Jurnal Ilmu Pertanian Indonesia
ISSN : 08534217     EISSN : 24433462
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Pengaruh Pupuk terhadap Pertanaman Kacang Hijau dan Residunya pada Tanaman Kacang Tunggak Lestari, Sri Ayu Dwi; Sutrisno, .; Kuntyastuti, Henny
Jurnal Ilmu Pertanian Indonesia Vol 23, No 1 (2018): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Original Source | Check in Google Scholar | Full PDF (245.843 KB) | DOI: 10.18343/jipi.23.1.21

Abstract

The objective of this research was to determine the effect of fertilization on four varieties mungbean in ultisol acid soils and its residual on cowpea. The experiment was conducted at the screen house of Indonesian Legumes and Tuber Crops Research Institute (ILETRI), Malang, East Java, from November 2014-April 2015. Two types of research conducted sequentially, the first planting was four mungbean varieties and the second planting was cowpea (continued from the first planting) without additional fertilizer. This experiment was laid out in split plot design, replicated three times. In the first planting, mungbean as the main plot, namely Kenari (V1), Murai (V2), Kutilang (V3), and Vima 1 (V4). Fertilizer rates as the sub plot, namely control or without fertilizer (P0), 300 kg Phonska/ha (P1), 1500 kg cow manure/ha (P2), 3000 kg cow manure/ha (P3), and 5000 kg cow manure/ha (P4). The cowpea variety used in the second planting was KT 4, with the experiment design following the first planting. The results from first planting showed that growth of mungbean varieties was relatively same at ultisol acid soils, and seed yield can increase by application 300 kg/ha Phonska or 3000 kg cow manure/ha. The growth of cowpea showed the best result on both fertilizers indicating the presence of fertilizer residue from first planting.
Pengaruh Suplementasi Infusa Daun Sirih (Piper betle L.) terhadap Kualitas Telur Puyuh Widjaya, Fensa Eka; Retnani, Yuli; Hermana, Widya
Jurnal Ilmu Pertanian Indonesia Vol 23, No 1 (2018): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Original Source | Check in Google Scholar | Full PDF (392.749 KB) | DOI: 10.18343/jipi.23.1.1

Abstract

Natural feed additive supplementation could lead to higher production performance of quails on many occasions. This study was aimed to evaluate the effect of Piper betle L. (betel leaf) infuse supplementation on egg characteristics of quails. Quails were raised in Slamet Quail Farm, Sukabumi, West Java, Indonesia for 3 months. Quails had been fed adlibtum using a commercial diet. Betel leaf supplementation in different concentration had been given to replace drinking water. The treatments were P0: 0% supplementation, P1: 10% supplementation was given since day old quail (DOQ), P2: 20% supplementation was given since DOQ, P3: 30% supplementation was given since DOQ, P4: 10% supplementation was given since laying phase, P5: 20% supplementation was given since laying phase, P6: 30% supplementation was given since laying phase. The results showed that betel leaf infuse supplementation reduced the weight of egg shell, increasing the weight of egg albumin and increased egg weight significantly (P<0.05). There was no significant effect (P>0.05) on another egg quality variables. It could be concluded that betel leaf infuses supplementation could affect the egg shell, albumin, and egg weight without affecting other egg quality traits. Overall, betel leaf supplementation could be applicated because it could increase egg albumin quality and egg weight. Even though additional handling is needed because betle leaf infuses supplementation could reduce egg shell quality and the egg could break easily.
Peningkatan Pati Resisten Tepung Sorgum Termodifikasi Melalui Fermentasi dan Siklus Pemanasan Bertekanan-Pendinginan Setiarto, Raden Haryo Bimo; Widhyastuti, Nunuk; Setiadi, Denny
Jurnal Ilmu Pertanian Indonesia Vol 23, No 1 (2018): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Original Source | Check in Google Scholar | Full PDF (448.958 KB) | DOI: 10.18343/jipi.23.1.10

