scholarly journals AKTIVITAS EKSTRAK ETANOL KULIT BUAH JENGKOL (Pithecellobium jiringa (Jack) Prain.) SEBAGAI BIOHERBISIDA GULMA BAYAM DURI (Amaranthus spinosus L.) DAN RUMPUT PAITAN (Paspalum conjugatum Berg.)

2019 ◽  
Vol 8 (3) ◽  
Author(s):  
Siti Nur Hasanah ◽  
Elvi Rusmiyanto Pancaning Wardoyo ◽  
Mukarlina Mukarlina

Weed is a plant that grow in undesirable places, especially in the location of cultivated plants. Alelochemical use as bioherbicide is one of the ways in weed control and is safe for the environment. The study was conducted to test the potential of P. jiringa fruit peel extract as bioherbicide on the germination and growth ofA .spinosus and P.conjugatum weeds. The study used a completely randomized design (RAL) with the concentration of extract (P) used consisting of 6 treatments, namely P1 = 0 (control), P2 = 0.1; P3 = 0.2; P4 = 0.3; P5 = 0.4; and P6 = 0.5 g / ml. each treatment was repeated 5 times. The results of the study showed that the concentration extract of 0.5 g / ml was an inverse concentration to inhibit the weed seeds germination ofA.spinosus and P. conjugatum. Good concentration extract to inhibit growth A. spinosus and P. conjugatum is 0.3 g / ml which results in inhibition of plant height, root length, wet weight and dry weight. Based on research conducted on fruit peel extract P. jiringa has the potential as a bioherbicide.

2018 ◽  
Vol 7 (3) ◽  
Author(s):  
Sumi Riza linda Diah Wulandari Rousdy

Acacia (Acacia mangium Wild.) have alelokimia compound that can suppress the growth of the plants that it can be used as bioherbicide. This aimto study determined the concentration of the methanol extract of leaf of acacia capable of inhibit the germination and growth of weed, purple maman (Cleome rutidospermae DC.) and grass grinting(Cynodon dactylon L.). This study use a completely randomized design (CRD) with five replication and five treatment consist of control, concentrationmethanolextract0.2; 0.4; 0.6 and 0.8 g mlˉ1.Resultshowed that the methanol extract of leafacacia with a concentration of 0.4 g mlˉ1able to inhibit germinationpurple maman and grass grinting. Concentration of 0.2 g mlˉ1extract acacia can inhibit the growth of plant height, root length, and a decrease in wet weight and dry weight in weed purple maman andgrass grinting


2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Silaturahmi Silaturahmi ◽  
Zaidiyah Zaidiyah ◽  
Tengku Mia Rahmiati

The use of colorants in the dried noodle manufactures is an effort of product diversification. Besides of being used as a natural coloring agent, this peel extract is also used to improve nutritional value of the expected product. The purpose of this study was to determine the effect of red dragon fruit peel extract on the physical quality of dried noodle.  The study was conducted by using Completely Randomized Design (CRD) method with one factor, namely concentration of red dragon fruit peel extract (N1 = 10 ml, N2 = 15 ml, N3 = 20 ml, N4 = 25 ml, N5 = 30 ml).  The observations of its physical quality consisted of water absorption, solid loss during cooking, and organoleptic tests (aroma and color).  The best quality of dried noodle was obtained by using 30 ml red dragon fruit peel extract (N5) with physical properties, namely DSA levels of 351.92%, solid loss during cooking 4.78%, aroma 3.79 (like) and color 3.89 (like).


