The Allelopathic Effects Characteristics of Fresh Jatropha (Jatropha curcas L.) Leaves Extract on the Germination and Growth of Bok Choy (Brassica rapa L.) Sprouts

The purpose of this study was to determine the concentration of Jatropha (Jatropha curcas L.) leaves extract on the germination and growth of Bok Choy (Brassica rapa L.). This study employed the completely randomized design with Jatropha (Jatropha curcas L.) leaves extract as the primary factor within 5 levels of concentration, namely 0% v/v, 5% v/v, 10% v/v, 15% v/v, and 20% v/v. The treatments were repeated 5 times. The variables measured in this study were root length, fresh and dry weight (aerial part and root), the length of aerial part, relative water content, and the total count of chlorophyll a,b. The homogeneity of the data was tested using the Levene statistics. The results showed that allelopathy of the Jatropha caused a stimulatory effect on the fresh weight and the dry weight of the sprouts with a maximum concentration of 10% v/V. The fresh weight increased from 38.22 to 49.16 or 22.25% while the dry weight increased from 3.40 to 4.42 or 23.07%. Karakteristik Efek Alelopati Ekstrak Air Daun Segar Jarak Pagar (Jatropha Curcas L.) Terhadap Perkecambahan Dan Pertumbuhan Kecambah Sawi Pakcoy (Brasicca Rapa L.) Abstrak: Tujuan dari penelitian ini adalah untuk mengetahui konsentrasi ekstrak air daun jarak pagar (Jatropha curcas L.) terhadap perkecambahan dan pertumbuhan kecambah sawi pakcoy (Brassica rapa L.). Penelitian ini menggunakan metode RAL (Rancangan Acak Lengkap) dengan faktor utamanya adalah ekstrak air daun jarak pagar (Jatropha curcas L.) dengan 5 taraf konsentrasi yaitu 0% v/v, 5% v/v, 10% v/v, 15% v/v, dan 20% v/v sebagai perlakuan dan setiap perlakuan diulang sebanyak 5x. Variabel yang diukur dalam penelitian ini panjang akar, berat segar dan berat kering (aerial part dan akar), panjang aerial part, kadar air relative, dan kandungan klorofil a,b serta total kecambah. Data yang diperoleh di homogenitas dengan uji Levene. Hasil penelitian menunjukkan bahwa alelopati dari jarak pagar menyebabkan efek stimulasi terhadap berat segar kecambah dan berat kering kecambah dengan konsentrasi maksimum 10% v/v. Berat segar mengalami peningkatan dari 38,22 menjadi 49,16 atau sebesar 22,25% sedangkan berat kering mengalami peningkatan dari 3,40 menjadi 4,42 atau sebesar 23,07%.

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Nutrient accumulation, export and cycling in Jatropha curcas L .

Revista CERES ◽

10.1590/0034-737x201663030013 ◽

2016 ◽

Vol 63 (3) ◽

pp. 361-370

Author(s):

Carlos Hissao Kurihara ◽

Hamilton Kikuti ◽

Flávio Ferreira da Silva Binotti ◽

Cesar José da Silva

Keyword(s):

Jatropha Curcas ◽

Aerial Part ◽

Accumulation Rate ◽

Nutrient Accumulation ◽

Mato Grosso ◽

Jatropha Curcas L ◽

The Third ◽

Randomized Design ◽

Completely Randomized Design ◽

Mato Grosso Do Sul

ABSTRACT The knowledge concerning nutrient accumulation rate allows defining the best amount and most appropriate time for its supply. Estimating nutrient amount in the aerial part of the plants is particularly important to species such as Jatropha curcas L., since there are no consistent calibration studies to indicate the amount of fertilizer to be applied. The objective of this study was to evaluate nutrient accumulation, export and cycling in Jatropha curcas. The experiment was carried out in Cassilândia, state of Mato Grosso do Sul, Brazil, during 52 months in a completely randomized design, with four replications and fifteen treatments, which consisted of different evaluation times. A large variation in the amount of nutrients accumulated in leaves was found due to senescence and leaf abscission in the driest and/or coldest period of the year. Nutrient accumulation in the aerial part is relatively low in the first 22 months. To meet Jatropha curcas requirements, fertilization during the first two years must provide 40; 50; 50; 21; 16; 5; 0.7; 0.3; 4; 8 and 1 kg ha-1 of N, P2O5, K2O, Ca, Mg, S, B, Cu, Fe, Mn and Zn, respectively. From the third year of cultivation, topdressing fertilization should restitute 40, 110, 55 and 3 kg ha-1 of N, P2O5, K2O and S, respectively. To replace the exported amount of nutrients, it should be supplied more 50, 100, 30 and 3 kg ha-1 of N, P2O5, K2O and S, respectively, per ton of grain to be produced.

