Biocontrol Efficacy of Trichoderma harzianum and Pistacia atlantica Extract in Managing Pectobacterium carotovorum Soft Rot Disease in Potato (Solanum tuberosum L.) CV. El Mundo
DOI:
https://doi.org/10.37375/bsj.v8i21.4060Keywords:
Solanum tuberosum, Pectobacterium carotovorum, Biocontrol, Trichoderma harzianum, Pistacia atlantica, Oxidative stressAbstract
This study evaluated the synergistic efficacy of Trichoderma harzianum and Pistacia atlantica extract against Pectobacterium carotovorum-induced soft rot in potato cv. "El Mundo". Five greenhouse treatments assessed antioxidants (CAT, POD, PPO, SOD), oxidative stress markers (MDA, H₂O₂), and growth at 3 and 12 days. Combined (T4) and preventive (T5) treatments significantly mitigated oxidative stress versus infected controls (T2), with T4 recording the lowest H₂O₂ (37.27 µmol/g FW) at 3 days. Defense enzymes and protein content increased in T4 and T5. Shoot length was preserved in T4 (45.17 cm) and T5 (46.33 cm) compared to T2 (31.83 cm). Integrating these bioagents offers a sustainable soft rot management strategy via systemic resistance induction.
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