Jurnal Ilmu-Ilmu Pertanian Indonesia
Jurnal Ilmu-Ilmu Pertanian Indonesia (JIPI) is a scientific journal that publishes research results related to resource issues and agricultural productivity widely, including Agroecotechnology, Plant Breeding, Soil Science, Plant Protection, and Agricultural Ecology.
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<![CDATA[PERBANDINGAN METODE DENYUT JANTUNG DENGAN FAKTORIAL UNTUK MENGUKUR ENERGY EXPENDITURE PADA DOMBA KERJA LAKTASI ]]>
<![CDATA[Dwatmadji Dwatmadji]]>
<![CDATA[ Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 9, No 2 (2007) ]]>
Publisher : <![CDATA[Program Studi Ilmu Tanah Fakultas Pertanian UNIB ]]>
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DOI: 10.31186/jipi.9.2.148-155
<![CDATA[The use of conventional gaseous exchange methods for measuring animal energy expenditure is technically difficult and not generally feasible for animals working under field conditions. This experiment was held to study comparison of heart rate and factorial method measurements for predicting energy expenditure in working lactating Merino ewes. The ewes used were two years old, having similar liveweight and body condition, and given ad libitum mixed feed of sorghum and lucerne hay containing 13% of crude protein. The “Working” eweswas placed on modified horse treadmill with speed of 0.9 m second-1, 3 hours, load of 10% liveweight, and 0o incline; whereas the “Control” ewes were standing adjacent to opposite group. Energy expenditure was done using Heart-rate method and Factorial method. Heart rate was through measuring air bubble pulse created within the stream of heparinised saline in the jugular catheter. It was observed that mean energy expenditure estimated by using the Heart-Rate method was higher than that derived by the Factorial method and energy expenditure of Working ewes was higher than that of their Control counterparts, during both Work and Recovery periods. ]]>
<![CDATA[UPAYA PEREMAJAAN DAN PENYERAPAN LOGAM MINYAK GORENG BEKAS INDUSTRI MAKANAN TRADISIONAL DENGAN MEMANFAATKAN BIOADSORBEN TANDAN KOSONG KELAPA SAWIT (TKKS) ]]>
<![CDATA[Susi Desminarti]]>;
<![CDATA[Edi Joniarta]]>
<![CDATA[ Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 9, No 2 (2007) ]]>
Publisher : <![CDATA[Program Studi Ilmu Tanah Fakultas Pertanian UNIB ]]>
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DOI: 10.31186/jipi.9.2.85-93
<![CDATA[The research has been carried out in the Processing and Chemistry Laboratory of Politeknik Pertanian Negeri Payakumbuh and Post Harvest Laboratory in Bogor since July until November 2006. The research objectives was to prolong the using time of used cooking oil on food industries through applying the empty fruit bunch of palm bioadsorbent. The optimum condition of TKKS applied were 125 mm size and 5% bioadsorben from the weight of oil (Desminarti dan Rahzarni, 2004). The prolonging of cooking oil application can be done throughrefining used cooking oil so that the part of bad cooking oil can be lremoved. Statistical design used in this research was Completely Randomized Design with four treatments dan three replications. If the result was significant it will be followed by DMRT test on 5% significant level. Based on the experiment could be concluded that that four times titration could produced the oil based on SNI criterya in the relation to the water content (0.23%), peroxide value (0.82%) and free fatty acid value (0.23%) and it could also decrease Fe content from 76ppm to 22 ppm, Cu from 1.2 ppm to 0.40 ppm and Non Urea Adduct Forming (NAF) from 126 ppm to 102 ppm. The bioadsorbent sorption content on water varied from 78% to 80%; peroxide value from 14.71 to 59.80%, free fattyacid from 55.61 to 89.25%, Fe from 68.42 to 71.05%, Cu from 5% to 60% and NAF from 17.46 to 19.05%.]]>
<![CDATA[PENGARUH UKURAN BIJI TERHADAP KEMAMPUAN TANAMAN TUMBUH KEMBALI SETELAH RUSAK AKIBAT HERBIVORI ]]>
<![CDATA[Erniwati Erniwati]]>
<![CDATA[ Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 9, No 2 (2007) ]]>
Publisher : <![CDATA[Program Studi Ilmu Tanah Fakultas Pertanian UNIB ]]>
