scholarly journals AGRONOMIC CHARACTERISTICS OF CORN GROWN IN DIFFERENT POPULATION ARRANGEMENTS

Nativa ◽  
2018 ◽  
Vol 6 (6) ◽  
pp. 569
Author(s):  
Marcos Felipe de Brito Ventura ◽  
Flávio Carlos Dalchiavon
Keyword(s):  
Zea Mays ◽  
Regression Analysis ◽  
Dry Mass ◽  
Plant Population ◽  
Row Spacing ◽  
Agronomic Performance ◽  
Corn Plant ◽  
Mato Grosso ◽  
Reproductive Characteristics ◽  
Lower Variation

CARACTERÍSTICAS AGRONÔMICAS DE MILHO CULTIVADO EM DIFERENTES ARRANJOS POPULACIONAIS Objetivou-se determinar a resposta de diferentes arranjos populacionais sobre o desempenho agronômico do milho. O experimento foi realizado no Instituto Federal de Educação, Ciência e Tecnologia de Mato Grosso (IFMT),Campo Novo do Parecis O delineamento experimental foi o de blocos casualizados, em esquema fatorial 5 x 2, sendo cinco populações do híbrido simples DKB 390 VT PRO3 (50.000; 60.000; 70.000; 80.000 e 90.000 plantas ha-1) e dois espaçamentos entre linhas (0,45 e 0,90 m), com quatro repetições. Foram avaliadas características vegetativas e reprodutivas do milho. Os dados obtidos foram submetidos à análise de variância e análise de regressão. O aumento na população de plantas do milho incrementa a massa verde e a massa seca ao mesmo tempo em que reduz a massa de mil grãos (80.000 plantas ha-1), comprimento e diâmetro de espigas e número de fileiras por espiga de milho. O reduzido espaçamento entre linhas (0,45 m) e a população de 50.000 plantas ha-1 apresentaram os melhores resultados para as características reprodutivas, com menor variação de comportamento entre as populações avaliadas.Palavras-chave: desempenho agronômico, espaçamento entre plantas, população de plantas, Zea mays. ABSTRACT: The objective of this study was to determine the response of different population arrangements on the agronomic performance of corn. The experiment was carried out in Instituto Federal de Educação, Ciência e Tecnologia de Mato Grosso (IFMT), Campo Novo do Parecis. The experimental design was a complete randomized block in a 5 x 2 factorial scheme, with five populations of single hybrid DKB 390 VT PRO3 (50,000, 60,000, 70,000, 80,000 and 90,000 plants ha-1) and two row spacings (0.45 and 0.90 m) with four replications. The experiment evaluated the vegetative and reproductive characteristics of corn. Data were submitted to analysis of variance and regression analysis. The raise in corn plant population increases the fresh mass and the dry mass while reducing the mass of a thousand grains (80,000 plants ha-1), length and diameter of the ears and number of rows per corn ear. The reduced row spacing (0.45 m) and the population of 50,000 ha-1 plants presented the best results for reproductive characteristics, with lower variation in behavior among the populations evaluated in the experiment.Keywords: agronomic performance, plant population, spacing between plants, Zea mays.

scholarly journals Plant population and row spacing effects on corn: Plant growth, phenology, and grain yield

2020 ◽  
Vol 112 (4) ◽  
pp. 2456-2465 ◽  
Author(s):  
Brad J. Bernhard ◽  
Frederick E. Below
Keyword(s):  
Plant Growth ◽  
Grain Yield ◽  
Plant Population ◽  
Row Spacing ◽  
Corn Plant ◽  
Spacing Effects

DESEMPENHO PRODUTIVO DO MILHO HÍBRIDO SIMPLES EM FUNÇÃO DE ESPAÇAMENTOS ENTRE FILEIRAS E POPULAÇÕES DE PLANTAS

2017 ◽  
Vol 16 (3) ◽  
pp. 426
Author(s):  
MAURICIO FUMAGALLI ◽  
IVAN VILELA ANDRADE FIORINI ◽  
ROGERIO ALESSANDRO FARIA MACHADO ◽  
HELCIO DUARTE PEREIRA ◽  
CASSIANO SPAZIANI PEREIRA ◽  
...  
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Northern Region ◽  
Space Distribution ◽  
Row Spacing ◽  
Conventional System ◽  
Thousand Grain Weight ◽  
Plant Populations ◽  
Mato Grosso ◽  
Hybrid Maize