2018 ◽  
Vol 7 (1) ◽  
pp. 28
Author(s):  
Yetti Elidar

Research on the response of roots of palm sugar palm seeds (Arenga pinnata) in nurseries at doses and intervals of Nasa liquid organic fertilizer. Aims to determine the dosage, interval and combination of dosages and fertilization intervals with Nasa liquid organic fertilizer which can provide the best dry weight of the roots in the nursery. The research design used was a Completely Randomized Design (CRD) with 3x3 factorial experiments and each treatment was repeated 8 (eight) times, consisting of: the first factor was the treatment of POC Nasa dose in a concentration of 3 cc POC Nasa per liter of water (D) consists of 3 levels, namely: d1 = 300 ml POC Nasa, d2 = 400 ml POC Nasa, d3 = 500 ml POC Nasa, while the second factor is the treatment of POC Nasa Interval (I) consisting of 3 levels, namely: i1 = 2 once a week, i2 = once every 3 weeks, i3 = once every 4 weeks. The results of the POC Nasa dose study had a significant effect on leaf wet weight, leaf dry weight, root wet weight and root dry weight. The best dose at this level are: d2 (400 ml of Nasa liquid organic fertilizer), the interval of liquid organic fertilizer Nasa has a significant effect on leaf wet weight, leaf dry weight, root wet weight and root dry weight. The best dose at this level is: i1 (once every 2 weeks). The treatment combination has no significant effect on all parameters. 


Author(s):  
Dwi Astutik ◽  
Ratih Rahhutami ◽  
Aline Sisi Handini ◽  
Ahmad Sutopo

<em>A planting medium that rich in nutrients is needed for oil palm, especially in the nursery phase. This study aimed to determine the effect of various doses of EM4 and to get the best dose of EM4 on the growth of oil palm seedlings in the pre-nursery. The research method used was a non-factorial completely randomized design with 4 treatments, namely 0 ml EM4 (A1), 4 ml EM4 (A2), 8 ml EM4 (A3), and 12 ml EM4 (A4). Each treatment was repeated 6 times so that there were 24 experimental units. The data obtained were analyzed for variance at the 5% level, if the effect was real, it was followed by the least significant difference (LSD) test. Based on the results of the study, it could be concluded that application of various EM4 doses had a significant effect on plant height (4-12 MST), the number of leaves (4-8 MST), trunk girth (4-12 MST), and shoot wet weight but did not significantly affect the number of leaves (12 MST), the volume of roots, length of roots, root wet weight and shoot dry weight, dry weight root, the best dose was shown at a dose of 12 ml EM4.</em>


Rekayasa ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 164-171
Author(s):  
Suhartono Suhartono ◽  
Diana Nurus Sholehah ◽  
Rohmad Suci Murdianto

Tanaman sambiloto (Andrographis paniculata Nees.) merupakan salah satu tanaman obat unggulan Indonesia selain temulawak, mengkudu, pegagan, lidah buaya, lada, dan kunyit. Peningkatan produktivitas sambiloto dapat dilakukan dengan perbaikan teknik budidaya melalui sistem pemupukan.  Kajian aplikasi pupuk guano terhadap pertumbuhan, produksi dan kandungan andgrographolida pada tanaman sambiloto terbatas, sehingga perlu dilakukan untuk mengetahui pengaruh pupuk guano terhadap pertumbuhan dan kandungan andrographolida pada tanaman sambiloto. Penelitian ini dilaksanakan di kebun percobaan Program Studi Agroteknologi Fakultas Pertanian Universitas Trunojoyo Madura pada bulan Januari - April 2016. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) non faktorial dengan perlakuan 6 taraf dosis pupuk guano dengan 4 ulangan. Perlakuan dosis pupuk guano per hektar meliputi G0 (control/tanpa pupuk guano), G1 (5 ton), G2 (7.5 ton), G3 (10 ton), G4 (12.5 ton), dan G5 (15 ton). Pada setiap percobaan terdapat 6 tanaman dengan rincian 3 tanaman sebagai sampel. Hasil penelitian menunjukan bahwa pemupukan guano pada dosis 15 ton/ha (G5) memberikan hasil terbaik untuk parameter tinggi tanaman, jumlah daun, luas daun, berat basah total dan berat kering total tanaman. Kandungan andrographolida (%) tertinggi diperoleh pada dosis pupuk guano 7.5 ton/ha (G2), sedangkan produksi andrograpolida (mg) tertinggi ditunjukkan oleh perlakuan G4 (dosis pupuk guano 12.5 ton/ha).Response of Growth and Production of Srographic Andrographolida Plants (Andrographis paniculata Nees) Due to Differences in Guano Fertilizer Doses Bitter plant (Andrographis paniculata Nees.) including one featured Indonesian medicinal plants in addition to ginger, noni, gotu kola, aloe vera, pepper, and turmeric. Increased productivity is bitter to do with the improvement of farming techniques through a system of fertilization. Study of guano fertilizer application on the growth, production, and content andrographolide the bitter plant is limited, so it is necessary to know the effect of guano fertilizer on the growth and content of the plant andrographolide bitter. This research was conducted at the experiment station Agrotechnology, Faculty of Agriculture, University Trunojoyo Madura at January-April 2016 by using a completely randomized design (RAL) non-factorial with 4 replications consisting of G0 (control/without guano fertilizer), G1 ( fertilizer guano 5 tons/ha) G2 (7.5 tons/ha), G3 (10 tons/ha), G4 (12.5 tons/ha) and G5 (15 tons/ha) on each trial there are 6 plants with details of 3 plants in the sample. The results showed that the guano fertilizer at a dose of 15 tons/ha (G5) can be increased plant height, leaf number, leaf area, total wet weight, and total dry weight. The highest content of andrographolide obtained at doses of 7.5 tons/ha (G2) of guano fertilizer, while the highest yield of andrographolide obtained at doses 12.5 tons/ha of guano fertilizer (G4).


