Optimization of Potato Cuttings of Granola Kembang Cultivars with the Application of Auxin and Paclobutrazol for Tuber Production

Every year the need for potatoes continues to increase, both for
the industry as processed potatoes and vegetable potatoes. One of the
important things in potato cultivation is the use of potato seeds, quality
seeds are the key to potato crop productivity. The purpose of this study was
to determine the optimal concentration of different auxin and paclobutrazol
on the growth of cuttings and the production of potato tubers (tubers for
seeds). This study used a Randomized Block Design (RBD) with two
treatment factors, namely the concentration of auxin (Rootone F) with
three levels and the concentration of paclobutrazol (three levels), and
repeated three times. The results showed that additional treatments were
able to inhibit plant height at 42 DAP (Day After Planting). The
concentration of 200 mg L-1 auxin and 100 mg L-1 Paclobutrazol were
more effective on tuber production. The combination of 200 mg L-1 auxin
and 100 mg L-1 Paclobutrazol treatment resulted in an average number of
tubers 12 tubers per plant and tuber classification based on tuber weight
obtained an average number of bulbs grade S 6.83, grade M 2.33, and
grade L 0.5.