Abstract

Sorghum can be utilized as raw material to produce resistant starch because of its high amylose content. Resistant starch is the starch that is resistant to gastric acid hydrolysis and it cannot be digested by pancreatic digestive enzymes, it cannot be absorbed in the human small intestine, but it can be fermented by intestinal microbial in the colon. This study aims to increase the levels of resistant starch in modified sorghum flour by lactic acid bacteria fermentation and autoclaving-cooling cycling. Parameters analyzed in this study were proximate analysis starch digestibility, amylose content, total starch, reducing sugar, RDS (rapidly digestible starch), SDS (slowly digestible starch), and resistant starch. The combination treatment of fermentation and 2 cycles of autoclaving-cooling (FAC-2S) is the best treatment because it was able to produce the highest resistant starch content (39.06% dw) and it increased resistant starch 8.1 fold when compared with control. Improvement the number of autoclaving-cooling cycles was applied will increase the resistant starch content and decrease the digestibility of modified sorghum flour. High amylose content in modified sorghum flour is useful in the formation of resistant starch.
Identifikasi Kesesuaian Genotipe Kedelai untuk Tumpang Sari dengan Ubi Kayu Sundari, Titik; Mutmaidah, Siti
Jurnal Ilmu Pertanian Indonesia Vol 23, No 1 (2018): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Original Source | Check in Google Scholar | Full PDF (452.461 KB) | DOI: 10.18343/jipi.23.1.29

Abstract

Intercropping is a modification of crop arrangements that can provide significant improvements in yields, with minimal labor investment. Increased productivity in soybean intercropping with cassava can be achieved through the use of suitable soybean genotypes for intercropping, as each genotype shows different responses to intercropping. The research aimed to identify the suitability of soybean genotypes for intercropping with cassava based on yield and land productivity assessed by the land equivalent ratio (LER). The research in 2016 was conducted at Kendalpayak Station Research, Malang, using a split plot design, repeated three times. The main plot is fifty-five soybean genotypes (50 promising lines and five control varieties, namely: Argopuro, Panderman, Dena 1, Dena 2, and Grobogan), and the sub plot is cropping systems (monoculture and intercropping). The results showed that intercropping of soybean with cassava caused soybean plants to experience shade stress, with shade rate of 62-90, 43-77, and 0-40% respectively for first, second and third-row positions. There are six soybean genotypes suitable for intercropping with cassava, Grob/Argom313-2, Grob/Pander395-3, Grob/Pander405-3, Grob/Pander428-1, Grob/Pander429-2, and Grob/IAC439-2, with an LER value of ≥1.8 which is a 10% selection limit to LER. Four combinations of them (Grob/Pander395-3, Grob/Pander405-3, Grob/Pander428-1, and Grob IAC439-2) provide an increase in cassava yields between 7.7-19.7% and reduction of soybean yields between 21.4-38.5%. While the two combinations other (Grob/Argom313-2 and Grob/Pander429-2) provide a reduction of cassava yields by 1.4 and 8.5% and reduction of soybean yield by 23.5 and 7.1%.
Hubungan antara Neraca Air Lahan dan Produksi Karet Klon PB260 Sahuri, .
Jurnal Ilmu Pertanian Indonesia Vol 23, No 1 (2018): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Original Source | Check in Google Scholar | Full PDF (411.525 KB) | DOI: 10.18343/jipi.23.1.38

Abstract

In general, rubber production was influenced by fluctuation of monthly rainfall rate. This research was aimed to determine the effect of rainfall, evapotranspiration, and soil water content on the production of PB260 rubber clone. This research was conducted at Sembawa Research Centre Experimental Field, South Sumatera from the year 2013-2016. The observed rubber tree was mature PB260 clone planted on clay loam soil. Rubber productions on the dry and rainy season on 2013-2016 were compared to determine the effect of rainfall on rubber production. The results showed that soil water content has the closest relationship to rubber production compared to rainfall and evapotranspiration parameter. Latex yield was decreasing as the decrease of soil water content at dry season. Limited water during the dry season became a constraint of optimum rubber yield. When soil water content drops below 100 mm, the maximum attained latex yield was 18 g/t/t.
Respons Agronomi Tiga Varietas Ubi Kayu pada Berbagai Tingkat Kadar Air Tanah Suwarto, .; Sulistyono, Eko; Prastowo, Giansar
Jurnal Ilmu Pertanian Indonesia Vol 23, No 1 (2018): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Original Source | Check in Google Scholar | Full PDF (257.188 KB) | DOI: 10.18343/jipi.23.1.44

