Rootinvading fungi varieties and their distribution of Medicago sativa in Henan Province

The objective of this study was to investigate the rootinvading fungi varieties of alfalfa in various growing seasons. An experiment was conducted to isolate and identify fungi varieties from 31 alfalfa (Medicago sativa) varieties in Henan Province, China. The results of this study showed that the dominant fungi species in three seasons were obviously different, and Alternaria alternata and Rhizoctonia solani were the most common fungal species in three growing seasons and dominant fungal species were different in each season. Rootinvading fungi and their incidence of three growing seasons showed a significant difference among 31 alfalfa varieties. The five varieties with higher incidence of fungi were Alfaking, WL525HQ, Sitel, Siriver, Aohan, respectively, and the five varieties with lower incidence were Algonguin, Vernal, Goldenqueen Grandeur and THG1 when compared to other alfalfa varieties.