المكافحة الأحيائية لمرض موت بادرات الطماطة المتسبب عن الفطر Pythium aphanidermatum
Other Title(s)
Biological control of tomato seedlings damping off caused by Pythium aphanidermatum
Joint Authors
عدنان عبد الله عيسى
ناهدة مهدي صالح
Source
Issue
Vol. 43, Issue 5 (31 Oct. 2012), pp.52-62, 11 p.
Publisher
University of Baghdad College of Agriculture
Publication Date
2012-10-31
Country of Publication
Iraq
No. of Pages
11
Main Subjects
Abstract EN
This study was conducted to evaluate the activity of Saccharomyces cerevesiae and Kluyveromyces marxianus against Pythium aphanidermatum , causative agents of tomato seedling damping – off .
P.
aphanidermatum was isolated from infected seedling .
The activity of S.
cerevesiae and K.
marxianus against P.
aphanidermatum was tested on potato dextrose agar (PDA) in petridishes .
A line of yeast growth on one side and a disk of 0.5cm from new growth of fungal culture was placed on the other side .
The effect of the yeast in controlling seedling damping off disease in pots under greenhouse condition was carried out by adding 50 ml of yeast suspention at 21 x 08 cfu/ ml of S.
cerevesiae and 3 x 106 cfu/ ml of K.
marxianus befor 6 days of cultivation and the same volum during cultivation , Tomato seeds were soaked in yeast suspention and sowing in soil contaminted with P.
aphanidermatum .
The activity of S.
cerevesiae and K.
marxianus against P.
aphanidermatum attained to 36.39 % and 32.8 % on PDA after 3 days of incubation respectively .
S.
cerevesiae at 0.1 ; 0.2 ; 0.3 ; 0.4 and 0.5 g / L .
and K.
marxianus at 9 x 105 cfu/ ml inhibited totaly fungal growth .
The yeast filtrate induced a reduction in fungal biomass weight , 41.3 and 60,1 mg for S.
cerevesiae and K.
marxianus respectively compared with 76.3 mg for control .
It was found that soil and seed treatments with K.
marxianus suspention at 31 x 06 cfu/ ml and 2 x 104 cfu/ seed were more effective than other treatment in reduction of pre and post emergence tomato seedling damping off , that were 0.0 , 0.0 compared with 50 and 16.67 % in control treatment respectively unde greenhouse condition assouated with increasing of peroxidase activity .
American Psychological Association (APA)
عدنان عبد الله عيسى وناهدة مهدي صالح. 2012. المكافحة الأحيائية لمرض موت بادرات الطماطة المتسبب عن الفطر Pythium aphanidermatum. مجلة العلوم الزراعية العراقية،مج. 43، ع. 5، ص ص. 52-62.
https://search.emarefa.net/detail/BIM-885473
Modern Language Association (MLA)
عدنان عبد الله عيسى وناهدة مهدي صالح. المكافحة الأحيائية لمرض موت بادرات الطماطة المتسبب عن الفطر Pythium aphanidermatum. مجلة العلوم الزراعية العراقية مج. 43، ع. 5 (2012)، ص ص. 52-62.
https://search.emarefa.net/detail/BIM-885473
American Medical Association (AMA)
عدنان عبد الله عيسى وناهدة مهدي صالح. المكافحة الأحيائية لمرض موت بادرات الطماطة المتسبب عن الفطر Pythium aphanidermatum. مجلة العلوم الزراعية العراقية. 2012. مج. 43، ع. 5، ص ص. 52-62.
https://search.emarefa.net/detail/BIM-885473
Data Type
Journal Articles
Language
Arabic
Notes
يتضمن مراجع ببليوجرافية : ص. 60-62
Record ID
BIM-885473