Abstract

Cassava has been cultivated in almost the all region of Indonesia as a raw material of food, feed, and industries.  The productivity of cassava was varied among the region due to the variation of varieties used and growth environment, especially rainfall or water availability. Water deficit or drought stress will decrease the growth and yield of cassava.  Selecting tolerant variety to drought will be important to get high productivity. An experimental pot in the greenhouse has been conducted to know the growth and yield response to drought. Three varieties of cassava i.e Adira-1, Gajah, and Mangu were planted in the pot at three level of soil moisture content (SMC) 40-60, 60-80, and 80-100% of field capacity (FC). The cassava growth traits were influenced by SMC starting at 6 weeks after planting (WAP) for a number of leaves, at 8 WAP for stem girth, at 10 WAP for plant height, at 14 WAP for lobus width, and 15 WAP  for lobus length.  Root, stem, and leaves dry weight in the SMC of 40-60% FC were 64.4; 43.98, and 31.19% of the dry weight in 80-00% FC. Roots yield in the soil moisture content of 40-60% FC decreased by 76.2% and in the SMC of 40-60%, FC decreased by 38.4% compared to in the SMC of 80-100% FC. The water use efficiency and roots yield of Gajah variety were highest.
Evaluasi Ketahanan Galur International Rice Bacterial Blight terhadap Hawar Daun Bakteri dan Identifikasi Patotipe Xanthomonas oryzae pv. oryzae Provinsi Jawa Tengah Berdasarkan Galur IRBB Yuliani, Dini; Rohaeni, Wage Ratna; Sudir, .
Jurnal Ilmu Pertanian Indonesia Vol 23, No 1 (2018): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Original Source | Check in Google Scholar | Full PDF (273.053 KB) | DOI: 10.18343/jipi.23.1.52

Abstract

Bacterial leaf blight (BLB) caused by Xanthomonas oryzae pv. oryzae (Xoo) is the major disease in rice plants causing considerable economic losses. The objective of the study was to evaluate the resistant International Rice Bacterial Blight (IRBB) lines against bacterial leaf blight and the identification of Xoo pathotype from Central Java Province as the basis recommendation of the resistant varieties assembly with the background of resistant genes to overcome BLB disease. The evaluation of Xoo isolates from 22 districts in Central Java Province on IRBB lines was conducted in the rainy season 2016-2017 using split plot with three replications. The main plot was 15 IRBB lines, while the subplot was 110 Xoo isolates. Among 15 lines of IRBB, there were 10 lines have functioned as pathotype examiner of Xoo. The results obtained 6 lines were reacted resistant, namely IRBB5, IRBB7, IRBB8, IRBB57, IRBB64, and IRBB66. The IRBB66 line can be used as a resistant elder for the assembly of BLB resistant varieties because it has a combination of pyramiding resistant genes that were effective against BLB in some areas of Central Java Province. Pathotype IX was only found and dominant in Pemalang. Pathotype X was obtained in six districts of Tegal, Brebes, Banjarnegara, Purbalingga, Purworejo, and Grobogan. Pathotype XII was the most dominant prototype in 15 districts. Assembling of resistant varieties with resistant gene backgrounds based on the existence of a specific Xoo pathotype in the field can reduce the severity of BLB disease.
Penghambatan Respons Etilen pada Mawar Potong Melalui Modifikasi Larutan Perendam, 1-MCP, dan Sitokinin Mubarok, Syariful; Nursuhud, .; Suminar, Erni; Viola, Venny Revia
Jurnal Ilmu Pertanian Indonesia Vol 23, No 1 (2018): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Original Source | Check in Google Scholar | Full PDF (400.816 KB) | DOI: 10.18343/jipi.23.1.60

