PENINGKATAN KUALITAS HASIL UBI TIGA VARIETAS KENTANG MELALUI APLIKASI PAKLOBUTRAZOL DI DUA DATARAN MEDIUM

Abstract

Abstract

Research aimed to know increase of quality of tuber yield due to packlobutrazol aplication in two medium altitude, was conducted in experimental station of Faculty of agriculture, Unpad, Jatinangor (760 asl) and Farmer land, Pasir Leungit (320 dpl), started from March until October 2011. Experiment was arranged in a randomized block design factorial pattern with two factors and replicated three times. First factor was cultivars namely 'GM08', 'Margahayu', and 'Atlantik', whereas second factors was four levels of packlobutrazol namely pure water, 30 mg, 60mg, and 90mg. Such experiments was conducted in two location with same design. Variables observed were starch content, dry matter content, specific gravity, and reducing sugar content.Results showed that there were interaction effect between cultivars and location on dry matter content, specific gravity, and reducing sugar content. Significant interaction effect between cultivars and packlobutazol was shown on specific gravity. Aplication of 60 mg packlobutrazol had given best quality of tuber yield of processing potato.

Keywords: medium altitude, potato, tuber quality, packlobutrazol, processing