PRODUKSI BIBIT KENTANG (Solanum tuberosum L.) G1 DARI STEK BATANG

This research was conducted to find out the best media and auxin for planting<br />potato cutting to produce G1 seed potato. Research was done at a shade house of<br />Kebun Bibit Hortikultura Kembang Merta, Candi Kuning Village, Baturiti, Tabanan<br />Regency, Bali. Were planted at the screen house for sprouting. Four weeks old of<br />shoots were used as cutting. Each cutting measured 10 cm. Stem cutting of G0 seed<br />potatoes was dipped in 2 different auxin types (Rootone F and auxin paste) and planted<br />in 2 different media (manure and charred rice husk). Results shows that the best<br />combination between media and auxin for stem cutting growth was charred rice husk<br />and Rootone F, in which 82.29% growth was recorded. Combination between charred<br />rice husk and Rootone F produced 12 more seed potatoes per plant, compared to other<br />treatment combination. In term of seed potato size, the highest number produced (80%)<br />was size SS (&lt;20 gram) , followed by size S (21-30 gram) which is 66%, size M (31-60<br />gram) which is 8% and size L (&gt;60%) of 2%.<br />Keyword : Potato (Solanum tuberosum L.), stem cuttings, seed production