Bitki Büyümesini Teşvik Eden Bazı Bakterilerin Kuru Fasulyenin (Phaseolus vulgaris L. cv. Aras 98) Verim ve Verim Unsurlarına Etkisi

Öz

Leguminosae familyasına ait olan kuru fasulye (Phaseolus vulgaris L.) bitkisi besin değeri yüksek bir gıda kaynağıdır. Bitki büyümesini teşvik eden bakteriler (PGPBs) aktif olarak bitkilerde kolonize olan ve bitki büyümesini ve verimini artıran ve hastalıkları baskılayan bir bakteri grubudur. Bu çalışmada on adet PGPB’nin (Alcaligenes piechaudii strain RK-136, Bacillus megaterium strain M-3, Bacillus pumilus strain M-13, Bacillus subtilis strain BA-142, Erwinia rhapontici strain RK-135, Burkholderia cepacia strain RK-277, Pantoea agglomerans strain RK-84, RK-123, RK-92, Pseudomonas putida strain BA-8, Serratia liquefaciens strain RK-102) kuru fasulyenin büyümesi ve verimi üzerine etkililiği değerlendirilmiştir. Ayrıca bakteryel ve fungal bitki patojenlerinin arazi koşullarındaki doğal enfeksiyonlarından kaynaklanan hastalıkların önlenmesinde de PGPR bakterilerinin etkinlikleri araştırılmıştır. Çalışmanın sonunda uygulanan bazı PGPB’lerin fasulyede büyümeyi ve verimi arttırdığı tespit edilmiştir. Ek olarak, bu PGPB’lerin bazıları bakteriyel ya da fungal patojen enfeksiyonlarından kaynaklanan hastalıkları baskılamışlardır. Sonuç olarak, Bacillus megaterium strain M-3, Erwinia rhapontici strain RK-135 ve Pantoea agglomerans strain RK-92’in de dahil olduğu test edilen bazı bakterilerin sürdürülebilir ve ekolojik tarım sistemlerinde kuru fasulye üretiminde biyogübre olarak kullanılabilir.

Anahtar Kelimeler

• Bakteri, Phaseolus vulgaris, bitki büyümesini teşvik eden bakteriler, PGPB, verim, verim unsurları

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