Brown Spot and Stalk Rot Diseases of Maize (Zea Mays) and Susceptibility of Two Varieties to Physoderma Maydis in Far North Cameroon

Corn (Zea mays L.) is one of the most widely grown cereals in the world. However, in Cameroon, particularly in the Far North Region, yields remain low because of diseases increasing due to farming practices and climate change. This work aimed to characterize Brown Spot and Stalk Rot of corn and evaluate the susceptibility of two maize varieties to Physoderma maydis in field conditions. Two maize varieties, CMS9015, and CMS8704 were evaluated in a randomized block design. Disease symptoms were observed and described using identification keys. Microscopic characteristics of pathogens were performed using a microscope. Incidence, severity, and areas under disease curve progress (AUIPC and AUSiPC) were calculated. Brown spot occurred 3 or 4 weeks after sowing (WAS) at the growing stage in CMS8704 variety first, and stalk rot 7 WAS. Brown spot appeared in leaves and is characterized by oval yellowish spots in the leaf blade and brownish spots in the midrid. Stalk rot infects stem nodes and is characterized by brownish spots, leading to the broken stem. The incidence of brown spot increased with time and environmental conditions (rainfall). The highest incidence of Physoderma Brown Spot was recorded with CMS8704 variety 53.06 % against 51.72 % with CMS9015. Severity was respectively 54.40 % and 47.12 % with CMS8704 and CMS9015. The incidence and severity of stalk rot were almost identical in both varieties. AUIPC of PBS and PSR was higher in CMS9015 than in CMS 8704, 63 DAS. PBS and PSR infect maize production, and both varieties are susceptible to P. maydis.

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Effect Of Grant Palm Oil Ash To The Growth And Production Of Two Corn Varieties (Zea Mays L) In Peatland

10.31219/osf.io/m79v8 ◽

2020 ◽

Author(s):

Marlina

Keyword(s):

Zea Mays ◽

Palm Oil ◽

Zea Mays L ◽

Soil Analysis ◽

Block Design ◽

Peat Soil ◽

Randomized Block Design ◽

Maize Varieties ◽

Two Factors

The study, entitled the effect of the administration of Palm Oil Long Palm (AJKS) to the growth and production of two corn varieties inpeatlands, was carried out from October 2017 to March 2018 in trench 3 in Tembilahan Hulu Village, Tembilahan Hulu District, Indragiri Hilir Regency,soil analysis and AJKS conducted at the Bogor Institute of Agriculture Laboratory. The purpose of this study was to determine the effect of AJKSadministration on the growth and production of two maize varieties (Zea mays L) on peatlands, and to determine whether there was an interactionbetween the dosage of AJKS and corn varieties on peat soil ameliorating AJKS. The design used was factorial Randomized Block Design (RBD) using 2factors with three replications. The first factor is the dose of AJKS administration consisting of 4 levels, namely: A0: 0 kg / ha, A1: 500 kg / ha, A2: 1000kg / ha, A3: 1500 kg / ha. The second factor is corn varieties with 2 levels, namely: V1: Pioneer Varieties and V2: Varieties N35. Of the two factors aboveobtained 8 treatment combinations. Based on the results of research that has been done, that there is no real interaction and influence between thetreatment of giving AJKS with varieties to all observed parameters. Giving AJKS 1500 kg / ha gives the highest yields on all parameters observed exceptfor the number of cobs, Pioneer variety is the variety that responds most to AJKS administration.

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Response of Zea mays var. Jala to Burkholderia sp. and Klebsiella oxytogena under reduced urea dose

Ingeniería Agrícola y Biosistemas ◽

10.5154/r.inagbi.2019.10.070 ◽

2020 ◽

Vol 12 (2) ◽

pp. 173-182

Author(s):

Dieter Plata-Guzmán ◽

Juan Luis Ignacio-de la Cruz ◽

Juan Carlos Carrillos-Amezcua ◽

Juan Manuel Sánchez-Yáñez

Keyword(s):

