The effect of foliar and soil applied molybdenum treatments on the molybdenum concentration of maize grain

1976 ◽  
Vol 16 (82) ◽  
pp. 761 ◽  
Author(s):  
RG Weir ◽  
RK Nagle ◽  
JB Noonan ◽  
AGW Towner
Keyword(s):  
Grain Yield ◽  
Nitrogen Concentration ◽  
Maize Seed ◽  
Foliar Sprays ◽  
Maize Plants ◽  
Maize Grain ◽  
Hybrid Maize ◽  
Molybdenum Concentration

Soil and foliar treatments to raise the concentration of molybdenum in maize grain were compared. Both methods raised molybdenum concentrations in the grain and leaves, but the foliar sprays were more effective. Spraying when the maize plants were 80 cm tall increased the molybdenum concentration in the seed more than earlier spraying when the plants were only 30 cm tall. None of the treatments affected grain yield or the nitrogen concentration in the grain or leaves. Foliar sprays should allow a reduction in the rates of molybdenum now needed to maintain adequate levels in certified hybrid maize seed.

scholarly journals Maize crop yield in function of salinity and mulch

2021 ◽  
Vol 25 (12) ◽  
pp. 840-846
Author(s):  
Francisco H. R. Costa ◽  
Geovana F. Goes ◽  
Murilo de S. Almeida ◽  
Clarissa L. Magalhães ◽  
José T. M. de Sousa ◽  
...  
Keyword(s):  
Grain Yield ◽  
Irrigation Water ◽  
Saline Water ◽  
Block Design ◽  
Agronomic Performance ◽  
Maize Crop ◽  
Randomized Block Design ◽  
Salinity Levels ◽  
Maize Plants ◽  
Maize Grain

ABSTRACT Irrigation with saline water affects the agronomic performance of the maize crop; however, the use of vegetal mulch may mitigate salt stress and promote an increase in yield. In this way, this study aimed to evaluate the grain yield of the maize plants submitted to different water salinity levels in the presence and absence of mulch. The experiment was conducted in a randomized block design arranged in a 2 × 2 factorial scheme. The first factor was the salinity of the irrigation water (1.0 and 4.0 dS m-1) and the second, with and without mulch, and five replicates. The variables analyzed were: unhusked ear mass, husked ear mass, cob mass, straw mass, husked ear diameter, husked ear length, and yield. The irrigation water with higher electrical conductivity affects negatively the ear mass with and without straw, ear diameter and ear length. The use of vegetation cover on the soil increased the unhusked ear mass with and without straw, ear diameter and length. The water with higher salinity (4.0 dS m-1) reduces the maize grain yield but with less intensity in the presence of mulch.

scholarly journals Evaluation of maize grain yield in drought-prone environment

2017 ◽  
Vol 62 (1) ◽  
pp. 15-29 ◽  
Author(s):  
Felix Takim ◽  
Gbedabo Olaoye ◽  
Yakeen Abayomi ◽  
Samuel Olakojo ◽  
Matthew Isah ◽  
...  
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Relevant Information ◽  
Yield Parameters ◽  
Randomized Complete Block Design ◽  
Main Effect ◽  
Early Maturing ◽  
Maize Grain ◽  
Set Up ◽  
Hybrid Maize

Multi-location trial data obtained between 2007 and 2014 involving open pollinated varieties (OPVs) and hybrid maize (Zea mays L.) were analysed using GGE (Genotype and Genotype x Environment) and AMMI (Additive Main Effect and Multiplicative Interaction) models to assess their performance and suitability as cultivars, and identify promising genotypes and sites for further evaluations in the different locations of the southern Guinea savanna of Nigeria. The experiments were set up as a randomized complete block design with three replications in all the locations. The plot size consisted of two rows, 5m long with inter and intra row spacing of 0.75m x 0.4m for the early maturing varieties and 0.75m x 0.5m for intermediate/late maturing varieties and hybrids. Two seeds were planted/hill to give a plant population of approximately 66,000 plants/ha (early) and 54,000 plants/ha (intermediate/late). Data were collected on agronomic and yield parameters. The environment accounted for 84.80% and 90.42% of the total variation in grain yield of OPVs and hybrids, respectively. TZE-Y-DT STR C4 (early OPV) and white-DT-STRSYN (intermediate/late OPV), TZE-W-Pop-DT STR-C5 (early maturing hybrids) and TZEEI 3 x TZEEI 46 (extra early genotype) were the most stable and high yielding. The core test locations for evaluation of early OPVs, intermediate/late OPVs and hybrids are Ilorin/Ballah, Ejiba/Mokwa and Kishi/Badeggi, respectively. This study recommends that fewer but better locations that provide relevant information should be used for conducting multilocation trials and TZE-Y-DT STR C4, white-DT-STR-SYN, TZE-W-Pop-DT STR-C5 and TZEEI 3 x TZEEI 46 should be further evaluated on farmer fields.

