TESTING THE SENSITIVITY OF SOME TOMATOES VARIETIES TO INFECTION WITH THE PATHOGEN ALTERNARIA ALTERNATA KEISSLER , AND THE EFFECT OF SODIUM BICARBONATE IN FUNGAL GROWTH IN VITRO
Saad Aldean, A., Nafaa, W., Abu Alfadhel, T. (2012). TESTING THE SENSITIVITY OF SOME TOMATOES VARIETIES TO INFECTION WITH THE PATHOGEN ALTERNARIA ALTERNATA KEISSLER , AND THE EFFECT OF SODIUM BICARBONATE IN FUNGAL GROWTH IN VITRO. EKB Journal Management System, 3(9), 383-389. doi: 10.21608/jacb.2012.55003
A. Saad Aldean; W. Nafaa; Taiser Abu Alfadhel. "TESTING THE SENSITIVITY OF SOME TOMATOES VARIETIES TO INFECTION WITH THE PATHOGEN ALTERNARIA ALTERNATA KEISSLER , AND THE EFFECT OF SODIUM BICARBONATE IN FUNGAL GROWTH IN VITRO". EKB Journal Management System, 3, 9, 2012, 383-389. doi: 10.21608/jacb.2012.55003
Saad Aldean, A., Nafaa, W., Abu Alfadhel, T. (2012). 'TESTING THE SENSITIVITY OF SOME TOMATOES VARIETIES TO INFECTION WITH THE PATHOGEN ALTERNARIA ALTERNATA KEISSLER , AND THE EFFECT OF SODIUM BICARBONATE IN FUNGAL GROWTH IN VITRO', EKB Journal Management System, 3(9), pp. 383-389. doi: 10.21608/jacb.2012.55003
Saad Aldean, A., Nafaa, W., Abu Alfadhel, T. TESTING THE SENSITIVITY OF SOME TOMATOES VARIETIES TO INFECTION WITH THE PATHOGEN ALTERNARIA ALTERNATA KEISSLER , AND THE EFFECT OF SODIUM BICARBONATE IN FUNGAL GROWTH IN VITRO. EKB Journal Management System, 2012; 3(9): 383-389. doi: 10.21608/jacb.2012.55003

TESTING THE SENSITIVITY OF SOME TOMATOES VARIETIES TO INFECTION WITH THE PATHOGEN ALTERNARIA ALTERNATA KEISSLER , AND THE EFFECT OF SODIUM BICARBONATE IN FUNGAL GROWTH IN VITRO

Journal of Agricultural Chemistry and Biotechnology
Article 4, Volume 3, Issue 9, September 2012, Page 383-389  XML PDF (627.63 K)
Document Type: Original Article
DOI: 10.21608/jacb.2012.55003
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Authors
A. Saad Aldean1; W. Nafaa2; Taiser Abu Alfadhel3
1Qunietra countryside center for (S.A.R).
2Plant Protection Dept, Fac. of Agric. , Damascus University.
3Directorate of Plant Protection, Ministry of Agric. and Agric. Reform
Abstract
This study conducted in the laboratories of General Commission for Agriculture Research( GCSAR) /Doma ,in order to determinate the sensitivity of some tomato varieties (KAMAR#4.F1 , VT60788.F1 , Orient. F1, Super red , Alegro and Yarmok) -inputted  and cultivated - in southern region of Syria to infection of local isolates of the pathogen Alternaria alteranta  ( D 2.3- R6.1a – Q12.4) the major agent of blight and leaf spot of tomato . The results shows that the severity of infection ranged between 20.3% to 74% . The cultivars ranged from sensitive  to high resistance , there is no significant differences between inputted varieties with each other for the isolate Q12.4(with probability level 1%) , and there is a significant differences with the rest of varieties , on the other hand ,the results showed that the significant differences existed between the  inputted varieties for the isolates R 6.1a and D2.3 , and with the cultivated varieties did not show a significant differences between the isolates Q12.4 and R6.1a , but the significant differences existed for the isolate Q12.4 . the inhibitory effect of sodium bicarbonate (NaHCO3) in fungal linear growth tested for the fungus colonies in dishes by using a local isolate Q12.4 with four concentrations of NaHCo3 (0.25  %    , 0.50 %     ,   1 %  and  2 % )  W/V in addition to the control . The results showed that concentrations ( 0.25% , 0.50% ) had a catalytic effect for fungal  growth by 68.97 % and 44.87 % respectively , while ,indicate concentrations ( 1% , 2%) had an inhibitory effect to the growth by 18.17% and 100% respectively , with the presence of significant differences between themselves ,and with the control at the level of probability 1% .
Keywords
Tomato; Spot and leaf blight; Sensitivity of Varieties; sodium bicarbonate
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