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Use of babassu decomposed stem substrate on the vegetative propagation of Euphorbia splendens

Research Society and Development ◽

10.33448/rsd-v9i9.7916 ◽

2020 ◽

Vol 9 (9) ◽

pp. e861997916

Author(s):

Amália Santos da Silva ◽

Larissa Ramos dos Santos ◽

Paula Sara Teixeira de Oliveira ◽

Lídia Ferreira Moraes ◽

Janaiane Ferreira dos Santos ◽

...

Keyword(s):

Vegetative Propagation ◽

Root Length ◽

Aerial Part ◽

Linear Regression Analysis ◽

Dry Weight ◽

Fresh Weight ◽

Randomized Design ◽

Shoot Number ◽

Number Of Leaves ◽

Completely Randomized Design

The present study aimed to evaluate the use of the babassu decomposed stem under different proportions in substrate composition for the vegetative propagation of Euphorbia splendens. The experiment was conducted in a greenhouse and we used a completely randomized design with six treatments and four repetitions. Six types of substrates were formulated using a mixture of babassu decomposed stem (BDS) and soil (SL) in the proportions of 100% SL, 20:80 % BDS:SL, 40:60 %, BDS:SL, 60:40 % BDS:SL, 80:20 % BDS:SL and 100 % BDS. The seedlings were evaluated at 45 days after cutting by measuring the diameter of the longest shoot, number of leaves, number of shoots, root length, root volume, largest shoot length, fresh weight of the aerial part, root fresh weight, dry weight of the aerial part, and root dry weight. The treatments that presented normality and homoscedasticity were submitted to simple linear regression analysis. The proportion of the substrate of 20: 80% BDS: SL has a greater length of the largest shoot about the substrate 80:20% BDS: SL. The diameter of the largest sprout, the number of leaves, and the root length decreased due to the increase in the proportion of babassu decomposed stem in the substrates. The production of seedlings using cuttings of Euphorbia splendens is facilitated by the fact that it is a species with easy rooting, therefore, it is not necessary to use substrates with proportions of babassu decomposed stem and soil for its vegetative propagation.

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Pengaruh Campuran Pasir dan Serat Aren pada Kailan (Brassica oleraceae) dengan Hidroponik Substrat

Agrosains: Jurnal Penelitian Agronomi ◽

10.20961/agsjpa.v16i1.18908 ◽

2014 ◽

Vol 16 (1) ◽

pp. 19

Author(s):

Samanhudi Samanhudi ◽

Dwi Hardjoko ◽

Riandy Adhitya

Keyword(s):

Wood Fiber ◽

Dry Weight ◽

Fresh Weight ◽

Randomized Design ◽

The Media ◽

Number Of Leaves ◽

Completely Randomized Design ◽

Brassica Oleraceae ◽

Media Mix ◽

Leaf Greenness

Wood fiber waste of arenga produced from starch palm industry. It is not handled properly so that could be potentially cause problems for the surrounding community. Wood fiber waste of arenga is potentially used as a medium for hydroponics. The waste can be utilized to get a new composition of hydroponic media. This study aims to determine the effect of a mixture of sand with arenga fiber waste. This research was carried out by using a mixture of sand and arenga wood fiber waste as a medium. This is an experimental study using a completely randomized design. This study aims to determine the effect of a mixture of sand and arenga fiber waste for kailan growth. The results showed that the mixture of sand and arenga wood fiber waste has no effect on kailan growth. The combination of mixtures of sand and arenga fiber waste showed no interaction. Observations on plants such as plant height, number of leaves, leaf greenness levels, the fresh weight of crop stover and stover dry weight of the plant, showed a row of the highest results in the media mix washed sand, washed sand and rice husk

