Allelopathic potential of siam weed (Chromolaena odorata L.) extract for enhancing soybean productivity

Abstract Many tropical invasive species have strong allelopathic effects. Chromolaena odorata is reported to have the best potential to act as bioherbicide against several weeds on crops. This research was conducted in May-September 2019 to evaluate the efficacy of C. odorata extract on soybean plant. This study employed Randomized Block Design (RBD) Factorial with two factors. The first factor was 4 different doses of C. odorata extracts: 0, 8, 16 and 24 tons ha−1. The second factor was 3 different times of application: 0, 7 and 14 days after planting. Variables observed were number of pods per plant, seed weight per plant, weight of 100 seeds and dry seed yield. The findings indicated that the extract did have effect on seed weight per plant, weight of 100 seeds and yield of dry seeds. The application of extract 16-24 tons ha−1 has improved the seed weight per plant, weight of 100 seeds, and yield of dry seeds. There was no interaction between siam weed extract and time of application in all variables observed.

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The Influence of Various Varieties and Various Liquid Organic Fertilizer to Papaya Plant Seed Growth (Carica papaya L.)

AGRIFOR ◽

10.31293/af.v17i1.3359 ◽

2018 ◽

Vol 17 (1) ◽

pp. 153

Author(s):

Primadiyanti Arsela

Keyword(s):

Root Length ◽

Carica Papaya ◽

Block Design ◽

Organic Fertilizer ◽

Root Number ◽

Plant Seed ◽

Randomized Block Design ◽

Seed Growth ◽

Two Factors ◽

All Treatment

The main goal of the study was to determine the effect of various Papaya varieties and liquid organic fertilizer on the growth of Papaya seedlings(Carica papaya L.). The research used Randomized Block Design (RAK) with two factors factorial experimental. The first factor is Variety (V) consists of 3 Papaya varieties: v1= bangkok , v2= red lady , v3= sunrise. The second factor is Fertilizer (C) consists of 3 brands: c1= Em4 10 ml, c2= Green Tonic 10ml, c3= Nasa 10ml. This study has 3 treatment levels consisting of 9 combinations and repeated 3 times. The results of the study are treatment of various varieties (V) had significant effect on stem diameter and root number. The effect of various liquid organic fertilizer (C) had significant effect on the root length parameters. The interaction all treatment had a very significant effect on the root length and the root number parameter.

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Determination of the Optimum Rate of N Fertilizers with Addition of Goat Manure for Production of Cowpea (Vigna unguiculata [L.] Walp)

Journal of Tropical Crop Science ◽

10.29244/jtcs.6.02.121-128 ◽

2019 ◽

Vol 6 (02) ◽

pp. 121-128

Author(s):

Devi Liana ◽

Heni Purnamawati ◽

Maya Melati ◽

Yudiwanti Wahyu

Keyword(s):

Vigna Unguiculata ◽

Seed Weight ◽

Block Design ◽

Dry Weight ◽

N Fertilizer ◽

Plant Seed ◽

Optimum Rate ◽

Randomized Block Design ◽

Goat Manure ◽

100 Seed Weight

Cowpea (Vigna unguiculata L. Walp) is one of the potential substitutes of soybean due to its similar nutritional content. This study aims to determine the optimum rate of N fertilizer for the production of cowpea, and to determine the effects of the interaction between N fertilizer rates and goat manure application on cowpea production. The experiment was organized in a split-plot with a complete randomized block design with three replications. The main plot was goat manure, i.e. 0 and 5 tons.ha-1; the sub-plot was nitrogen fertilizer with five rates (0, 50, 100, 150, and 200% of the recommended rate), i.e. 0, 22.5, 45, 67.5, and 90 kg N.ha-1. Application of N fertilizer reduced the 100-seed weight and slightly reduced cowpea yield and yield components. Application of goat manure increased seed dry weight per plant, number of pods per plant, dry pod weight per plant, seed dry weight per m2, productivity, 100-seed weight, and the harvest index. There was no significant interaction between goat manure and different rates of nitrogen in affecting cowpea growth.