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DOI: 10.31186/jipi.9.2.156-164
<![CDATA[The objective of the study is to investigate the effect of seed size in the resprouting ability of seedling after being damaged and whether it correlates with the reserve effect. We grew the seedlings of two species of oak, namely Quercus robur and Quercus petraea from different seed size, in a greenhouse. The seedlings were harvested at different stages; after emergence, at the first shoot fully developed, and after the seedling had re- grown after the initial shoot was clipped. The result showed that: firstly, at the time of full seedling development, large seeds translocated less percentage of reserve from the seed to seedling. After clipping, the seedlings from large seeds translocated additional resources to the seedling. Secondly, although the larger seed has the larger biomass to re-sprout, the total mass invested in re-sprouting proportional with seedling size. We concluded that the seedlings of larger seeds re-sprout better than those of the smaller seeds. However, we did not find the improved performances correlating with the Reserve Effect Theory ]]>
<![CDATA[KESESUAIAN LAHAN DAN EVALUASI RUMUS BRAAK UNTUK PENGEMBANGAN TANAMAN KENTANG DI KAKI BUKIT KABA BENGKULU ]]>
<![CDATA[Priyono Prawito]]>;
<![CDATA[Eka Susiani]]>
<![CDATA[ Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 9, No 2 (2007) ]]>
Publisher : <![CDATA[Program Studi Ilmu Tanah Fakultas Pertanian UNIB ]]>
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DOI: 10.31186/jipi.9.2.94-102
<![CDATA[In order to get optimal growth and production, potato (Solanum tuberosum) should be cultivated on suitable land. Principally, land suitability evaluation is fitting land quality with plant growth requirement. The purposesof this study were: (1) to evaluate land suitability for potato cultivation in Bukit Kaba Foot Slope Bengkulu (BKFSB), and (2) to determine the air temperature gradient for Braak equation in calculating air temperature. Landsuitability evaluation has been conducted by overlying the land characteristic map with the potato growth requirement, to produce land suitability classes with various restriction factors. Temperature gradient was calculated by plotting elevation and air temperature data from 3 weather stations into the Braak equation. Land suitability evaluation with area study of 48.410 ha showed that actual area S (marginally suitable with restriction factor of air temperature 20-23 oC) is 5,150.00 ha (10.63%); S 3ts 3t (marginally suitable with restriction factor of air temperature 20-23 oC and slope of 8-15%) is 1.727,50 ha (3.56%); N (not suitable at present with restriction factor of slope 15-25%) is 2,250.00 ha (4.67%); and N2 1s (permanently not suitable with restriction factor of air temperature >23 oC, slope >25%, and protected forest) is 39.282,50 ha (81.14%). The potential area S is 9,127.50 ha (18.86%) and N2 3t is 39,282.50 ha (81.14%). To extend potato cultivation area in BKFB, new potato cultivars suitable for this area should be selected, and enhancing cultivation system with terrasering especially in slopping land as well ascontour planting should be done. The air temperature gradient in BKFSB area was 0.29 C each 100 m-elevation increase from sea level (0.29 oC hm-1).]]>
<![CDATA[PENENTUAN KOEFISIEN TANAMAN MENGGUNAKAN DATA PENGAMATAN IKLIM DAN INDEX VEGETASI DARI SETELIT NOAA/ AVHRR ]]>
<![CDATA[Eleonora Runtunuwu]]>
<![CDATA[ Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 9, No 2 (2007) ]]>
Publisher : <![CDATA[Program Studi Ilmu Tanah Fakultas Pertanian UNIB ]]>
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DOI: 10.31186/jipi.9.2.165-171