2020 ◽  
Vol 1 (1) ◽  
pp. 12
Author(s):  
Icha Rusita ◽  
Hadi Sasongko

Moler disease is the primary disease that disturbs the shallot’ cultivation. Hence, it is beneficial to have preventive measures to mitigate the risk and to improve growth. The research objective is to know the effectivity of Trichoderma harzianum suspension as a bio-fungicide and bio-stimulator. The study used seven treatments, i.e., immersion of shallot seeds on negative control (distilled water), positive control (synthetic fungicide+ZPT 1g/liter), T.harzianum suspension with different concentrations of 2 ppm, 4 ppm, 6 ppm, 8 ppm, and 10 ppm, assigned in a Completely Randomized Design (CRD). Treatment that results in a significant level will be continued to the Least Significance Different (LSD) 5% test. The observed variables are the intensity of moler disease and the growth of shallot seeds. Experiment results show the significant difference between treatments. The optimal treatment to reduce the percentage of moler disease intensity is the immersion of shallot seeds in 10 ppm-concentrated T.harzianum suspension, while to improve the shallot growth is in 8 ppm-concentrated T.harzianum suspension. The intensity of moler disease has a negative correlation to the plant’s height and leaf’s diameter but shows no correlation pattern to the number of leaves, wet weight, dry weight, and length of roots.


2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Thomas Wagin ◽  
Oktavianus Lumban Tobing ◽  
Nur Rochman

This study was aimed to determine the effect of dosage of  cow manure and, dolomite on the growth and production of long  beans. This research was conducted in experimental field of Agroteknologi Department of Djuanda University Bogor. The study was prepared according to Completely Randomized Design (RAL), factorial. The first factor was the dose of cow manure according to recommendation consisting of 4 levels: 0R, 0.5 R, 1R, and 1.5R . The second factor is the recommended dolomite consisting of 4 levels: 0R, 0.5 R, 1R, and 1.5 R.  The results showed that the average height of the plant at age 6 MST, the number of leaves 4 MST and 6 MST, the number of flowers and the amount of fruit 6 MST, wet fruit weight of 3rd fruit harvest, dry weight of stem aged 8 MST influenced by cow manure.  While plant 4 MST, number of leaves 4,6 and 8 MST, number of branches 4, 6 and 8 MST, 6.8 MST of flowers and number of fruit 6,8 MST, weight lenghtof fruit harvest to-1, wet fruit weight of whole harvest 1st, dry weight of 3rd harvest, wet weight of stem, dry weight of stem, wet weight of root influenced by dolomite.Keywords: Long beans, plant height, the amount of fruit, fruit weight


