Nitrogen and phosphorus uptake, yield and agronomic traits of oat cultivars as affected by fertilizer N rates under diverse environments

L., B.; Zheng, Zhiming; Pageau, Denis; Vera, C.; Frégeau‐Reid, Judith; Xue, Allen; Yan, Weikai

doi:10.1007/s10705-017-9848-8

Cited by 29 publications

(33 citation statements)

References 26 publications

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“…Figure 2B shows how N rates interacted with the genotypes. Despite the interactions, a clear general trend was that higher N rates led to significantly higher grain yield across genotypes and environments, as reported in Ma et al (2017); the mean yield under the 150-kg ha −1 N rate was 38% higher than that without N groat content at Normandin in 2014, however, did not differ between the 100-and 150-kg ha −1 N rates. Exceptions included CDC Seabiscuit and CDC Minstrel.…”

Section: Response Of Groat Content To N Fertilizermentioning

confidence: 54%

“…7B). Such cultivars must have good resistance to lodging so as to take advantage of high N rates, however, because high N rates also tend to lead to taller plants and more lodging (May et al, 2004;Mohr et al, 2007;Ma et al, 2017). These unfavorable genetic associations are common and have been repeatedly observed for diverse sources of data (Yan et al, 2007(Yan et al, , 2013(Yan et al, , 2016a.…”

Section: Discussion Trait Associations Across N Rates Versus Across Gmentioning

confidence: 99%

“…The soil and climate of these locations were presented in detail in Ma et al (2017). The soil and climate of these locations were presented in detail in Ma et al (2017).…”

Section: Methodsmentioning

confidence: 99%

“…They were: 'AAC Bullet' (Yan et al, 2017b), 'AAC Nicolas' (Yan et al, 2016b), 'AAC Noranda' (Yan et al, 2017a), 'AC Dieter', 'Bolina', 'CDC Minstrel', 'CDC Morrison', 'CDC Orrin', 'CDC Seabiscuit', and 'CFA1107' in 2013 at all locations. Yield and agronomic data were collected for each field plot, and some of the results were reported in Ma et al (2017). In addition, 'Stride' and 'Summit' (Mitchell-Fetch et al, 2011) were included in the Ottawa site in both years.…”

Section: Methodsmentioning

confidence: 99%

“…(iii) Nitrogen fertilizer effectively increased the yield of high-bglucan, low-yielding cultivars but had a limited (though statistically significant) effect in improving the b-glucan levels of cultivars that are low in b-glucan. Lodging was the key limiting factor to increasing oat grain yield through N fertilizer (Ma et al, 2017). It is proposed to use N fertilizer to improve yield (and, to a lesser extent, quality parameters) to complement breeding prioritizing superior quality (high b-glucan in particular) and lodging resistance.…”

Section: Nitrogen Fertilizer Complements Breeding In Improving Yield mentioning

confidence: 99%

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Nitrogen Fertilizer Complements Breeding in Improving Yield and Quality of Milling Oat

Yan

Frégeau‐Reid

et al. 2017

Crop Science

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A four‐level nitrogen (N) fertilizer study was conducted for nine diverse oat (Avena sativa L.) cultivars at three geographically diverse locations in Canada in 2013 and 2014 to study the effects of N fertilizer on grain yield and important quality parameters of milling oat. Analysis of variance and biplot analysis were used to interpret the multifactor, multitrait data. The findings are: (i) N fertilizer up to 150 kg ha−1 led to simultaneous and statistically significant improvement of grain yield, milling quality (groat content and proportion of undehulled kernels), and compositional quality (β‐glucan, protein, and oil concentrations), despite some N × genotype and N × environment interactions. (ii) β‐Glucan and oil concentrations were much more strongly determined by genotype than by N fertilizer; groat content and proportion of undehulled kernels were slightly more strongly determined by genotype than by N fertilizer; protein was similarly determined by genotype and N fertilizer; and grain yield was much more determined by N fertilizer than by genotype. (iii) Nitrogen fertilizer effectively increased the yield of high‐β‐glucan, low‐yielding cultivars but had a limited (though statistically significant) effect in improving the β‐glucan levels of cultivars that are low in β‐glucan. (iv) Cultivars differed in the extent of response to N fertilizer, so it is necessary to develop cultivar‐specific N management plans for different cultivars. It is proposed to use N fertilizer to improve yield (and, to a lesser extent, quality parameters) to complement breeding prioritizing superior quality (high β‐glucan in particular) and lodging resistance.