 RESUMO - O objetivo desta pesquisa foi avaliar o desempenho produtivo do milho submetido a diferentes espaçamentos entre fileiras e populações de plantas, nas condições da segunda safra de 2010, em Ipiranga do Norte, na região norte de Mato Grosso. O experimento foi implantado no dia 26 de janeiro, com o híbrido simples Pioneer 30S31, em sistema convencional de preparo do solo após a colheita da soja precoce. O delineamento experimental utilizado foi em blocos casualizados em esquema de parcelas subdivididas com quatro repetições. Os tratamentos foram representados por três espaçamentos entre fileiras de 0,5; 0,7 e 0,9 m nas parcelas principais e quatro populações de 50.000, 60.000, 70.000 e 80.000 plantas ha-1 nas subparcelas. Todos os parâmetros avaliados foram influenciados pelas populações de plantas. Os espaçamentos entre fileiras influenciaram o número de fileiras de grãos, a massa de mil grãos e a produtividade de grãos do milho. Ocorreu interação significativa entre os fatores de estudo para todos os componentes de produção, exceto quanto ao comprimento de espigas. O aumento das populações até 80.000 plantas ha-1, associado à redução do espaçamento entre fileiras, resultou na combinação mais eficiente com maior produtividade de grãos. Com o aumento do espaçamento entre fileiras, a população ótima ficou abaixo de 70.000 plantas ha-1 nos espaçamentos de 0,7 e 0,9 m entre fileiras.Palavras-chave: Arranjo de plantas, densidade de plantas, distribuição espacial, Zea mays L. MAIZE PRODUCTIVY PERFORMANCE OF SIMPLE HYBRID IN FUNCTION OF THEROW SPACING AND PLANT POPULATIONS  ABSTRACT - The objective of this study was to evaluate the maize productivy performance under different row spacing and plant populations, in conditions of off-season, crop year 2010, in Ipiranga do Norte, in the northern region of the State of Mato Grosso, Brazil. The experiment was implanted on 26 January, with a simple hybrid maize Pioneer 30S31, in a conventional system, after soybean crop. The experimental design was randomized blocks in split plots with four replications. The treatments were three row spacing between rows of 0.5, 0.7 and 0.9 m in main plots and four populations of 50.000, 60.000, 70.000 and 80.000 plants ha-1 in subplots. Plant populations influenced all parameters. The spacing between rows influenced the number of rows of grain, the thousand-grain weight and yield grains. The interaction was significative between row spacing and plant populations for all parameters, except for ear length. The increase in populations to 80.000 plants ha-1, associated with a reduced spacing between rows, proved to be the most effective resulting in highest grains yield. With increasing spacing between rows, the optimum population was below 70.000 plants ha-1 in the row spacing’s of 0.7 and 0.9 m between lines. Keywords: Plant arrangement, plants density, space distribution, Zea mays L. 

scholarly journals Corn ( Zea mays L.) response to row spacing and plant population in the Mid‐South U.S

2021 ◽  
Author(s):  
Joey Williams ◽  
Darrin M. Dodds ◽  
Normie W. Buehring ◽  
Jagmandeep Dhillon ◽  
Brien Henry
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Plant Population ◽  
Row Spacing

scholarly journals Agronomic Performance of Sunflower Hybrids in the Mid-Northern Region of Mato Grosso, Brazil

2020 ◽  
Vol 12 (6) ◽  
pp. 182
Author(s):  
Flávio Carlos Dalchiavon ◽  
Welington Junior Cândido da Silva ◽  
Rosivaldo Hiolanda ◽  
Felipe Rottoli Vicari ◽  
Claudio Guilherme Portela de Carvalho
Keyword(s):  
Agronomic Traits ◽  
Animal Feed ◽  
Dry Mass ◽  
Northern Region ◽  
Agronomic Performance ◽  
Mato Grosso ◽  
Climate Conditions ◽  
Industrial Sectors ◽  
Grain Productivity ◽  
Helianthus Annus

Helianthus annus L. belongs to the family Asteraceae, with a yearly cycle and high adaptability rate to different climate conditions. Its culture was boosted by the production of animal feed, oil extraction for humans or for biodiesel, ornamentation and bird feed. The agronomic performance of sunflower genotypes in the Mid-Northern region of the State of Mato Grosso, Brazil, was assessed. Data for the production and industrial sectors will be thus provided for the selection of genotypes with the best agronomic traits when cultivated in the region. Current study was performed at the Instituto Federal de Educação, Ciência e Tecnologia de Mato Grosso, on the Campus Campo Novo do Parecis MT Brazil, during 2018. Eight genotypes were evaluated in assays with randomized blocks and four replications. Evaluated traits comprised days for initial florescence, plant height, stalk diameter, green and dry mass, days for physiological maturity, mean diameter of the head, mass of head and achenes per head, both necessary to obtain achene:head ratio, mass of one thousand achenes, number of achenes per head and productivity of achenes of the oil. Genotypes with high grain yield tended towards greater size and cycle. Genotypes SYN 045, BRS 323 and MULTISSOL had good grain productivity plus good production of green and dry mass. The first two genotypes had an oil rate above 40%, with good oil productivity.

