Nitrogen Remobilization during Grain Filling in Wheat: Genotypic and Environmental Effects

By A. Barbottin, C. Lecomte, C. Bouchard, Marie Hélène Jeuffroy. 2005

236 citations recorded by the source corpus.

In wheat (Triticum aestivum L.), nitrogen remobilization from the vegetative organs of the crop to the grains has been shown to depend on environmental factors and genotype. We performed, for a set of 10 winter wheat genotypes, field experiments at six sites over a 2-yr period. By measuring nitrogen uptake at flowering (NUF from 32-284 kg ha -1 ), the amount of remobilized nitrogen (REMN from 24-228 kg ha -1 ) and nitrogen remobilization efficiency (NRE from 0.44-0.92) we were able to determine the effect of genotype and environment on the relationship between REMN and NUF. Environment and genotype had significant effects on nitrogen remobilization and nitrogen remobilization efficiency, which mainly depended on treatment (nitrogen and fungicide) and site. For environments without limiting factor during the grain-fluing period, we found that REMN was not dependent on the genotype and could be estimated by a single two-parameter linear relationship (REMN = 4.13 + NUF × 0.76, r 2 = 0.97). We analyzed the effect of drought stress before and after flowering, high temperature during these periods, nitrogen availability and disease pressure on REMN by comparing observed and estimated REMN. The effect of the environment on the relationship between nitrogen uptake at flowering and nitrogen remobilization depended on nitrogen uptake during grain-filling period and disease pressure and was also affected by genotype. Disease-resistant genotypes seemed to be able to keep remobilization efficiency stable in conditions of strong disease pressure, whereas nitrogen remobilization efficiency decreased strongly in susceptible genotypes under the same conditions.

Subfields: Agronomy and Crop Science, Plant Science

View Paper: https://www.semanticscholar.org/paper/04ab224899fb0eebbfaeef8a17995f49bc9fc5e2

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Citations in the corpus

Accumulation and Translocation of Nitrogen in Spring Cereal Cultivars Differing in Nitrogen Use Efficiency (2007, result): “The mean values reported by Cregan and van Berkum (1984) and Barbottin et al. (2005) for wheat varied from 0.66 to 0.92, whereas our results for wheat ranged from 0.47 to 0.72.”
Identifying traits to improve the nitrogen economy of wheat: Recent advances and future prospects (2009, background): “…tissues has been reported in wheat in the overall range 0.52–0.92 (Cox et al., 1986; Van Sanford and Mackown, 1987; Papakosta and Garianas, 1991; Barbottin et al., 2005; Tahir and Nakata, 2005), and the genotype effect has been shown to depend on year (Przulj and Momcilovic, 2001) and N…”
Effects of genotype and environment on N uptake and N partition in organically grown winter wheat (Triticum aestivum L.) in Germany (2008, background): “Genetic differences concerning these characteristics have been shown ( Barbottin et al. 2005; Papakosta and Garianas 1991; Kichey et al. 2007; Przulj and Momcilovich 2001a, 2001b) and may be used to improve adaptation to special environmental”
Nitrogen partitioning and remobilization in relation to leaf senescence, grain yield and grain nitrogen concentration in wheat cultivars ☆ (2014, background): “Higher remobilization has been observed under low N supply compared o high N supply by Barbottin et al. (2005).”
Replacing the nitrogen nutrition index by the chlorophyll meter to assess wheat N status (2007, unknown): “Further details of these experiments are given in Barbottin et al. (2005). Each of these three experiments was kept free of weeds, pests, diseases and drought stress using appropriate chemicals and irrigation.”
Comparison of stepwise selection and Bayesian model averaging for yield gap analysis (2008, methodology): “The same approach has been applied by Brancourt-Hulmel et al. (1999) and Barbottin et al. (2005).”
Developments in breeding cereals for organic agriculture (2008, unknown): “…on (1) total uptake from the soil, (2) translocation from the vegetative tissues to the developing grain, (3) direct transfer from the soil to the grain after anthesis, and (4) losses of nitrogen already absorbed (Barbottin et al. 2005; Bertholdsson and Stoy 1995; Pommer 1990; Papakosta 1994).”