Maize is an important cereal crop of India, stands 3 rd in area and production after rice and wheat. Currently, it is cultivated over an area of 8.49 m ha with a production of 21.28 million tonnes. Maize is one of the most important cereal crops in the world agriculture economy both as food for man and feed for animals. It is a miracle crop, having high yield potential, wider adaptability and it is grown throughout the world. Maize is called “Queen of Cereals” because of its productive potential compared to any other cereal crop. In this present study, four AM Fungal spores isolated from five different locations in Cuddalore. The isolated fungal spores are Glomus fasciculatum, Glomus mossae, Gigaspora margarita and Acaulospora laevis. Among the fungal spores, efficient strain selected from Phoaphatase activity, Glomus fasciculatum used for growth of Zea mays by produced the acid phosphatase activity (24.80 µg/ 24 h. 10 g -1 of root) and alkaline phosphatase activity (23.00 µg/ 24 h. 10 g -1 of root) on 90 DAS.
