Plant Population Density and Maturity Effects on Profitability of Short-Season Maize Production in the Midsouthern USA

2006 ◽  
Vol 98 (3) ◽  
pp. 760-765 ◽  
Author(s):  
Michael Popp ◽  
Jeff Edwards ◽  
Patrick Manning ◽  
Larry C. Purcell
Keyword(s):  
Population Density ◽  
Plant Population ◽  
Maize Production ◽  
Short Season ◽  
Plant Population Density

Does increasing plant population density alter sugar yield in high stalk-sugar maize hybrids?

2017 ◽  
Vol 68 (1) ◽  
pp. 1 ◽  
Author(s):  
B. L. Ma ◽  
Z. M. Zheng ◽  
M. J. Morrison
Keyword(s):  
Population Density ◽  
High Energy ◽  
Green Energy ◽  
Plant Population ◽  
Sugar Accumulation ◽  
Dual Purpose ◽  
Maize Production ◽  
Maize Hybrids ◽  
Silage Maize ◽  
Plant Population Density

Escalating demands for food and green energy have renewed interest in the dual-purpose use of maize (Zea mays L.) for a biofuel and high-energy forage crop. Recently, maize hybrids with high stalk-sugar (sugarcorn) have been developed. It is important to determine how agronomic practices, for example altering plant population density (PPD), affect stalk-sugar yields of these newly developed hybrids and to advance knowledge required for producing sugarcorn as a dual-purpose bioenergy–high energy silage crop in short-season regions unable to grow sugarcane. A field experiment was conducted for 3 years to assess the effect of PPD on stalk-sugar accumulation, dry matter production, silage and sucrose yields of sugarcorn compared with two commercial silage hybrids. Targeted PPD ranged from 75 000 to 150 000 plants ha–1 in increments of 25 000 plants ha–1. We found that increasing PPD from 75 000 to 125 000 plants ha–1 increased stalk sugar concentrations by up to 25% in some of the sugarcorn hybrids, with minimum change in the conventional check hybrids. The sugarcorn hybrid CO348 × C103 had the highest stalk sugar concentration (128 g kg–1) and sucrose yield of up to 3.8 Mg ha–1 at the targeted PPD of 125 000 (or actual 118 000 ± 7000) plants ha–1. By contrast, the check silage hybrids produced at most 2.0 Mg ha–1 of sucrose yield with much lower stalk sugar concentrations (53–65 g kg–1). Sugarcorn hybrids had generally lower grain yield with greater plant barrenness (the failure of a plant to produce a normal ear) and severer head smut infestation than the conventional silage hybrids. Our results suggest that as a silage crop, the current recommended PPD of 75 000–85 000 plants ha–1 for commercial silage maize production in the region is likely suitable for sugarcorn, and a higher PPD is required if sugarcorn hybrids are designated as a biofuel crop or for dual-purpose use.

Plant Population Density Effects on Maize Inbred Lines Grown in Short‐Season Environments

Crop Science ◽  
1998 ◽  
Vol 38 (1) ◽  
pp. 104-108 ◽  
Author(s):  
A. M. Modarres ◽  
R. I. Hamilton ◽  
M. Dijak ◽  
L. M. Dwyer ◽  
D. W. Stewart ◽  
...  
Keyword(s):  
Population Density ◽  
Inbred Lines ◽  
Plant Population ◽  
Density Effects ◽  
Maize Inbred Lines ◽  
Short Season ◽  
Plant Population Density

Adaptation of CERES-Maize model for a better simulation of plant population density effects

2019 ◽  
Vol 238 ◽  
pp. 27-34 ◽  
Author(s):  
R. Cazanga ◽  
J.F. Ledent ◽  
E. von Bennewitz
Keyword(s):  
Population Density ◽  
Plant Population ◽  
Density Effects ◽  
Plant Population Density

Frost damage to winter wheat in the UK: the effect of plant population density

2004 ◽  
Vol 21 (1) ◽  
pp. 105-115 ◽  
Author(s):  
J.M Whaley ◽  
E.J.M Kirby ◽  
J.H Spink ◽  
M.J Foulkes ◽  
D.L Sparkes
Keyword(s):  
Population Density ◽  
Winter Wheat ◽  
Frost Damage ◽  
Plant Population ◽  
Plant Population Density ◽  
The Uk

scholarly journals Effects of population density on cauliflower crop (Brassica oleracea L. var. botrytis)

1981 ◽  
Vol 38 (1) ◽  
pp. 1-10
Author(s):  
Keigo Minami ◽  
Ricardo Victoria Fº
Keyword(s):  
Population Density ◽  
Brassica Oleracea ◽  
Plant Population ◽  
Population Densities ◽  
Plant Population Density ◽  
Brassica Oleracea L ◽  
Quality Weight

An experiment was carried out to study the effects of the following population densities cauliflowers (plants per ha): 20,833 (0.60 m x 0.80 m), 25,641 (0.60 m x 0.65 m), ....37.037 (0.60 m x 0.45 m) , 55.555 (.0.60 m x 0.30 m), and 111,111 (0,60 m x 0,15 m) ; variety Snow ball. It was concluded that the effects of plant population density are greater on curd quality (weight and size) than on production per ha. The best plant population density to produce cauliflowers curd for Brazil market is from 20,000 to 25,000 plants/ha while for mini-curd is above 55,000 plants/ha.

Plant Population Density Effects on Seed Yield of Birdsfoot Trefoil 1

1986 ◽  
Vol 78 (1) ◽  
pp. 201-205 ◽  
Author(s):  
R. L. McGraw ◽  
P. R. Beuselinck ◽  
K. T. Ingram
Keyword(s):  
Population Density ◽  
Seed Yield ◽  
Plant Population ◽  
Birdsfoot Trefoil ◽  
Density Effects ◽  
Plant Population Density

Grain Yield Gains and Associated Traits in Tropical X Temperate Maize Germplasm Under High and Low Plant Density

2021 ◽  
Author(s):  
Vince Ndou ◽  
Edmore Gasura ◽  
Pauline Chivenge ◽  
John Derera
Keyword(s):  
Population Density ◽  
Grain Yield ◽  
Plant Density ◽  
Plant Population ◽  
Population Densities ◽  
Genetic Gains ◽  
Maize Germplasm ◽  
High Plant Density ◽  
Number Of Leaves ◽  
Plant Population Density

Abstract Development of ideal breeding and crop management strategies that can improve maize grain yield under tropical environments is crucial. In the temperate regions, such yield improvements were achieved through use of genotypes that adapt high plant population density stress. However, tropical germplasm has poor tolerance to high plant population density stress, and thus it should be improved by temperate maize. The aim of this study was to estimate the genetic gains and identify traits associated with such gains in stable and high yielding temperate x tropical hybrids under low and high plant population densities. A total of 200 hybrids derived from a line x tester mating design of tropical x temperate germplasm were developed. These hybrids were evaluated for grain yield and allied traits under varied plant population densities. High yielding and stable hybrids, such as 15XH214, 15XH215 and 15XH121 were resistant to lodging and had higher number of leaves above the cob. The high genetic gains of 26% and desirable stress tolerance indices of these hybrids made them better performers over check hybrids under high plant population density. At high plant population density yield was correlated to stem lodging and number of leaves above the cob. Future gains in grain yield of these hybrids derived from temperate x tropical maize germplasm can be achieved by exploiting indirect selection for resistance to stem lodging and increased number of leaves above the cob under high plant density conditions.

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