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Aplikasi Kompos Gulma Siam Chromolaena odorata terhadap Sifat Kimia Tanah dan Performa Tanaman Cabai

SoilREns ◽

10.24198/soilrens.v16i1.18353 ◽

2018 ◽

Vol 16 (1) ◽

Author(s):

Vira Kusuma Dewi ◽

Nugoho Susetyo Putra ◽

Benito Purwanto ◽

Sri Hartati ◽

Santika Sari

Keyword(s):

Block Design ◽

Dry Weight ◽

The Other ◽

Plant Performance ◽

High Biomass ◽

Chromolaena Odorata ◽

Fresh Weight ◽

Randomized Block Design ◽

Two Factors ◽

Positive Effect

Chromolaena odorata (L.) is a potential compost since it has high biomass and contains calcium, manganese, potassium and nitrogen. The aim of this research was to know the potency of siam weed Chromolaena odorata compost on soil chemical and chili plant performance. The experiment was arranged in factorial randomized block design consisted of two factors and three replications. The first factor was variety of fertilizer (no fertilizer, cow manure, siam weed compost and inorganic fertilizers) and the second one was the tanglefoot (with and without tanglefoot). Overall, the results of study showed that C. odorata compost could increased crop performance when compared with the other fertilizers in terms of number of fruits, fresh/dry weight of fruits, dry weight of crops, and N-total (leaf, stem, root and fruit), though there was no difference in fresh weight of crops among treatments. Furthermore, the effect of siam weed compost was not significantly different on soil chemical if compared with all treatments. This study is likely suggesting that C. odorata compost gives a positive effect to crops performance and soil chemicals.Keywords: Chili, Chromolaena odorata, compost fertilizer, tanglefoot

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Responses of Several Mungbean (Vigna radiata L. Wilczek) Cultivars to Second Nitrogen Fertilization at Early Reproductive Stage

AGROSAINSTEK Jurnal Ilmu dan Teknologi Pertanian ◽

10.33019/agrosainstek.v1i2.9 ◽

2017 ◽

Vol 1 (2) ◽

pp. 68-73

Author(s):

Sosiawan Nusifera ◽

JS Simanjuntak ◽

MS Fitriani

Keyword(s):

Nitrogen Fertilization ◽

Seed Weight ◽

Block Design ◽

N Fertilization ◽

Reproductive Stage ◽

Plant Seed ◽

Significance Level ◽

Randomized Block Design ◽

Four Levels ◽

Pod Number

Research aimed to know responses of several mungbean cultivars to second nitrogen fertilization at early reproductive stage and find the best dose for each cultivar, was conducted in experimental station of Faculty of Agriculture, Jambi University started from January 2016 until March 2016. This was a factorial experiment arranged in randomized block design with two replications. The first factor was mungbean cultivars comprised four levels namely ‘Betet’,’Walet’, ‘Parkit’, ‘Perkutut’ and the second factor was second nitrogen fertilization comprised three levels namely without second fertilization, 30 kg N ha-1 , 40 kg N ha-1 , 50 kg N ha-1 . Variables observed were period of reproductive stage (days), number of pod per plant, number of filled pod per plant, seed weight per plant (g), and 1000 seed weight (g). Data were analyzed by using analysis of variance continued with LSD test with significance level of 5%. Results indicated that there were different responses among four mungbean cultivars to second nitrogen fertilization at early reproductive stage, especially on variables of filled pod number per plant and seed weight per plant. Best dose for each cultivar was 40 kg N ha-1 for ‘Walet’ and 30 kg N ha-1 for Parkit, whereas on cultivar ‘Betet’ and ‘Perkutut’, second N fertilization seemed to have no significant effect.

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Aplikasi Dosis Vermikompos dan Urea Pada Tanaman Kedelai Varietas Anjasmoro di Tanah Berpasir

Jurnal Ilmu Pertanian Indonesia ◽

10.18343/jipi.26.4.639 ◽

2021 ◽

Vol 26 (4) ◽

pp. 639-644

Author(s):

Hesti Pujiwati ◽

Widodo Widodo ◽

Wuri Prameswari ◽

Umi Salamah ◽

Leonardo Dharmawangsa ◽

...