Zea Mays ◽

Nitrogen Fertilizer ◽

Block Design ◽

Dry Weight ◽

Soil Conditions ◽

Plant Growth Promoting Bacteria ◽

Maize Production ◽

Maize Seeds ◽

Randomized Block Design ◽

Maize Varieties

Introduction: The growing of maize (zea mays L.) in Latin America is carried out under the intensive production system, which causes loss of soil fertility due to excessive nitrogen fertilizer. Objective: Analyzing the response of maize var. Jala to genera of plant growth promoting bacteria (PGPB) endophytes of maize var. Mexicana (teocintle) when using nitrogen fertilizer such as urea at 50 % under greenhouse and soil conditions. Methodology: A randomized block design was established with five treatments, three controls and twenty repetitions. The treatments with inoculated maize seeds and 50 % urea were: Burkholderia (KO) and Burkholderia sp. 14 (B14); the controls were: non-inoculated maize with 50 % urea (RC1), non-inoculated maize irrigated with water (FC) and non-inoculated maize with 100 % urea (RC2). The experiments were established under greenhouse and soil conditions. The response variables were radical dry weight (RDW) and fresh weight of grain (FWG). ANOVA and Tukey’s mean comparison (P ≤ 0.01) were carried out. Results: In both environments, treatment B14 showed statistically higher values than those obtained with FC (full control), but statistically equal to RC2 (relative control). Study limitations: Maize varieties have specific and beneficial endophytic PGPB genera, which are not necessarily for regional varieties. Originality: PGPB endophytes from teocintle (ancestor of maize) were used because of their close genetic relationship with the maize var. Jala. Conclusion: PGPB endophytes from teocintle are a viable option for sustainable maize production.

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Effect Of Grant Palm Oil Ash To The Growth And Production Of Two Corn Varieties (Zea mays L) In Peatland

10.31219/osf.io/d9r5h ◽

2020 ◽

Author(s):

mulono apriyanto bin sugeng rijanto

Keyword(s):

Zea Mays ◽

Palm Oil ◽

Zea Mays L ◽

Soil Analysis ◽

Block Design ◽

Peat Soil ◽

Randomized Block Design ◽

Maize Varieties ◽

Two Factors

The study, entitled the effect of the administration of Palm Oil Long Palm (AJKS) to the growth and production of two corn varieties in peatlands, was carried out from October 2017 to March 2018 in trench 3 in Tembilahan Hulu Village, Tembilahan Hulu District, Indragiri Hilir Regency, soil analysis and AJKS conducted at the Bogor Institute of Agriculture Laboratory. The purpose of this study was to determine the effect of AJKS administration on the growth and production of two maize varieties (Zea mays L) on peatlands, and to determine whether there was an interaction between the dosage of AJKS and corn varieties on peat soil ameliorating AJKS. The design used was factorial Randomized Block Design (RBD) using 2 factors with three replications. The first factor is the dose of AJKS administration consisting of 4 levels, namely: A0: 0 kg / ha, A1: 500 kg / ha, A2: 1000 kg / ha, A3: 1500 kg / ha. The second factor is corn varieties with 2 levels, namely: V1: Pioneer Varieties and V2: Varieties N35. Of the two factors above obtained 8 treatment combinations. Based on the results of research that has been done, that there is no real interaction and influence between the treatment of giving AJKS with varieties to all observed parameters. Giving AJKS 1500 kg / ha gives the highest yields on all parameters observed except for the number of cobs, Pioneer variety is the variety that responds most to AJKS administration.

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Effect Of Grant Palm Oil Ash To The Growth And Production Of Two Corn Varieties (Zea Mays L) In Peatland

10.31219/osf.io/64bvq ◽

2020 ◽

Author(s):

mulono apriyanto bin sugeng rijanto

Keyword(s):

Zea Mays ◽

Palm Oil ◽

Zea Mays L ◽

Soil Analysis ◽

Block Design ◽

Peat Soil ◽

Randomized Block Design ◽

Maize Varieties ◽

Two Factors

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Evaluation of intercropping systems in spring maize with sunflower and urdbean in North Western plain of India

SAARC Journal of Agriculture ◽

10.3329/sja.v12i1.21110 ◽

2014 ◽

Vol 12 (1) ◽

pp. 26-32 ◽

Cited By ~ 1

Author(s):

