Protein accumulation and composition in wheat grains: Effects of mineral nutrients and high temperature

DuPont, Frances M.; Hurkman, William J.; Vensel, William H.; Tanaka, Charlene K.; Kothari, Kerry M.; Chung, O. K.; Altenbach, Susan B.

doi:10.1016/j.eja.2006.04.003

Cited by 201 publications

(163 citation statements)

References 43 publications

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“…The observed protein levels were in line with those previously reported for old and modern durum wheat varieties cropped under low N input management (Quaranta et al, 2010;De Vita et al, 2007b) and were also comparable with those obtained at higher nitrogen rates by Giuliani et al (2011). The protein accumulation was shown to be highly dependent on genotype, soil fertility (available N) and environmental conditions (temperature, water) (Giuliani et al, 2011;Dupont et al, 2006). In our study, the growing season was observed to have a big effect on protein content, with a significant increase from 143.5 to 161.4 g/kg during the second year compared to the previous one.…”

Section: Macronutrient Profilesupporting

confidence: 76%

Agronomic, nutritional and nutraceutical aspects of durum wheat (Triticum durum Desf.) cultivars under low input agricultural management

et al. 2013

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Among cereals, durum wheat has a central role in the Italian diet and economy, where there is a historical tradition of pasta making. In the present study, we evaluated the nutrient and nutraceutical properties of 2 old and 6 modern durum wheat varieties grown under low input agricultural management. Considering the lack of available data on the adaptability of existing durum wheat varieties to the low input and organic sectors, the research aimed at providing a complete description of the investigated genotypes, considering the agronomic performance as well as the nutrient and phytochemical composition. The experimental trials were carried out at the same location (Bologna, Northern Italy) for two consecutive growing seasons

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Section: Macronutrient Profilesupporting

confidence: 76%

Agronomic, nutritional and nutraceutical aspects of durum wheat (Triticum durum Desf.) cultivars under low input agricultural management

et al. 2013

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“…It is well known that for every 1°C increase in ambient temperature during the grain-filling period, yield is reduced by up to 4% (McDonald et al, 1983). According to DuPont et al (2006), heat stress during grain-filling reduces grain weight by 50%. So, there is a need to develop varieties that not only have the ability to escape, avoid, or tolerate this stress, but also to produce higher yields in these conditions.…”

Section: Discussionmentioning

confidence: 99%

Genetic Analysis of Relative Cell Injury Percentage and Some Yield Contributing Traits in Wheat Under Nomral and Heat Stress Conditions

Farooq

Khaliq

Kashif

et al. 2011

Chilean J. Agric. Res.

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Several wheat genotypes were screened against heat stress. Seven wheat (Triticum aestivum L.) cultivars obtained after screening against heat classified as tolerant, moderately tolerant, and susceptible to heat stress, were mated in a complete diallel mating system to study the inheritance pattern of relative cell injury percentage (cell injury %) and some yield contributing parameters under normal and heat stress conditions. Significant genotypic differences were found (P < 0.01) for all the studied traits under both regimes. The scaling test disclosed partial adequacy for traits such as days to heading and days to maturity, but for flag leaf area and relative cell injury %, it showed full sufficiency under both environments. The model for grain yield per plant and biomass per plant were fully adequate under normal conditions, but partially adequate under stress. The harvest index showed partial adequacy under normal conditions, but was fully adequate under stress. The additive component of genotypic variation (D) was significant for all studied traits and more significant than the H 1 and H 2 dominance components. Values of the gene proportion with positive and negative effects in the parents (H 2 /4H 1 ) demonstrated an unequal distribution of dominant genes in the parents for almost all the traits except for flag leaf area, grain yield per plant, and harvest index which showed an equal distribution of dominant genes under stress conditions. High heritability estimates were found for days to heading, days to maturity, flag leaf area, grain yield, and relative cell injury percentage under both regimes. Moderately high estimates were found for biomass per plant and harvest index.

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“…The combined application of N and Zn fertilizer has a synergistic effect on grain Zn concentration (Kutman et al 2011). Nitrogen application and N availability also positively affects wheat grain protein concentration (Dupont et al 2006). Cakmak et al (2010) found that grain Zn and Fe concentrations were strongly correlated with grain protein.…”

Section: Grain Nitrogen Status and Zn And Fe Biofortificationmentioning

confidence: 99%

Hydrolysed wool: a novel soil amendment for zinc and iron biofortification of wheat

Gogos

Evangelou

Schäffer

et al. 2013

New Zealand Journal of Agricultural Research

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Biofortification*with either the application of zinc and iron fertilizer or the application of amendments to increase their bioavailability in soil*is a possible strategy to tackle worldwide micronutrient malnutrition. We investigated the effect of hydrolysed wool on the uptake of zinc and iron by wheat (Triticum aestivum var. Greina). We performed pot experiments in which either hydrolysed wool or mineral fertilizer of the same elemental composition was incorporated into a loamy-sand collected from an agricultural field. Zinc grain concentrations were 37.7 mg kg(1 (control), 45.5 mg kg (1 (mineral fertilization) and 54.1 mg kg(1 (hydrolysed wool). In addition, hydrolysed wool application increased grain yield 2-fold and grain protein content 1.5-fold, compared with 1.4-fold and 1.3-fold, respectively, by the mineral fertilizer. We propose that hydrolysed wool could be used to supplement other fertilizers, enhancing the latter with an easily available N source as well as promoting zinc and iron uptake in plants.

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Protein accumulation and composition in wheat grains: Effects of mineral nutrients and high temperature

Cited by 201 publications

References 43 publications

Agronomic, nutritional and nutraceutical aspects of durum wheat (Triticum durum Desf.) cultivars under low input agricultural management

Agronomic, nutritional and nutraceutical aspects of durum wheat (Triticum durum Desf.) cultivars under low input agricultural management

Genetic Analysis of Relative Cell Injury Percentage and Some Yield Contributing Traits in Wheat Under Nomral and Heat Stress Conditions

Hydrolysed wool: a novel soil amendment for zinc and iron biofortification of wheat

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