Ameliorative symbiosis of endophyte (Penicillium funiculosum LHL06) under salt stress elevated plant growth of Glycine max L.

Penelitian ini bertujuan untuk mengkaji pengaruh penggunaan jenis pupuk kandang dan berbagai konsentrasi plant growth promoting rhizobacteria (PGPR) terhadap pertumbuhan dan produksi kedelai hitam (Glycine max L. Merill). Rancangan percobaan yang digunakan adalah rancangan acak lengkap pola faktorial. Faktor pertama adalah jenis pupuk kandang (tanpa pupuk, pupuk kandang ayam dan pupuk kandang kambing) dan faktor kedua adalah konsentrasi PGPR (PGPR komersial 5 ml/l air, 0 ml/l air, 5 ml/l air, 12,5 ml/l air, dan 20 ml/l air). Parameter pertumbuhan yang diamati meliputi tinggi tanaman dan jumlah daun. Parameter produksi yang diamati yaitu jumlah polong, berat polong dan bobot 100 biji. Data dianalisis dengan analisis ragam dan dilanjutkan dengan uji jarak berganda Duncan (Duncan’s Multiple Range Test). Hasil penelitian menunjukkan jenis pupuk kandang mampu meningkatkan tinggi tanaman, jumlah daun, jumlah polong, berat polong dan bobot 100 biji. Peningkatan konsentrasi PGPR hanya meningkatkan tinggi tanaman. Tidak menunjukkan adanya interaksi antara jenis pupuk kandang dan konsentrasi PGPR dalam meningkatkan pertumbuhan dan produksi kedelai hitam. Kata kunci : pupuk kandang ayam, pupuk kandang kambing, PGPR, kedelai hitam

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Dual inoculation of Bradyrhizobium and Enterobacter alleviates the adverse effect of salinity on Glycine max seedling

Notulae Botanicae Horti Agrobotanici Cluj-Napoca ◽

10.15835/nbha49312461 ◽

2021 ◽

Vol 49 (3) ◽

pp. 12461

Author(s):

Mona S. AGHA ◽

Mohamed A. ABBAS ◽

Mahmoud R. SOFY ◽

Samia A. HAROUN ◽

Amr M. MOWAFY

Keyword(s):

Salt Stress ◽

Glycine Max ◽

Sugar Content ◽

Stability Index ◽

Significant Rise ◽

Morphological Criteria ◽

Glycine Max L ◽

Soybean Plants ◽

Plant Salt Tolerance ◽

Harmful Effects

The aid of beneficial microbes, which is a well-accepted strategy, may improve plant salt tolerance. However, the mechanisms that underpin it are unclear. In this study, seedling experiments were carried out to assess the effect of Bradyrhizobium and Enterobacter on the germination, growth, nonenzymatic and enzymatic content in soybean (Glycine max L.) under salt stress. Water was sprayed on the seeds as a control, and with 75 mM, 150 mM NaCl as salt stress. The findings demonstrate that salt stress (75, 150 mM) caused a significant decrease in germination, morphological criteria, and membrane stability index (MSI) when compared to control seeds but increased lipid peroxidation (MDA), electrolyte leakage (EL), osmotic pressure, proline, citric acid, sugar content, antioxidant enzymes. Furthermore, endophytic Bradyrhizobium and Enterobacter inoculation resulted in a significant rise in all of the above metrics.; however, these treatments resulted in significant reductions in ROS, EL, and MDA in stressed plants. Finally, the findings showed that combining Bradyrhizobium and Enterobacter was the most efficient in reducing the harmful effects of salt on soybean plants by boosting antioxidant up-regulation and lowering membrane leakage and ROS.

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