State Stende Cereal Breeding Institute Dizzemes

nov., Latvia

State Stende Cereal Breeding Institute Dizzemes

nov., Latvia
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Bleidere M.,State Stende Cereal Breeding Institute Dizzemes | Gaile Z.,Latvia University of Agriculture
Proceedings of the Latvian Academy of Sciences, Section B: Natural, Exact, and Applied Sciences | Year: 2012

Spring barley (Hordeum vulgare L.) traditionally has been a major cereal crop for animal feed especially in Northern areas and also in Latvia. It is complicated to define what the ideal feed barley should be, as the requirements widely differ not only for different species, but even for different age groups of the same species of animals. Therefore, the breeding of feed barley has been developing very slowly and building on the basis of agronomic and beer barley quality parameters. Targeted breeding of barley varieties for a definite application purpose of the grain is connected with selection according to different criteria. The present article shows that the feed quality of barley is influenced both by physical grain quality indicators (colour, grain weight and size, hull content, 1000 grain weight, volume weight and grain hardness) and by the chemical composition (carbohydrates, non-starch polysaccharides, amino acids, fibre, protein, fat, minerals and vitamins). On the basis of the information collected, a profile of a high quality feed barley variety for different groups of animals is defined.


Bremanis G.,State Stende Cereal Breeding Institute Dizzemes | Maecka S.,State Stende Cereal Breeding Institute Dizzemes
Proceedings of the Latvian Academy of Sciences, Section B: Natural, Exact, and Applied Sciences | Year: 2012

The effect of mother liquors obtained in one production stage of the popular medicinal preparation Mildronate on yield and quality of winter rape (Brassica napus L.) grown for biofuel was tested. The mother liquors contain quaterine-type compounds, which are known to stimulate growth of lupines. In the three-year study, Mildronate mother liquors were sprayed on winter rape. The yield and fat content of rape was determined. Mother liquor contains small amounts of methyl acrylate. However, this compound was not found in rapeseed, stalks and soil. Mother liquors spray had a positive effect on soil microorganisms. In the period from initiation of flowering to maximum flowering stage, spraying with mother liquors, as well as with quaterine-M and isopropanol (basic substance of mother liquor), in most cases had a low (around 10%) positive effect on rape yield and a very small impact on the fat content in rape grain. The effects differed among years, suggesting interaction with weather conditions. The determined optimal mother liquors dosages were quite wide, from 0.4 to 10 L ha -1.


Nakurte I.,University of Latvia | Kirhnere I.,State Priekuli Plant Breeding Institute | Namniece J.,University of Latvia | Saleniece K.,University of Latvia | And 6 more authors.
Journal of Cereal Science | Year: 2013

We report the first discovery of lunasin in oats (Avena sativa L). Lunasin is a novel cancer preventive, anti-inflammatory and cholesterol-reducing peptide originally isolated from soy and later found in cereals (barley, rye, wheat, triticale). Lunasin was detected in oats using LC-MS/MS analysis. The chromatograms and mass spectra of lunasin isolated from five oat genotypes were compared with those of the synthetic lunasin peptide. We measured the lunasin content in harvests of two years and found that all tested oat genotypes contained the lunasin peptide. However, we observed genotype-related fluctuations in the lunasin content. Notably, the middle early oat variety 'Ivory' contained the highest and the most stable lunasin level at 0.197 ± 0.01 mg per g of grain in year 2010 and 0.195 ± 0.009 mg per g of grain in 2011. We also characterized the selected oat genotypes by measuring the contents of protein, β-glucans, fat, starch and moisture in the grains. However, we did not find correlation between lunasin and protein, and β-glucan content. Lunasin isolated from oat showed similar to the synthetic lunasin antioxidant effects. The detection of lunasin complements a list of bioactive compounds present in oats and strengthens recommendations to use oat products. © 2013 Elsevier Ltd.


Strazdina V.,State Stende Cereal Breeding Institute Dizzemes
Proceedings of the Latvian Academy of Sciences, Section B: Natural, Exact, and Applied Sciences | Year: 2012

The newest wheat varieties developed at the State Stende Cereal Breeding Institute are winter wheat 'Fredis' and spring wheat 'Uffo' and 'Robijs'. The winter wheat variety 'Fredis' ('Donskaya Polukarlikovaya'/'Abe'//'Lowrin 24') was developed from 1986 to 2002. The variety has good winter hardiness (7-9 points), earliness (growing period 212-215 days from 1 January), and average yield is 6.0 t ha -1. Grain quality is suitable mostly for food. The variety was registered in the Latvian Plant Catalogue in 2007 and in the Estonian Plant Catalogue in 2011. In the period from 1992 to 2007, the new spring wheat variety 'Uffo' (Sigma/Eta) was created. Variety 'Uffo' is a mid-early variety, with yield potential 6-8 t ha -1, and moderate lodging resistance (5-7 points). Grain quality is suitable for food and feed. The variety 'Uffo' was included in the Latvian Plant Catalogue in 2008 and in the Estonian Plant Catalogue in 2009. The spring wheat variety 'Robijs', obtained from the crossing combinations Dragon/Anninia//Fasan//Fasan by anther culture, was developed at the State Stende Cereal Breeding Institute in collaboration with the Institute of Biology Latvian University from 2000 to 2007. The variety is a middle-early wheat, and is characteriszed by high yield potential (6-8 t ha -1), moderate resistance to lodging (7 points). It has moderate resistance to powdery mildew (3-5 point) and brown rust (10-25%). The grain quality is suitable for food. The variety was included in the Latvian Plant Catalogue in 2011.


Berga L.,State Stende Cereal Breeding Institute Dizzemes | Zute S.,State Stende Cereal Breeding Institute Dizzemes
Proceedings of the Latvian Academy of Sciences, Section B: Natural, Exact, and Applied Sciences | Year: 2012

Oat (Avena sativa L.) is recognised as a healthy food in the world. Oat contains significant amounts of fat-soluble vitamin E (α-tocopherol), a substance with high antioxidant activity. The main tasks of this study were to characterise the variability of α-tocopherol concentration of oat varieties and breeding lines bred in Latvia and foreign countries. Field trials were carried out at the State Stende Cereal Breeding Institute in 2007 and 2008. Sixty four oat genotypes (52 husked and 12 naked) were tested for α-tocopherol using high-performance liquid-chromatography. The obtained results showed a wide range of α-tocopherol concentration among both husked and naked oat genotypes. The α-tocopherol concentration in husked oat varieties and lines varied from 3.2 to 8.4 mg kg -1 and for naked oat from 5.5 to 8.8 mg kg -1. The wide range of α-tocopherol concentration in oat grown in Latvia showed that there is wide choice of material for breeding programmes and that further research should be carried out in future.

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