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INDONESIA
Jurnal Ilmu-Ilmu Pertanian Indonesia
Published by Universitas Bengkulu
ISSN : 14110067     EISSN : 26849593     DOI : https://doi.org/10.31186/jipi
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
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.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 163 Documents
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SERANGAN HAMA PENGGEREK POLONG PADA ENAM VARIETAS KEDELAI DAN PENGARUHNYA TERHADAP HASIL Christiawan Poniman; Tri Sunardi; Hesti Pujiwati
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 22, No 1 (2020)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.22.1.38-44

Abstract

[POD BORER ATTACK ON SIX SOYBEAN VARIETIES AND THEIR EFFECTS ON YIELD]. This study aims to determine the level of pod borer attack on six soybean varieties and their effects on yields. This research was conducted from December 2017 to March 2018 in the Experimental Field of the Faculty of Agriculture, University of Bengkulu, Kandang Limun Village, Muara Bangkahulu District, Bengkulu City. The experimental design used was a Randomized Complete Block Design (RCBD) with the treatment of six soybean varieties (Demas, Argomulyo, Dega, Ringing, Echo, and Dena I) and was repeated 4 times so that there were 24 experimental units. The results showed that the percentage of pod attack on the Demas, Argomulyo, Ringing, Gema, and Dena I varieties was classified as resistant, while the Dega variety was relatively resistant. Whereas the percentage of seed attack in all soybean varieties tested was classified as resistant. Argomulyo varieties have higher resistance to pod borer attack than other varieties because they produce the highest number of trichomes, and the lowest number of larvae per plant. Argomulyo variety produces the highest number of seed weight per plant, and the highest seed weight per plot. The echo variety produces the highest number of total pods, while the Dega variety produces the highest weight of 100 seeds. 
EFEK KONSENTRASI DAN WAKTU APLIKASI PUPUK ORGANIK CAIR KULIT PISANG TERHADAP PERTUMBUHAN DAN HASIL TANAMAN KUMIS KUCING (Orthosiphon aristatus) Detri Saputra; Entang Inoriah Sukarjo; Masdar Masdar
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 22, No 1 (2020)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.22.1.31-37

Abstract

[EFFECT OF CONCENTRATION AND APPLICATION TIME OF ORGANIC FERTILIZER LIQUID BANANA PEELS ON GROWTH AND YIELD OF JAVA TEA (Orthosiphon aristatus)]. Java tea are medicinal plants that have many health benefits but java tea production is very low. Efforts are made to increase the growth and yield of java tea, namely the use of liquid organic fertilizer (LOF) banana peels. This study aims to obtain concentration, application time of LOF banana peels, and interactions between the two that produce high growth and yield of java tea. The study was conducted from November 2018 to February 2019 in the city of Bengkulu. The experiments were arranged based on a completely randomized design factorial pattern. The first factor is the LOF concentration of banana peels 25 mL/L, 50 mL/L, 75 mL/L, and 100 mL/L. The second factor is the time of LOF application which consists of 1 week application, 2 weeks application, and 3 weeks application. The results showed that independently giving concentration and application time and interaction did not significantly influence the variable thickness of leaves, total leaf area, shoot length, number of leaves, fresh plant weight, root length, and dry plant weight.
PENGARUH JARAK TANAM DAN FREKUENSI PENYIANGAN TERHADAP PERTUMBUHAN, HASIL KACANG TANAH (Arachis hypogaea L ) DAN POPULASI GULMA Dina Yulianti Sisca Vera; Edhi Turmudi; Eko Suprijono
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 22, No 1 (2020)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.22.1.16-22

