PROSPECTS OF SAGO PALM AND CULTIVATION DEVELOPMENT TO SUPPORT FOOD SECURITY

Fendri Ahmad

Anggota MASSI (Masyarakat Sagu Indonesia), Kampus IPB Dramaga Bogor Jawa Barat

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ABSTRACT

Sago (Metroxylon spp.) is a potential crop to be developed. Sago plants have a very high starch content. One individual sago plant can produce 200-400 kg of dry starch, some even reach 800 kg. Sago starch can be used as the main food source, non-food industry, energy material, food industry and animal feed. To maintain sustainability, balance and increase sago productivity, sago cultivation activities are carried out. These activities include agronomic measures, suitability of plant growth and the influence of environmental factors. Sago is also an environmental protection plant, growing well on peatlands without excessive drainage.

Key words : Sago, Food, Starch, Cultivation, Productivity.

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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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SPECIES DIVERSITY, DISTRIBUTION, AND POTENCY OF Ziziphus spp. (RHAMNACEAE) IN INDONESIA

Risha Amilia Pratiwi1, Novriza Sativa2

1Kebun Raya Cibodas, Pusat Riset Konservasi Tumbuhan, Badan Riset dan Inovasi Nasional.

Jalan Kebun Raya Cibodas, Sindanglaya, Cipanas, Cianjur, Jawa Barat, 43253

2Jurusan Agroteknologi, Fakultas Pertanian, Universitas Garut. Jalan Raya Samarang,

Nomor 52A, Garut, Jawa Barat, 441511

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ABSTRACT

Plants play an important role in human being directly or indirectly. Ziziphus spp. (Rhamnaceae) has been cultivated in Indonesia and commonly used as a medicinal plant but another potency of Ziziphus spp. still not explored. Species diversity and distribution are basic data for development of Ziziphus spp. potency in Indonesia. However, previous research only reported the diversity and distribution of Ziziphus spp. in Java, while data for the national scale is not yet available. Thus, this study aims to inventory the Ziziphus spp. and their distribution in Indonesia as well as assessing the potency of these genera based on TREES categorization. Literature reseach were conducted on digital databases and repositories of national and international journals. There are 24 species of Ziziphus spp. in Indonesia. A total of 18 species are native from Indonesia and 6 species are introduced. Ziziphus spp. has potency as timber, plants for land restoration and heavy metal remediation, fertilizer, ornamental plants, animal shelter, veneration, learning resources, nutritious fruit, firewood, charcoal, tea, wine, traditional medicine, personal care, food for silkworm, natural dyes, honey, craft and accessories materials, fodder, cigarette biofilters, fiber, botanical pesticides, and latex. Exploration of Ziziphus spp. potency in Indonesia can encourage the social welfare.

Key words : diversity, distribution, potency, Ziziphus

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EFFECT OF STORAGE TREATMENT ON CHARACTERISTICS AND PHYSICAL PROPERTIES OF WATERCRESS (Nasturtium officinale)

Kaharuddin Darmawan1, Arfiani Nur Sayidah1, Maris Miftahun Nisak1, Ankardiansyah Pandu Pradana1*, Muh Adiwena2, Rizza Wijaya3

1Program Studi Proteksi Tanaman, Fakultas Pertanian, Universitas Jember

2Program Studi Agroteknologi, Fakultas Pertanian, Universitas Borneo Tarakan

3Jurusan Teknologi Pertanian, Program Studi Keteknikan Pertanian, Politeknik Negeri Jember

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Watercress (Nasturtium officinale) is a vegetable that contains antioxidant components, so it has many health benefits. Post-harvest handling of watercress is needed to maintain its freshness and quality. Storage of watercress in cold temperatures can maintain the shelf life and freshness of watercress. This study was conducted to observe the effect of different media and storage treatments at low temperatures on the quality of watercress harvested products during five-day shelf life. The experimental design used in this study was a Completely Randomized Design (CRD) with 5 treatments. The results of the research conducted from the treatment of watercress storage for 5 days, namely storage using tissue and husks showed better results than the control treatment. Treatment of tissue and husks can maintain moisture and reduce evaporation of water, so it has better consumption feasibility than the control treatment, vinegar water treatment, and baking soda solution. Based on the data, consumer satisfaction lies in the texture, color, and freshness of the watercress.

Keywords: freshness, quality, storage, post-harvest, watercress

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