Effect of Sucrose,GA and Liquid Medium on the Tuber Formation of Potato

doi:10.13560/j.cnki.biotech.bull.1985.2018-0355

Abstract

Abstract: Potato is the fourth largest food crop in the world. It has been used for both grain and vegetable and is rich in nutritional value. Potato tubers are the most economically valuable part of the potato. The formation process of potato tuber is regulated by a variety of regulatory pathways,the most important ones of which is the sucrose pathway and the gibberellin（GA）pathway. This experiment was designed to conduct orthogonal testing three factors of sucrose concentration,GA concentration and media type. By the statistics of potato tuber formation time,the number of potato tubers,potato average weight,and the rate of large potato,it was found that high concentration of sucrose advanced potato tubering,and liquid medium increased the potato weight and the rate of large potato. The addition of 8% sucrose and 0.1 mg/L GA in liquid MS medium resulted in advanced potato tuber formation as well as more and heavier potatoes.

Key words: sucrose, Gibberellin（GA）, liquid medium, potato tubers

HE Yi-xue, LIU Wen, SHEN Xiang-ling. Effect of Sucrose,GA and Liquid Medium on the Tuber Formation of Potato[J]. Biotechnology Bulletin, 2018, 34(7): 74-80.

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