Abstract
Vesicular-arbuscular mycorrhizal (VAM) fungi are essential for boosting plant growth because they improve soil health, stress tolerance, and nutrient uptake. In this work, seven wheat (Triticum aestivum L.) cultivars—DBW 303 (Karan Vaishnavi), DBW 372 (Karan Varuna), DBW 371 (Karan Vrindha), DBW 332 (Karan Aditya), DBW 370 (Karan Vaidehi), and two more cultivars—are examined for the distribution, colonization, and diversity of VAM fungus. Root colonization, propagule density, and VAM species richness differed considerably between the cultivars. While DBW 372 showed the lowest colonization rate (45%), DBW 303 showed the highest colonization rate (85%), propagule density (102 spores/g soil), and VAM species richness. While DBW 332 and DBW 370 had the fewest VAM species, DBW 371's rhizosphere had the lowest spore population. Glomus was the most common genus among the fungal species found, with ten species, followed by Scutellospora (five species) and Acaulospora (two species). While Scutellospora gregaria was limited to DBW 332 and DBW 370, Glomus constrictum, G. fasciculatum, G. globiferum, and G. tenebrosum were broadly dispersed among all cultivars. The aforementioned results underscore the cultivar-specific correlation of VAM fungi and underscore their capacity to maximize wheat yield using sustainable farming methods. In order to improve nutrient absorption, soil fertility, and general plant resilience, the study offers important insights into choosing mycorrhizal-responsive wheat types.