PENGARUH POPULASI TANAMAN DAN PENGGUNAAN MULSA TERHADAP POPULASI GULMA DAN HASIL PUCIL JAGUNG MANIS (ZEA MAYS SACCHARATA STURT) DI LAHAN KERING

AGRICA ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 124-133
Author(s):  
I Ketut Arsa Wijaya
Keyword(s):  
Zea Mays ◽  
Block Design ◽  
Plant Population ◽  
Cyperus Rotundus ◽  
Corn Kernel ◽  
Plastic Mulch ◽  
Rice Plants ◽  
Straw Mulch ◽  
Combination Treatments ◽  
Randomized Block Design

This study was conducted in Balai Benih Induk (BBI) Luwus, Baturiti District, Tabanan Regency, with the high of place 506m above sea level occurring in March to May 2014. This research used randomized block design arranged per factor, namely population of plants (P) including three steps: P1=80.000 plants per hectare, P2= 100.00 plants per hectare, P3= 120.000 per hectare; and mulch (M) that include: M0= without mulch and without cleaning, M1= without mulch with clean weeding, M2= rice plants straw mulch (5 ton per hectare) and M3= black silver plastic mulch. Eventually, there were 12 combination treatments, each of which was repeated 3 times to obtain 36 land slots. The research indicates that there was no real interaction between the treatment of plant population and mulch usage in all variables observed. The 100.000 plant population per hectare can produce the weight of dry and fresh oven corn kernel without highest cornhusk that was to say 4.79 tons and 0.53 tons or 11.66 % and 20.45% higher compared to 120.000 plant population per hectare. The use of black silver plastic and rice plants straw mulch can produce the weight of fresh and dry oven corn kernel without cornhusk per hectare each of which is 4.69 tons, 4.57 tons, and 0.54 tons, 0.47 tons or 26.76%, 38.46 %, and 23.51 %, 20.51 % higher than without mulch and without clean weeding. Clean weeding treatment can produce the weight of fresh and dry oven corn kernel without cornhusk per hectare with its weight of 4.63 tons and 0.51 tons or 25.35 % and 35.90 % higher than without mulch and cleaning. Clean weeding treatment was not obviously different from mulch treatment. The identification of weed types were 19 kinds of weeds and Cyperus rotundus L. Weeds. They have the highest density and each absolute frequent of 1249.333 stems m-2 and 1.00.

HERBICIDES FOR FORAGE CORN NO-TILL SEEDED INTO CEREAL STUBBLE

1983 ◽  
Vol 63 (1) ◽  
pp. 235-241 ◽  
Author(s):  
J. A. IVANY ◽  
J. R. ENMAN
Keyword(s):  
Zea Mays ◽  
Weed Control ◽  
Prince Edward Island ◽  
Zea Mays L ◽  
Crop Yields ◽  
Taraxacum Officinale ◽  
Plant Population ◽  
No Till ◽  
Herbicide Treatment ◽  
Forage Yields

Forage corn (Zea mays L.) was grown successfully in Prince Edward Island by no-till planting the corn into standing cereal stubble 15–20 cm tall using a Buffalo no-till seeder. Planting with the slot-type shoe in a preliminary experiment in 1978 gave better forage yields than planting with a slice-type shoe mainly because of better plant population achieved. Subsequent experiments in 1979–1981 using the slot-type shoe to no-till plant corn in cereal stubble gave good forage yields when adequate weed control was provided with herbicide treatment. Best control of quackgrass (Agropyron repens L. Beauv.) and dandelion (Taraxacum officinale Weber) and crop yields was achieved with glyphosate + atrazine (1.5 + 2.5 kg a.i./ha) or amitrole + atrazine (3.4 + 2.5 kg a.i./ha) applied preemergence after seeding corn and before corn emergence. Control of quack grass and dandelion with glyphosate or amitrole used alone ranged from 71–80%, but paraquat alone did not provide any weed control. Addition of atrazine to paraquat, glyphosate, or amitrole gave improved control of quackgrass and dandelion and higher forage corn yields. Addition of 2.5 kg a.i./ha atrazine gave better results than use of 1.0 kg a.i./ha of atrazine.Key words: Forage corn, no-till seeding, glyphosate, atrazine, aminotriazole, paraquat

Spiroplasma kunkelii. [Distribution map].

2008 ◽  
Author(s):  
Keyword(s):  
Zea Mays ◽  
North America ◽  
South America ◽  
Central America ◽  
Geographical Distribution ◽  
Distribution Map ◽  
Mato Grosso ◽  
Spiroplasma Kunkelii ◽  
Mato Grosso Do Sul ◽  
New Distribution

Abstract A new distribution map is provided for Spiroplasma kunkelii Whitcomb, Chen et al. Bacteria. Hosts: maize (Zea mays), sweetcorn (Zea mays subsp. mays), teosinte (Zea mexicana) and perennial teosinte (Zea perennis). Information is given on the geographical distribution in North America (Mexico, USA, California, Florida, Louisiana, Michigan, Mississippi, Ohio, Texas), Central America and Caribbean (Belize, El Salvador, Guatemala, Honduras, Jamaica, Nicaragua, Panama), South America (Argentina, Bolivia, Brazil, Mato Grosso do Sul, Minas Gerais, Colombia, Paraguay, Peru, Venezuela).

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