Judul: Pengaruh Penambahan Cahaya Kontinu Terhadap Produktivitas Tanaman Karet Rakyat (Hevea Brasiliensis Muell Arg.) Di Tanjung Jabung Barat, Provinsi Jambi.
Abstrak: This research is to know the relations of continous light to rubber plants’ productivity, located in West Tanjung Jabung, Jambi. This is an uncontrolled research with research spots taken at 225 m, 275 m, 325 m, 375 m, 425 m, 475 m, 525 m, 600 m, 700 m, and 800 m distances from flare. There are four rubber plants taken on each spots and flare is the light source researched. The variables observed on this research are rubbers production, light (illuminations, irradiations, UV, and quantum) splitted to day observation to the sunlight and night observation to the flare light. Other observation done on this research are weeds’ vegetation analysis, soil and air temperature observation, and soil analysis. Results on this research is the increase of contionus flare has no impact to the rubber plants productivity, because the observe value on the night observations show that illumination value is about 0,001-0,004 watt/m2, but the value of UV, irradiations and quantum shows zero point. Productivity of rubber plant is affected by the age of the plant and klon used as a seed, no treatment, no weeds’ control, and soil structure.The most influential factors in the production rubber clones GT and AVROS is the nutrient content of the soil, soil texture, soil pH, the amount of weeds, and the growth of rubber trees. In clone LCB factors affecting production are soil nutrient content, soil texture, soil pH, the amount of weeds, and the growth of rubber trees.
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Judul: Respon pertumbuhan bibit karet (Hevea brasiliensis Muell. Arg.) terhadap pemberian inokulan cendawan mikoriza arbuskula dan pemupukan fosfor
Abstrak: The rubber plant is one of the commodities that have significance in the socio-economic aspects of Indonesian society. To increase the production and quality of the rubber must be done with good seeding techniques. This research objective to study the response of Arbuscular Mycorrhizal Fungi inoculants and dose of fertilizer P to the growth of rubber stump (Hevea brasiliensis Muell. Arg). The research was conducted at Cikabayan Experimental Farm from May to August 2014. The experiment designed as a randomized complete block design (RKLT) factorial with two factor and three replications. The first factor was three levels arbuscular mycorrhizal fungi inoculants dosage, i.e. without mycorrhizal inoculants, 10 g per plant, and 20 g per plant. Mycorrhizal inoculants was applied one month after rubber stump planted. The second factor were four level dosage of phosphorus of SP-36 fertilizer (0, 0.5, 1.0, 1.5 dosage recommended that is giving 3.88 g per plant at first month and 7.76 g per plant in the third month). The results showed that arbuscular mycorrhizal fungi inoculants was not significantly difference to length of buds, diameter of buds, number of petiole, number of roots, longest roots, dry weight and wet weight of roots, dry weight and wet weight of shoots. Phosphorus fertilization significantly affect to length of buds, and dry weight and wet weight of roots with linear response pattern. There was an interaction between the giving of arbuscular mycorrhizal fungi inoculants and dosage of phosphorus to length of buds, diameter of buds, and number of petiole. The best combination was 0.5 dosage recommended of SP-36 fertilizer and giving mycorrhizal inoculant 20 g per plant.
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Judul: Trichomonas Gallinae Penyebab Trichomonosis Pada Unggas
Abstrak: Trichomonas gallinae adalah protozoa yang bergerak aktof dengan keempat flagella yang mempunyai layar dan pada salah satu sisinya terdapat membran seperti sirip ikan yang berombak. Spesies dari genus Trichomonas ini mempunyai arti penting pada unggas, karena dapat menyebabkan infeksi pada alat pencernaan bagian atas.
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