scholarly journals Effect of Male Planting Date and Female Plant Population on Hybrid Maize Yield and Evaluation of Use of Hybrid-Maize Simulation Model for Grain Yield Estimation in Hybrid Maize Seed Production

2018 ◽  
Vol 10 (3) ◽  
pp. 333
Author(s):  
Lennin Musundire ◽  
Shorai Dari ◽  
John MacRoberts ◽  
H. S. Yang ◽  
John Derera ◽  
...  
Keyword(s):  
Grain Yield ◽  
Simulation Model ◽  
Seed Production ◽  
Planting Date ◽  
Plant Population ◽  
Female Plant ◽  
Weather Data ◽  
Yield Estimation ◽  
Maize Seed ◽  
Hybrid Maize

The study was carried out to determine the effect of male planting date (MPD) and female plant population (FPP) on the grain yield (GY) performance of a three-way hybrid and to evaluate Hybrid-Maize simulation model for grain yield estimation in hybrid seed maize production. Fifteen treatment combinations of five MPD as a deviation from the female planting date and three FPP replicated three times were used. The Hybrid-Maize simulation model programme was used to forecast the possible GY outcomes for the fifteen treatments of the experiment using estimated parameters and weather data for the 2006/7 season. The field experiment produced significant (P < 0.005) main effects but non-significant interaction effects for GY, yield components and antheis-silking interval (ASI). Female seed yield was affected by time of male pollen shed relative to female silking: ASI, with highest yields associated with close synchrony (ASI= +/-3 days). ASI had a significant effect on the number of kernels per ear (KPE), with the greatest KPE (318) associated with an ASI of +/-3 days. FPP effects on yield are typical for maize, showing a curvilinear response from low to high density. The optimum population density for GY was 5.4 plants m-2. Simulation output from the Hybrid-Maize simulation model showed an overestimation of GY compare to the observed yield. Furthermore, the model was unable to predict yields for the low FPP of 2.7 plants m-2. We found that Hybrid-Maize simulation model has limited potential for simulating hybrid maize seed production, as it does not accommodate limitations that may occur during the growing season: difference in male and female planting dates, pollen density and dispersion. Hence, the fixed parameters for the Hybrid-Maize simulation model can only be used in maize commercial production.

Analysis of the moisture content of maize kernels in over-ripe plants

2006 ◽  
Vol 54 (4) ◽  
pp. 425-430
Author(s):  
T. Árendás ◽  
L. C. Marton ◽  
P. Bónis ◽  
Z. Berzsenyi
Keyword(s):  
Linear Regression ◽  
Moisture Content ◽  
Grain Yield ◽  
Equilibrium Moisture Content ◽  
Weather Conditions ◽  
Positive Correlation ◽  
Maize Grain Yield ◽  
Maize Grain ◽  
Maize Kernels

The effect of varying weather conditions on the moisture content of the maize grain yield was investigated in Martonvásár, Hungary from late August to late September, and from the 3rd third of September to the 1st third of Novemberbetween 1999 and 2002. In every year a close positive correlation (P=0.1%) could be observed between the moisture content in late September and the rate of drying down in October. Linear regression was used each year to determine the equilibrium moisture content, to which the moisture content of kernels returned if they contained less than this quantity of water in late September and harvesting was delayed. In the experimental years this value ranged from 15.24-19.01%.

