Molybdenum dosage and application timing in sweet corn

Nowadays, there is a greater offer of sweet corn hybrids with a high productive potential, shorter cycle and more intense metabolism than common corn, resulting in this crop being very demanding in terms of nutrients. The present study aimed to evaluate the effect of three levels of molybdenum (Mo) (150, 300 and 450 g ha-1), via foliar spraying, with different application timing (E1: 100% at 15 days after emergence - DDE; E2: 100% at 30 DDE; E3: 100% at 45 DDE; E4: 50% at 15 and 30 DDE, and E5: 33.3% at 15, 30 and 45 DDE) on the agronomic performance of sweet corn ‘SVN 9298’. There was a significant effect from the interaction of the factors on the foliar concentration of Mo, obtaining the highest value with 450 g ha-1 of Mo, applied at 45 DDE, with an increase of 1.2% in the foliar content from that observed in the plants without a Mo application. Also, the foliar concentration of nitrogen (N) was higher with the highest Mo level. The highest number of commercial ears (49,583), total productivity of ears (20,942 kg ha-1) and productivity of commercial ears (13,211 kg ha-1) were obtained with estimated levels of 316, 450 and 311 g ha-1 of Mo, respectively. Likewise, the dose that maximized grain productivity (5,055 kg ha-1), which is the most important component that defines the agronomic performance of sweet corn, was the estimated dose of 334 g ha-1 of Mo.

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Agronomic performance of experimental super sweet corn hybrids

Horticultura Brasileira ◽

10.1590/s0102-0536-20210211 ◽

2021 ◽

Vol 39 (2) ◽

pp. 199-204

Author(s):

Emanuel Gava ◽

Marcos V Faria ◽

Welton L Zaluski ◽

Jocimar C Rosa ◽

Elida AP Paiva ◽

...

Keyword(s):

Sweet Corn ◽

Starch Content ◽

Soluble Solids ◽

Sugar Accumulation ◽

Agronomic Performance ◽

Southern Brazil ◽

Corn Hybrids ◽

Sowing Season ◽

Corn Inbred ◽

Partial Diallel

ABSTRACT Super sweet is classified as a special type of corn, due to the presence of genes which promote sugar accumulation in grains, significantly reducing starch content in the endosperm. This study aimed to evaluate the agronomic performance of experimental super sweet corn hybrids, carrying the gene shrunken-2, in order to identify and select promising genotypes for Southern Brazil. The experiments were carried out in two sowing seasons in 2017/18, in the experimental field of UNICENTRO, Guarapuava-PR, Brazil. Thirty-two experimental hybrids resulting from an 8x4 partial diallel among super sweet corn inbred lines from four distinct populations were evaluated along with two commercial hybrids (BRS Vivi and Tropical Plus) used as checks. Traits of agronomic and commercial interest were evaluated: male flowering (MF), husk covering index (HCI), yield of husked ears (YHE), grain yield (GY), commercial prolificacy (CPR), percentage of commercial ears (PCE), color (COL) and soluble solids (SS) of the grains. We verified significant differences among the experimental hybrids, except for COL. There was no significant effect of sowing season regarding to SS. Genotypes x seasons interaction was significant for YHE, GY, CPR, PCE and COL. There are promising experimental hybrids showing performances superior to commercial super sweet corn hybrids used in Brazil. The experimental hybrids D2-61 x D5-41 and D3-10 x D5-43 were superior to the other experimental genotypes. The experimental hybrid D2-61 x D5-41 shows potential to meet the demands of the current super sweet corn market.

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Agronomic performance of super-sweet corn genotypes in the north of Rio de Janeiro

Cropp Breeding and Applied Biotechnology ◽

10.1590/s1984-70332014000100002 ◽

2014 ◽

Vol 14 (1) ◽

pp. 8-14 ◽

Cited By ~ 9

Author(s):

Pedro Henrique Araújo Diniz Santos ◽

Messias Gonzaga Pereira ◽

Roberto dos Santos Trindade ◽

Keila Silva da Cunha ◽

Geovana Cremonini Entringer ◽

...

Keyword(s):

Rio De Janeiro ◽

Sweet Corn ◽

Northern Region ◽

Agronomic Performance ◽

Corn Hybrids ◽

Breeding Lines ◽

The North ◽

Field Corn ◽

Genetic Value ◽

Single Cross Hybrids

We investigated the agronomic performance of super-sweet corn genotypes. Super-sweet corn genotypes were backcrossed with regionally adapted field varieties (CIMMYT 8 and Piranão 8). Eight morphological and yield-related traits were evaluated. A significant effect of interaction was observed between the five groups of genotypes (donor parents; super-sweet backcrossed parents; super-sweet intervarietal hybrids; common intervarietal corn hybrids; and field corn populations). Despite the low yield of genotype SH2Piranão, the hybrids resulting from interbreeding of the backcrossed parents for the improvement of super-sweet corn were promising. The agronomic performance of the super-sweet parents and their hybrids indicates the possibility of breeding lines with high genetic value to obtain single-cross hybrids and cultivars of super-sweet corn adapted to the northern region of the State of Rio de Janeiro.