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Keragaman Genetik Beberapa Genotipe Jarak Pagar (Jatropha curcas L.) Berdaya Hasil Tinggi Berdasarkan Karakter Morfologi, Agronomi, dan Isozim

Jurnal AgroBiogen ◽

10.21082/jbio.v9n1.2013.p28-38 ◽

2016 ◽

Vol 9 (1) ◽

pp. 28 ◽

Cited By ~ 1

Author(s):

Iswari S Dewi ◽

Yusie Arisanti ◽

Bambang S. Purwoko ◽

Hariyadi Hariyadi ◽

M. Syukur

Keyword(s):

Genetic Variation ◽

Jatropha Curcas ◽

Yield Components ◽

Oil Content ◽

Similarity Coefficient ◽

Jatropha Curcas L ◽

Quantitative Characters ◽

Randomized Design ◽

Qualitative Characters ◽

Completely Randomized Design

The interest in using Jatropha curcas L. from the family Euphorbiaceae for the production of biofuel is rapidly growing. The research objective was to determine genetic variation of several high yielding physic nuts based on their morphology, agronomy, and isozyme characters. The research used Completely Randomized Design with three replications. The treatment was consisted of 8 genotypes i.e. IP-1A, IP-1M, IP-2P, Lombok Timur, Lombok Tengah, Lombok Barat, Sumbawa, and Bima. Analysis of isozyme of the eight genotypes was also conducted according to 5 enzyme systems, i.e. peroksidase, esterase, aspartat aminotransferase, malat dehidrogenase, and alcohol dehidrogenase. Observation was done on qualitative and quantitative characters as well as banding pattern derivedisozymes. The results showed that genetic variation was low when based on qualitative characters and isozyme (0-25%) but relatively high when based on selected quantitative characters analysis (17-81%). Analysis of combined qualitative, quantitative, and isozyme characters still gave low genetic variation (6-33%). Based on the quantitative characters at similarity coefficient of 46% the genotypes can be devided into three clusters. Improved population genotypes, i.e. IP-1A, IP-1M, and IP-2P were placed in 3 different clusters, while other genotypes from NTB area were grouped in the same cluster. Therefore, selection among population of the same ecotype based on agronomic characters such as yield components, yield and oil content was suitable in Jatropha improvement, especially when genetic variation was low. Furthermore, introduction, mutation and crossing are suggested to increase genetic variation of current Jatropha collection.

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Respon Pertumbuhan Stek Anggur (Vitis vinifera L.) terhadap Pemberian Beberapa Konsentrasi Ekstrak Bawang Merah (Allium ascalonicum L.)

Akta Agrosia ◽

10.31186/aa.19.1.20-27 ◽

2016 ◽

Vol 19 (1) ◽

pp. 20-27

Author(s):

Tri Utami ◽

Hermansyah Hermansyah ◽

Merakati Handajaningsih

Keyword(s):

Dry Weight ◽

Optimum Concentration ◽

Vitis Vinifera L ◽

Fresh Weight ◽

Shoot Height ◽

Extract Concentration ◽

Randomized Design ◽

Number Of Leaves ◽

Completely Randomized Design ◽

The City

The purpose of this study was to determine the optimum concentration of shallot extract to the growth of grape cuttings grape cuttings. This study was conducted from September to December 2015 in the city of Bengkulu. This research used Completely Randomized Design with a single factor and five replications. Treatment concentrations of 0% (control), shallot extract concentration of 25%, 75% and 100%. The variables measured were the time to sprout, shoot height, the number of leaves, number of roots, fresh weight and dry weight of cuttings. The results showed that the concentration of shallot extract 100% concentration enhances the growth of grape cutting, time to sprout, and the concentration of extract 50% increase shoot height and number of leaves on grape cuttings.

