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Interactive Influence of Soil and Plant Genotypes on Mycorrhizal Dependency in Finger Millet
Journal of Soil Science and Plant Nutrition ( IF 3.9 ) Pub Date : 2020-03-19 , DOI: 10.1007/s42729-020-00212-2
Nagaraj Kandhasamy , Koshila Ravi Ravichandran , Muthukumar Thangavelu

The present study aims to assess the impact of soil types (Alfisol and Vertisol) on mycorrhizal dependency and nutrient acquisition in ten genotypes of finger millet ( Eleusine coracana L.Gaertn.) (GPU 28, GPU 45, GPU 48, GPU 66, GPU 67, KMR 301, KMR 304, ML 365, MR 6, and SURATAI). Finger millet was raised both in the presence and absence of arbuscular mycorrhizal (AM) fungi in a complete randomized block design under greenhouse conditions. Soil characteristics, biomass, shoot and root nitrogen (N), and phosphorus (P) content of plants were measured after 45 days of growth. The shoot and root biomass were significantly greater for finger millet plants raised in the presence of AM fungi than those grown in its absence in both the soil types. The shoot and root N contents were higher in SURATAI and GPU 66 genotypes in both soil types in the presence of AM fungi. However, the maximum shoot and root P concentrations in the presence of AM fungi were recorded in ML 365 and KMR 304 genotypes in Alfisol soil, whereas GPU 28 and GPU 48 had higher shoot and root P contents in Vertisol soil, in the presence of AM fungi. The finger millet genotype SURATAI was highly dependent on AM fungi (69.44% and 45.36%) in both the soil types. The results of the study indicated that interactions between soil type and the genotypes significantly influenced the mycorrhizal dependency of finger millet in spite of its elaborate root system.

中文翻译:

土壤和植物基因型对小米菌根依赖性的交互影响

本研究旨在评估土壤类型(Alfisol 和 Vertisol)对十种指黍(Eleusine coracana L.Gaertn.)(GPU 28、GPU 45、GPU 48、GPU 66、GPU)的菌根依赖性和养分获取的影响67、KMR 301、KMR 304、ML 365、MR 6 和 SURATAI)。在温室条件下,在完全随机区组设计中,在存在和不存在丛枝菌根 (AM) 真菌的情况下饲养手指小米。在生长 45 天后测量植物的土壤特征、生物量、地上部和根部氮 (N) 和磷 (P) 含量。在两种土壤类型中,在存在 AM 真菌的情况下种植的手指小米植物的芽和根生物量显着高于不存在 AM 真菌的情况。在 AM 真菌存在的情况下,两种土壤类型中 SURATAI 和 GPU 66 基因型的地上部和根部 N 含量较高。然而,在存在 AM 真菌的情况下,在 Alfisol 土壤中的 ML 365 和 KMR 304 基因型中记录了最大的芽和根 P 浓度,而在存在 AM 的情况下,GPU 28 和 GPU 48 在 Vertisol 土壤中具有更高的芽和根 P菌类。在两种土壤类型中,指黍基因型 SURATAI 都高度依赖 AM 真菌(69.44% 和 45.36%)。研究结果表明,尽管根系复杂,土壤类型和基因型之间的相互作用显着影响了手指小米的菌根依赖性。而 GPU 28 和 GPU 48 在存在 AM 真菌的 Vertisol 土壤中具有更高的芽和根 P 含量。在两种土壤类型中,指黍基因型 SURATAI 都高度依赖 AM 真菌(69.44% 和 45.36%)。研究结果表明,尽管根系复杂,土壤类型和基因型之间的相互作用显着影响了手指小米的菌根依赖性。而 GPU 28 和 GPU 48 在存在 AM 真菌的 Vertisol 土壤中具有更高的芽和根 P 含量。在两种土壤类型中,指黍基因型 SURATAI 都高度依赖 AM 真菌(69.44% 和 45.36%)。研究结果表明,尽管根系复杂,土壤类型和基因型之间的相互作用显着影响了手指小米的菌根依赖性。
更新日期:2020-03-19
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