Judul: Tanggap daya tumbuh dua klon stum okulasi dini karet terhadap media kemasan pada pengiriman jarak jauh
Abstrak: Alternative stump procurement for distant shipping could be provided with young budded stumps. Various obstacles causing mechanical injuries need to be eliminated by proper wrapping media. The aim of this research was to study response of young budded rubber stumps to various wrapping media, clones and delay planting time (representing long distance transportation). Research was conducted at IPB Research Station, Cikabayan, Darmaga, Bogor from May until August 2007. Three factor factorial experiment was arranged on Split Split Plot Design with 4 replications. First factor (as main plot): 2 and 7 day-delay planting. The second factor (as sub plot): young budded clones of PB 260 and PB 330. The third factor (as sub sub plot): was wrapping media: no wrapping, cocopeat and newspaper. Least Significance Difference Analysis was performed whenever there was a significant effect of the factor as shown by ANOVA. Observed parameters were percentage of budbreak and viability of stump; length, diameter and dry weight of stem; leaf number and leaf area; number of and length of lateral roots and total root dry weight. Delaying on time of planting from 2 to 7 days did not decrease the growth of seedling, although budbreak of 7 day delay of planting were earlier that the 2 day delay of planting. Slower budbreak on 2 day delay of planting was no longer shown a significant effect on shoot growth at the end of experiment. This research also shown that the seedling with later budbreak were able to reach the same level of growth with the seedling with earlier budbreak. This because of they were supported by a better roots for absorbing soil moisture and nutrient for shoot growth.
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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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