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PENGARUH KOMBINASI PUPUK ORGANIK DAN PUPUK HAYATI TERHADAP PERTUMBUHAN, PRODUKSI DAN MUTU PEGAGAN

Buletin Penelitian Tanaman Rempah dan Obat ◽

10.21082/bullittro.v32n1.2021.23-30 ◽

2021 ◽

Vol 32 (1) ◽

pp. 23

Author(s):

Rahma Widyastuti ◽

Nurul Husniyati Listyana ◽

Erri Setyo Hartanto

Keyword(s):

Dry Weight ◽

Growth And Yield ◽

Stem Length ◽

Fresh Weight ◽

Chemical Fertilizers ◽

Cultivation Method ◽

Organic Cultivation ◽

Randomized Design ◽

Number Of Leaves ◽

Completely Randomized Design

Gotu kola is one of the medicinal plants that has begun to be cultivated by the Indonesian people. It’s cultivation needs to follow the GAP to produce the qualified yield, including the use of fertilizers. Biofertilizers have been widely developed to reduce adverse effects of chemical fertilizers to the environment, thus an organic cultivation method can be an alternative. The aim of this study was to determine the effect of biofertilizer on growth and yield of gotu kola. This research was an experimental study with a completely randomized design (CRD) using 8 planting media treatments consisting of (a) Soil + manure + dolomite; (b) Soil manure + 1 g biofertilizer; (c) Soil + dolomite + 1g biofertilizer; (d) Soil + manure + 3 biofertilizer; (e) Soil + dolomite + 3 biofertilizer; (f) Soil + manure + 5 g biofertilizer; (g) Soil + dolomite + 5 g biofertilizer; and (h) Soil + 3 g biofertilizer. Parameters observed were leaf area, stem length, number of leaves, number of tillers, fresh weight, dry weight and asiaticoside content. The results showed that combination treatment of biofertilizer (1 g) with dolomite (30 g) gives better effect in increasing the number of tillers and number of leaves, while the combination of biofertilizer (5 g) and dolomite (30 g) is the best for asiaticoside levels in gotu cola.

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Pengaruh Jenis Pupuk dan Tingkat Arbuskular Mikoriza terhadap Pertumbuhan dan Hasil Jahe (Zingiber officinale)

Agrosains: Jurnal Penelitian Agronomi ◽

10.20961/agsjpa.v16i2.18918 ◽

2014 ◽

Vol 16 (2) ◽

pp. 44

Author(s):

Dhimas Taufika Putra ◽

Samanhudi Samanhudi ◽

Purwanto Purwanto

Keyword(s):

Mycorrhizal Fungi ◽

Arbuscular Mycorrhizal ◽

Dry Weight ◽

Zingiber Officinale ◽

Chicken Manure ◽

Growth And Yield ◽

Fresh Weight ◽

Randomized Design ◽

Medical Plant ◽

Completely Randomized Design

Ginger (Zingiber officinale) is one kind of plants to be processed as traditional medicine, drinks, and spices. the smallest type of ginger that has many benefits as medical plant. Demand for ginger plants growing in the community is increasing. Additions of manure and arbuscular mychorrhizal fungi (AMF) can increase the quality and quantity of ginger. This was conducted to obtain the kinds of manure and levels of AMF to ginger to produce optimum growth and yield. This research used a completely randomized design (CRD) consisting of two treatment factors, namely planting medium and arbuscular mycorrhizal fungi (AMF). Results were analyzed by analysis of variance and if there is a real difference continued DMRT 5% level. The results showed that the differences in the kinds of manure and the levels of AMF increase growth and yield of ginger. Chicken manure application showed the highest results in the fresh weight of stover plant, dry weight of plant stover, fresh weight of plant rhizomes, and dry weight of the rhizomes. Whereas the additions of AMF 15 grams per plant in zeolite showed the highest results in the number of plant tillers, dry weight of plant stover, fresh weight of plant rhizomes, and dry weight of the rhizomes.

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Production of Brachiaria decumbens Grass at Various Levels of Drought Stress Treatment

Jurnal Peternakan Integratif ◽

10.32734/jpi.v5i3.2134 ◽

2018 ◽

Vol 5 (3) ◽

Author(s):

A F A Putra ◽

N D Hanafi ◽

Hamdan ◽

M Tafsin ◽

R E Mirwandhono

Keyword(s):

Drought Stress ◽

Plant Height ◽

Field Capacity ◽

Dry Weight ◽

Water Volume ◽

Fresh Weight ◽

Brachiaria Decumbens ◽

Stress Treatment ◽

Randomized Design ◽

Completely Randomized Design

This study aims to determine effects of production of Brachiaria decumbens grass on different drought stress treatments. Research was conducted at the Greenhouse Faculty of Agriculture University of North Sumatera from Desember 2016 until April 2017. The design used was Completely Randomized Design (CRD), with three treatments and seven replications. The treatment consisted of three levels of drought stress which were control (100% field capacity=fc), medium drought stress (25% fc), and heavy drought stress (50% fc). The variable were fresh weight production, dry weight production and plant height. The results showed that drought stress treatment control (100% fc) significantly (P<0,05) affect fresh weight production, dry weight production, but not plant height. It is concluded that increasing water volume of field capacity increase production Brachiaria decumbens grass.

