Expression level and correlation between yielding capacity, morphological characters and yield components in spring barley (Hordeum vulgare L.).
Journal Title: Plant varieties studying and protection - Year 2017, Vol 13, Issue 2
Abstract
Purpose. To reveal trends of expression level and relationship between yielding capacity, yield components and morphological characters of spring barley of two-row type in the Central Forest-Steppe zone of Ukraine. To identify new genetic sources for breeding. Methods. Field experiments, variance, correlation and cluster analyses. Results. During the investigation of 30 spring barley genotypes of various eco-geographical origin during the period of 2012–2014 with contrast meteorological parameters in the Central Forest-Steppe zone of Ukraine, it was found significant differences in expression level of morphological characters, yielding capacity and yield components. Samples with increased yielding capacity [‘Kozvan’ (‘Maiak’) (UKR), ‘AC Kings’ (CAN), ‘Siaivo’ (UKR), ‘RD-1’ (UKR), ‘Arhument’ (UKR), ‘B 1215’ (USA)] and some yield components have been identified. Based on the results of the cluster analysis, samples were grouped by the expression level of the studied characters. Some genotypes identified by yielding capacity were placed in different groups, that raise the possibility of systematic genetic improvement of plants when creating new source material and using them as parental components in crosses. Reliable correlations between yielding capacity and productive tillering (r = 0.67–072), yielding capacity and grain weight per plant (r = 0.73–0.77) were found. Grain weight per plant in all years reliably correlated with productive tillering (r = 0.62–0.80). In dry conditions of 2013, higher correlations between yielding capacity and other morphological characters and yield components were observed, in particular plant height (up to r = 0.52), length of upper internode (r = 0.52), grain weight of main spike (r = 0.39). Higher correlation between yielding capacity and 1000 kernel weight were noted in 2013 and 2014 as compared to 2012 against a background of decline in expression level of the character. Conclusions. Genotypes identified with high expression level of breeding valuable characters should be used as genetic sources when creating new germplasm. In order to increase formative process for productivity in the hybrid progeny, high-producing genotypes belonging to different clusters should be chosen as components in crossings. Under environments of the Central Forest-Steppe zone of Ukraine, productive tillering plays the most significant role in the formation of yield of two-rowed spring barley. However, for providing high level of productivity of plants and agrocoenosis as a whole, lateral stems should be developed simultaneously with the main stem and characterized by balance of grain number per spike and grain size.
Authors and Affiliations
O. A. Demydov, V. M. Hudzenko, Stanislav Vasylkivskyi, S. I. Melnyk, S. L. Ukrainets
Keywords
Related Articles
- EP ID EP254459
- DOI 10.21498/2518-1017.13.2.2017.105413
- Views 122
- Downloads 0
Realization of soybean biological potential as affected by agronomical practices under the conditions of the Forest-Steppe of Ukraine
Purpose. To identify the productivity formation peculiarities of certain soybean varieties as affected by organic fertilizer, plant growth regulators, and moisture retainer application under the conditions of the Forest-...
Suitability for processing of carrot (Daucus carota L.) roots of different varieties
The article presents summary of studying the efficiency of dry carrot production when growing in the conditions of Ukraine’s Forest-Steppe subject to a variety. A complex assessment has been completed for fresh and dried...
Yield and quality of pea grain as affected by agronomic practices under the conditions of the Forest-Steppe of Ukraine
Purpose. To identify the features of pea productivity as affected by application of organic and mineral fertilizers and plant growth regulators under the conditions of the Forest-Steppe of Ukraine. Methods. The objects...
Suitability of black currant (Ribes nigrum L.) as bred by NULES of Ukraine to machine harvesting of its berries
In the article the authors show outcome of three years observation of blackcurrant varieties bred by Study Horticulture Department NULES of Ukraine for their suitabi lity to machine harvesting. Blackcurrant is the most...
Output of continuous directed selection aimed at short stem development in Winter Rye (Secale cereale L.)
The article provides progress report on the barley of F3к-10029/Saratovske 4 height decreasing throughout 1974 to 2012 by way of selecting plants of the shortest stem. 38 years of selecting the shortest stem genotypes cu...