<![CDATA[One of the most important parameter of climatic water balance computation is crop coefficient (Kc). Unfortunately, the Kc is one of the most difficult parameter to measure in the field. This paper attempts to determine the crop coefficient by using climate observation data and the NDVI (Normalized Difference Vegetation Index) derived from NOAA (National Oceanic and Atmospheric Administration). Calculation using Morton’s Complementary Relationship Areal Evapotranspiration (CRAE) method that used elevation (m), annual precipitation (mm), monthly air temperature ( C), sunshine duration (%), as minimum requirement data, has been applied for more than 900 climatic stations over the Asian region that well documented by FAO-CLIM agroclimatic database to obtain the Kc value. The result was then related to NDVI derived from spectral reflectance of NOAA/AVHRR data. The relation results of NDVI and crop coefficient gave significant linear equation as Kc = 0.08 + 1.83 NDVI, with average correlation coefficient 0.72. It was high over humid area such as in Java island of Indonesia; on the other hand, it was low in semi arid area, such as west part of India. Even the results above were fit only for a specified area; this study has demonstrated a potential use of NOAA image for supplying the crop coefficient value that would be particularly necessary to determine actual evapotranspiration. ]]>
<![CDATA[PENGGUNAAN ASAM HUMIK DALAM KULTUR TRAPPING CENDAWAN MIKORIZA ARBUSKULA DARI EKOSISTEM DENGAN SALINITAS TINGGI ]]>
<![CDATA[Delvian Delvian]]>
<![CDATA[ Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 9, No 2 (2007) ]]>
Publisher : <![CDATA[Program Studi Ilmu Tanah Fakultas Pertanian UNIB ]]>
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DOI: 10.31186/jipi.9.2.124-129
<![CDATA[It has been reported that humic acid can increase plant growth and benefecial soil microbe population. A glasshouse experiment was conducted to study the effect of humic acid on growth of host plant and sporulation of arbuscular mycorrhizal fungi under salt stress in trap pot culture. Trap cultures were maintenance at various salinity levels as according to field salinity. Half of the pots received 2.5% humic acid and control treatment received no humic acid. Result of research indicate that humic acid can increase growth of host plant and mycorrhizae sporulation at all salinity levels. Acaulospora is highest its spore production followed by of Glomus and Gigaspora .]]>
<![CDATA[TINDAK GEN KETAHANAN TERHADAP PENYAKIT KARAT (Pucinnia arachidis, Speg.) PADA KACANG TANAH ]]>
<![CDATA[Juli Santoso]]>
<![CDATA[ Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 9, No 2 (2007) ]]>
Publisher : <![CDATA[Program Studi Ilmu Tanah Fakultas Pertanian UNIB ]]>
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DOI: 10.31186/jipi.9.2.172-177
<![CDATA[The rust disease resistance of groundnut has inherited pattern 9 : 7, indicating that was controlled by double resessive genes. From this fact needs an explanation of gene action, so it can be used as information in the breeding system and selection. The purpose of this research is to know the gene action control, if resistant the rust disease in groundnut. The design used in this experiment was randomized block design with three replications. There were 29 genotypes as treatments (5 genotypes parents, 6 genotypes F1, 6 genotypes F2, 6 genotypes BC1.1 and 6 genotypes BC1.2). The result of the experiment showed that there was a gene non-allelic interaction, mean effect (m) and a dominant gene effect (h) in progeny of Muneng x ICGV 87358 (Six Parameters Mode). However, the gene non-ellelic interaction did not occur in other progenies. Meanwhile progenies of Gajah x ICGV 92088, Gajah x ICGV 87358, Gajah x ICGV 91227 had a mean effect (m) and a aditive gene effect (d), and Muneng x ICGV 92088, Muneng x ICGV 91227 had only a mean effect (m).]]>
<![CDATA[PADI ORGANIK VERSUS NON ORGANIK: STUDI FISIOLOGI BENIH PADI (Oryza sativa L.) KULTIVAR LOKAL ROJOLELE ]]>
<![CDATA[Dody Priadi]]>;
<![CDATA[Tatang Kuswara]]>;
<![CDATA[Usep Soetisna]]>
<![CDATA[ Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 9, No 2 (2007) ]]>
Publisher : <![CDATA[Program Studi Ilmu Tanah Fakultas Pertanian UNIB ]]>
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DOI: 10.31186/jipi.9.2.130-138
