Grain Nitrogen Source Changes over Time in Maize: A Review

By Ignacio Antonio Ciampitti, Tony Vyn. 2013

197 citations recorded by the source corpus.

Understanding the sources of grain N uptake (Grain N) in maize ( Zea mays L.) and especially the trade-off between reproductive-stage shoot N remobilization ( remobilized N) and reproductive-stage whole-plant N uptake (reproductive N) is needed to help guide future improvements in yield and N use efficiency (NUE). Therefore, a literature review was performed to investigate the knowledge gap concerning changes over time in Grain N sources and on N partitioning to the grain and stover plant fractions at maturity. The synthesis-analysis was based on 100 reports, which were divided into two time intervals: (i) research conducted from 1940 to 1990—"o ld Era"—and (ii) research conducted from 1991 to 2011—"New Era." The most remarkable results were (i) Grain N concentration was the main parameter that has changed over time, (ii) reproductive N contributed proportionally more to Grain N for the New Era while r eproductive

Subfields: Agronomy and Crop Science, Plant Science

View Paper: https://www.semanticscholar.org/paper/59bb877b6399f161991bfd465c85bfb3a0893563

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Citations in the corpus

Plant biomass and nitrogen partitioning changes between silking and maturity in newer versus older maize hybrids (2015, methodology): “…to have a higher N content at silking, newer ybrids appear to have stronger source strength at the onset of rain filling (Gallais and Coque, 2005; Ciampitti and Vyn, 2013). owever, an overly rapid N remobilization early in grain filling tage can result in weak stems and lodging, especially at…”
Diverse concepts of breeding for nitrogen use efficiency. A review (2017, background): “Ciampitti and Vyn (2013) compared older maize cultivars (released before 1990) and more recent cultivars and concluded that with increasing yield over time, grain N concentration has decreased.”
New Insights into Soybean Biological Nitrogen Fixation (2018, methodology): “Data inclusion followed criteria defined in previous review papers (Ciampitti and Vyn, 2012, 2013, 2014; Ciampitti and Prasad, 2016).”