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Identification of Field Corn Inbreds Adapted to Europe to Improve Agronomic Performance of Sweet Corn Hybrids

Crop Science ◽

10.2135/cropsci1997.0011183x003700040017x ◽

1997 ◽

Vol 37 (4) ◽

pp. 1134-1141 ◽

Cited By ~ 7

Author(s):

R. A. Malvar ◽

M. E. Cartea ◽

P. Revilla ◽

A. Ordás

Keyword(s):

Sweet Corn ◽

Agronomic Performance ◽

Corn Hybrids ◽

Field Corn

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Agronomic performance of canola hybrids cultivated in a low altitude region in Southern Brazil

Scientia Agraria Paranaensis ◽

10.18188/sap.v19i2.23818 ◽

2020 ◽

Vol 19 (2) ◽

pp. 117-123

Author(s):

Fabiano Colet ◽

Diego Nicolau Follmann ◽

Astor Henrique Nied ◽

Alessandro Dal'Col Lúcio ◽

Thomas Newton Martin

Keyword(s):

Central Region ◽

Block Design ◽

Rio Grande ◽

Agronomic Performance ◽

Rio Grande Do Sul ◽

Randomized Block Design ◽

Grain Productivity ◽

Productive Potential ◽

Low Altitude ◽

Santa Maria

The area occupied by crops has expanded in recent years in the central region of Rio Grande do Sul, Brazil and the search for alternative winter crops to integrate the productive system is relevant given the idleness of the areas at this time and the lower risk of frost losses that occur in most grain-producing regions. In this sense, the objective of this research was to evaluate the agronomic performance of eight canola hybrids (Hyola 61, Hyola 50, Hyola 433, Hyola 571CL, Hyola 575CL, Diamond, ALHT B4, and ALHT M6), cultivated in low altitude areas, in the Central region of Rio Grande do Sul (RS). The experiment was conducted in 2017, in Santa Maria, RS, using a randomized block design with four replicates. Canola hybrids show variability regarding the morphological components and grain production. The environmental condition and low altitude of the region of Santa Maria do not compromise the productive potential of the canola crop, obtaining grain productivity superior to the state and national averages. Therefore, canola crop can be inserted in the central region of Rio Grande do Sul if adequate agronomic management is performed. The cultivars Hyola 50, Hyola 571CL, Hyola 433, Hyola 575CL, Diamond, and Hyola 61 present the highest grain productivity.

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Productivity of corn hybrids of different fao groups depending on microfertilizers and growth stimulants under irrigation in the south of Ukraine

Agricultural science and practice ◽

10.15407/agrisp3.01.055 ◽

2016 ◽

Vol 3 (1) ◽

pp. 55-60

Author(s):

Yu. Lavrynenko ◽

R. Vozhegova ◽

O. Hozh

Keyword(s):

Grain Quality ◽

Laboratory Method ◽

The South ◽

Corn Hybrids ◽

Early Maturity ◽

Effi Ciency ◽

Grain Moisture ◽

Grain Productivity ◽

The Impact

The purpose of the research is to identify effi cient microfertilizers and growth stimulants considering biologi- cal features of new corn hybrids of different FAO groups under irrigation conditions in the South of Ukraine and trace their impact on grain productivity of the plants. The methods of the research are the fi eld method – to study the interaction of the research object with experimental factors of the natural environment, to register the yield and evaluate the biometrical indices; the laboratory method – to measure soil moisture, grain moisture content and grain quality indices; the statistical method – to evaluate the reliability of the obtained results; the calculation methods – for economic and energetic assessment of the growing techniques used. The results of the research. The paper defi nes the impact of microfertilizers and growth stimulants on the yield and grain quality of the corn hybrids of different maturity groups and on the economic effi ciency of growing them. The conclusions of the research. Under irrigation conditions of the Southern Steppe of Ukraine it is recommended that the following hybrids should be grown in dark-chestnut soils: early maturity DN Pyvykha, medium-early Skadovskyi, medium maturity Kakhovskyi and medium-late Arabat, using the growth stimulants – treating the seeds with Sezam-Nano and fertilizing with Grainactive at the stage of 7–8 leaves.

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Alternatives to Atrazine for Weed Management in Processing Sweet Corn

Weed Science ◽

10.1614/ws-d-16-00001.1 ◽

2016 ◽

Vol 64 (3) ◽

pp. 531-539 ◽

Cited By ~ 3

Author(s):

Zubeyde Filiz Arslan ◽

Martin M. Williams ◽

Roger Becker ◽

Vincent A. Fritz ◽

R. Ed Peachey ◽

...