Abstract

Roses (Rosa hybrida Hort.) are the popular flowering plants in Indonesia, however, some problems on postharvest cut roses are faced, such as short of flower longevities. The freshness or longevity of cut flowers can be maintained for a longer time by using vase solution, inhibition of ethylene responses ie with the use of 1-Methylcyclopropene (1-MCP) and cytokinin. The objective of this study is to determine the effect of 1-MCP and cytokinin combined with in a vase solution on the flower longevity dan quality of cut roses. The experiment was conducted using a Completely Randomized Design consisting of nine treatments, cinsisting of: control; combination of sucrose + NaOCl + cytokines (1% + 0.01% + 20 ppm; 2% + 0.01% + 20 ppm; 1% + 0.05% + 20 ppm; and 2% + 0.05% + 20 ppm) and combination of sucrose + NaOCl + cytokinin (1% + 0.01% + 1 ppm; 2% + 0.01% + 1 ppm; 1% + 0.05% + 1 ppm; and 2% + 0.05% + 1 ppm). The results showed that the composition of 1% sucrose + 0.05% NaCl + cytokinin solution 20 ppm gave the best results in maintaining the angle of petals, reducing the increase of flower diameters, retaining flower petal colors, and making flower longevities up to 11.56 days.
Potensi Cadangan Karbon Hutan Nabundong KPH Wilayah VI Sumatera Utara Siregar, Yustika Fadilah; Wasis, Basuki; Hilwan, Iwan
Jurnal Ilmu Pertanian Indonesia Vol 23, No 1 (2018): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Original Source | Check in Google Scholar | Full PDF (397.557 KB) | DOI: 10.18343/jipi.23.1.67

Abstract

Tropical forest plays a major role in global carbon (C) cycle, about 50% of the total carbon is stored in biomass and 50% is stored in the top 1 m of the soil. Research on the potential for carbon stock was conducted in Nabundong forest in Padang Lawas Utara District. It was managed by the FMU (Forest Management Unit) region VI North Sumatra. This research aims to identify forest structure, estimate above ground biomass using allometric equations, and determine the carbon stock potential of Nabundong forest. The results showed that stratum I (212.68 tonC/ha) had higher carbon stock than stratum II (151.78 tonC/ha).
Produksi dan Kualitas Beras Dua Varietas Padi Akibat Rebah dan Terendam Dulbari, .; Santosa, Edi; Sulistyono, Eko; Agusta, Herdhata; Guntoro, Dwi; Zaman, Sofyan; Koesmaryono, Yonny
Jurnal Ilmu Pertanian Indonesia Vol 23, No 1 (2018): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Original Source | Check in Google Scholar | Full PDF (364.186 KB) | DOI: 10.18343/jipi.23.1.74

Abstract

Rice lodging followed by flooding has negatively detriment on the production, however, scientific evident is still rare. As the incident tends to escalate as the impact of extreme weather, hence, research was conducted in order to evaluate rice production and its quality of two rice genotypes treated with lodging-flooding. The experiment was conducted at Leuwikopo Farm IPB Bogor in July-October 2016 using randomized complete block design using two factors, i.e., variety (Way Seputih and Way Apo Buru) and lodging (no lodged [bending 0-18°], lodged [lodged 38-56°], and lodged with flooded [lodged 76-90°]). Rice hill aged 85 days after transplanting was lodged for 15 days. Results showed that lodged with flooded treatment did not increase yield loss although the plant tended to have sterility 5.59-22.00% higher, grain weight 2.05-35.26% lower, and 0.88-10.66% lower value of rice to unhusked ratio. Grains from the lodged-flooded plant had a number of head rice 13.38-15.78% lower, broken rice 0-24.84% higher, and stimulated germination on 1.33-3.40% grains than lodged-without-flooded. It is important to use rice varieties with stable on milling quality to address the lodged-flooded incident.

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