Grain yield response of Zea mays (hybrid AE 703) to Azotobacter chroococcum H23

1988 ◽  
Vol 6 (4) ◽  
pp. 352-353 ◽  
Author(s):  
M. V. Martinez-Toledo ◽  
J. Gonzalez-Lopez ◽  
T. de la Rubia ◽  
J. Moreno ◽  
A. Ramos-Cormenzana
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Azotobacter Chroococcum ◽  
Yield Response

Maize (Zea mays L.) Grain Yield Response to Methods of Nitrogen Fertilization

2019 ◽  
Vol 50 (21) ◽  
pp. 2694-2700 ◽  
Author(s):  
Fikayo B. Oyebiyi ◽  
Lawrence Aula ◽  
Peter Omara ◽  
Eva Nambi ◽  
Jagmandeep S. Dhillon ◽  
...  
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Nitrogen Fertilization ◽  
Zea Mays L ◽  
Yield Response

Soil phosphorus tests and grain yield responsiveness of maize (Zea mays) on Ferrosols

Soil Research ◽  
1997 ◽  
Vol 35 (3) ◽  
pp. 609 ◽  
Author(s):  
P. W. Moody ◽  
T. Dickson ◽  
R. L. Aitken
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Linear Response ◽  
Buffer Capacity ◽  
Soil Phosphorus ◽  
Maximum Yield ◽  
Yield Response ◽  
Extractable P ◽  
Mitscherlich Equation ◽  
Highly Correlated

The grain yield response of maize (Zea mays) to various rates of applied phosphorus (P) was measured at each of 17 sites in the South Burnett region of south-eastern Queensland. The soils at all sites were Ferrosols. Relative grain yield of the nil applied P treatment [100 × (yield at nil applied P/maximum yield)] was related to Colwell (0·5 M NaHCO3) extractable P (PB), CaCl2-extractable P, and equilibrium P concentration and P buffer capacity calculated from P sorption curves. Of these P measurements, PB was most highly correlated with relative grain yield (R2 = 0·94 for a linear response and plateau fit, R2 = 0·92 for a Mitscherlich fit), and the PB values at 90% maximum grain yield were 20 mg/kg for the linear response and plateau model and 32 mg/kg for the Mitscherlich equation.

Corn (Zea mays) Response to Post-directed Sethoxydim Under Irrigated and Dryland Conditions

1992 ◽  
Vol 6 (3) ◽  
pp. 567-572
Author(s):  
James R. Smart ◽  
David A. Mortensen ◽  
Fred W. Roeth
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Yield Response ◽  
Yield Reduction ◽  
Growth Stages ◽  
Corn Hybrids ◽  
Visual Evaluation ◽  
Kernel Weights ◽  
Corn Hybrid ◽  
Corn Grain

Four corn hybrids were evaluated for tolerance to sethoxydim at 110 and 220 kg ha–1applied post-directed at two growth stages (V6–7 and V10–11). Dryland corn grain yields did not respond to sethoxydim, while irrigated corn yields were sensitive to sethoxydim treatments. Sethoxydim at 220 g ha–1reduced the grain yield of hybrid 3377 by 12% at both growth stages. Sethoxydim at the same rate reduced grain yield of hybrid 3379 by 15% when applied to V6–7 corn. Hybrid 3475 had an 11% grain yield reduction from sethoxydim applied at either dosage to V10–11 corn. Under irrigated conditions, a trend toward reduced grain yield was observed for hybrid 3183 at all application times and sethoxydim rates. Corn ear weights and kernel weights differed among hybrids but did not exhibit a response to sethoxydim within hybrids. Visual evaluation for crop injury and measured corn heights did not indicate a response to sethoxydim. There was no yield response in any hybrid to 110 g ha–1applied to V6–7 stage corn indicating this treatment was safe to use on all hybrids evaluated.

Relationship of Certain Stalk Characters with Grain Yield in Corn ( Zea mays L.) 1

Crop Science ◽  
1969 ◽  
Vol 9 (3) ◽  
pp. 265-267 ◽  
Author(s):  
T. P. Singh ◽  
M. S. Zuber ◽  
G. F. Krause
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Zea Mays L ◽  
Relationship Of

Regional Maize Grain Yield Response to Applied Phosphorus in Central America

1907 ◽  
Vol 87 (2) ◽  
pp. 208-213 ◽  
Author(s):  
William R. Raun ◽  
Hector J. Barreto
Keyword(s):  
Grain Yield ◽  
Central America ◽  
Yield Response ◽  
Maize Grain Yield ◽  
Maize Grain

Impact of Palmer Amaranth (Amaranthus palmeri) on Corn (Zea mays) Grain Yield and Yield and Quality of Forage1

2002 ◽  
Vol 16 (3) ◽  
pp. 532-536 ◽  
Author(s):  
RAFAEL A. MASSINGA ◽  
RANDALL S. CURRIE
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Palmer Amaranth ◽  
Amaranthus Palmeri ◽  
Yield And Quality

GRAIN YIELD COMPARISON OF PURE STANDS AND MIXTURES OF DIFFERENT PROPORTIONS FOR TWO HYBRIDS OF MAIZE

1985 ◽  
Vol 65 (3) ◽  
pp. 481-485 ◽  
Author(s):  
G. J. HOEKSTRA ◽  
L. W. KANNENBERG ◽  
B. R. CHRISTIE
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Zea Mays L ◽  
Pure Stand ◽  
Higher Plant ◽  
Data Support ◽  
Plant Densities ◽  
The Difference ◽  
Corn Grain ◽  
Corn Grain Yield

The objective of this study was to determine the effects on grain yield of growing cultivars in mixtures of different proportions. Two maize (Zea mays L.) hybrids, Pride 116 and United 106, were grown for 2 yr in pure stand and in seven mixtures of different proportions (7:1, 6:2, 5:3, 4:4, 3:5, 2:6, 1:7) at plant densities of 61 500, 99 400, and 136 000 plants per hectare. The total number of mixture combinations was 42, i.e. 2 years × three densities × seven proportions. All but one mixture yielded as expected based on the yield of component hybrids in pure stand. The higher yielding hybrid (United 106) yielded significantly less grain per plant in mixtures than in pure stand. The lower yielding hybrid (Pride 116) yielded more in mixtures than in pure stand, although the difference was not significant. These data support previous observations that the ability of a hybrid to yield in pure stands is not necessarily related to its ability to yield in mixtures. High plant densities appear to enhance the likelihood of interactions occurring among hybrids. For United 106, the number of proportions yielding less grain per plant than in pure stand was highly significant at the two higher plant densities. For Pride 116, the number of proportions yielding more than in pure stand was highly significant at the highest plant density.Key words: Corn, grain yield, mixtures of different proportions, high plant densities, Zea mays

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