A Bhatnagar ◽

MS Pal

Keyword(s):

Zea Mays ◽

Zea Mays L ◽

Block Design ◽

Biological Efficiency ◽

Land Equivalent Ratio ◽

Randomized Block Design ◽

Spring Maize ◽

Sole Cropping ◽

North Western ◽

Equivalent Yield

A field experiment was conducted for two years (2007 and 2008) at the G. B. Pant University of Agriculture and Technology, Pantnagar, to study the productivity, biological efficiency and economics of intercropping in spring maize (Zea mays L.) with sunflower (Helianthus annuus L.) and urdbean (Vigna mungo L.) under different spatial arrangements. The experiment consisting of ten treatments i.e. three sole crops (maize, sunflower and urdbean), six replacement intercropping system of maize with each sunflower and urdbean in row ratios of 1:1, 2:1 and 3:1 and one additive intercropping system of maize with urdbean in row ratios of 1+1 was laid out in randomized block design with three replications. The intercropping system of maize with urdbean in row ratio (1+1) was found beneficial over sole cropping of maize and gave the maximum maize-equivalent yield (5847 kg ha-1), land-equivalent ratio (1.36) and net return (Rs.13420 ha-1). Intercropping of maize in replacement arrangement was not productive and advantageous than respective sole crops. DOI: http://dx.doi.org/10.3329/sja.v12i1.21110 SAARC J. Agri., 12(1): 26-32 (2014)

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PERFORMANCE PRODUTIVA DE CULTIVARES DE MILHO EM TRÊS SISTEMAS DE CULTIVO NO LESTE MARANHENSE

Revista Brasileira de Milho e Sorgo ◽

10.18512/rbms.v15i3.654 ◽

2017 ◽

Vol 15 (3) ◽

pp. 520

Author(s):

FRANCISCO CHARLES DOS SANTOS SILVA ◽

MARIA DA CRUZ CHAVES LIMA MOURA ◽

JOSÉ RONEILSON SILVA COSTA ◽

EGON BASTOS DE OLIVEIRA ◽

ITALO JHONNY COSTA

Keyword(s):

Zea Mays ◽

Zea Mays L ◽

Block Design ◽

Cropping System ◽

Farming Systems ◽

Correct Choice ◽

Local Conditions ◽

Maize Cultivars ◽

Randomized Block Design ◽

The City

RESUMO – O Leste Maranhense corresponde à mais nova fronteira agrícola do Brasil. Entretanto, fatores limitantesda produtividade, como a escolha correta da variedade e o sistema de cultivo mais adequado para as condições locais,ainda são desconhecidos. Objetivou-se estudar o desempenho produtivo de 17 genótipos de milho, sob três sistemasde cultivo para a região. Foram realizados dois experimentos, um na cidade de Chapadinha e outro na cidade de Brejo,sendo avaliados 17 genótipos ao todo. Os ensaios foram dispostos no delineamento em blocos casualisados com quatrorepetições em esquema fatorial 3x10 [10 cultivares e três sistemas de cultivo (plantio com cobertura de palha decarnaúba; plantio sem cobertura; plantio intercalado com feijão caupi)]. O sistema de cultivo com palha de carnaúba,independentemente do genótipo de milho e do local de avaliação, proporcionou os maiores rendimentos de grãos.Em Chapadinha, os genótipos mais produtivos foram as variedades de polinização aberta Caiano e Al-Bandeirante,o híbrido duplo AGN 1051, os híbridos triplos 2B 433, BRS 3060 e CMS 3E482 e o híbrido simples P 3646 H. ParaBrejo, os melhores resultados foram obtidos pelos híbridos duplos 2B 707 HX e AGN 1051 e pelos híbridos simples2B 604 HX, 30 F35 H e P 3646 H.Palavras-chave: Zea mays L., Palhada, Rendimento de grãos.PRODUCTIVE PERFORMANCE OF MAIZE CULTIVARS IN THREE FARMING SYSTEMS IN EAST MARANHÃO STATEABSTRACT - East Maranhão State is the newest agricultural frontier in Brazil. However, productivity limiting factorssuch as the correct choice of variety and the cropping system more suitable to the local conditions are still unknown.The objective of this study was to evaluate the productive performance of 17 maize genotypes under three cultivationsystems for the region. Two experiments were carried out, one in the city of Chapadinha and another in the city ofBrejo, evaluating 17 genotypes. The trials were arranged in a randomized block design with 4 replications in a 3x10factorial scheme [10 cultivars and 3 cultivation systems (planting with cover of carnaúba straw, plantation withoutcover, intercropping with cowpea). The use of carnaúba straw provided the highest grain yields, regardless the maizegenotype and the evaluation site,. In Chapadinha the most productive genotypes were the open-pollinated varietiesCaiano and Al-Bandeirante, the double hybrid AGN 1051, the triple hybrids 2B 433, BRS 3060 and CMS 3E482 andthe simple hybrid P 3646 H. For Brejo the best results were obtained by the double hybrids 2B 707 HX and AGN 1051and by the simple hybrids 2B 604 HX, 30 F35 H and P 3646 H.Keywords: Zea mays L., Straw, Grain Yield.