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Section: Response Of Groat Content To N Fertilizermentioning

confidence: 54%

Section: Discussion Trait Associations Across N Rates Versus Across Gmentioning

confidence: 99%

“…The soil and climate of these locations were presented in detail in Ma et al (2017). The soil and climate of these locations were presented in detail in Ma et al (2017).…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Nitrogen Fertilizer Complements Breeding In Improving Yield mentioning

confidence: 99%

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Nitrogen Fertilizer Complements Breeding in Improving Yield and Quality of Milling Oat

Yan

Frégeau‐Reid

et al. 2017

Crop Science

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Selection of oat (Avena sativa L.) drought‐tolerant genotypes based on multiple yield‐associated traits

Wen

Shi

et al. 2023

J Sci Food Agric

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BACKGROUND Most plant breeding and agricultural practices are based on selecting genotypes for yield. However, this is inadequate to screen crop varieties for specific attributes, such as drought tolerance. In this study, we quantified the response of oat (Avena sativa L.) plant physiological and morphological traits to drought stress and selected some key traits to establish a genotype by yield*trait (GYT)‐based method for ranking 30 oat genotypes. The effectiveness of this method was also evaluated under drought conditions. RESULTS Water‐deficit treatment significantly reduced leaf chlorophyll, root morphological traits, groat yield and associated components, such as mean grain weight. We observed that the genotypes ‘JUSTICE’ and ‘BOLINA’ had the smallest and largest yield loss, respectively, after exposure to drought stress, but showed opposite trends in the biomass allocation of roots and grains. This indicated that drought tolerance was highly dependent on the distribution of photoassimilates. Our results also illustrated that the GYT method is a trade‐off approach and more effective in selecting oat ideotypes under drought conditions than the yield‐related index method because it combines yield, yield stability, and related agronomic traits in the calculation process. CONCLUSION Drought‐tolerant genotypes had more biomass allocated to roots and grains with higher chlorophyll content and better root structure, e.g. longer root lengths than drought‐sensitive lines. By integrating yield and yield‐related traits, the GYT approach is more practical than traditional single‐trait selection methods when assessing drought tolerance. © 2023 His Majesty the King in Right of Canada. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. Reproduced with the permission of the Minister of Agriculture and Agri‐Food Canada.

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Exploring soil amendment strategies with polyacrylamide to improve soil health and oat productivity in a dryland farming ecosystem: One‐time versus repeated annual application

McLaughlin

et al. 2020

Land Degrad Dev

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Degraded lands resulting from human and natural causes are widespread in arid and semiarid regions throughout the world. Polyacrylamide (PAM) soil amendments are increasingly used to remediate these degraded lands with the potential benefits on soil health and crop production. However, the scientific evidence of farm-scale use of one-time versus repeated application of PAM has not been reported. The specific objective of this research was to determine the effects of single versus multiple annual PAM application on (a) the dynamic changes in soil quality parameters and (b) oat crop productivity indicators in a dryland farming ecosystem. Our data illustrated that multiple years of annual application of PAM significantly increased soil profile water storage, whereas it reduced soil bulk density and electrical conductivity in the top (0-20 cm) and deeper layers (20-60 cm) over those for the control or single PAM application. The improved soil microecological environments led to increased activities of soil enzymes urease (up to 106%), invertase (94%), and catalase (45%). These in turn promoted soil nutrient turnover and availability (e.g., 76% higher soil alkaline N) and crop growth leading to the improvement in grain protein (up to 31%), protein yield (58%), and partial factor productivity of nitrogen (20%), than did the control treatment. Taken together, these soil and crop performance indicators suggest that repeated annual PAM application for a minimum of 2-3 years would be an effective strategy to combat drought and land degradation and foster sustainable crop production in dryland agriculture under a changing climate scenario. K E Y W O R D S enzyme activity, nutrient turnover, organic matter, soil amendment, soil electrical conductivity, sustainable dryland farming

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Nitrogen and phosphorus uptake, yield and agronomic traits of oat cultivars as affected by fertilizer N rates under diverse environments

Cited by 29 publications

References 26 publications

Nitrogen Fertilizer Complements Breeding in Improving Yield and Quality of Milling Oat

Nitrogen Fertilizer Complements Breeding in Improving Yield and Quality of Milling Oat

Selection of oat (Avena sativa L.) drought‐tolerant genotypes based on multiple yield‐associated traits

Exploring soil amendment strategies with polyacrylamide to improve soil health and oat productivity in a dryland farming ecosystem: One‐time versus repeated annual application

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