›› 2018, Vol. 30 ›› Issue (6): 918-925.DOI: 10.3969/j.issn.1004-1524.2018.06.05

• Crop Science • Previous Articles     Next Articles

Optimization of efficient regeneration system in stem of potato using response surface methodology

JIANG Linjuan1, ZOU Xue1, HUANG Xueli1, NI Su1, LI Liqin1, YANG Shimin1, 2, *   

  1. 1. College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China;
    2.National Demonstration Center for Experimental Crop Science Education, Sichuan Agricultural University, Chengdu 611130, China
  • Received:2017-09-04 Online:2018-06-20 Published:2018-07-02

Abstract: To establish the optimal hormone concentrations of culture medium for efficient regeneration of potato stem callus tissue, as well as build a new system for tissue culture and rapid propagation technology, stem of Chuanyu No.10 was employed as explants to induce callus tissue, and the Box-Behnken design method of response surface methodology (RSM) was used to research the effect of TDZ, 2,4-D and GA3 on the differentiation of potato callus. Meanwhile, the hormone concentrations were optimized. The results showed that the sensitivity of the hormone concentrations in culture medium to potato callus budding from the response surface method optimization model is TDZ>GA3>2,4-D. The determination conefficient R2 of the model was 0.992 1, the optimal medium for adventitious bud differentiation from stem callus of Chuanyu No.10 was MS+2.02 mg·L-1 TDZ+0.08 mg·L-1 2,4-D+2.25 mg·L-1 GA3.In this condition, the budding rate was actual measured, which was consistent with the predicted values. That confirmed the validity of the model.

Key words: potato, callus, response surface method, medium

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