Genetic resistance to cereal cyst nematode Heterodera avenae Woll. in wild oat Avena sterilis I. 376

Euphytica ◽  
1984 ◽  
Vol 33 (1) ◽  
pp. 27-32 ◽  
Author(s):  
G. Clamot ◽  
R. Rivoal
1970 ◽  
Vol 10 (44) ◽  
pp. 360 ◽  
Author(s):  
T/H Brown ◽  
JW Meagher

Two hundred and seventy cereal species and cultivars (wheat, barley, oats, rye, and Triticales), were field tested for resistance to the cereal cyst nematode (Heterodera avenae Woll.) in Victoria. Tests were made in the Wimmera District at Natimuk (1952-1954) and in the Mallee District at Walpeup (1953), and Sea Lake (1966-1969). Some species and cultivars were tested at all sites, but most were tested at one site only. All wheats tested were susceptible or very susceptible, and all Triticales were susceptible. Two barley cultivars, Morocco and Marocaine 079 were resistant, and two others were moderately resistant. The oat species, Avena sterilis and A. strigosa were resistant and fifteen cultivars of A. sativa were moderately resistant. Rye, CV. South Australian, possesses a high degree of resistance in contrast to European ryes.


1969 ◽  
Vol 9 (39) ◽  
pp. 453 ◽  
Author(s):  
RH Brown

Ten cereal cyst nematode (Heterodera avenae Woll.) populations from the Victorian Mallee and Wimmera districts, were tested for their variation in pathogenicity, using a selected range of indicator varieties. Of the oats used, Avena sterilis and A. strigosa were resistant to all populations, while A. abyssinica and CV. Sun II were both susceptible. None of the cultivars of barley or wheat was resistant ; the spring wheat CV. Loros was very susceptible. Rye CV. South Australian was resistant to all populations. The results presented indicate that only one biotype of H. avenae is present in Victoria, and that it is unlike any of those known to occur in Europe.


1974 ◽  
Vol 14 (68) ◽  
pp. 394 ◽  
Author(s):  
RH Brown

Seven populations of the cereal cyst nematode (Heterodera avenae Woll.) from the Mallee and Wimmera districts of Victoria, were tested for their variation in pathogenicity, using a wide range of cereal species and cultivars. Avena sterilis (Cc4658), and the barleys Morocco (C13902), Marocaine 079 (C18334), and Martin 403-2 were resistant to all populations, whereas all the other cereals tested were susceptible. The three wheats, Loros (AUS11577), Psathias (AUS881), and spring wheat (AUS10894), supported fewer cysts than the susceptible standard. They may, therefore, have some potential as parents in a wheat resistance breeding program, in the absence of better sources of resistance. The results confirm the presence of only one biotype of H. avenae in Victoria, and although it is unlike any of the five European biotypes, it is similar to that from Rajasthan, India.


1981 ◽  
Vol 21 (112) ◽  
pp. 516 ◽  
Author(s):  
AD Rovira ◽  
PG Brisbane ◽  
A Simon ◽  
DG Whitehead ◽  
RL Correll

Significant yield responses of up to 0.9 t/ha were obtained with the nematicides aldicarb and dibromochloropropane in seven of eleven field trials with the wheat variety, Condor. Both nematicides reduced the numbers of white cysts of Heterodera avenae on the roots of wheat. With aldicarb the increase in wheat yields varied directly as the decrease in white cysts: dibromochloropropane gave similar increases in yield as aldicarb with a greater reduction in cyst numbers. There was no yield increase with either nematicide when cereal cyst nematode was not present. An analysis of covariance indicated that over all the sites 64% of the increase in yield due to aldicarb could be explained in terms of cysts of cereal cyst nematode.


Plant Disease ◽  
2015 ◽  
Vol 99 (3) ◽  
pp. 376-386 ◽  
Author(s):  
Richard W. Smiley ◽  
Guiping Yan

The cereal cyst nematode Heterodera avenae suppresses wheat production in the western United States. A second species of cereal cyst nematode, H. filipjevi, was identified in eastern Oregon during 2008. This paper reports the discovery of H. filipjevi–infested fields in eastern Washington, thereby extending the known distribution of H. filipjevi in the United States. The identity of H. filipjevi was determined and confirmed by species-specific polymerase chain reaction (PCR), PCR-restriction fragment length polymorphism (RFLP), sequencing, and cyst morphology. Soils that were collected from naturally infested fields in Washington were used to compare the virulence of H. avenae and H. filipjevi on six spring wheat cultivars under controlled-environment conditions. Noninfested soils from nearby fields were used as controls. Cultivars Ouyen and WB Rockland were resistant to H. avenae and susceptible to H. filipjevi. Cultivars Sönmez and SY Steelhead were resistant to H. filipjevi and susceptible to H. avenae. Cultivars Louise and WB 936 were susceptible to both species. The resistance of SY Steelhead to ‘H. avenae’, reported in a previous paper, is corrected as resistance to H. filipjevi due to an earlier misidentification of H. filipjevi. Management guidelines that include crop rotations and resistant cultivars are presented. Discovery of additional infestations of H. filipjevi are anticipated when DNA-based tests become used routinely in commercial diagnostic laboratories.


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