Cilt 22, Sayı 3, Sayfalar 398 - 407 2016-08-25

Biological Control of Cotton Seedling Diseases by Fluorescent Pseudomonas spp.

Oktay ERDOĞAN [1] , Yüksel BÖLEK [2] , Mehmet Erhan Göre [3]

530 276

Seedling root rot seen in many plants including cotton is an important disease that leads to large economic losses.
Human health and the environment are negatively affected as a result of using fungicides for disease control. The goal
of this study was to determine the effects of fluorescent Pseudomonas (FP) bacteria against seedling root rot pathogens
both in vitro and in vivo conditions. 59 FP isolates obtained from the rhizosphere of cotton and weeds on the field were
tested by dual-culture assays in vitro. After applying effective FP isolates on the seeds, antagonistic effects against the
seedling root rot pathogens were investigated in a climate chamber. Resulting of dual-culture tests, FP40 had maximum
effect (49.60%) against Rhizoctonia solani. Besides, FP51, FP48 and FP35 had highest impact as 43.80%, 43.50%, and
43.10% against Fusarium sp., respectively. Pythium deliense was mostly effected by FP57 (59.80%), FP52 (57.80%)
and FP56 (57.60%). While isolates FP35 and FP57 provided protection over 70% against all three pathogens in a climate
chamber, they were as effective as commercial fungicides (Vitavax and Maxim) and biofungicide (Subtilex) and shown
promising results.

Fide kök çürüklüğü pamuk dahil pek çok bitkide görülen ve ekonomik kayıplara yol açan önemli bir hastalıktır. Fungisitler hastalığa karşı mücadelede kullanılması sonucu, çevre ve insan sağlığı olumsuz yönde etkilenmektedir. Çalışmada, fluoresan pseudomonas (FP) bakterilerinin fide kök çürüklüğü hastalık etmenlerine karşı in-vitro ve in-vivo koşullarda1. IntroductionCrop losses in agricultural production occurred in 9.1% by disease, 11.2% by pests and 14.7% by the weeds in the world. This amount is equivalent to one-third of the world agricultural production potential. Annual monetary value of these losses is about 550 billion dollars and the costs incurred to protect the product are about 455 billion dollars annually (Agrios 2005). The diseases caused yield losses with average 3.1% per year and 27% reduction in fiber production for 10 years study in the USA (Devay 2001). Rhizoctonia spp., Pythium spp. and Thielaviopsis spp. are seen as the most common and destructive damping off disease agents have been reported in the world (Agrios 1998).These pathogens are seen in many plants including cotton and causes large economic losses. Cotton seedling root rot inducing factors can cause the seedling root and root collar to decay and let them to die especially in infected and heavy soils during wet and cool seasons, thus leading major destruction in cotton fields and sometimes requiring replanting of the field (Agrios 2005). Despite their promise in prevention of the damping off diseases, fungicides have some problems because of phytotoxicity, environmental pollution and human health effects (Ramamoorthy et al 2002). Moreover, when disease effect is in the level of requiring replanting, there will be space in the field due to less seedlings and the farmers generally use more seeds than necessary to compensate for this risk. In replanting, the expenses for seed, seedbed preparation and soil cultivation cost increase and the yield decreases because of late planting
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Dergi Bölümü Makaleler

Yazar: Oktay ERDOĞAN

Yazar: Yüksel BÖLEK

Yazar: Mehmet Erhan Göre

Bibtex @ { ankutbd257728, journal = {Tarım Bilimleri Dergisi}, issn = {1300-7580}, address = {Ankara Üniversitesi}, year = {2016}, volume = {22}, pages = {398 - 407}, doi = {}, title = {Biological Control of Cotton Seedling Diseases by Fluorescent Pseudomonas spp.}, language = {en}, key = {cite}, author = {BÖLEK, Yüksel and ERDOĞAN, Oktay and Göre, Mehmet Erhan} }
APA ERDOĞAN, O , BÖLEK, Y , Göre, M . (2016). Biological Control of Cotton Seedling Diseases by Fluorescent Pseudomonas spp.. Tarım Bilimleri Dergisi, 22 (3), 398-407. Retrieved from
MLA ERDOĞAN, O , BÖLEK, Y , Göre, M . "Biological Control of Cotton Seedling Diseases by Fluorescent Pseudomonas spp.". Tarım Bilimleri Dergisi 22 (2016): 398-407 <>
Chicago ERDOĞAN, O , BÖLEK, Y , Göre, M . "Biological Control of Cotton Seedling Diseases by Fluorescent Pseudomonas spp.". Tarım Bilimleri Dergisi 22 (2016): 398-407
RIS TY - JOUR T1 - Biological Control of Cotton Seedling Diseases by Fluorescent Pseudomonas spp. AU - Oktay ERDOĞAN , Yüksel BÖLEK , Mehmet Erhan Göre Y1 - 2016 PY - 2016 N1 - DO - T2 - Tarım Bilimleri Dergisi JF - Journal JO - JOR SP - 398 EP - 407 VL - 22 IS - 3 SN - 1300-7580- M3 - UR - Y2 - 2017 ER -
EndNote %0 Tarım Bilimleri Dergisi Biological Control of Cotton Seedling Diseases by Fluorescent Pseudomonas spp. %A Oktay ERDOĞAN , Yüksel BÖLEK , Mehmet Erhan Göre %T Biological Control of Cotton Seedling Diseases by Fluorescent Pseudomonas spp. %D 2016 %J Tarım Bilimleri Dergisi %P 1300-7580- %V 22 %N 3 %R %U