Search Results

You are looking at 1 - 10 of 460 items for :

  • "Bread wheat" x
  • All content x
Clear All

Abstract  

Selenium is an essential micronutrient for humans and animals, yet it is deficient in at least one billion people worldwide. Plants and plant-derived products transfer the soil-uptaken selenium to humans; therefore, the cultivation of plants enriched in selenium can be an effective way to improve the selenium status on humankind. This paper focuses on determining the ability of bread wheat to accumulate selenium after supplementation. One of the methods for supplementing this element in plants is foliar application with selenium solutions. These supplemented crop of wheat samples—bread wheat; Triticum aestivum L.—were used to determine if there is an increase of selenium content in cereal grains by comparing them with cereals cultivated in 2009 and harvested in 2010 with no supplementation. The experiments were done using sodium selenate and sodium selenite at three different selenium concentrations: 4, 20 and 100 g per hectare. Total Se is assessed by cyclic neutron activation analysis (CNAA), through short irradiations on the fast pneumatic system (SIPRA) of the Portuguese Research Reactor (RPI-ITN). The short-lived nuclide 77mSe, that features a half-lifetime of 17.5 s, was used to determine the Se content in SIPRA. The experiment was successful, since the selenium concentration increased in the cropped grains and reached values up to 35 times the non-supplemented ones.

Restricted access

Abstract  

Selenium (Se) is an essential micronutrient for human health, but its deficiency may affect at least one billion people worldwide. Plants and plant-derived products transfer the soil-uptaken Se to humans through the food chain, which is hardly enough when soils have been always poor or already exhausted in bioavailable Se species. Other than agronomic approaches for enhancing Se levels in cereals, such as soil and foliar supplements, seed enrichment may be viewed as an alternative Se-biofortification technique. This study addresses the protocol for preparing Se-enriched wheat seeds, with the specific purpose of optimizing the administration of Se to the seeds prior to sowing. The first step was to soak an amount of bread-wheat seeds in an active Se solution, made with irradiated [Na2O4Se], and then monitoring 75Se in periodically-retrieved samples from that original amount. To avoid losing Se to soil (after sowing), and, especially, to ensure that Se gets really absorbed into the seeds—and not just adsorbed onto them—the washing time of the seeds should be optimized as well. This was carried out by washing Se-treated seeds several times, until no significant amount of the radiotracer could be detected in the washing water. In what concerns the full optimization procedure, the overall results of the present study point to an optimum time of 48 h for soaking and 24 h for washing.

Restricted access

., Rémésy, C., Chanliaud, E., Duperrier, B., Balfourier, F., Charmet, G. 2006. Genetic variability and stability of grain magnesium, zinc and iron concentrations in bread wheat. Eur. J. Agron. 25 :177–185. Charmet G

Restricted access
Cereal Research Communications
Authors: A. shahnejat Bushehri, A. Salavati, B. yazdi Samadi, M. Hassani, and S. Shahnejat Bushehri

Dachkevitch, T., Redaelli, R., Biancardi, A.M., Metakovsky, E.V., Pogna, N.E. 1993. Genetics of gliadins coded by the group 1 chromosomes in the high-quality bread wheat cultivar Neepawa. Theor. Appl. Genet. 86 :389

Restricted access

wheat cultivar tolerant to aluminum. Brotéria-Genética 1–2 :65–68. Mello-Sampayo T. Barbela, a bread wheat cultivar tolerant to aluminum Brotéria

Restricted access

closely related bread wheat using microsatellite markers. Theor Appl Genet 91: 1001–1007. Röder M.S. Detection of genetic diversity in closely related bread wheat using microsatellite

Restricted access

. Ehdaie , B. , Whitkus , R.W. , Waines , J.G. 2003 . Root biomass, water-use efficiency and perfomance of wheat-rye translocations of chromosomes 1 and 2 in spring bread wheat ‘Pavon’ . Crop Science 43 : 710 – 717

Restricted access

. Agronomy research magazine of Algeria . (INRAA) 1 : 132 . Ozlem , A.S. , Begum , T. 2018 . Characterization of some bread wheat genotypes using molecular markers for

Restricted access

Norin 10 and Tom Thumb dwarfing genes in British, Mexican, Indian and other hexaploid bread wheat varieties. Euphytica 30: 355–361. Rao M.V. A classification of the Norin 10 and

Restricted access

carrying genes for effective resistance to leaf rust in bread wheat. Plant Genet. Resour. 5 :100–103. Börner A. The use of simple sequence repeat (SSR) markers to identify and map

Restricted access