MEDIA SETTINGS AND SPACING IN PLANTING POTATO CUTTINGS (Solanum tuberosum L.) TO PRODUCE G0 SEEDS

AM Efendi1*, D Fatchullah1* dan WW Dewi2*

1Balai Penelitian Tanaman Sayuran, Jl. Tangkuban Parahu No.517, Bandung Barat

2Fakultas Pertanian Universitas Sultan Ageng Tirtayasa, Jalan Raya Palka KM. 03, Serang

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ABSTRACT

Potato (Solanum tuberosum L.) is the fourth major food crop in the world, after wheat, maize and rice. In 2011 the need for potato seeds reached 103,582 tons, even though the availability was only 15,537 tons or only 15%. Therefore, potato seed production needs to be improved both in quality and quantity. This study aims to determine the effect of various planting media and variations in spacing on the growth of cuttings and tuber yield G0 for potato seed (Solanum tuberosum L.). The experiment was conducted at the Experimental Garden of the Indonesian Vegetables Research Institute (IVEGRI), from May 2015 to September 2015. The method used was a factorial randomized block design (RBD) consisting of two factors and three replications. The first factor is the planting medium (M) consisting of rice husks (M1), chicken manure (M2) and horse manure (M3). The second factor is the variation of the spacing (J) consisting of 5 cm x 5 cm (J1), 6 cm x 6 cm (J2) and 7 cm x 7 cm (J3). The results showed that separately, chicken manure gave the best results for plant height (54.07 cm), canopy width (24.80 cm), number of stolons (6.87 pieces), number of tubers per plant (5,76 pieces) and tuber weight per plant (23.37 g). Then the close spacing (5 cm x 5 cm) was able to increase the number of stolons (6.13 pieces) and the number of tubers (4.96 pieces). On the other hand, the spacing that is more sparse (7 cm x 7 cm) tends to produce larger G0 seeds because they can yield 18.05 g per plant.

Key words : Cuttings, Growing media, Spacing, Solanum tuberosum L.

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