Keyword(s):

Sandy Soil ◽

Seed Weight ◽

Block Design ◽

Growth And Yield ◽

Low Area ◽

Randomized Block Design ◽

Two Factors ◽

Four Levels ◽

Soil Area ◽

Number Of Branches

The low area for soybean plantation is still a major problem in meeting soybean needs. One of the efforts to increase national soybean production is by expanding the planting area by utilizing the sandy soil area that is still not used for soybean cultivation. This research was conducted from September-November 2020 in a greenhouse of the Agronomy Laboratory, Bengkulu University. This study aims to obtain the best dose of urea and vermicompost for the growth and yield of soybean in sandy soil. The research design used a completely randomized block design with two factors and 3 replications. The first factor was the dose of urea consisting of four levels, namely U0 = 0 kg ha-1, U1 = 50 kg ha-1, U2 = 100 kg ha-1, and U3 = 150 kg ha-1. The second factor was the dose of vermicompost, namely K0 = 0 ton ha-1, K1 = 5 tons ha-1, K2 = 10 ton ha-1, and K3 = 15 ton ha-1. The measured variables were the plant growth and the yield. Soil and vermicompost analyses were carried out before the study. The results showed that there was an interaction between the vermicompost and the urea dosages. The 100 kg ha-1 urea and the 10 ton ha-1 vermicompost treatment gave the highest plant height. The 150 kg ha-1 urea dan the 15 ton ha-1 vermicompost treatment formed the most number of branches. The highest soybean yield was given by 15 ton ha-1 vermicompost and 50 kg ha-1 urea to the total pod and the seed weight. Keywords: sandy soil, soybean, urea, vermicompost

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HALF DIALLEL ANALYSIS FOR F3 GENERATION OF PEA (Pisum sativum L.) UNDER SULAIMANI CONDITION-IRAQ KURDISTAN REGION

IRAQI JOURNAL OF AGRICULTURAL SCIENCES ◽

10.36103/ijas.v51i3.1039 ◽

2020 ◽

Vol 51 (3) ◽

pp. 848-855

Author(s):

Towfiq & et al.

Keyword(s):

Seed Weight ◽

Block Design ◽

Diallel Analysis ◽

Plant Weight ◽

Randomized Block Design ◽

Degree Of Dominance ◽

Additive Gene ◽

The Cross ◽

Pod Length ◽

100 Seed Weight

This study was carried out at Qlyasan location in Sulaimani region (Lat 35 º 34' 307''; N, long 45º 21' 992; E, 765 masl) for F3 generation of seven pea varieties (1-Avolla, 2-Americana, 3-Jeza, 4-Joneor, 5-Packland, 6-Arvena and 7-Samara). The seeds of 21 F3 crosses and their parents were sown in Completely Randomized Block Design (CRBD).With three replicates. The results showed that the mean squares of genotypes, gca and sca were highly significant for seed weight plant-1 and most its important components. The parents Americana and Jeza recorded maximum values for all studied characters. The cross AvollaxAmericana recorded the highest value for seed weight plant-1 and pod weight plant-1. The cross AvollaxPackland had the highest value for heterosis due to seed weight plant-1 122.114% and whole plant weight 147.111%. The parent Americana recorded maximum positive gca effect value for seed weight plant-1 and some its components pod length, pod weight plant-1 and 100-seed weight. The crosses JezaxArvena recorded maximum positive sca effect value for seed weight plant-1, while the cross AvollaxArvena showed maximum positive sca effect value for pod length and pod plant-1. The average degree of dominance was more than one for all characters indicating to the importance of non additive gene effect in controlling the inheritance of these characters. Heritability in broad sense was high for seed weight plant-1 and some its components pods number plant-1, pod weight plant-1 and 100-seed weight, while it was low in narrow sense for all characters.

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EFEKTIFITAS WAKTU PEMBERIAN DAN KONSENTRASI PACLOBUTRAZOL TERHADAP PERTUMBUHAN DAN HASIL KENTANG (Solanum tuberosum L.) VARIETAS SUPEJOHN

EUGENIA ◽

10.35791/eug.18.2.2012.3566 ◽

2012 ◽

Vol 21 (3) ◽

Author(s):

Frangki Sambeka ◽

Semuel D. Runtunuwu ◽

Johannes E.X. Rogi

Keyword(s):