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EFICIÊNCIA DE BIOESTIMULANTES E FUNGICIDA NOS CARACTERES AGRONÔMICOS E ECONÔMICOS NA CULTURA DO MILHO VERDE

Revista Brasileira de Milho e Sorgo ◽

10.18512/1980-6477/rbms.v17n2p274-286 ◽

2018 ◽

Vol 17 (2) ◽

pp. 274

Author(s):

RICARDO FRANCISCHINI ◽

ALESSANDRO GUERRA DA SILVA ◽

DAURI JOSÉ TESSMANN

Keyword(s):

Zea Mays ◽

Chlorophyll Content ◽

Plant Height ◽

Zea Mays L ◽

Block Design ◽

Stem Diameter ◽

Production Costs ◽

Net Income ◽

Randomized Block Design ◽

Presence And Absence

RESUMO - O objetivo do trabalho foi avaliar o desempenho agronômico e econômico na cultura do milho verde submetida ao uso de bioestimulantes na presença e ausência de fungicida. Dessa forma, dois experimentos foram conduzidos em anos distintos, em delineamento experimental de blocos ao acaso com três repetições, em arranjo fatorial 4x2. O primeiro fator correspondeu à combinação de bioestimulantes (Ausência, MC Cream, MC Extra, MC Cream+MC Extra) e o segundo fator à presença e ausência de fungicida (piraclostrobina + epoxiconazole). Foi avaliado o peso de espigas verdes, a altura de plantas, diâmetro de colmo, teor de clorofila e severidade de doenças, além da viabilidade econômica dos tratamentos. Os Bioestimulantes, na ausência de fungicida, foram eficientes para aumentar o peso das espigas verdes, altura de plantas, e o teor de clorofila. Na presença do fungicida os bioestimulantes aumentaram o diâmetro de colmo e reduziram a severidade de doenças. Os investimentos em insumos elevaram os custos de produção, porém a rentabilidade foi compensada pelo aumento da renda bruta. Em situação de baixa disponibilidade hídrica, o bioestimulante MC Extra foi o mais viável economicamente para a cultura do milho verde.Palavras-chave: fitossanidade, produtividade, renda líquida, Zea mays L. EFFICIENCY OF BIOSTIMULANTS AND FUNGICIDE IN THE AGRONOMIC AND ECONOMIC CHARACTERS OF GREEN CORN ABSTRACT – The objective of this work was to evaluate the agronomic and economic performance of the green corn crop, subjected to the use of biostimulants in the presence and absence of fungicide. Two experiments were conducted in different years using a randomized block design with three replications, in a 4x2 factorial arrangement. The first factor corresponded to the combination of biostimulants (Absence, MC Cream, MC Extra, MC Cream + MC Extra) and the second factor was the presence and absence of fungicide (pyraclostrobin + epoxiconazole). Green ear weight, plant height, stem diameter, chlorophyll content and severity of diseases were evaluated, as well as the economic viability of the treatments.In the absence of fungicide, biostimulants were efficient to increase the green ear weight, plant height, and chlorophyll content. In the presence of the fungicide, biostimulants increased stem diameter and reduced disease severity. Investments in inputs increased production costs, but profitability was offset by the increase in gross income. In a situation of low water availability, the biostimulant MC Extra was the most economically viable for the green maize crop.Keywords: plant health, productivity, net income, Zea mays L.