Superimposition Effect of Film-mulching and Furrow Ridging Culture on Maize Grain Yield and WUE in Loess Plateau

2018 ◽  
Vol 44 (2) ◽  
pp. 268
Author(s):  
Jun-Hong XIE ◽  
Ling-Ling LI ◽  
Ren-Zhi ZHANG ◽  
Qiang CHAI
Keyword(s):  
Grain Yield ◽  
Loess Plateau ◽  
Maize Grain Yield ◽  
Film Mulching ◽  
Maize Grain

Effect of In-Season Nitrogen Management Strategy on Maize Grain Yield and Nitrogen Use Efficiency

2011 ◽  
Vol 37 (1) ◽  
pp. 152-157 ◽  
Author(s):  
You-Liang YE ◽  
Yu-Fang HUANG ◽  
Chun-Sheng LIU ◽  
Ri-Tao QU ◽  
Hai-Yan SONG ◽  
...  
Keyword(s):  
Grain Yield ◽  
Nitrogen Use Efficiency ◽  
Management Strategy ◽  
Nitrogen Management ◽  
Nitrogen Use ◽  
Maize Grain Yield ◽  
Use Efficiency ◽  
Maize Grain

Relation of Rubisco to Maize Grain Yield Improvement: Effect of Water Restriction

Crop Science ◽  
1992 ◽  
Vol 32 (3) ◽  
pp. 718-722 ◽  
Author(s):  
E. Martínez‐Barajas ◽  
C. Villanueva‐Verduzco ◽  
J. Molina‐Galán ◽  
H. Loza‐Tavera ◽  
E. Sánchez‐de‐Jiménez
Keyword(s):  
Grain Yield ◽  
Water Restriction ◽  
Yield Improvement ◽  
Maize Grain Yield ◽  
Effect Of Water ◽  
Improvement Effect ◽  
Maize Grain

scholarly journals Silymarin-Enriched Biostimulant Foliar Application Minimizes the Toxicity of Cadmium in Maize by Suppressing Oxidative Stress and Elevating Antioxidant Gene Expression

Biomolecules ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 465
Author(s):  
Hesham F. Alharby ◽  
Hassan S. Al-Zahrani ◽  
Khalid R. Hakeem ◽  
Hameed Alsamadany ◽  
El-Sayed M. Desoky ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Gene Expression ◽  
Lipid Peroxidation ◽  
Antioxidative Enzymes ◽  
Irrigation Water ◽  
Foliar Spray ◽  
Cd Stress ◽  
Enzyme Gene ◽  
Maize Plants ◽  
Maize Grain

For maize, the potential preventive role of foliar spraying with an extract derived from maize grain (MEg, 2%), silymarin (Sm, 0.5 mM), or silymarin-enriched MEg (MEg-Sm) in attenuating the stress effects of cadmium (Cd, 0.5 mM) was examined using a completely randomized design layout. Under normal conditions, foliar spraying with MEg, Sm, or MEg-Sm was beneficial (with MEg-Sm preferred) for maize plants, whereas the benefit was more pronounced under Cd stress. The use of Cd through irrigation water decreased plant growth traits, photosynthetic efficiency, including instantaneous carboxylation efficiency, Fv/Fm, and pigment contents, and hormonal contents (e.g., auxin, gibberellins, cytokinins including trans-zeatin, and salicylic acid). These undesired findings were due to an increase in Cd content, leading to increased levels of oxidative stress (O2•− and H2O2), ionic leakage, and lipid peroxidation. Therefore, this damage resulted in an increase in the activities of nonenzymatic antioxidants, Sm, antioxidative enzymes, and enzyme gene expression. However, under Cd stress, although foliar spray with MEg or Sm had better findings than control, MEg-Sm had better findings than MEg or Sm. Application of MEg-Sm greatly increased photosynthesis efficiency, restored hormonal homeostasis, and further increased the activities of various antioxidants, Sm, antioxidative enzymes, and enzyme gene expression. These desired findings were due to the suppression of the Cd content, and thus the levels of O2•−, H2O2, ionic leakage, and lipid peroxidation, which were positively reflected in the growth and accumulation of dry matter in maize plants. The data obtained in this study recommend applying silymarin-enriched maize grain extract (MEg-Sm at 0.24 g Sm L−1 of MEg) as a spray solution to maize plants when exposed to excess Cd in soil or irrigation water.

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