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Micropropagation of potato (Solanum tuberosum L.) var. Atlantic on various culture media composition

Potato is included in one of the three most important crops globally after paddy and wheat because it contributes to staple food for humans around the world. In Indonesia, potato prioritizes its development because of non-rice carbohydrate sources and potential in food diversification programs. In Lampung, potato productivity decreased significantly from 2017 to 2018, resulting in a negative growth rate (-33%). One of the factors that cause the low productivity of potatoes is the limited availability of superior seeds. Micropropagation can be an alternative to solve this problem. This research aimed to investigate the growth response of potato var Atlantic on various culture media and obtain the most appropriate culture media for potato shoots induction and multiplication. This research was conducted at the Plant Tissue Culture Laboratory, Politeknik Negeri Lampung, from June—September 2020. Treatments were single arranged in a completely randomized design with three replications, and each replication consisted of three culture bottles containing one explant. Data analysis using ANOVA and HSD test in 5 % alpha. Based on the result of this research, it can be concluded that the potato var Atlantic culture showed different responses on the various components of culture media, and MS media with 0.5 mg l -1 2-iP is the most appropriate culture media for potato micropropagation.