Keyword(s):

Weed Control ◽

Weed Management ◽

Sweet Corn ◽

Crop Yields ◽

Production Systems ◽

Field Trials ◽

Management Systems ◽

Weed Species ◽

Application Timing ◽

Production Areas

Atrazine has been the most widely used herbicide in North American processing sweet corn for decades; however, increased restrictions in recent years have reduced or eliminated atrazine use in certain production areas. The objective of this study was to identify the best stakeholder-derived weed management alternatives to atrazine in processing sweet corn. In field trials throughout the major production areas of processing sweet corn, including three states over 4 yr, 12 atrazine-free weed management treatments were compared to three standard atrazine-containing treatments and a weed-free check. Treatments varied with respect to herbicide mode of action, herbicide application timing, and interrow cultivation. All treatments included a PRE application of dimethenamid. No single weed species occurred across all sites; however, weeds observed in two or more sites included common lambsquarters, giant ragweed, morningglory species, velvetleaf, and wild-proso millet. Standard treatments containing both atrazine and mesotrione POST provided the most efficacious weed control among treatments and resulted in crop yields comparable to the weed-free check, thus demonstrating the value of atrazine in sweet corn production systems. Timely interrow cultivation in atrazine-free treatments did not consistently improve weed control. Only two atrazine-free treatments consistently resulted in weed control and crop yield comparable to standard treatments with atrazine POST: treatments with tembotrione POST either with or without interrow cultivation. Additional atrazine-free treatments with topramezone applied POST worked well in Oregon where small-seeded weed species were prevalent. This work demonstrates that certain atrazine-free weed management systems, based on input from the sweet corn growers and processors who would adopt this technology, are comparable in performance to standard atrazine-containing weed management systems.

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Evaluation of Efficacy of Selected Conventional and Experimental Insecticides and Bt Hybrids for Control of Corn Earworm and European Corn Borer on Sweet Corn, 1997

Arthropod Management Tests ◽

10.1093/amt/23.1.99a ◽

1998 ◽

Vol 23 (1) ◽

pp. 99-100

Author(s):

J. T. Shaw ◽

R. Weinzierl ◽

J. W. Finger

Keyword(s):

European Corn Borer ◽

Sweet Corn ◽

Corn Earworm ◽

Compressed Air ◽

Hollow Cone ◽

Corn Hybrids ◽

Corn Borer ◽

Chemical Treatments ◽

Untreated Check ◽

High Clearance

Abstract The tests were arranged in a RCB design with four replications. Each plot consisted of four rows, each being 30 inches wide and 50 ft long. Thirty-foot-wide alleys were established between the four replications. Insecticides were applied to the middle two rows of each plot, leaving two untreated rows between adjoining plots. Twelve insecticide treatments were compared with two Br-sweet corn hybrids (Heritage Bt and Bonus Bt) and their non-Bt isolines to two untreated controls. The 12 chemical treatments and the two untreated checks were planted with the Silver King variety sweet corn. Two untreated check plots were included in each replication and were averaged for the ANOVA. Treatments were applied very four to five days beginning on 8 Aug at 8% silk. All insecticide treatments were applied with a modified John Deere 6000 high-clearance vehicle (HCV) with a rear-mounted boom. Six Conejet (TX VS-8) hollow-cone nozzles (three per row) were calibrated to deliver 30.1 gpa at 40 psi and a speed of 2.5 mph, utilizing a compressed air system. Four nozzles (two per row) were attached to drops and directed the spray towards the ear zone area, a third nozzle (one per row) was mounted directly over the row with the spray being directed into the whorl (tassel) area.

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Stability and Adaptability of Yield among Earliness Sweet Corn Hybrids in West Java, Indonesia

International Journal of Agronomy ◽

10.1155/2020/4341906 ◽

2020 ◽

Vol 2020 ◽

pp. 1-9

Author(s):

Dedi Ruswandi ◽

Yuyun Yuwariah ◽

Mira Ariyanti ◽

Muh Syafii ◽

Anne Nuraini

Keyword(s):

Sweet Corn ◽

Smallholder Farmers ◽

West Java ◽

Corn Hybrids ◽

Stability Parameters ◽

The Stability ◽

On Farm ◽

Main Effects ◽

Gge Biplots ◽

Corn Hybrid

Multienvironment testing is an important phase to study the interaction of G × E and to select stable hybrids for a broad environment or for a specific environment. To study the interaction of G × E and the stability of earliness and yield of Indonesian new sweet corn hybrids under different locations and seasons in West Java, Indonesia, eighteen hybrids were evaluated in six environments in West Java, Indonesia, and were analysed using parametric and nonparametric stability models, additive main effects and multiplicative interaction (AMMI), and GGE biplots. Results showed that the most promising sweet corn hybrids including hybrids G5 (SR 24 x SR 17) and G11 (SR 31 x SR 17) were identified. The parametric and nonparametric stability parameters and ASV were complement to the AMMI and GGE biplots in selecting stable and adaptable hybrids in terms of earliness and yield. G5 was selected as a high-response hybrid for grain yield to Jatinangor (E1, E2), Lembang (E3, E4), and Wanayasa (E5, E6), as well as earliness to Jatinangor (E2), Lembang (E3, E4), and Wanayasa (E5, E6). G5 sweet corn hybrid, therefore, is suggested to be extensively evaluated on farm and produced for smallholder farmers in West Java, Indonesia.

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