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首页> 外文期刊>Turkish Journal of Agriculture & Forestry >Effect of mycorrhizal inoculation on growth, nitrogen fixation, and nutrient uptake in Cicer arietinum (L.) under salt stress
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Effect of mycorrhizal inoculation on growth, nitrogen fixation, and nutrient uptake in Cicer arietinum (L.) under salt stress

机译：盐胁迫下菌根接种对番茄的生长，固氮和养分吸收的影响。

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摘要

Most legumes in natural conditions form a symbiosis with arbuscular mycorrhizal (AM) fungi. AM fungi in saline soils have been reported to improve salinity tolerance and growth in plants. In the present study, interaction between mycorrhizal fungus, Glomus mosseae, and salinity stress in relation to plant growth, nitrogen fixation, and nutrient accumulation was evaluated in Cicer arietinum (L.) (chickpea). Two genotypes of chickpea (Pusa-329, salt tolerant, and Pusa-240, salt sensitive) were compared under different levels of salinity with and without mycorrhizal inoculations. Salt stress resulted in a noticeable decline in shoot and root dry matter accumulation, resulting in a decline in the shoot-to-root ratio (SRR) in all plants. However, Pusa-329 was found to be more tolerant to salinity than Pusa-240. AM plants exhibited better growth and biomass accumulation under stressed as well as unstressed conditions. Mycorrhizal infection (MI) was reduced with increasing salinity levels, but the mycorrhizal dependency (MD) increased, which was more evident in Pusa-240. Salinity resulted in a marked decline in the nodule dry weights, whereas a surge in the nodule number was recorded. Nitrogenase activity was reduced with increasing salt concentrations. AM plants had considerably higher nodule numbers, dry weights, and nitrogenase activity under both saline and nonsaline environments. Pusa-329 had a comparatively lower Na+ concentration and higher K+ and Ca2+ concentrations than Pusa-240. Although nitrogen (N) and phosphorus (P) contents declined with increasing salinity, Pusa-329 had higher levels of N and P as compared with Pusa-240. Plants inoculated with Glomus mosseae had better plant growth and nitrogen fixation under salt stress.
机译：自然条件下的大多数豆类与丛枝菌根（AM）真菌共生。据报道，盐渍土壤中的AM真菌可提高耐盐性和植物生长。在当前的研究中，在Cicer arietinum（L。）（鹰嘴豆）中评估了菌根真菌，Glomus mosseae和盐分胁迫与植物生长，固氮和养分积累之间的相互作用。比较了两种盐度水平下鹰嘴豆的两种基因型（耐盐Pusa-329和对盐敏感的Pusa-240）在不同盐度下接种和不接种菌根。盐胁迫导致芽和根中干物质积累的显着下降，导致所有植物中的茎与根之比（SRR）下降。但是，发现Pusa-329比Pusa-240更耐盐度。 AM植物在胁迫和非胁迫条件下均表现出更好的生长和生物量积累。盐度水平越高，菌根感染（MI）越减少，但菌根依赖性（MD）却增加，这在Pusa-240中更为明显。盐度导致结节干重显着下降，而结节数却激增。氮酶活性随着盐浓度的增加而降低。在盐和非盐环境下，AM植物的根瘤数，干重和固氮酶活性均较高。与Pusa-240相比，Pusa-329的Na +浓度相对较低，而K +和Ca2 +浓度较高。尽管氮（N）和磷（P）的含量随盐度的增加而下降，但与Pusa-240相比，Pusa-329的N和P含量更高。盐胁迫下接种Glomus mosseae的植物具有更好的生长和固氮能力。

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