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Growth and Yield of Cultivar Atlantic Potato in Medium Altitude with Paclobutrazol Application and Different Amount of Watering

Growth and Yield of Cultivar Atlantic Potato in Medium Altitude with Paclobutrazol Application and Different Amount of Watering
Jajang Sauman Hamdani, Kusumiyati, Yayat Rochayat Suradinata
Universitas Padjadjaran, Asian Journal of Crop Science 8 (3-4): 103-108, 2016, ISSN 1994-7879, DOI: 10.3923/ajcs.2016.103.108
Bahasa Inggris
Universitas Padjadjaran, Asian Journal of Crop Science 8 (3-4): 103-108, 2016, ISSN 1994-7879, DOI: 10.3923/ajcs.2016.103.108
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Objective: The objective of this research was to study the growth and yield of Atlantic Potato cultivar grown in medium altitude areas with different amount of watering. Methodology: This study was conducted in search station of Agriculture Faculty of Padjadjaran University located in Jatinangor at the altitude of 685 m.a.s.l., at D3 rainfall rate in Inseptisol soil. A split plot design was used during the experiment. The main plot factor was using paclobutrazol at 3 different levels of concentrations (0, 50 and 100 ppm) and the second factor was watered at 4 different levels (100, 85, 70 and 55% water of field capacity). Results: The experiment result showed that applying 100 ppm of paclobutrazol could increase the tubers weight per plant, the starch content (12.50%) and reduce the sugar content (0.45%) for growing atlantic cultivar potato in medium altitude, however, it showed low height of the plants. The potato plants which were watered by 85% of field capacity showed the same height as ones watered by 100% while in other parameters low percentage of watering inhibited potato growth and its yield. Conclusion: Applying 100 ppm of paclobutrazol could increase the tubers weight per plant, starch content (12.50%) and reduced its sugar content (0.45%) other than that low percentage of watering inhibited potato yield for growing atlantic cultivar potato in medium altitude.

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