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Effects of Trichoderma-enriched biofertilizer and farmyard manure on the growth and yield of brinjal (Solanum melongena L.)

Dhaka University Journal of Biological Sciences ◽

10.3329/dujbs.v29i1.46525 ◽

2020 ◽

Vol 29 (1) ◽

pp. 1-8

Author(s):

Sonia Hossain ◽

Farjana Akter

Keyword(s):

Farmyard Manure ◽

Solanum Melongena ◽

Dry Weight ◽

Growth And Yield ◽

Control Analysis ◽

Fresh Weight ◽

Yield Parameters ◽

Randomized Design ◽

Completely Randomized Design ◽

Stem Leaf

A pot experiment was carried out to assess the comparative effects of Trichoderma-enriched biofertilizer and farmyard manure on the growth and yield components of brinjal (Solanum melongena L.). The treatments were T0 (control), T1 (Trichoderma-enriched biofertilizer 5 t/ha), T2 (Trichoderma-enriched biofertilizer 10 t/ha), T3 (Trichoderma- enriched biofertilizer 15 t/ha), T4 (Farmyard manure 5 t/ha), T5 (Farmyard manure 10 t/ha) and T6 (Farmyard manure 15 t/ha). The experiments were laid out in completely randomized design (CRD) with three replications of each treatment. Among the different treatments T3 showed best as much as twice more effective than farmyard manure in increasing growth and yield parameters (plant height, fruit length, fresh weight and dry weight of stem, leaf and fruit) of brinjal plants. Overall, all the treatments increased macronutrients and micronutrients content and uptake by brinjal plants over control. Analysis of post-harvest soil samples also revealed that all the parameters except pH were increased due to different treatments. Dhaka Univ. J. Biol. Sci. 29(1): 1-8, 2020 (January)

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Pengaruh Sistem Hidroponik dan Media Tanam Terhadap Pertumbuhan dan Produksi Tanaman Sawi (Brassica rapa L)

Agrifarm : Jurnal Ilmu Pertanian ◽

10.24903/ajip.v8i1.529 ◽

2019 ◽

Vol 8 (1) ◽

pp. 32

Author(s):

Nur Hafijah ◽

Tutik Nugrahini ◽

Zainudin Zainudin

Keyword(s):

Plant Height ◽

Brassica Rapa ◽

Leaf Width ◽

Fresh Weight ◽

Hydroponic System ◽

East Kalimantan ◽

Randomized Design ◽

The Media ◽

Number Of Leaves ◽

Completely Randomized Design

Effect of hydroponic systems and planting media on growth and production of mustard plants (Brassica rapa L) The purpose of this study was to determine the effect of systems and different hiodroponic growing media on the growth and production of mustard plants. This research was conducted for 3 months, starting from June to September 2017. The research location was located in Embalut village, Tenggarong Sub-District, across the Kutai Kartanegara Regency, East Kalimantan Province. The research design used was Completely Randomized Design (CRD) consisting of 2 factors with 5 replications, the first factor was the hydroponic system consisting of 3 (three) levels, namely: system wick (s₁), system NFT (s₂), system DFT (s₃) . The second factor is m₁ = husk charcoal, m₂ = Cocopeat, m₃ = Rockwool. The results of this study indicate that the treatment system has a very significant effect on the average number of leaves, leaf width, plant height, leaf width of mustard plants aged 4, 5 and 6 mst, did not significantly affect the fresh weight of mustard plants. The media treatment did not affect the average number of leaves, plant height, leaf width of plants at 4, 5, 6 and fresh weight of plants did not have significant effect. The effect of the best system treatment on the growth of mustard plants produced by the NFT system (s₂), the best media treatment for the growth of mustard plants was produced by the Cocopeat treatment (m₂). The highest interaction with the fresh weight of mustard plants was produced by a combination of treatment s₂xm₂.;

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