ABSTRACT Mungbean is an important crop species cultivated in Southeast Asia and middle east regions where expanded salinity is a central point restricting plant development and yield profitability. In the present study, the impact of arbuscular mycorrhizal (AM) inoculation on improving biomass, plant resilience, nodulation, AM colonization, sporulation, yield, yield traits, nutrient concentration and uptake of mungbean under five salinity levels was investigated. The trial was laid in a factorial randomized completely block design with four replications. Five salinity treatments (0, 2, 4, 6 and 8 dS m−1) considered as the first factor and mycorrhizal inoculation as the second factor. The soil-based AM fungal inoculum containing 275 ± 20 spores along with colonized Sorghum bicolor root sections was applied to each mycorrhizal pot. The results demonstrated that mycorrhizal inoculation increased yield and other yield contributing traits of mungbean relative to non-mycorrhizal plants under saline conditions. The increased yield and yield traits might be associated with increased dry biomass, plant resilience, nodulation, colonization, nutrient concentration and uptake of mungbean under AM inoculation. Plant resilience was noteworthy in mycorrhizal plants (96.6%, 87.6%, 81.3%, and 74.7% treated with 2, 4, 6, and 8 dS m−1, respectively) than in non-mycorrhizal plants (92.4%, 76.9%, 68.2%, and 63.0%, respectively). The effect of AM inoculation was more conspicuous in soil with more salinity. Nutrient concentration increased in mungbean due to AM inoculation. At different salinity, the root biomass was also higher in AM inoculated mungbean, relative to non-inoculated plant. Eventually, nutrients uptake per plant increased by 21.4%, 26.0%, 20.1%, 20.2%, 23.7%, 22.9%, 32.4%, and 26.9% of N, P, K, S, Ca, Mg, B, and Zn, respectively, in mungbean due to AM inoculation relative to non-mycorrhizal plants. The plant dry biomass, nodulation, colonization, nutrient concentration, and uptake were increased by AM inoculation under saline and non-saline conditions leading to an improved yield of mungbean.

中文翻译：

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丛枝菌根的定植增加了中等盐度下绿豆（Vigna radiata L.）的产量

摘要 绿豆是东南亚和中东地区栽培的重要作物品种，在这些地区，盐度扩大是限制植物发育和产量盈利的中心点。在本研究中，研究了丛枝菌根 (AM) 接种对提高生物量、植物恢复力、结瘤、AM 定植、孢子形成、产量、产量性状、营养浓度和五种盐度下绿豆吸收的影响。该试验采用因子随机完全区组设计，重复四次。五种盐度处理（0、2、4、6 和 8 dS m-1）被认为是第一因素，菌根接种是第二因素。将含有 275 ± 20 个孢子的基于土壤的 AM 真菌接种物以及定植的高粱双色根部分应用于每个菌根盆。结果表明，相对于非菌根植物，在盐渍条件下接种菌根可提高绿豆的产量和其他有助于产量的性状。增加的产量和产量性状可能与增加的干生物量、植物恢复力、结瘤、定植、养分浓度和 AM 接种下绿豆的吸收有关。与非菌根植物相比，菌根植物（分别为 96.6%、87.6%、81.3% 和 74.7% 用 2、4、6 和 8 dS m-1 处理）的植物恢复力值得注意（92.4%、76.9%、 68.2% 和 63.0%）。AM接种的效果在盐度较高的土壤中更为显着。由于接种 AM，绿豆中的营养物质浓度增加。在不同盐度下，相对于未接种植物，AM 接种绿豆的根生物量也更高。最终，每株植物对 N、P、K、S、Ca、Mg、B 和 Zn 的养分吸收增加了 21.4%、26.0%、20.1%、20.2%、23.7%、22.9%、32.4% 和 26.9%，分别在绿豆中，由于相对于非菌根植物的 AM 接种。在盐分和非盐分条件下通过 AM 接种增加植物干生物量、结瘤、定植、养分浓度和吸收，从而提高绿豆产量。