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Karakteristik Fenotipik dan Pengelompokan Jagung Pulut Hibrida Zea mays L. Hasil Persilangan Puncak

Jurnal Ilmu Alam dan Lingkungan ◽

10.20956/jal.v10i1.6624 ◽

2019 ◽

Vol 10 (1) ◽

Author(s):

Juhriah Juhriah ◽

Muhammad Azrai ◽

Elis Tambaru ◽

Jum Eka Rahayu

Keyword(s):

Zea Mays ◽

Zea Mays L ◽

Block Design ◽

Experimental Plant ◽

Phenotypic Characteristics ◽

Phenotypic Characters ◽

South Sulawesi ◽

Randomized Block Design ◽

Qualitative Characters ◽

Waxy Corn

This research is the phenotypic characteristics and grouping of hybrid waxy corn Zea mays L. product of the top cross had been carried out in the experimental plant Indonesian Cereals Research Institute (ICERI) in Maros South Sulawesi. This research aims to determine the phenotypic characters of the hybrid of waxy corn Zea mays L. product of the top cross and grouping based on its phenotypic characteristics. This research used a randomized block design (RBD) with 17 th treatments (corn strains) and three replications. Waxy corn strains used were: URI 1 (G8), G8G1, G8G2, G8G3, G8G4, G8G5, G8G6, G8G7, Soppeng (G10), G10G1, G10G2, G10G3, G10G4, G10G5, G10G6, G10G7, and Paramitha.. All data (qualitative and quantitative) are arranged in binary tables and grouped using the NTSYST program. The observations show that the data obtained comes from 14 quantitative characters and 17 qualitative characters. Quantitative data from 14 characters were tested and the results of 10 characters were significantly different and the other 4 were not significantly different. The grouping results show that the 17 corn strains studied formed 3 groups at the similarity coefficient of 0.76. Soppeng's corn is different from the others.

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Pengaruh Jenis Mikoriza dan Jumlah Populasi Tanaman Terhadap Pertumbuhan dan Hasil Jagung Manis (Zea mays L.)

Jurnal Ilmiah Mahasiswa Pertanian ◽

10.17969/jimfp.v4i1.10341 ◽

2020 ◽

Vol 4 (1) ◽

pp. 91-99

Author(s):

Multazam Palepi ◽

Jumini Jumini ◽

Syaffrudin Syaffrudin ◽

Syaffrudin Syaffrudin

Keyword(s):