KOVALEN ◽  
2019 ◽  
Vol 5 (3) ◽  
pp. 280-289
Author(s):  
Amalia Noviyanty ◽  
Chitra Anggriani Salingkat ◽  
Syamsiar Syamsiar

This study aims to determine the effect of the ratio of solvents to extract yield, phenolics total and IC50 values ​​of red dragon fruit peel and also get the optimal solvent ratio to obtain extract yield, phenolics total and the highest or best IC50 values ​​of red dragon fruit peel extracts. The solvent ratio used there are 6 levels of the ratio: 2:1; 3:1; 4:1; 5:1; 6:1 and 7:1 (v/w). The data obtained were analyzed using a Completely Randomized Design that was applied to observations of extract yield, phenolics total and IC50 values, if the treatment had a very significant or significant effect followed by continued Tukey HSD test at 1% or 5% level. The results showed that the solvent ratio very significantly affected the extract yield, phenolics total and IC50 value of red dragon fruit peel extract.  The solvent ratio of 4:1 (v/w) produced extract yield, phenolics total and IC50 values the highest or best i.e  26.22%, 71.56 ppm, and 124.62 ppm. Keywords : IC50, the red dragon fruit skin, solvent ratio, phenolics total


2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Muhamad Iqbal ◽  
Riza Linda ◽  
Mukarlina Mukarlina

Peat soil in West Kalimantan has been contained low of nutrient level so it affects the growth of soybeans. One effort to increase the availability of nutrients in peat soils is by using mycorrhiza and chicken manure fertilizer. This research aims to determine the growth of soybeans by administering chicken manure and mycorrhiza on peat soils. The research was conducted from January to April 2019. The research design used was a Completely Randomized Design Factorial consisting of 2 factors with 4 replications. The first factor is mycorrhiza fungi: M1 (0 gr/polybag), M2 (5 gr/polybag), M3 (10 gr/polybag), M4 (15 gr/polybag) and the second factor is chicken manure fertilizer: P1 (0 tons/ha) , P2 (5 tons/ha), P3 (10 tons/ha), P4 (15 tons/ha). The results showed that the single chicken manure application significantly affected all observed parameters with 15 tons/ha chicken manure fertilizer. Mycorrhiza fungi just a significantly effect on fresh weight and dry weight. Also, the combination of mycorrhiza fungi and chicken manure fertilizer just a significantly affected wet weight and dry weight with combination 5 g mycorrhiza and 5 tons/ha of chicken manure fertilizer.


2021 ◽  
Vol 316 ◽  
pp. 03007
Author(s):  
Sutarman ◽  
A. Miftahurrohmat

This study aims to determine the growth response of the vegetative stadia of three soybean varieties which are widely used in East Java on acid soils that have been given biological fertilizers from various Trichoderma isolates. The experiment was arranged factorially using a completely randomized design. The first factor was the variety consisting of Detam 3, Detam 4, Gema, Dering 1, and Burangrang. The second factor was Trichoderma isolates formulated as bio fertilizers, consisting of Tc-Jjr-02, Tc-Pjn-01, and Tc-Jro-01. Overall this experiment has 60 experimental units. Data were analyzed by variance analysis (ANOVA) followed by an honest significant difference test at the level of 5%. The results showed that there was no interaction between soybean varieties and Trichoderma isolates formulated in bio fertilizer. Soybean varieties significantly affected plant height, wet weight, and dry weight of roots and stover at 21 days after planting. The Burangrang variety shows the best growing ability in acid soils. There was no interaction between soybean varieties and Trichoderma bio fertilizers. Trichoderma isolate Tc-Jjr-02 increased the wet weight and dry weight of the roots and roots by 48.2 and 54.5%, respectively, and 38.9 and 48.2% compared to without Trichoderma. Trichoderma application maintains soil acidity between pH 4.50-4.67.


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