scholarly journals Occurrence and isolation of some Fusarium species associated with crown and root rot disease in some wheat fields of Duhok, IKR, Iraq

2018 ◽  
Vol 2ndInt.Conf.AGR (Special Issue) ◽  
pp. 331-342
Author(s):  
Bareen Sidqi Shareef Al-Tovi Al-Tovi ◽  
◽  
Raed Abduljabbar Haleem Haleem ◽  
Author(s):  
Said Ezrari ◽  
Rachid Lahlali ◽  
Nabil Radouane ◽  
Abdessalem Tahiri ◽  
Adil Asfers ◽  
...  

2015 ◽  
Vol 10 (1) ◽  
pp. 262-269 ◽  
Author(s):  
Mohsen Mohamed Elsharkawy ◽  
Tatsuya Hase ◽  
Yusuke Yagi ◽  
Masafumi Shimizu ◽  
Mitsuro Hyakumachi

2013 ◽  
Vol 47 (8) ◽  
pp. 944-953 ◽  
Author(s):  
Mehdi Nasr Esfahani ◽  
Abbas Nasehi ◽  
Pegah Rahmanshirazi ◽  
Hajar Ghadirian ◽  
Farnaz Abed Ashtiani

2009 ◽  
Vol 11 (02) ◽  
pp. 107-110
Author(s):  
Mahmoud M Hamdi ◽  
Naima Boughalleb ◽  
Neji Tarchoun ◽  
Lassaad Belbahri

1978 ◽  
Vol 29 (5) ◽  
pp. 975 ◽  
Author(s):  
AW Kellock ◽  
LL Stubbs ◽  
DG Parbery

Fusarium avenaceum (Corda ex. Fr.) Sacc. was detected for the first time on seed of strand medic (M. littoralis Rhode), lucerne (M. sativa L.), white clover (T. repens L.) and strawberry clover (T. fragiferum L.). The percentage of seed infected was 24% on medic seed, 2–3% on strawberry clover, 2–6% on white clover, and 10–14% on lucerne, compared with 1–42% on subterranean clover seed. The majority of infected seed lines were grown in the main seed-producing areas of Victoria. F. arthrosporioides Sherb., F. equiseti (Corda) Sacc., F, acuminatum Ellis & Everhart and F. culmorum (W. G. Sm.) Sacc. were isolated from subterranean clover seed for the first time, comprising between 1 and 8% of Fusarium spp. isolates, while F. oxysporum (Schlecht) and F. avenaceum comprised the remaining 55% and 35% of isolates respectively. In laboratory tests, isolates of F. avenaceum from each seed host were all strongly pathogenic on roots of subterranean clover, but there was no evidence of pathogenicity by other Fusarium spp. F. oxysporum had no effect on the severity of root rot disease either alone or in combination with F. avenaceum.


2005 ◽  
Vol 95 (12) ◽  
pp. 1438-1444 ◽  
Author(s):  
Shachaf Triky-Dotan ◽  
Uri Yermiyahu ◽  
Jaacov Katan ◽  
Abraham Gamliel

We studied the effect of water salinity on the incidence and severity of crown and root rot disease of tomato, as well as on the pathogen and on the plant's response to the pathogen. Irrigation with saline water significantly increased disease severity in tomato transplants inoculated with Fusarium oxysporum f. sp. radicis-lycopersici, and mineral fertilization further increased it. In one field experiment, disease incidence in plots irrigated with saline water (electrical conductivity [EC] = 3.2 ± 0.1 dS m-1) and in those irrigated with fresh water (EC = 0.4 ± 0.1 dS m-1) was 75 and 38%, respectively. Disease onset was earlier and yield was lower in plots irrigated with saline water. In a second field experiment, final disease incidence 250 days after planting, was 12% in plants which had been irrigated with saline water (EC = 4.6 ± 0.1 dS m-1) and 4% in those irrigated with fresh water (EC = 1.2 ± 0.1 dS m-1). Irrigation of tomato transplants with 20 mM NaCl did not inhibit plant development, but partial inhibition was observed at higher NaCl concentrations. Growth of the pathogen in culture or survival of conidia added to soil were not affected by saline water. Plants which were preirrigated with saline water were more severely diseased than those preirrigated with tap water. It was concluded that disease increases effected by saline water are associated with the latter's effect on plant response.


2013 ◽  
Vol 55 (0) ◽  
pp. 67-69
Author(s):  
Yutaka Iwamoto ◽  
Katsunari Matsuura ◽  
Ikuo Sato ◽  
Shigenobu Yoshida ◽  
Seiya Tsushima ◽  
...  

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