Yield Response of Corn to Crowding Stress

By A. Hashemi, S. Herbert, D. Putnam. 2005

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Maize grain yield responses to plant height variability resulting from crop rotation and tillage system in a long-term experiment (2010, background): “, 1993), curvilinear (Hashemi et al., 2005), or quadratic (Tollenaar, 1992) response between yield and plant density.”
Maize response to elevated plant density combined with lowered N-fertilizer rate is genotype-dependent (2015, background): “Maize grain yield per plant decreases as the density per unit area increases [2].”
Survey of Plant Density Tolerance in U.S. Maize Germplasm (2014, background): “Likewise, Hashemi et al. (2005) reported that kernels per row and kernel weight both decreased as plant density increased, suggesting a complex interaction between the sink and assimilate supply.”
Why Do Maize Hybrids Respond Differently to Variations in Plant Density (2007, background): “There were also differences among hybrids in how grain yield per plant responded to total aboveground biomass per plant (Fig. 3). Grain yield can be also limited at low plant density if the hybrid presents low reproductive partitioning (Prior and Russell, 1975; Capristo, 2004; Hashemi et al., 2005 ”
Growth and Yield of Hybrid Maize ( Zea mays L.) in Relation to Planting Density and Nitrogen Levels during Winter Season in Nepal (2012, background): “Hashemi et al. (2005) reported a linear decline in number of kernel rows/ear with increasing plant density.”