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Amaç: Bu araştırmanın amacı 2008-2009 yılları arasında pamuk üretiminin yoğun yapıldığı Akdeniz (Hatay) ve Ege (Söke/Aydın) Bölgelerindeki fide kök çürüklüğü (çökerten) hastalık etmenlerinin yaygınlık oranlarını saptamak ve bu hastalığa karşı denenen 4 farklı kimyasal preparatın hastalık üzerindeki etki oranlarını belirlemektir. Materyal ve Metot: Araştırmanın materyalini Bayer firmasının Hatay ve Söke/Aydın’da saptadığı Rhizoctonia, Alternaria, Fusarium ile bulaşık fidelerin bulunduğu alanlar, Carboxin+thiram (Vitavax 200 FF), Azoxystrobin+Metalaxyl – M+Fludioxonil FS (Dynasty CST 125 FS) 75+37,5+12,5 g/l, Metalaxyl – M+Fludioxonil (Maxim XL 035 FS) aktif maddeli ilaçlar ve Fiber Max çeşitlerine ait pamuk tohumları oluşturmaktadır. Çalışma tesadüf blokları deneme desenine göre dört tekerrürlü olarak gerçekleştirilmiştir. Bulgular: Çalışma bulgularına baktığımızda tarla denemelerinde fide kök çürüklüğü hastalığına karşı etkinlik açısından Hatay’da en iyi sonuç Abbott’a göre % 84.37 ile MAXIM XL FS 035 ile ilaçlanan tohumlardan oluşturulan parsellerde ve Söke/Aydın’da en iyi sonuç Abbott’a göre % 61.02 ile VITAVAX 200 FF 600 ile ilaçlanmış tohumlardan oluşturulan parsellerde olduğu saptanmıştır. Ayrıca en fazla sağlıklı bitki çıkışı yine bu ilaçların kullanıldığı parsellerde gözlemlenmiştir. Sonuç: Bu çalışma ile denemede kullanılan MAXIM XL FS 035 ve VITAVAX 200 FF 600 ile hastalıkla mücadele açısından ümitvar sonuçlar elde edilmiştir.
The aim of this study is to identify the prevalence of the pathogens in the Mediterranean (Hatay) and Egean (Söke/Aydın) regions where cotton production was intense between 2008-2009 and to determine the prevalence of the pathogens and the effects of 4 different chemical preparations tested against this disease on the disease. Materials and Methods: The research material is found by Bayer Company in Rhizoctonia, Alternaria, Fusarium and the fields in which washing fries are found, Carboxin+thiram (Vitavax 200 FF), Azoxystrobin+Metalaxyl-M+Fludioxonil FS (Dynasty CST 125 FS) 75+37,5+12,5 g/l, Metalaxyl-M+Fludioxonil (Maxim XL 035 FS) active ingredient drugs and cotton seeds of the Fiber Max varieties. The work of random blocks was carried out in four rounds according to the test pattern. Results: When we look at the research findings in field trials, the best result in Hatay in terms of effectiveness against the disease of fide root corruption was found in parcels created from seeds treated with 84.37% by Abbott with MAXIM XL FS 035 and in Söke/Aydın the best result in parcels created from seeds treated with 61.02% by Abbott with VITAVAX 200 FF 600. Also, the most healthy plant output is again observed in the parcels where these medications are used. This study has achieved hopeful results in the fight against the disease with MAXIM XL FS 035 and VITAVAX 200 FF 600 used in the trial.
Objective: The goals of the research were to determine prevalence of pathogens cause cotton damping-off disease and to evaluate of efficacies of different seed fungicides during 2008-2009 growing seasons in Mediterranean (Hatay) and Aegean (Söke) regions where cotton were cultivated extensively. Material and Methods: Seeds of fiber max cotton variety, fungicides with different active ingredients and the cotton fields naturally contaminated with damping off pathogens were the materials of the studies. Fungicides were applied separately in the seed treatment equipment and the seeds were sowed under farmer conditions in the both locations. The data were statistically evaluated by counting both healthy and dead plants on the 10th and 20th days after emerging. Field trials were carried out in randomized block design with four replications. Results: In this research, seed treatments with (metalaxyl-M 25 g/L+fludioxonil 10 g/L) in Hatay and with (carboxin 205,9 g/L+thiram 205,9 g/L) at the dose of 600 g/100 kg of seeds in Söke/Aydın had the best results to control of the damping-off disease according to their prevalence of the potential pathogenic fungi in the locations. Conclusion: Promising results were obtained from seed treatments with (metalaxyl-M 25 g/L+fludioxonil 10 g/L) and (carboxin 205,9 g/L+thiram 205,9 g/L) at the dose of 600 g/100 kg of seeds on the field trials.
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