Crop Production ◽

Solanum Tuberosum L ◽

Potato Crop ◽

Block Design ◽

Growth And Yield ◽

Weight Class ◽

Time Of Application ◽

Randomized Block Design ◽

Two Factors ◽

Percentage Weight

ABSTRACT The study aimed to examine the influence of time of application and concentration of paclobutrazol on growth and yield of potato crop Supejohn held in District Modoinding South Minahasa regency, from March to June 2012, using a randomized block design with two factors. The first factor is the concentration of Paclobutrazol with four standards are: 0 ppm, 75 ppm, 100 ppm, 125 ppm and the second factor is the provision of a three-level applications MST 4, 5 and 6 MST MST (Week After Planting). Based on research, the results of analysis of variance showed an interaction between application timing and concentration of paclobutrazol. Combination treatment with 125 ppm paclobutrazol 6 WAP application time can give significant effect on plant height, number of chlorophyll content, percentage weight class tuber yield components in the form of increased crop production amounted to 45.04 kg / plot (24 plants) / range 52. ton / ha by pressing the vegetative growth of plants. Key words : Supejohn, time application, concentration, paclobutrazol

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Kajian Pertumbuhan Dan Produksi Varietas Jagung Lokal Dan Kacang Hijau Dalam Sistem Tumpangsari

Agrologia ◽

10.30598/a.v1i1.297 ◽

2018 ◽

Vol 1 (1) ◽

Author(s):

Febby Polnaya ◽

J.E Patty

Keyword(s):

Seed Weight ◽

Block Design ◽

Cropping System ◽

Treatment Combination ◽

Multiple Cropping ◽

Local Variety ◽

Randomized Block Design ◽

Maize Variety ◽

Two Factors ◽

Effect On Yield

The objective of this research was to determine appropriate variety combinations maize and mungbeans in multiple cropping system and the effect on yield, and also to determine Land Equivalency Ratio in the multiple cropping system. The experiment was conducted in Paso Village, Ambon City. A Randomized Block Design was used with two factors The first factor was maize variety consisting of 3 varieties: BISI-2 hybrid (J1), local variety with purple seeds (J2) and local variety with white seeds (J3). The second factor was mungbean variety, consisting of 3 varieties: Murai variety (K1), local variety with red seeds (J2) and local variety with matt seeds (J3). Each treatment had three replicates and 6 monocultures were added as control. Results of the experiment showed that maize variety and mungbeans variety affected significantly on growth and crop yield. BISI-2 maize produced highest seed number per row, 100 seed weight and seed weight per plot, and pod number per plant. J1K1 treatment combination gave highest seed weight per hectare, i.e. 7,63 ton of maize and 0.73 ton/ha of mungbean seeds. There was a significant effect of the interaction on Land Equivalency Ratio, and the highest value (4.07) was found in the treatment combination of J1K1

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Seleksi Satu Tongkol Satu Baris (Ear to Row Selection) pada Tanaman Jagung (Zea mays L.)

Rekayasa ◽

10.21107/rekayasa.v12i1.5228 ◽

2019 ◽

Vol 12 (1) ◽

pp. 18

Author(s):

Achmad Amzeri

Keyword(s):