Abstract

[THE EFFECT OF PLANTING DISTANCE AND WEDDING FREQUENCY ON GROWTH, YIELD OF PEANUT (Arachis hypogaea L) AND WEED POPULATION]. This study was aimed to determine planting distance and frequency of weeding which gives the highest growth and yield of peanuts. Peanut plants were planted in the Experimental Field of the Faculty of Agriculture, Bengkulu University from October to December 2018. The study was arranged in a Complete Randomized Block Design (RCBD) with 2 factors and 3 replications. The first factor is the planting distance of 40 cm x 20 cm; 40 cm x 30 cm and 40 cm x 40 cm. The second factor is the frequency of weeding consisting of no weeding, 1x weeding (age 2 WAP), 2x weeding (2 and 4 WAP), and 3x weeding (2, 4, and 6 WAP). The results showed that the interaction between the spacing of 40 cm x 40 cm and 2 x weeding can increase plant height. The spacing of 40 cm x 40 cm can reduce the population and dry weight of broadleaf weeds. The planting distance of 40 cm x 30 cm can increase the fresh weight of pods, pod weight/plot, and the highest dry weight of pods/plants. The frequency of weeding 2x can reduce the population and dry weight of broadleaf weeds; whereas weeding frequency 3x can reduce weed populations of grass and sedges- weeds, and dry weight of broadleaf weeds. The 3x weeding frequency can also increase the total number of pods/plants, pod weight/plot, and pod weight/plant.
PEMBERIAN PUPUK KANDANG SEBAGAI PEMBENAH TANAH UNTUK PERTUMBUHAN DAN HASIL MELON (Cucumis melo L.) DI ULTISOL Eka Nurjanah; Sumardi Sumardi; Prasetyo Prasetyo
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 22, No 1 (2020)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.22.1.23-30

Abstract

[MANURE APPLICATION AS A SOIL AMENDMENT TO PROMOTE GROWTH AND YIELD OF MELON (Cucumis melo L.) IN ULTISOL]. The application of manure may overcome soil fertility problems in Ultisol triggered by low pH, high P retention, high content of Al and Fe, and low CEC. The objective of this study was to determine the optimum dose of different manures applied to promote the best growth and yield of melon. The study was conducted from February to May 2019 at the Experimental Plot of the Faculty of Agriculture, University of Bengkulu. Three different manures (chicken, cow, and goat manure) were applied at 5, 10, 15, and 20 tons/ha. These treatments were arranged in Completely Randomized Design with three replications. The results show that the enhancement in chlorophyll content (SPAD index) was highest in plots solely applied with 20 tons ha-1 manure, whereas application of manure even at 20 tons/ha had no effects on melon yield and its components. Manure types solely promoted plant height, maturity date, fruit diameter, and soluble solid content (Brix). Melon growth and yield were not affected by combined application of manure type and dose. These indicate that application of manure types irrespective of the amount applied failed to solve fertility problems in Ultisol where melon was grown.
UJI KONSENTRASI CENDAWAN Beauveria bassiana (Bals.) Vuill TERHADAP MORTALITAS KEPIK POLONG (Riptortus linearis) F. PADA TANAMAN KEDELAI Rika Aprilia Fajar Riningrum; Nadrawati Nadrawati; Edhie Turmudi
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 22, No 1 (2020)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.22.1.9-15

Abstract

[TESTING THE CONCENTRATION OF FUNGI Beauveria bassiana (Bals.) ON MORTALITY OF POD BORER (Riptortus linearis F.) ON SOYBEAN]. To control pod borer (Riptortus linearis F). on soybean using chemical insecticides can cause pollution to the environment, kill non-targeted insects and evolve pest resistance. The use of entomopathogenic fungus is an environmentally friendly alternative, one of which is Beauveria bassiana. (Bals.). The purpose of this study was to obtain an effective concentration of Beauveria bassiana fungi that can kill the pod borer at the 50% level.  The study was arranged in a Completely Randomized Design (CRD) consisting of 6 levels of fungi and 3 replications, where each experimental unit used 2 polybags.  Each treatment unit used 10 pod borers. The concentration of B. bassiana consisted of 105, 106, 107, 108 and 109 conidia / mL, and without fungi application as a control. The results indicated that the treatment of B. bassiana concentration on R. linearis significantly affected the percentage of mortality and the number of infected R. linearis, but no significant effect on the time of death, number of pods/plants and percentage of the number of damaged soybean pods. The mortality of R. linearis is classified as low, that is, less than 50%.
PERTUMBUHAN DAN HASIL DELAPAN GENOTIPE JAGUNG MANIS YANG DIBUDIDAYAKAN SECARA ORGANIK DI LAHAN RAWA LEBAK Rimma Ita Hutasoit; Nanik Setyowati; Mohammad Chozin
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 22, No 1 (2020)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.22.1.45-51

