The Mudskipper (P. barbarus) lives in intertidal mud flats and it becomes an indicator of water quality. The transformation of construction and water pollution in this area is important to investigate due to interaction of fishery industry, home residence, and market area surrounding areas. The aim of this research was to analyze the characteristic of Von Bertalanffy growth, allometric, condition index, and mortality of the P. barbarus in KKMB, Tarakan city. The research was designed by using descriptive quantitative method. The sampling process used purposive sampling. The sampling was conducted for 12 times plot.transect-1 in the extension area of KKMB, Tarakan city with a total area is 12 Ha, plot.transect-1area is 10x10 m2, and distance between each transect is 10 m2. Sampling was carried out in survey area and laboratory to identify the gender and calculate total length and weight. The result showed the growth of male mudskipper (L∞ = 26.545 cm) and female (L∞ = 17.594 cm). Their size and the total population was decreased. The characteristic of male mudskipper growth was positive allometric, then female was negative allometric. The natural mortality and the catch of male mudskipper were higher than female.
The purpose of this research is to know the influence of the cutting eksplan banana (Musa paradisiaca) c.v. Ketan and the granting of several concentrations of coconut water to the growth and development of in vitro eksplans. This research was carried out in the laboratory of Biotechnology , Faculty of agriculture, University of Sultan Ageng Tirtayasa, from August 1995 to November 2013. This study used a Randomized Complete Design (RAL) with two factors. The first factor was the cutting eksplan (b) consisting of two levels, namely eksplan without slashing eksplan (b1) and (b2) halved. The second factor was the coconut water (e), which consists of six levels, namely 0%/l (e1), 3%/l (e2), 10%/l (e3), 3%/l (e4), 20%/l (e5) and 25%/l (e6). Each treatment was repeated as many as 3 times so that there are 36 units attempted.The observation was done every day to grow the buds and time each week to the high number of variables buds, shoots as well as at the end of the observation to the independent living eksplan percentage, the percentage of contaminated eksplan, the percentage of dead eksplan and eksplan form the percentage of roots. Cutting eksplan gave no real influence in banana. Giving coconut water gives a real influence over time grow shoots, buds and high number of shoots banana. The best coconut water coconut water at concentrations of 20%/l MS media.
Rice is the main staple food for the people of Indonesia. It consists of some variation as its diversity. Each rice variety has a different physical shape and size in the grain. This study aims to determine the physical properties of several local Indonesian rice varieties. Research on the physical properties of grain was carried out on nine Indonesian local rice varieties from Banten, West Sumatra, and East Java provinces. Physical properties parameters observed in grain include length, width, shape, 1000 grain weight, bulk density, and chalkiness percentage of rice. The results showed that the grain shape of Tunggul Hideung and Genjah Nganjuk was slender and the other varieties were oval. While the type of Kewal Bulu Hideung includes round rice, the Kewal Bulu Hideung is slim in shape, and other varieties are oval. The highest 1000 grain weight in grain and rice was possessed by Kewal Gudril (28.23 g and 22.44 g), and the lowest was in Kuriak Kusuik (20.62 g and 14.09 g). The highest density of unhulled bulk density is Kuriak Kusuik (0.62 g..mL-1), and the lowest is Kewal Bulu Hideung (0.3 g.mL-1), while the highest rice bulk density is Susu Putih (0.89 g.mL-1) and the lowest one is the Genjah Nganjuk (0.79 g.mL-1). Based on the percentage of calcareous rice, Kewal Benur and Genjah Nganjuk including premium quality rice, Kewal Bulu Hideung, Tunggul Hideung and Kuriak Kusuik rice including medium quality class 1 rice, and other varieties do not meet the quality requirements set by SNI (> 5%).
Rice is an important food commodity in the world, even the majority of Indonesia's population consumes rice as a staple food. The chemical composition of rice consumed is very complex. Rice contains organic ingredients and minerals. At present, the mineral as a nutrient has not been widely recognized by the public as well as the adequacy of calories, protein or vitamins. Analysis of mineral content in several Indonesian rice varieties (such as Kewal Bulu Hideung,
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