Optimal numbers of environments to assess slopes of joint regression for grain yield, grain protein yield and grain protein concentration under nitrogen constraint in winter wheat

Zheng, Bing; Gouis, Jacques Le; Dorvillez, D.; Brancourt‐Hulmel, Maryse

doi:10.1016/j.fcr.2009.05.001

Cited by 19 publications

(8 citation statements)

References 25 publications

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“…The higher the protein content, the better is the wheat quality, 38 and premiums are often paid for high-protein bread wheat. 39 Zheng et al 40 developed an experiment including 27 environments that were combination of two years, seven locations, three nitrogen levels and two sowing densities, where the protein concentration mean value obtained for Cezanne variety was 109 mg protein g −1 flour. In our experiment, the N input was relatively low compared with other pot experiments, since Zahedi et al 41 applied 60 mg N per plant as low N dose and 120 mg N per plant as high N dose, and Mi et al 42 applied 120 mg N per plant as low N dose and 200 mg N per plant as high N dose.…”

Section: Grain N Contentmentioning

confidence: 56%

“…The higher the protein content, the better is the wheat quality, and premiums are often paid for high‐protein bread wheat . Zheng et al . developed an experiment including 27 environments that were combination of two years, seven locations, three nitrogen levels and two sowing densities, where the protein concentration mean value obtained for Cezanne variety was 109 mg protein g −1 flour.…”

Section: Discussionmentioning

confidence: 99%

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Ammonium as sole N source improves grain quality in wheat

et al. 2013

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Section: Grain N Contentmentioning

confidence: 56%

Section: Discussionmentioning

confidence: 99%

Ammonium as sole N source improves grain quality in wheat

et al. 2013

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“…(2018), who found that winter wheat grain N concentration decreased by 8% with plastic film mulch compared to no mulch when grown on the Loess Plateau. Increasing grain yield was usually considered to be the reason for this decrease in N concentration because of dilution effects (Arduini, Masoni, Ercoli, & Mariotti, 2006; Triboi, Martre, Girousse, Ravel, & Triboi‐Blondel, 2006; Zheng, Gouis, Daniel, & Brancourt‐Hulmel, 2009). Compared to the NM treatment, the average yield and biomass of the RM+FS treatment increased by 4 and 10% (Figure 3), while grain, straw, and chaff N concentration decreased by 0.9, 0.3, and 0.3 g kg −1 (Table 2) respectively; thus, the aboveground component of N uptake was higher but statistically similar to that under the NM treatment.…”

Section: Discussionmentioning

confidence: 99%

Winter wheat nitrogen utilization under different mulching practices on the Loess Plateau

et al. 2020

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Winter wheat (Triticum aestivum L.) is one of the most important cereal crops in the world, and mulching is mostly practiced in the semi-arid region of Northwest China. We examined the effect of different mulching practices on soil N, plant N uptake, N use efficiency and yield of wheat with similar fertilizer rate. The experiment was conducted for 5 yr with four replicates. The five practices included: Control (CK), nitrogen fertilizer and no mulching (NM), nitrogen fertilizer plus plastic film mulching (PM), nitrogen fertilizer plus ridge mulching and furrow seeding (RM+FS), and nitrogen fertilizer plus straw mulching (SM). We found that yield and biomass of winter wheat were significantly affected by different mulching practices during the five growing seasons. Compared to the NM treatment, the PM, SM, and RM+FS treatments increased grain yield by 13, 9, and 4%, respectively, and biomass by 19, 13, and 10%, respectively. Compared to the NM, the RM+FS and PM treatments tended to decrease average grain, straw, and chaff N concentration, while straw mulching tended to increase average grain, straw, and chaff N concentration. Compared to the NM treatment, all mulching treatments consistently increased NUE, and straw mulching had the most significant effect. Nitrate-N in the NM was most likely to leach into deep layers, followed by the SM and the lowest nitrate-N leaching risk was in the two plastic film mulching treatments. The PM could increase winter wheat yield and decrease the risk of nitrate-N leaching. Thus, PM performed better among the mulching practices.

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“…For example, the genetic improvement of grain yield (GY) and grain protein concentration (GPC) is impeded by several factors. Firstly, increasing both GY and GPC represents a major challenge in plant breeding due to the observed negative correlation [Cooper et al (2001); Oury and Godin (2007); Zheng et al (2009) ;Groos et al (2003); Kibite and Evans (1984); Rharrabti et al (2001); DePauw et al (2007); Simmonds (1995)). Secondly, future GY improvements must be achieved under global warming, with a reduction of the use of water and fertilizers due to environmental issues.…”

Section: Introductionmentioning

confidence: 99%

Multi-objective optimized breeding strategies

Akdemir

Sánchez

2017

Preprint

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Funding informationMulti-objective optimization is an emerging field in mathematical optimization which involves optimization a set of objective functions simultaneously. The purpose of most plant and animal breeding programs is to make decisions that will lead to sustainable genetic gains in more than one traits while controlling the amount of co-ancestry in the breeding population. The decisions at each cycle in a breeding program involve multiple, usually competing, objectives; these complex decisions can be supported by the insights that are gained by using the multi-objective optimization principles in breeding. The discussion here includes the definition of several multi-objective optimized breeding approaches and the comparison of these approaches with the standard multitrait breeding schemes such as tandem selection, culling and index selection. We have illustrated the newly proposed methods with two empirical data sets and with simulations.

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Optimal numbers of environments to assess slopes of joint regression for grain yield, grain protein yield and grain protein concentration under nitrogen constraint in winter wheat

Cited by 19 publications

References 25 publications

Ammonium as sole N source improves grain quality in wheat

Ammonium as sole N source improves grain quality in wheat

Winter wheat nitrogen utilization under different mulching practices on the Loess Plateau

Multi-objective optimized breeding strategies

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