Abstract

[GROWTH AND YIELD OF  EIGHT SWEET CORN GENOTIPE ORGANICALLY GROWN IN SWAMPLAND]. Sweet corn (Zea mays saccharata Sturt) has a greater advantage than feed corn because of its early maturity and the price is more expensive. Recently, the need for sweet corn is higher than its production. To overcome these problems, it is necessary to expand the planting area by utilizing sub-optimal land such as swamps of low fertility. Agricultural intensification can be carried out through the use of organic materials to meet nutrient needs for growth and yield of sweet corn. Determination of varieties suitable for planting in sub-optimal land is also an effort to increase the productivity of sweet corn in swampland. This study aims to determine the potential of sweet corn genotype for organically cultivated in swampland. The material used in this study consisted of seven sweet corn genotypes and one comparative variety planted in experimental plots based on a Randomized Completely Block Design (RCBD) with three replications. The variables evaluated in this study were the growth, development, yield, and yield components of sweet corn. The results showed that the 8 sweet corn genotypes tested had significantly different in plant height, number of leaves, number of rows of seeds per cob, and yields per plot. Caps 17 B x Caps 22 and Caps 3 x Caps 5 are genotypes that have better growth than the comparative variety. On the other hand, the yield and yield components of the comparative variety was higher among the other genotypes tested.
STIMULASI PERTUMBUHAN BIBIT TEH (Camellia sinensis) DENGAN PEMBERIAN URIN SAPI DAN PENGGUNAAN BAHAN STEK YANG BERBEDA Noni Fatmala; Hermansyah Hermansyah; Marlin Marlin
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 22, No 1 (2020)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.22.1.52-57

Abstract

[STIMULATION EFFECTS OF BIOURINE CONCENTRATION AND THE STEM SEGMENT OF CUTTINGS ON  GROWTH OF TEA (Camellia sinensis) SEEDLINGS]. Tea seedlings can be prepared by the stem segment cutting and provide treatment to stimulate the growth of cuttings. This study aims to determine the optimal tea seedlings growth from different material of stem segment and biourine concentration. The experiment was conducted in February to June 2020 at PT. Sarana Mandiri Mukti Kelurahan Tangsi Baru, Kabawetan District, Kepahiang Regency, Bengkulu Province. This research uses factorial completely randomized design (CRD) with two factors. The first factor, biourine concentration consisting of 5 levels including 0%, 25%, 50%, 75%, 100%. The second factor, the stem segment of cuttings consisting of 3, 4, and 5 segments. The treatment was repeated 3 times, with 5 plants sample in each treatment. There was totally  225 plants. The results showed that biourine concentration of 100% has significantly different from the variable roots number and root length. The stem segment of the tea cuttings has no significantly difference  effect on all variables. The interaction between biourine concentration and stem segment of the tea cuttings has significantly different in variables of shoot length and seedlings fresh weight. The optimum growth of tea seedling was obtained in stem cutting of 3 segment and application of biourine concentration of 100%.
PENGARUH PEMBERIAN PUPUK HAYATI MIKORIZA DAN PUPUK KANDANG AYAM TERHADAP PERTUMBUHAN DAN HASIL TANAMAN KACANG PANJANG (Vigna sinensis L.) DI ULTISOL Eisal Vepin Nainggolan; Yudhi Harini Bertham; Sigit Sudjatmiko
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 22, No 1 (2020)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.22.1.58-63

