Integrated management for Fusarium oxysporum f.sp. capsici of Capsicum using biological control and fungicide

Yıl 2025, Cilt: 39 Sayı: 3, 574 - 587, 27.12.2025

Tajudin Aliyi Mohammed

https://doi.org/10.15316/selcukjafsci.1666289

Öz

Fusarium oxysporum f. sp. capsici'nin neden olduğu Fusarium solgunluğu, Capsicum türleri için önemli bir kısıtlamadır. Bu çalışma, Capsicum'da Fusarium solgunluğu için entegre bir yönetim yaklaşımı geliştirmeyi amaçlamaktadır. Çalışma, iki ardışık Kış Biberi yetiştirme sezonunda gerçekleştirilmiştir. Üç tekrarlı rastgele tam blok tasarımı, sekiz uygulama ile sonuçlanmıştır. Biberin gövde bölgesine yakın toprak, bir litre suya 10 g Trichoderma harzianum tozu karışımı ile sulanmış ve 500 ml'si, fide dikiminden hemen sonra her bitkiye uygulanmıştır. Biber fidelerinin kökleri, dikim sırasında 30 dakika boyunca Metalaxyl-M ve Mancozeb karışımına batırılmıştır. Solgunluk oranı, bir ölçek kullanılarak 10 günlük aralıklarla kaydedilmiş ve yüzde hastalık indeksine dönüştürülmüştür. Tüm veriler SAS yazılımı kullanılarak analiz edilmiştir. Fungisit ve biyolojik ajanın birleşik etkisi, ilk sezonda Bako yerel çeşidinde %93, Melka Zala çeşidinde ise %91,2 oranında solgunluk hastalığını önemli ölçüde azalttı; ikinci sezonda ise Bako yerel çeşidinde %75,3, Melka Zala çeşidinde ise %79,9 oranında azalma sağlandı. Sonuç olarak, hektar başına pazarlanabilir verim ilk sezonda %187,6, ikinci sezonda ise %406,9 oranında arttı. Bu çalışma, T. harzianum, fungisit ve Capsicum çeşitlerinin entegre edilmesinin hastalığı etkili bir şekilde yönetebileceğini göstermektedir. Bu, bu biyolojik ajanın büyük ölçekli formülasyonu ve ticarileştirilmesi potansiyelini ortaya koymaktadır. Bununla birlikte, mevcut bulguları doğrulamak için farklı bölgelerde ek çalışmalar yapılmalıdır. Trichoderma, etkili bakteriyel biyolojik ajanlar ve uyumlu fungisitlerin Fusarium solgunluğuna karşı saha koşullarındaki birleşik etkileri de takdir edilmektedir.

Anahtar Kelimeler

Biocontrol , Capsicum , Fungicide , Fusarium oxysporum

Proje Numarası

31,2017

Integrated Management for Fusarium Oxysporum f. sp. Capsici of Capsicum using Biological Control and Fungicide

Öz

Fusarium wilt caused by Fusarium oxysporum f. sp. capsici is a major constraint of Capsicum species. This study aims to develop an integrated management approach for Fusarium wilt in Capsicum. The study was conducted in two consecutive Winter Pepper growing seasons. A randomized complete block design with three replicates resulted in eight treatments. The soil near the stem region of the pepper was drenched with a mixture of 10 g of Trichoderma harzianum powder in a liter of water, and 500 ml was applied to each plant immediately after transplanting. Pepper seedling roots were dipped in a Metalaxyl-M mixture of Metalaxyl-M and Mancozeb for 30 minutes during transplanting. Wilt incidence was recorded at 10-day intervals using a scale and converted to the percent disease index. All data were analyzed using SAS software. The combined effect of fungicide and bioagent significantly reduced wilt disease by 93% for the Bako local and 91.2% for Melka Zala in the first season, 75.3% for the Bako local cultivar, and 79.9% for the Melka Zala variety in the second season. As a result, marketable yield per hectare increased by 187.6% in the first and 406.9% in the second season. This study demonstrates that integrating T. harzianum, fungicide, and Capsicum cultivars can effectively manage the disease. This suggests the potential for large-scale formulation and commercialization of this bioagent. However, additional studies should be conducted across locations to validate the current findings. The combined effects of Trichoderma, effective bacterial bioagents, and compatible fungicides against Fusarium wilt under field conditions are also appreciated.

Anahtar Kelimeler

Biocontrol , Capsicum , Fungicide , Fusarium oxysporum , Trichoderma harzianum.

Etik Beyan

The authors declare that this research work adheres to ethical research practices.

Destekleyen Kurum

Korea Program on International Agriculture (KOPIA) and Ethiopian Institute of Agricultural Research (EIAR)

Proje Numarası

31,2017

Teşekkür

The authors would like to thank the Korea Program on International Agriculture (KOPIA) , and the Ethiopian Institute of Agricultural Research (EIAR) for their financial and logistical support. , respectively.

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