Effects of genetic and agronomic factors on grain composition in oats

Redaelli, R.; Scalfati, G.; Ciccoritti, Roberto; Cacciatori, P.; Stefanis, E. De; Sgrulletta, D.

doi:10.1556/crc.2014.0019

Cited by 17 publications

(10 citation statements)

References 27 publications

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“…Since the first two parameters, rainfall and C/N ratio, were nearly the same in the two sites, we concluded that the identical protein concentrations were due to the different crop yields. In fact, as reported by Redaelli et al (2014), oat protein content is inversely correlated to yield.…”

Section: Discussionsupporting

confidence: 59%

The effect of mechanical processing on avenanthramide and phenol levels in two organically grown Italian oat cultivars

Diamantini

Antonini

2017

J Food Sci Technol

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Avenanthramides (AVNs), free and bound phenols and their antioxidant capacities (ORAC) were evaluated in two L. cultivars, Donata and Flavia. The cultivars (cvs.) were grown in loamy and medium texture soils and assessed after industrial dehulling and milling. Total dietary fiber, β-glucan, starch and proteins were also evaluated. Cv. Donata showed 2.8 fold higher AVN storage as compared to cv. Flavia, which was linked with genotype. The accumulation of AVN content was also influenced by the texture of the soil. Dehulling resulted in a 75 and 37% AVN decrease in cv. Donata and Flavia, respectively. The dehulled grains of cv. Donata showed 40% reduction in free phenolic content, whereas the dehulled grains of both cvs. showed 67% reduction in bound phenols. Milling affected the bound phenolics and their antioxidant capacity. Cv. Flavia showed 1.3 fold higher β-glucan than that of cv. Donata. Total dietary fiber was reduced by 50 and 12% after dehulling and milling, respectively, while marginal changes in proteins were observed after milling. The results suggest that the choice of genotype and the kind of dehulling processes that are employed are essential considerations in the production of oat-based products with high AVN content and extra health benefits.

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Section: Discussionsupporting

confidence: 59%

The effect of mechanical processing on avenanthramide and phenol levels in two organically grown Italian oat cultivars

Diamantini

Antonini

2017

J Food Sci Technol

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“…Previous studies have noted that forage oat yield (e.g., straw and grain) is very responsive to nitrogen (N) fertilization. Total above-ground biomass increases linearly within a certain scope of increasing N fertilization, but excessive N fertilization has been found to result in a reduction in biomass yield (Ohm 1976;Marshall et al 1987;Rezende et al 2012;Zhao et al 2013;Redaelli et al 2014). The optimum time of fertilization and harvest has also been well established by plant scientists to maximize the biomass yield and produce well-balanced nutrient accumulation (Morris & Gardner 1958;Collins et al 1990;Contreras-Govea & Albrecht 2006).…”

Section: Introductionmentioning

confidence: 99%

Effect of urea fertilization on biomass yield, chemical composition,in vitrorumen digestibility and fermentation characteristics of forage oat straw in Tibet of China

Cui

Yang

et al. 2016

J. Agric. Sci.

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SUMMARYA completely randomized experiment for planting highland barley in 36 field plots of the Lhasa Agricultural Experiment Station was applied to investigate the effect of urea nitrogen (N) fertilization levels of 0 (control), 156, 258, 363, 465 and 570 kg/ha on nutrient accumulation, in vitro rumen gas production and fermentation characteristics of highland barley straw (HBS). Each urea application was divided into three portions of 0.4, 0.3 and 0.3 and sequentially fertilized at seeding (growth stage (GS) 0), stem elongation (GS 32) and heading (GS 49), respectively. The maturity stage lasted 5-13 days longer in response to the urea N fertilization compared with the control. After removing grains, HBS biomass was harvested at maturity. The biomass yields of leaf, stem, straw and grain were increased quadratically with increasing urea N fertilization, and HBS and grain yields peaked at the estimated urea N fertilization levels of 385 and 428 kg/ha, respectively. The increase of urea N fertilization increased the accumulation of crude protein, cellulose and lignin, and decreased the content of ash and hemicellulose in HBS, resulting in a decrease of the energy content available to be metabolized. After incubating HBS for 72 h with rumen fluids from lactating cows, the urea N fertilization decreased in vitro dry matter disappearance and cumulative gas production, and slightly altered fermentation end-gas composition. Urea N fertilization decreased microbial volatile fatty acid production, but did not alter the ratio of lipogenic acetate and butyrate to glucogenic propionate. In a brief, the current urea N fertilization strategy promoted the growth of the highland barley and increased biomass yield, protein and cellulose accumulation of HBS. A urea N fertilization level ⩽385 kg/ha could be sufficient for growth of highland barley in Tibet without a consequent nutritive reduction in ruminal digestion.

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“…It has high protein grain and adequate levels of carbohydrate and lipid content, with a high proportion of dietary fiber, especially β-glucan, related to cholesterol reduction, which is helpful to prevent diabetes, obesity and cancer (Crestani et al, 2012;Silveira et al, 2016). These qualities have attracted the interest of food industries in this cereal due to its various benefits for human health (Daou and Zhang, 2012;Redaelli et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Research Article Nitrogen levels in oat grains and its relation to productivity

Mantai¹,

Silva²,

Scremin³

et al. 2020

Genet. Mol. Res.

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Analysis of the relationship of oat grain chemical components with productivity can yield information that determines crop production strategies. The market values high protein grain, but production and other nutritional components may be affected in the effort to increase protein levels. The objective of this study was to determine how the dynamics of the components of oat grain chemical composition relate to productivity when adding nitrogen to the soil, in order to develop nutrient management strategies that can combine productivity with grain quality. The study was conducted from 2011 to 2016 in Augusto Pestana, Brazil, in a randomized block design with four replications in a 4x2 factorial design for nitrogen rates (0, 30, 60 and 120 kg.ha-1) and standard biotype oat cultivars used on a commercial scale (Barbarasul and Brisasul) in two succession systems soybean/oat and corn/oat, totaling 64 experimental units. The nitrogen doses were applied at the phenological stage of expanded fourth leaf using urea. The increase of nitrogen fertilization for topdressing promoted increase of the total protein of oat grains and reduction of the total fiber in both soybean/oat and corn/oat systems. Higher levels of grain protein due to nitrogen fertilization reduced grain production, regardless of the cropping system.

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Effects of genetic and agronomic factors on grain composition in oats

Cited by 17 publications

References 27 publications

The effect of mechanical processing on avenanthramide and phenol levels in two organically grown Italian oat cultivars

The effect of mechanical processing on avenanthramide and phenol levels in two organically grown Italian oat cultivars

Effect of urea fertilization on biomass yield, chemical composition,in vitrorumen digestibility and fermentation characteristics of forage oat straw in Tibet of China

Research Article Nitrogen levels in oat grains and its relation to productivity

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