Abstract

[EFFECT OF MYCORRHIZAL BIOFERTILIZER AND CHICKEN MANURE ON GROWTH AND YIELD OF COWPEA (Vigna sinensis L.) IN ULTISOL]. This study aims to 1) obtain the interaction of mycorrhizal biofertilizers and chicken manure on cowpea in ultisol and 2) determine the best dose of mycorrhizal biofertilizers for the growth and yield of cowpea plants, also find the best dose of chicken manure on the growth and yield of string beans. The study was conducted in April 2019 at the experimental garden, Integrated Zone of the Faculty of Agriculture, UNIB, Kelurahan Kandang Limun, Muara Bangkahulu District, Bengkulu City. This study used a factorial Randomized Completely Block Design (RCBD) with two factors and three replications. The first factor is the administration of a dose of mycorrhizal biofertilizer, i.e., 0 (without mycorrhizae), 2.5 g/plant, 5 g/plant, and 7.5 g/plant. The second factor is the provision of chicken manure doses of 5 tons/ha, 10 tons/ha, and 15 tons/ha. Each experimental unit consisted of 25 plants with some sample plots of 5 plants. There is an interaction between mycorrhizal fertilizer 5 g / plant with chicken manure 5 tons/ha, which gives the best results on variable weight pod pods equal to 1.55 kg/m2 and pod weight of 15.46 kg/ha. The application of mycorrhizal biological fertilizer at a dose of 5 g/plant has good vegetative growth compared to other mycorrhizal doses. It shows the highest results based on the average number of flowers/plants and the number of pods/plants. Doses of chicken manure up to a dose of 15 tons/ha do not significantly increase growth and yield of cowpea.
PENAMPILAN PERTUMBUHAN DAN HASIL LIMA HIBRIDA TOMAT PADA LAHAN ULTISOL DAN GAMBUT Elpiana Purba; Alnopri Alnopri; Bandi Hermawn; Helfi Eka Saputra
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 22, No 1 (2020)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.22.1.64-69

Abstract

[GROWTH APPEARANCE AND YIELD OF FIVE TOMATO HYBRIDS ON ULTISOL AND PEATLANDS].  Ultisol and peat are included in marginal land that can support the growth and development of plants. This study was aimed to compare the growth and yield of five tomato hybrids on ultisol and peatlands. The experiments were carried out in the field with the soil type of on ultisol and peats.  The experiment was arranged in a Randomized Completely Block Design with 3 replications. The hybrids evaluated were UNB-1 × UNB-2, UNB-3 × UNB-1, UNB-2 × UNB-1, and UNB-2 × UNB-3, and Sinta as a control hybrid.  The results showed that in ultisol lands, the diversities among genotypes were observed in some variables, including the age of flowering, a number of fruits per plant, fruit diameter, fruit weight per plant, and fruit sweetness level.  On the peatlands, a significant diversity was observed in plant height, age of flowering, age of harvest, fruit weight per plant, number of flowers per bunch. Based on this evaluation in the Ultisol soil, the yield of UNB2 × UNB1 was higher than control (Sinta genotype), whereas, in peat, the growth and yield components of UNB2 × UNB3 is the best and Sinta hybrid as a control genotypes showed the highest yield among other genotypes. 
EKSPLORASI DAN UJI VIRULENSI BAKTERI Bacillus sp. ENDOFIT JAGUNG TERHADAP PENYAKIT BUSUK PELEPAH JAGUNG Arum Saputri; Loekas Soesanto; Abu Umayah; Agus Sarjito
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 22, No 2 (2020)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.22.2.70-78

Abstract

[EXPLORATION AND VIRULENT TEST OF MAIZE ENDOPHYTE Bacillus sp. AGAINST MAIZE SHEATH BLIGHT]. Capability of endophytic bacterial, effectivity, and its effect on R. solani. and on maize seedlings growth were investigated from April 2018 to January 2019. Exploration of endophytes bacteria in maize was taken from Banyumas Regency (Sumbang, Kembaran, Baturraden) and Purbalingga Regency (Padamara, Bojongsari, Pratin). Taking plant samples using Purposive Random Sampling and Diagonal Sampling methods. Completely randomized design was used in in vitro test with 16 treatments repeated twice. Completely randomized block design was used in in planta experiment with 5 treatments repeated 5 times. The treatment consisted of control, fungiside (mankozeb), and 2 isolates of endophytes bacteria performing the best in vitro result. Variables observed included characteristics of endophytic bacteria and pathogenic fungi, inhibition diameter, incubation period, disease intensity, incidence of disease, AUDPC, plant height, leaf number, root length, plant fresh weight, canopy fresh weight, and root fresh weight. Resultshowed that the exploration obtained 15 endophytic Bacillus sp. isolates. The PD A.4 and BK A.1 isolates werw able to inhibit the growth of pathogenic fungi in-vitro by 56.93 and 51.5%, respectively. The soaking treatment using BK A1 was able to reduce disease intensity by 59.377%, and AUDPC value 34.19%. Endophytic bacteria influence plant height, plant fresh weight, canopy fresh weight, and fresh weight of roots respectively as 89.17 cm, 126.06 g, 106.67 g and 19.4 g.

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