scholarly journals Winter barley variety trials in West Virginia, 1949-1955

1956 ◽  
Author(s):  
Collins Veatch
Keyword(s):  
West Virginia ◽  
Winter Barley ◽  
Barley Variety ◽  
Variety Trials

Selection for developmental responses in winter barley

1976 ◽  
Vol 87 (3) ◽  
pp. 591-598 ◽  
Author(s):  
G. Jenkins ◽  
E. J. M. Kirby ◽  
A. P. Roffey
Keyword(s):  
Winter Barley ◽  
Barley Variety ◽  
High Rate ◽  
Vernalization Requirement ◽  
Developmental Study ◽  
Artificial Freezing ◽  
Developmental Responses ◽  
Segregating Population ◽  
Short Days ◽  
Made In

SummaryA winter barley variety, from the USSR, 13031, lacking vernalization requirement but sensitive to short days and more frost resistant than varieties now commercially grown in Britain, was hybridized with Shimabara, a Japanese variety which requires vernalization but is less sensitive to short days and more susceptible to frost than 13031. The resulting segregating population was then selected under short days and non-vernalizing conditions and in artificial freezing tests, in order to isolate recombinant lines.Five lines derived in this way, together with the parents and the standard winter barley variety, Maris Otter, were included in a detailed developmental study made in a glasshouse under cool, short days.Four of the lines had very similar developmental characters, namely few leaves and a high rate but short duration of spikelet initiation. Developmentally these selections resembled the parent Shimabara more closely than 13031 but the rate of spikelet initiation was faster than that of either parent and the duration of spikelet initiation was shorter. The fifth selection also resembled Shimabara more closely than 13031 but had more leaves and a lower rate and longer duration of spikelet initiation than the other selections. This selection was found to have a strong vernalization requirement.One selection closely resembled 13031 in its frost resistance but had low short-day sensitivity and no detectable vernalization requirement. The complementary characters of the two parents were therefore recombined in this line.Vernalization had little effect on the development of any of the genotypes under cool, short days in a glasshouse.

scholarly journals Severity of Powdery Mildew on Spring Barley in the Czech Republicin 1971–2000

2011 ◽  
Vol 39 (No. 2) ◽  
pp. 39-51 ◽  
Author(s):  
A. Dreiseitl ◽  
D. Jurečka
Keyword(s):  
Powdery Mildew ◽  
Disease Severity ◽  
Spring Barley ◽  
Winter Barley ◽  
Inoculum Potential ◽  
Variety Trials ◽  
Resistant Varieties ◽  
High Disease Severity

Results of scoring the resistance to powdery mildew of 127 spring barley varieties that were gradually included in 923 official variety trials were analysed. The resistance of a variety was defined by the level of infection by the disease. Therefore, the data can be used to assess the disease severity. Several characteristics indicative of disease severity were considered, including the disease severity coefficient (= average infection of non-resistant varieties in trials with a high disease severity/the proportion of such trials). The value of the coefficient is inversely proportional to disease severity. According to the coefficient the highest powdery mildew severity occurred in 1988, 1972 and 1995, and during the period 1971–1975. This is confirmed by results of some other characteristics, while that of further characteristics point to 1985–1989 as the period with the highest disease severity. The lowest disease severity was found in 1982 and 1977 and for the period 1976–1980. High disease severity was found every year in 9–75% (on average in 33%) of the trials. The characteristics of disease severity as well as the effects of widely grown and susceptible varieties of winter barley on the increase in inoculum potential and, as a consequence, on faster adaptation of the pathogen to resistance of spring barley, especially that conditioned by gene Mla13, are discussed.  

Interplot Competition in Oats and Barley Variety Trials

1989 ◽  
Vol 39 (2) ◽  
pp. 159-168 ◽  
Author(s):  
Are H. Aastveit ◽  
Trond Buraas ◽  
Magne Gullord
Keyword(s):  
Barley Variety ◽  
Variety Trials

scholarly journals The new middle-maturing winter barley variety ‘Marusya’

2021 ◽  
pp. 46-50
Author(s):  
E. G. Filippov ◽  
A. A. Dontsova ◽  
D. P. Dontsov ◽  
I. M. Zasypkina
Keyword(s):  
The State ◽  
Winter Barley ◽  
Barley Variety ◽  
Federal State ◽  
Standard Variety ◽  
North Caucasus ◽  
New Variety ◽  
Potential Productivity ◽  
High Level ◽  
Variety Testing

Last years the Rostov region has faced a significant climate continentality increase during the growing season of winter crops. This factor makes necessary to develop new varieties of intensive winter barley with a high level of ecological adaptability, resistance to lodging and leaf diseases, with a high level of potential productivity. The purpose of the current study was to develop a new highly productive, stress-resistant winter barley variety with a high level of adaptability and to evaluate it according to economically valuable traits. The current paper has presented the agrobiological characteristics of the winter barley variety ‘Marusya’, the originator and patent holder of which is the Federal State Budgetary Scientific Institution “Agrarian Research Center “Donskoy”. The research was carried out from 2018 to 2020 in the fields of experimental crop rotation of the department of barley breeding and seed production of the FSBSI “ARC “Donskoy”. The forecrop was peas. The accounting plot area was 10 m², the number of repetitions was 6. The winter barley variety ‘Timofey’ was used as a standard variety. The species was parallelum. The type of development was facultative. Over the years of study in the Competitive Variety Testing of the FSBSI “ARC “Donskoy” (2018–2020), the variety produced from 8.0 to 11.2 t/ha, that exceeded the standard variety ‘Timofey’ on 0.5–1.5 t/ha. Since 2020, the State Commission for Variety Testing of Agricultural Crops decided to include the variety ‘Marusya’ in the State List of Breeding Achievements in the North Caucasus region. The variety is being studied in the Central Blackearth and Lower Volga regions of the Russian Federation. The consistently high productivity of the new variety is achieved due to the large grain and higher indicators of the yield structure elements and resistance to diseases in comparison with those of the standard variety ‘Timofey’

scholarly journals Frequency of powdery mildew resistances in winter barley cultivars tested in domestic variety trials

2011 ◽  
Vol 59 (3) ◽  
pp. 23-28 ◽  
Author(s):  
Antonín Dreiseitl
Keyword(s):  
Powdery Mildew ◽  
Spring Barley ◽  
Winter Barley ◽  
Variety Trials ◽  
Barley Cultivars ◽  
Powdery Mildew Pathogen ◽  
Domestic Variety ◽  
Domestic Breeding

In 2006–2010, resistance to the powdery mildew pathogen was studied in 225 winter barley cultivars of which 86 two-rowed and 139 six-rowed. The examined set included 59 cultivars tested in the official variety trials and 166 cultivars in variety trials conducted by domestic breeding stations in that period. Thirteen known resistances were identified (Ar, Bw, Dr2, Ha, HH, IM9, La, Ly, Ra, Ru, Sp, St and We). No resistance was found in one cultivar only. The most frequent resistance was Ra detected in 114 cultivars (= 50.7%). The resistance Bw was found in 54 cultivars (24.0%). Resistances typical for spring barley cultivars (Ly, Sp, Ru and We) were also frequent (4.0% to 23.6%). Unknown resistances were found in 20 cultivars, in nine of which they were effective to all used pathotypes of the pathogen. Thirty-six cultivars (16.0%) exhibited heterogeneity in the examined trait, i.e. they were mostly composed of lines with different resistances. Research on cultivars possessing unknown resistances continues.

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