Abstract Meloidogyne incognita causes significant yield reduction in the commercial chili, Capsicum frutescens L. This study evaluated the control efficiency of co-inoculation of chili with the Streptomyces spp. strains KPS-E004 and KPS-A032 on the growth and symbiotic performance of M. incognita-challenged plants. The control efficiency of co-inoculation of both strains in suppressing root-knot nematode increased up to 104.99% and 355.54% as compared to inoculation single strain of KPS-E004 and KPS-A032, respectively. The strain mixtures promoted the growth of chili by increasing the shoot and root length and the shoot and root weight by 75.47%, 88.37%, 56.78% and 141.84%, respectively, as well as improving the yield of extra-large chili by 117.90% compared to the uninoculated control. Moreover, plant nutrients (P, Ca, Mg and Fe) in chili inoculated with spores of these strains increased significantly up to 86.21%, 10.76%, 63.41% and 82.94%, respectively. Streptomyces spp. strains KPS-E004 and KPS-A032 could survive and proliferate in the soil throughout the entire 45 days of cultivation. Additionally, inoculation using a combination of both strains enhanced the ribotype richness of the bacterial composition in the soils. The results from this research suggested co-inoculation of Streptomyces spp. strains KPS-E004 and KPS-A032 could be a useful strategy for chili production under sustainable agriculture.

中文翻译：

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使用链霉菌属的共同接种抑制根结病和辣椒（Capsicum fltescens L.）的植物生长。菌株 KPS-A032 和 KPS-E004

摘要 南方根结线虫导致商业辣椒 Capsicum frutescens L 的产量显着降低。本研究评估了辣椒与链霉菌属共同接种的控制效率。菌株 KPS-E004 和 KPS-A032 对 M. incognita 攻击植物的生长和共生性能的影响。与接种单株KPS-E004和KPS-A032相比，两株联合接种对根结线虫的抑制效率分别提高了104.99%和355.54%。菌株混合物促进辣椒的生长，使地上部和根长和地上部重量分别增加了 75.47%、88.37%、56.78% 和 141.84%，使特大辣椒的产量提高了 117.90%与未接种的对照相比。此外，植物养分（P、Ca、接种这些菌株孢子的辣椒中Mg和Fe)显着增加，分别达到86.21%、10.76%、63.41%和82.94%。链霉菌属 菌株 KPS-E004 和 KPS-A032 可以在整个 45 天的培养过程中在土壤中存活和增殖。此外，使用两种菌株的组合进行接种增强了土壤中细菌组成的核糖型丰富度。这项研究的结果表明共接种链霉菌属。菌株 KPS-E004 和 KPS-A032 可能是可持续农业下辣椒生产的有用策略。使用两种菌株的组合进行接种增强了土壤中细菌组成的核糖型丰富度。这项研究的结果表明共接种链霉菌属。菌株 KPS-E004 和 KPS-A032 可能是可持续农业下辣椒生产的有用策略。使用两种菌株的组合进行接种增强了土壤中细菌组成的核糖型丰富度。这项研究的结果表明共接种链霉菌属。菌株 KPS-E004 和 KPS-A032 可能是可持续农业下辣椒生产的有用策略。