Genetic Diversity ◽

Zea Mays ◽

Seed Weight ◽

Block Design ◽

Maize Plant ◽

Mass Selection ◽

Study Program ◽

Plant Seed ◽

Randomized Block Design ◽

Maize Plants

Seleksi satu tongkol satu baris merupakan modifikasi seleksi massa yang merupakan salah satu metode seleksi yang dapat meningkatkan produksi dan karakter lain pada tanaman. Tujuan penelitian ini adalah untuk menguji 20 genotip hasil seleksi tongkol pada tahun pertama. Penelitian dilakukan di Kebun Percobaan dan Laboratorium Agroteknologi Fakultas Pertanian Universitas Trunojoyo Madura pada bulan Januari 2018 - April 2018. Genotip yang digunakan dalam penelitian ini adalah 20 genotip jagung hasil seleksi tanaman (tongkol) pada tahun pertama, yaitu : G1, G2, G3, G4, G5, G6, G7, G8, G9, G10, G11, G12, G13, G14, G15, G16, G17, G18, G19 dan G20. Penelitian menggunakan Rancangan Acak Kelompok dengan tiga ulangan. Uji F digunakan untuk menganalisis pengaruh genotip, apabila hasilnya signifikan maka dilakukan uji lanjut menggunakan Uji BNJ pada taraf 5%. Heritabilitas digunakan untuk mengukur pengaruh genetik dan lingkungan pada karakter tanaman jagung. Koefesien keragaman genetik dan fenotip untuk menghitung keragaman genetik karakter tanaman jagung. Hasil penelitian menunjukkan bahwa dua puluh genotip yang diuji memiliki perbedaan penampilan yang nyata pada karakter diameter tongkol, diameter jenggel, berat tongkol per tanaman, berat biji per tanaman, berat 100 biji dan produksi per hektar. Nilai heritabilitas dalam arti luas 20 genotip yang diuji berkisar antara 8,935 sampai 96,43%. Karakter tinggi letak tongkol, karakter diameter jenggel, berat tongkol per tanaman, Berat biji per tanaman, berat 100 biji dan produksi per hektar memiliki keragaman genetik sedang. Dihasilkan 9 genotip yang digunakan sebagai bahan untuk program seleksi berikutnya yaitu G8, G11, G12, G13, G15, G17, G18, G19 dan G20 karena memiliki produksi per hektar terbaik. EAR TO ROW SELECTION IN MAIZE PLANT (Zea mays L.)ABSTRACT Ear to row selection is a modification of mass selection which is one of the selection methods that can increase production and other characters in plants. The objective of this research was to evaluate 20 genotypes of cob selection results in the first year. This research was conducted at the experimental station Agrotechnology Study Program, Faculty of Agriculture, University Trunojoyo of Madura, from January to April 2018. The Genotypes used, were: G1, G2, G3, G4, G5, G6, G7, G8, G9, G10, G11, G12, G13, G14, G15, G16, G17, G18, G19 dan G20. The design of this research was a randomized block design with three replications. Data were analyzed with F-test then continued with HSD test (α=5%). Heritability is used to measure genetic and environmental influences on the characteristics of maize plants. Coefficient of Genetic diversity and phenotype to calculate the genetic diversity of the characteristics of maize plants. The results showed that 20 genotypes tested had significant differences in appearance on the character of cob diameter, beard diameter, cob weight per plant, seed weight per plant, the weight of 100 seeds and production per hectare. Heritability values in the broad sense of 20 genotypes tested ranged from 8,935 to 96.43%. The character of cob position height, beard diameter character, cob weight per plant, Seed weight per plant, the weight of 100 seeds and production per hectare have medium genetic diversity. Obtained 9 genotypes were used as materials for the next selection program, namely G8, G11, G12, G13, G15, G17, G18, G19, and G20 because they had the best production per hectare.Keyword: Ear to row selection, a maize plant, heritability, coefficient of genetic diversity

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Respon Pertumbuhan dan Daya Tahan Hidup Setek Mikro Krisan

Paspalum: Jurnal Ilmiah Pertanian ◽

10.35138/paspalum.v1i2.81 ◽

2018 ◽

Vol 1 (2) ◽

pp. 33

Author(s):

Gina Gustiani Pitaloka ◽

Ai Komariah

Keyword(s):

Shelf Life ◽

Shoot Growth ◽

Block Design ◽

Chrysanthemum Morifolium ◽

Optimum Concentration ◽

Plant Weight ◽

Micro Cutting ◽

Randomized Block Design ◽

Two Factors ◽

Four Levels

The objectives of this experiment was to study the interaction between NAA and alginate concentrations on growth and shelf life of Chrysanthemum morifolium Rahmat Syn. Micro cutting in capsule. Design of this experiment used Randomized Block Design with two factors and two replication. The first factor wa concentration of NAA consisted of three levels (0.00 ppm, 0.10 ppm, and 0,15 ppm) and the second factor was concentration of alginate consisted of four levels (1.5%, 2%, 2.5% and 3.0%).the result of experiment showed that interaction among concentration of NAA and alginate on capsule texture, plant weight, leaves number, leaves weight, and shelf life of plant in capsule. There was no interaction between concentration of NAA and alginate on percentage of green capsules, percentage of micro cutting shoot growth, and percentage of capability of shoot growth break through capsule. Optimum concentration for plant weight was 0.1281 ppm NAA and 2.4671% alginate, with maximum weight was 0.0145 grams. Optimum concentration for shelf life of micro cutting in capsule was 0.1191 ppm NAA and 2.8071% alginate, with maximum shelf life was 5.9541 days.

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