Determination of the efficacies of different phosphites in the management of tomato bacterial speck disease caused by Pseudomonas syringae pv. tomato

Sa Ad Mohamed Haji Nour; Sümer Horuz

Makale detayları

Determination of the efficacies of different phosphites in the management of tomato bacterial speck disease caused by Pseudomonas syringae pv. tomato

Yazarlar:

Sa Ad Mohamed Haji Nour | Sümer Horuz

Yayıncı:

Hatay Mustafa Kemal University

Ana Başlıklar:

Ziraat Mühendisliği

Dergi:

Mustafa Kemal Üniversitesi Tarım Bilimleri Dergisi Vol.28 Issue 1, pp.25-37

Belge Tipi:

Makale

Yayın Tarihi:

7/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001286055

pISSN:

2667-7733

Anahtar kelimeler:

Özet:

 This study tested the efficacy of five different phosphites calcium, copper, magnesium, potassium and zincmanganese phosphites and a fungicide Fosetyl-Aluminum to inhibit bacterial speck disease severity caused by Pseudomonas syringae pv. tomato Pst on tomato leaves. The phosphites were applied at the recommended doses to the Pst inoculated plants in pots by foliar spraying at one-week intervals for a total of 4 weeks. The plants were kept in a controlled greenhouse under relative humidity 75-90 and temperature 22-24 C until disease symptoms appeared in the control plants. Phosphites and Fosetyl-Aluminum inhibited the Pst symptoms on tomato leaves by 42.1-75.0 in the first and 22.8-90.3 in the second experiments. This study demonstrated the direct influence of phosphites on tomato bacterial speck. The study suggested that phosphites can be an effective alternative for the chemical control of tomato bacterial disease. The bacterial agent, Pst, causes bacterial speck disease in tomatoes. The initial symptoms of the disease are water-soaked, small dark brown spots surrounded by a yellow halo on tomato leaves. Since the pathogen is seed-borne, control of the disease is difficult.

 This study tested the efficacy of five different phosphites calcium, copper, magnesium, potassium and zincmanganese phosphites and a fungicide Fosetyl-Aluminum to inhibit bacterial speck disease severity caused by Pseudomonas syringae pv. tomato Pst on tomato leaves. The phosphites were applied at the recommended doses to the Pst inoculated plants in pots by foliar spraying at one-week intervals for a total of 4 weeks. The plants were kept in a controlled greenhouse under relative humidity 75-90 and temperature 22-24 C until disease symptoms appeared in the control plants. Phosphites and Fosetyl-Aluminum inhibited the Pst symptoms on tomato leaves by 42.1-75.0 in the first and 22.8-90.3 in the second experiments. This study demonstrated the direct influence of phosphites on tomato bacterial speck. The study suggested that phosphites can be an effective alternative for the chemical control of tomato bacterial disease. The bacterial agent, Pst, causes bacterial speck disease in tomatoes. The initial symptoms of the disease are water-soaked, small dark brown spots surrounded by a yellow halo on tomato leaves. Since the pathogen is seed-borne, control of the disease is difficult.

 This study tested the efficacy of five different phosphites calcium, copper, magnesium, potassium and zincmanganese phosphites and a fungicide Fosetyl-Aluminum to inhibit bacterial speck disease severity caused by Pseudomonas syringae pv. tomato Pst on tomato leaves. The phosphites were applied at the recommended doses to the Pst inoculated plants in pots by foliar spraying at one-week intervals for a total of 4 weeks. The plants were kept in a controlled greenhouse under relative humidity 75-90 and temperature 22-24 C until disease symptoms appeared in the control plants. Phosphites and Fosetyl-Aluminum inhibited the Pst symptoms on tomato leaves by 42.1-75.0 in the first and 22.8-90.3 in the second experiments. This study demonstrated the direct influence of phosphites on tomato bacterial speck. The study suggested that phosphites can be an effective alternative for the chemical control of tomato bacterial disease. The bacterial agent, Pst, causes bacterial speck disease in tomatoes. The initial symptoms of the disease are water-soaked, small dark brown spots surrounded by a yellow halo on tomato leaves. Since the pathogen is seed-borne, control of the disease is difficult.

 Bu çalışmada, beş farklı fosfit kalsiyum, bakır, magnezyum, potasyum ve çinkomangan fosfit ve fungisit Fosetyl-Aluminyumun Pseudomonas syringae pv. tomato Pstnun neden olduğu bakteriyel benek hastalığının domates yapraklarındaki gelişimini baskılama durumları test edilmiştir. Fosfitler saksıda bulunan Pst inokule edilmiş domates bitkilerine önerilen dozda 4 hafta boyunca haftada bir kez yapraktan püskürtme şeklinde uygulanmıştır. Bitkiler yüksek nem 75-90 ve sıcaklıkta 22-24 C kontrollü serada kontrol bitkilerinde hastalık belirtileri gözleninceye kadar bekletilmiştir. Fosfitler ve Fosetyl-Aluminyum domates yapraklarında Pst belirtilerini birinci denemede 42.1-75.0, ikinci denemede ise 22.8-90.3 oranında azaltmıştır. Bu çalışma fosfitlerin domates bakteriyel benek hastalığının engellenmesi üzerine olan direk etkiyi ortaya koymuştur. Çalışma sonucunda fosfitlerin hastalığın mücadelesinde kimyasallara alternatif uygulama olarak kullanılabileceği vurgulanmıştır. Bakterial etmen, Pst, domateslerde bakteriyel benek hastalığına yol açar. Hastalığın yaprak belirtileri önceleri su emmiş, daha sonra etrafı sarı bir hale ile çevrili küçük koyu kahverengi lekeler şeklindedir. Hastalık etmeninin tohum kaynaklı olmasından dolayı hastalıkla mücadele oldukça zordur.

Makale detayları

Yazarlar: Sa Ad Mohamed Haji Nour | Sümer Horuz

Yayıncı: Hatay Mustafa Kemal University

Ana Başlıklar: Ziraat Mühendisliği

Dergi: Mustafa Kemal Üniversitesi Tarım Bilimleri Dergisi Vol.28 Issue 1, pp.25-37

Belge Tipi: Makale

Yayın Tarihi: 7/2023

Belge Dili: İngilizce

Document ID (Org No.): 2001286055

pISSN: 2667-7733

Sayı

Yazarlar:

Sa Ad Mohamed Haji Nour | Sümer Horuz

Yayıncı:

Hatay Mustafa Kemal University

Ana Başlıklar:

Ziraat Mühendisliği

Dergi:

Mustafa Kemal Üniversitesi Tarım Bilimleri Dergisi Vol.28 Issue 1, pp.25-37

Belge Tipi:

Makale

Yayın Tarihi:

7/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001286055

pISSN:

2667-7733