Zea Mays ◽

Glomus Mosseae ◽

Zea Mays L ◽

Sweet Corn ◽

Block Design ◽

Growth And Yield ◽

Potential Yield ◽

Randomized Block Design ◽

Physiology Laboratory

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh jenis mikoriza dan populasi tanaman terhadap pertumbuhan dan hasil jagung manis, serta interaksi antara jenis mikoriza dengan populasi tanaman terhadap pertumbuhan dan hasil jagung manis. Penelitian ini dilaksanakan pada bulan November 2017 sampai Januari 2018 di Desa Blang Krueng, Kecamatan Baitussalam, Kabupaten Aceh Besar. Rancangan Penelitian yang digunakan adalah Rancangan Acak Kelompok (RAK) pola faktorial 3 x 2 dengan 3 ulangan. Faktor yang diteliti yaitu jenis mikoriza dan populasi tanaman. Faktor jenis mikoirza terdiri dari 3 taraf yaitu ; mikoriza glomus mosseae, gigaspora dan campuran. Faktor populasi tanman terdiri atas 2 taraf yaitu : satu benih dan dua benih. Hasil penelitian menunjukkan penggunaan jenis mikoriza campuran secara umum menghasilkan pertumbuhan dan hasil tanaman jagung yang lebih baik. Sedangkan populasi tamanan yang terbaik adalah satu tamanan. Selanjutnya Interaksi yang lebih baik terdapat pada jenis mikoriza campuran dengan populasi tamanan pada parameter diameter batang 15 HST dan 30 HST, berat basah akar dan berat buah berkelobot, diameter tongkol,berat buah tampa kelobot dan potensi hasil per hektar. The effect of Mycoriza Types and Number of Crop Populations on Growth and Yield of Sweet CornAbstractThis research purposes to know the effect of mycoriza types and the population of the plants toward the growth and yield of sweet corn and the interaction between mycoriza types and the population of the plants to the growth and yield of sweet corn. This research was carried out in November 2017 until Januari 2018 at Blang Krueng village, Baitussalam sub-district, Aceh Besar Regency and Physiology Laboratory, faculty of Agriculture, Syiah Kuala University. This research was conducted Randomized Block Design factorial pattern 3 x 2 with 3 replications. The factors studied in this research are mycoriza types and the population of the plants. 3 types of mycoriza types are glomus mosseae mycoriza, gigaspora and the mixture of glomus mosseae and gigaspora. and 2 types of the population of the plants are using one seed and two seed. The result of this research pointed out that the using of the mixture mycoriza type generally increased the growth and yield of sweet corn. Whereas, the using of the population of the plants with one seed had showed the best result. And the better interaction is obtained in the mixture mycoriza with the population of the plants in there after a good interaction is present in mixed mycorrhizae species with plan population on the diameter of tehstem 15 HST and 30 HST, the weight of the root base and the weight of the weighted fruit, the diameter of the cob weight of the without any weight fruit and the potential yield per hactare.

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Uji Daya Hasil S5 Jagung (Zea mays L.) Hibrida

Jurnal Ilmiah Mahasiswa Pertanian ◽

10.17969/jimfp.v5i2.14868 ◽

2020 ◽

Vol 5 (2) ◽

pp. 31-40

Author(s):

Nur Roslini ◽

Bakhtiar Bakhtiar ◽

Siti Hafsah

Keyword(s):

Zea Mays ◽

Zea Mays L ◽

Block Design ◽

High Yield ◽

Field Station ◽

Randomized Block Design ◽

Yield Trial ◽

High Yields ◽

Hybrid Maize

Abstrak. Penelitian ini bertujuan untuk menyeleksi tanaman jagung berdaya hasil tinggi. Penelitian ini dilaksanakan di PT Syngenta Seed Indonesia Kediri Field Station dusun Sukodono desa Kedungmalang kecamatan Papar kabupaten Kediri, Jawa Timur yang berlangsung pada Mei sampai Oktober 2019. Rancangan yang digunakan dalam penelitian ini adalah Rancangan Acak Kelompok (RAK) non faktorial dengan 24 genotipe uji, 4 genotipe pembanding (untuk uji daya hasil) dengan 2 ulangan. Pada uji daya hasil diperoleh 7 genotipe yaitu 18ID010144, 18ID010123, 18ID006020, 18ID010135, 18ID010125, 18ID007419 dan 18ID010148 yang memiliki daya hasil tinggi diatas genotipe pembanding daya hasil tertinggi. 24 genotipe uji yaitu 18ID010125 memiliki daya hasil 14,12 ton ha-1 genotipe 18ID010123 memiliki daya hasil tertinggi 15,28 ton ha-1 dan genotipe 18ID010148 memiliki daya hasil 13,91 ton ha-1. Yield Trial Screening on S5 Hybrid Maize (Zea mays L.)Abstract. This research aims to select maize are high yield. This research was conducted at PT Syngenta Seed Indonesia Kediri Field Station Sukodono in Sukodono sub-village, Kedungmalang village, Papar district, Kediri district, East Java, which took place from May to October 2019. The design used in this research was Non Factorial Randomized Block Design (RBD) with 24 test genotypes, 4 comparative genotypes (for yield trial) with 2 replications. The results showed that In yield trial was obtained 7 genotypes (18ID010144, 18ID010123, 18ID006020, 18ID010135, 18ID010125, 18ID007419 dan 18ID010148) which have high yields above the highest comparative yield genotypes. There were 3 genotypes selected from 24 test genotypes consist 18ID010125 has yield 14,12 tons ha-1,genotype 18ID010123 has the highest yield 15,28 tons ha-1 and genotype 18ID010148 has yield 13,91 tons ha-1.

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