHYAY², Y.M. SHUKLA³, P.R. VAISHNAV^4
1Department of Plant Physiology Bansilal Amrutlal College of Agriculture, Anand Agricultural University, Anand, Gujarat 388110
²Main Vegetable Research Station, Anand, Anand Agricultural University, Anand, Gujarat 388110
³College of Polytechnique and Agriculture, Vaso, 387380, Anand Agricultural University, Anand, Gujarat 388110
⁴Department of Agricultural Statistics, Bansilal Amrutlal College of Agriculture, Anand Agricultural University, Anand, Gujarat 388110
* Corresponding Author : sjmacwan@aau.in

Received : 23-05-2017     Accepted : 05-06-2017     Published : 30-06-2017
Volume : 9     Issue : 30       Pages : 4408 - 4411
Int J Agr Sci 9.30 (2017):4408-4411

Keywords : Growth Regulators, Potato, Microtuber, Storage Effect, Dormancy
Conflict of Interest : None declared
Acknowledgements/Funding : Author acknowledges Emeritus Scientist, CSIR, Dr. A.R. Mehta for his valuable remarks and suggestions for research work.
Author Contribution : All author equally contributed

Effect of microtuber formation in long term keeping with and without growth retardants under dark conditions revealed in presence of BAP and CCC, the period of microtuber formation was reduced from120day to 90 days. The optimum level of 5 mgl-1 BA and 500 mgl-1 CCC obtained maximum weight and size of microtuber. The varietal differences were significant and Kufri Pukhraj found best for the weight and size of microtuber. The level 500 mgl-1 CCC favours the increase microtuber weight irrespective of the presence of cytokinin.CCC at both lower and higher level than this reduced the microtuber weight. Effect of storage temperature and duration of storage on microtuber dormancy were evaluated and find out that the best dormancy breaking treatment was 25 °C. Among different temperature 4°C temperature reported no germination and may be used for storing the microtuber up to six month period.

1. Chandra R. and Naik S.P. (1993) Potato tissue and cell culture.In Advances in horticulture Vol. 7.Potato eds. by K.L. Chadha and J.S. Grewal, Pub.by Malhotra Publishing House, New Delhi.
2. Coleman W.K., Donnelly D.J. and Coleman S.E. (2001) Amer. J. of Potato Res., 78, 47-55.
3. Wiersema S.G. (1986) Am. Potato J., 63, p. 465–472
4. Tugrul S. and Samanci B. (2001) Potato Abstr., 26,86.
5. Hossain M.J. (2005) Plant Tissue Cult. & Biotech., 15(2), 157-166.
6. El-Sawy A., Bekheet S. and Aly U.I. (2007) In J Agri Biol., 9(5), 675-680.
7. Anoop B., Chauhan J.S. (2009) Nature and Science, 7(9),31-34.
8. El Dessoky S. Dessoky, Attia O. Attia, Ismail A. Ismail and Ehab I. El-Hallous (2016) International Journal of Advanced, 4(1), 684– 689
9. Chankya M.S., Maurya K.A. and Hargobind W.F. (2015) Afr. J. Crop Sci., 3(5), 176-186.
10. Palmer C.E. and Smith O.E. (1969) Nature, 221, 279-280
11. Yamamoto T. and Nakata K. (1997) Jpn. J. Crop Sci., 66 (4), 663-668.
12. Hussey G. and Stacey N.J.(1984) Annals of Botany, 53, 565-578.
13. Estrada R., Tovar P. and Dodds J.H. (1986) Plant Cell Tissue Organ Cult., 7, 3-10.
14. Desire S., Couillerot J.P. and Vasseur J. (1995) Acta bot Gallica, 142, 371-378.