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<p>Soil salinization negatively impacts growth, nutrient uptake and yield of crop plants. Recently, arbuscular mycorrhizal fungus (AMF) present in soil has been found to mitigate the deleterious effects of salt stress. AMF can colonize legume plants and improve their stress tolerance. Therefore, the current study investigated the effects of AMF (<i>Rhizophagus fasciculatus</i>) on the growth, nutrient uptake and yield in chickpea (<i>Cicer arientinum</i> L.) genotypes under varying salinity levels (2, 3 and 4 dSm⁻¹). The study involved analyzing the ionic content in roots and leaves and assessing growth and yield parameters under salinity stress, both with and without mycorrhizal inoculation. High salinity levels led to a marked decrease in shoot fresh weight (g) (43.5 ± 16.94%), root fresh weight (g) (50.3 ± 14.08%), root-shoot ratio (55.6 ± 16.12%), dry weight of nodules (g) (47.1 ± 12.35%), phosphorus (P), nitrogen (N), potassium (K<sup>+</sup>) and calcium (Ca<sup>2+</sup>) content (mg g<sup>− 1</sup> DW) in both leaves and roots of plants. In contrast, sodium (Na<sup>+</sup>) uptake was increased (152 ± 10.24%). There was also significant reduction in number of pods per plant (37.5 ± 1.96%), number of branches per plant (25.6 ± 1.45%), seed weight per plant (40.7 ± 4.02%), dry biomass (20.3 ± 2.50%) and seed number per plant (46.8 ± 3.56%) at 4 dSm⁻¹. However, AMF colonization led to significant improvements in these parameters, with yield increases up to 13.7 ± 5.67%. Increased growth, nutrient uptake and yield attributes suggest AMF’s potential to help mitigate the negative effects of salt stress on chickpea.</p>

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Exploring the Potential of Arbuscular Mycorrhizal Fungi as Biofertilizers to Enhance Growth, Nutrient Acquisition and Yield in Chickpea Genotypes Under Salinity Stress

  • 期刊论文

  • 发表日期：

    2025年5月30日

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  • Pooja Pooja,
  • Sridevi Tallapragada,
  • Sakshi Saini,
  • Shweta Punia,
  • Monika Janaagal,
  • Vijay Kumar,
  • Ankisha Lamba

摘要

Soil salinization negatively impacts growth, nutrient uptake and yield of crop plants. Recently, arbuscular mycorrhizal fungus (AMF) present in soil has been found to mitigate the deleterious effects of salt stress. AMF can colonize legume plants and improve their stress tolerance. Therefore, the current study investigated the effects of AMF (Rhizophagus fasciculatus) on the growth, nutrient uptake and yield in chickpea (Cicer arientinum L.) genotypes under varying salinity levels (2, 3 and 4 dSm⁻¹). The study involved analyzing the ionic content in roots and leaves and assessing growth and yield parameters under salinity stress, both with and without mycorrhizal inoculation. High salinity levels led to a marked decrease in shoot fresh weight (g) (43.5 ± 16.94%), root fresh weight (g) (50.3 ± 14.08%), root-shoot ratio (55.6 ± 16.12%), dry weight of nodules (g) (47.1 ± 12.35%), phosphorus (P), nitrogen (N), potassium (K+) and calcium (Ca2+) content (mg g− 1 DW) in both leaves and roots of plants. In contrast, sodium (Na+) uptake was increased (152 ± 10.24%). There was also significant reduction in number of pods per plant (37.5 ± 1.96%), number of branches per plant (25.6 ± 1.45%), seed weight per plant (40.7 ± 4.02%), dry biomass (20.3 ± 2.50%) and seed number per plant (46.8 ± 3.56%) at 4 dSm⁻¹. However, AMF colonization led to significant improvements in these parameters, with yield increases up to 13.7 ± 5.67%. Increased growth, nutrient uptake and yield attributes suggest AMF’s potential to help mitigate the negative effects of salt stress on chickpea.