Diallel analysis of partial resistance to powdery mildew caused by Erysiphe graminis f. sp. hordei in spring barley (Hordeum vulgare L.)

Euphytica ◽  
1993 ◽  
Vol 65 (1) ◽  
pp. 15-21 ◽  
Author(s):  
A.G. Balkema-Boomstra ◽  
H.D. Mastebroek
Keyword(s):  
Hordeum Vulgare ◽  
Powdery Mildew ◽  
Partial Resistance ◽  
Spring Barley ◽  
Diallel Analysis ◽  
Erysiphe Graminis ◽  
Hordeum Vulgare L

AC Stephen barley

1993 ◽  
Vol 73 (4) ◽  
pp. 1079-1081
Author(s):  
K. M. Ho ◽  
W. L. Seaman ◽  
T. M. Choo ◽  
R. A. Martin
Keyword(s):  
Hordeum Vulgare ◽  
Powdery Mildew ◽  
Key Words ◽  
Erysiphe Graminis ◽  
Test Weight ◽  
High Yield ◽  
Hordeum Vulgare L ◽  
Eastern Canada ◽  
Good Test ◽  
Barley Breeding

AC Stephen is a six-rowed spring feed barley (Hordeum vulgare L.) cultivar developed by the Eastern Canada Barley Breeding Group, Agriculture Canada, and is adapted to Eastern Canada. It was selected from an OAC Kippen/Léger cross. AC Stephen has high yield, good test weight and is resistant to powdery mildew (Erysiphe graminis DC. ex Merat. f. sp. hordei Em. Marchal). Key words: Hordeum vulgare L., six-rowed barley, feed barley, high yield, powdery mildew

scholarly journals Identity of barley powdery mildew resistances Bw and Ru2

2012 ◽  
Vol 48 (No. 4) ◽  
pp. 185-188 ◽  
Author(s):  
A. Dreiseitl
Keyword(s):  
Hordeum Vulgare ◽  
Powdery Mildew ◽  
Spring Barley ◽  
Blumeria Graminis ◽  
Winter Barley ◽  
Barley Cultivar ◽  
Hordeum Vulgare L ◽  
Barley Line ◽  
Barley Powdery Mildew ◽  
The Difference

A large number of resistances to powdery mildew (Blumeria graminis f.sp. hordei) and their combinations are known in barley (Hordeum vulgare L.). A similarity of resistance spectra between cultivars carrying the resistance Bw, designated for the winter barley cultivar Borwina, and the near-isogenic spring barley line P15, which carries the resistance Ru2, derived from the landrace Rupee, was found. The objective of this study was to test the difference between resistances Bw and Ru2. Six cultivars were tested, four with Bw and two with Ru2. Testing with 40 isolates showed identical reaction spectra between both groups. Testing of the cultivar Kompolti 4 (Bw) and line P15 (Ru2) with 300 isolates confirmed this result. Thus, the resistances currently designated Bw and Ru2 can be regarded as identical, and are determined by the gene Ml(Ru2). Both Bw and Ru2 should be designated by the earlier code, Ru2.

scholarly journals Identification of the Combining Ability of Grain Yield and Its Components in Hybrid Barley (Hordeum Vulgare L.) Populations Based on Top Cross Analysis

2021 ◽  
Author(s):  
Gulmira Akhmedova ◽  
Laura Tokhetova ◽  
Umirzakov Serikbai ◽  
Ainur Demesinova ◽  
Ibadulla Tautenov ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Combining Ability ◽  
Spring Barley ◽  
Practical Interest ◽  
Diallel Analysis ◽  
Climatic Conditions ◽  
Aral Sea ◽  
Hordeum Vulgare L ◽  
Dominant Genes

Abstract The top cross method for assessing combining ability more economical and less laborious compared to diallel analysis, and also allows the breeder to obtain quite valuable information about the inbred material. In this research, the determination of the general (GCA) and specific (SCA) combining ability of barley (Hordeum vulgare L.) hybrids in two regions of Kazakhstan contrasting in soil and climatic conditions, the role of additive and non-additive genes in the determination of the traits under study has been revealed. It is concluded that the predominance of additive gene interactions in the control of the traits understudying the conditions of the Aral Sea region indicates the possibility of effective selection already in the F2 generation, and in the piedmont zone of the Almaty region, due to the high determination of these traits by dominant genes, it is necessary to differentiate the populations of hybrids, starting from the first generation and further selection shall be carried out in several cycles until the achievement of homozygosity of loci carrying dominant genes. Consequently, the genetic contribution of the additive and non-additive effects of genes to the determination and inheritance of the studied traits significantly depends on the conditions of growing the genotypes of spring barley. Of greatest practical interest are the varieties Rihane, WI2291/Roho/WI2269 from the International Center ICARDA and the variety-tester Odessa 100 (Odessa Selection and Genetic Institute, Ukraine) with high GCA and SCA effects, little dependent on growing conditions, which are recommended to be used as reliable donors in breeding programs.

Effects of fungicide seed dressings and fungicide-treated fertiliser on the severity of leaf diseases and yield of barley in Western Australia

1989 ◽  
Vol 29 (4) ◽  
pp. 565 ◽  
Author(s):  
TN Khan ◽  
KJ Young
Keyword(s):  
Hordeum Vulgare ◽  
Powdery Mildew ◽  
Disease Control ◽  
Western Australia ◽  
Erysiphe Graminis ◽  
Great Promise ◽  
Rhynchosporium Secalis ◽  
Hordeum Vulgare L ◽  
Foliar Diseases ◽  
Duration Of Disease

Standard and increased rates of seed dressings with triadimenol, flutriafol and experimental formulations of flutriafol, and triadimefon and flutriafol coated on double superphosphate and drilled at sowing were assessed for control of leaf diseases of barley (Hordeum vulgare L. cv. Stirling). Scald, (Rhynchosporium secalis (Oud.) Davis), powdery mildew (Erysiphe graminis f. sp. hordei March.) and Drechslera verticillata (O'Gara) Shoem. appeared in various experiments. Fungicide-coated fertilisers provided the most disease control for the longest duration, triadimefon coated fertiliser increasing yield by up to 30%. Fungicide-treated fertilisers therefore show great promise in increasing the level and duration of disease control as well as the yield of barley where foliar diseases are known to be a problem.

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