Trace element concentrations in the grain of wheat cultivars as affected by nitrogen fertilization

Svečnjak, Zlatko; Jenel, Marina; Bujan, Marija; Vitali, Dubravka; Dragojević, I.

doi:10.23986/afsci.8230

Cited by 30 publications

(19 citation statements)

References 18 publications

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“…The smaller the grain, the higher is the mass of the peripheral portion in the total mass of grain, which may contribute to higher concentrations of minerals in the grain as a whole. According to Svečnjak et al (), there is a weak correlation between the mass of 1000 grains and the concentrations of microelements, except in cultivars which differ significantly in the mass of 1000 grains, which is in line with our results. The concentration of mineral substances in wheat hull ash depends on ecological factors as well ( Terzioğlu et al, ), which may explain differences in Sr concentrations observed in different experimental years.…”

Section: Resultssupporting

confidence: 93%

Strontium accumulation in whole grain of Aegilops and Triticum species

Kastori

Maksimović

Denčić

et al. 2017

J. Plant Nutr. Soil Sci.

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Plant species differ in their ability to accumulate mineral elements. Differences also exist among genotypes, lines, and varieties within species. Strontium (Sr) enters the food chain primarily via plants, and wheat products are amongst the most important pathways by which Sr enters the human body. The aim of this study was to analyze the accumulation of Sr in whole grain of various Aegilops and Triticum species with different genomes (AA, BB, BBAA, BBAADD, and DD). During three experimental years plants were grown in temperate continental climate on a calcareous, gleyic chernozem soil. The results reveal that the studied species and genomes differed significantly in Sr accumulation in the grains. The average Sr concentration of the grains ranged, depending on the year of study and genotype, from 0.70 to 3.89 mg kg−1 DM. The grain of wild diploid Aegilops speltoides with BB genome contained significantly more Sr than all of the other analyzed genotypes. Grains of wild and cultivated tetraploid wheat genotypes had the lowest Sr concentration. The modern cultivated hexaploid wheat varieties displayed substantial variation in Sr concentration in the grains. The examined genotypes also differed significantly with respect to their mass of 1000 grains, which was the smallest in Aegilops speltoides. There was a significantly negative correlation between the average mass of a 1000 grains and concentration of Sr. The results show that even when the background concentration of Sr was relatively low, wheat genotypes accumulated it in the grains, although to a different extent. Therefore, selection of wheat genotypes which accumulate less Sr in the grain could contribute to improve food quality.

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Section: Resultssupporting

confidence: 93%

Strontium accumulation in whole grain of Aegilops and Triticum species

Kastori

Maksimović

Denčić

et al. 2017

J. Plant Nutr. Soil Sci.

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“…Therefore, we accept our third hypothesis regarding Mn in grain that the concentration of Mn in grain is similar or greater in inorganic N applied plots than in FYM or PV plots. Svecnjak et al [35] reported greater Mn in wheat grain with increased N rate, which is in line with our result. However, the mechanism involved in Mn uptake by N application is still not known.…”

Section: Total Micronutrient Accumulation In Wheat Grain and Strawsupporting

confidence: 93%

Micronutrients in the Soil and Wheat: Impact of 84 Years of Organic or Synthetic Fertilization and Crop Residue Management

et al. 2019

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Crop residues are an important source of plant nutrients. However, information on the various methods of residue management on micronutrients in soil and wheat (Triticum aestivum L.) over time is limited. A long-term (84-year) agroecosystem experiment was assessed to determine the impact of fertilizer type and methods of crop residue management on micronutrients over time under dryland winter wheat-fallow rotation. The treatments were: no N application with residue burning in fall (FB), spring (SB), and no residue burn (NB); 45 kg N ha−1 with SB and NB; 90 kg N ha−1 with SB and NB; pea vines; and farmyard manure (FYM) and a nearby undisturbed grass pasture (GP). Wheat grain, straw, and soil samples from 1995, 2005, and 2015 were used to determine tissue total and soil Mehlich III extractable Mn, Cu, B, Fe, and Zn, and soil pH. After 84 years, extractable Mn and B in the top 10 cm of soil decreased in all plots, except for B in FYM and SB. The FYM plots had the highest extractable Mn (114 mg kg−1) in the top 10 cm soil; however, it declined by 33% compared to the GP (171 mg kg−1). Extractable Zn in the top 10 cm of soil increased with FYM while it decreased with inorganic N application in 2015; however, total Zn in grain increased by 7% with inorganic N (90 kg ha−1) application compared to FYM application. The results suggest that residue management had similar impact on soil micronutrients. Inorganic N and FYM application can be integrated to reduce micronutrient losses from cultivation.

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“…In contrast to a study of Warechowska (2009bWarechowska ( , 2009c, no statistically significant effect of the applied fertilization on the contents of Zn a studies do not support these Mn in grains of the wheat cultivars under analysis was found. According to Svečnjak et al (2013), grain yield is related to the content of basic micronutrients. Studies do not support these relationships (Table 6).…”

Section: Resultsmentioning

confidence: 99%