<![CDATA[Study of the effect of organic and non-organic farming practice of rice (Oryza sativa L.) cv. Rojolele on seed physiology was carried out in Cipanas, West Java (on-farm) and in the laboratory of BSJ3 and greenhouse of RC for Biotechnology (off-farm). Parameters were recorded particularly on seed germination percentage, water content, dormancy behavior and morphology. On-farm study results showed that germination percentage of organic seeds was higher (88.3% at water content of 13.4%) than those non-organic seeds (20.0% at water content of 10.2%). Results of off-farm study showed that the plant height of those organic seeds was higher than those non-organic seeds. On-farm practice the harvest after 150 days showed that the non-organic seeds produced more yellow grains (44.8%) than those of organic seeds (39.6%). A total grain per plant produced by the non-organic seeds was higher than those organic seeds, however, total percentage of the filled out organic seeds was higher (57.8%) than those non-organic seeds (40.1%). Organic seeds seem to be more dormant than those non-organic seeds after storage for 12 months. Grain weight of both non-organic and organic was 17-19 g per 1000 seeds. Germination of off-farm non-organic seeds was 98.0%, whereas those organic seeds were 95.0% at water content of 10.8% respectively. In view of seed physiology, organic rice quality better than those non- organic because they contain more filled out seeds, even though the organic rice harvesting time longer than those non-organic. Although off-farm study represented seed physiology of either organic or non-organic seeds, on-farm study needs to be further done on all aspects of seed physiology.]]>
<![CDATA[VARIASI GENETIK, HERITABILITAS, TINDAK GEN DAN KEMAJUAN GENETIK KEDELAI (Glycine max Merrill) PADA ULTISOL ]]>
<![CDATA[Suprapto Suprapto]]>;
<![CDATA[Narimah Md Kairudin]]>
<![CDATA[ Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 9, No 2 (2007) ]]>
Publisher : <![CDATA[Program Studi Ilmu Tanah Fakultas Pertanian UNIB ]]>
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DOI: 10.31186/jipi.9.2.183-190
<![CDATA[Information on genetic variation, heritability, gene action and genetic advance were important in the development of soybean varieties adapted on Ultisol. The objective of this experiment was to estimate genetic variation, hertability, gene action and genetic advance from the populaton used in breeding program. Six genotypes, i.e Dempo, Cikuray, Davros, Orba, Sindoro and Wilis were intercrossed using diallel Griffings’ Method 2 Model 1 (1956). These six genotypes and 15 F1 hybrids were planted on Ultisol using randomized complete block design with three replications located in Medan Baru village, Bengkulu city in 1999. The results of this experiment revealed that all traits showed low to high genetic variation, high broadsense heritability, low to high narrowsense heritability and genetic advance. Date of flowering and root length were fully controlled by additive gene action, however harvest index was fully controlled by negative dominant gene action and epistasis. Other traits were controlled by positive and negative partially dominant, and positive overdominant genes. ]]>
<![CDATA[KETERKAITAN SEKTOR DAN SEKTOR UTAMA DALAM PEREKONOMIAN PROPINSI BENGKULU: ANALISA INPUT- OUTPUT ]]>
<![CDATA[Ketut Sukiyono]]>;
<![CDATA[M. Mustopa Romdhon]]>;
<![CDATA[Musriyadi Nabiu]]>
<![CDATA[ Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 9, No 2 (2007) ]]>
Publisher : <![CDATA[Program Studi Ilmu Tanah Fakultas Pertanian UNIB ]]>
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DOI: 10.31186/jipi.9.2.77-84
<![CDATA[The objective of research was to evaluate backward (BL) and forward linkages (FL) and to determine key sectors which have large contribution to Bengkulu economy. The linkages and key sector analyses were applied to the Bengkulu Input-Output Tables 2000. The results showed that the structure of the Bengkulu economy still remain dominated by agricultural sectors. Three agricultural sectors, i.e, palm oil, other agriculture, husbandary and their products, were the key sectors in Bengkulu economy indicated by strongest BL and FL indexes and they would be fundamental sectors for economic development in Bengkulu. ]]>
