Time filter

Source Type

Dolní Životice, Czech Republic

Pecio A.,Institute of Soil Science and Plant Cultivation | Bichonski A.,Plant Breeding Station
Polish Journal of Environmental Studies

The purpose of our study was to estimate the interaction between N fertilization and a plant protection program in oat production under different weather conditions. The studies were conducted at the Grabów Experimental Station of the Institute of Soil Science and Plant Cultivation in Puławy, Poland, in 2005-07. Oat was cultivated after winter triticale at 5 different levels of nitrogen fertilizers: 0, 30, 60, 90, and 120 kg N·ha-1 and under 3 plant protection strategies: A, B, and C were differentiated by biologically active ingredients. Grain yield, its components and quality were examined. The maximization of oat productivity and grain quality can be possible only under proper moisture conditions at a period from the beginning of the tilling stage (BBCH 21) to the end of panicle emergence (BBCH 59). The component deciding grain yield is a high number of grains per panicle. Both nitrogen fertilization and plant protection have a combined effect on oat grain, protein, and oil yields. Maximum grain yield increase equaled 2.26 t·ha-1, protein yield 282 kg·ha-1, and oil yield 73 kg·ha-1. Source

Clements J.,University of Western Australia | Galek R.,Wroclaw University of Environmental and Life Sciences | Kozak B.,Wroclaw University of Environmental and Life Sciences | Michalczyk D.J.,University of Warmia and Mazury | And 4 more authors.

The paper investigates seed coat characteristics (as a percentage of overall seed diameter) in Lupinus angustifolius L., a potential forage crop. In the study ten L. angustifolius genotypes, including three Polish cultivars, two Australian cultivars, three mutants originated from cv. 'Emir', and one Belarusian and one Australian breeding line were evaluated. The highest seed coat percentage was recorded in cultivars 'Sonet' and 'Emir'. The lowest seed coat thickness percentage (below 20%) was noted for breeding lines 11257-19, LAG24 and cultivar 'Zeus' (17.87%, 18.91% 19.60%, respectively). Despite having low seed weight, the Australian line no. 11257-19 was characterized by a desirable proportion of seed coat to the weight of seeds. In general, estimation of the correlation coefficient indicated a tendency that larger seeds had thinner coats. Scanning Electron Microscopy images showed low variation of seed coat sculpture and the top of seeds covered with a cuticle. Most of the studied genotypes were characterized by a cristatepapillate seed coat surface, formed by elongated polygonal cells. Only breeding line no. 11267-19 had a different shape of the cells building the surface layer of the coat. In order to illustrate genetic diversity among the genotypes tested, 24 ISSR primers were used. They generated a total of 161 polymorphic amplification products in 10 evaluated narrow-leaved lupin genotypes. © 2014 Clements et al. Source

Marik P.,Plant Breeding Station | Chrpova J.,Czech Republic Crop Research Institute | Prasil I.T.,Czech Republic Crop Research Institute | Sedlacek T.,Research Center Ltd
Czech Journal of Genetics and Plant Breeding

The Lancelot variety is a late to semi-late six-row feeding winter barley. It was developed at the Breeding Station, Lužany, SELGEN a.s. and registered in the Czech Republic in 2013. Lancelot has very good resistance to winter stresses in combination with resistance to BaMMV/BaYMV (Barley mild mosaic virus/Barley yellow mosaic virus) based on the gene rym4. © 2015, Czech Academy of Agricultural Sciences. All rights reserved. Source

Schubiger F.X.,ART Agroscope Reckenholz Tanikon | Baert J.,Belgium Institute for Agricultural and Fisheries Research | Bayle B.,DLF Trifolium | Bourdon P.,S.A. Carneau | And 22 more authors.

A set of 15 Italian (Lolium multiflorum), three hybrid (L. boucheanum) and 33 perennial ryegrass (L. perenne) cultivars were evaluated for their rust susceptibility in the field. The cultivars were grown in 2001, 2004 and 2007 at 29, 32 and 27 European sites, respectively. Rust incidence was scored during different growth cycles using a scale from one (no rust) to nine (susceptible). Crown rust (Puccinia coronata f. sp. lolii) was the most frequently observed rust species on Italian, hybrid and perennial ryegrass during all three experimental years. There was a highly significant difference in mean crown rust scores among Italian and perennial ryegrass cultivars, respectively, in each of the 3 years. The ranking of the cultivars was very consistent across the different sites within each year (with some exceptions), despite a significant interaction of cultivar response with sites. Moreover, the rank order correlations of mean cultivar rust scores were highly significant (r > 0.9) between the years. Stem rust (P. graminis f. sp. graminicola) occurred almost exclusively on perennial ryegrass. The cultivars showed significant variation in stem rust susceptibility. Rank order correlations of mean cultivar stem rust scores were mostly significant between sites within each year and highly significant between the years. The ranking of perennial ryegrass cultivars was different depending on whether crown or stem rust was scored. However, the rank order correlation between the mean disease scores of the cultivars for the two pathogens was low but still significant. At a particular site the assessment of crown or stem rust was in most cases very consistent over the period of experimentation. Therefore there was no evidence that rust resistance of an individual cultivar was overcome by the rust pathogen at a particular site over the 7 years of experimentation. © 2010 Springer Science+Business Media B.V. Source

Discover hidden collaborations