Research Progress on Diseases Caused by the Soil-Borne Fungal Pathogen Rhizoctonia solani in Alfalfa
Author:
Akber Muhammad Abdullah1, Fang Xiangling1ORCID
Affiliation:
1. Center for Grassland Microbiome, State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China
Abstract
Rhizoctonia solani is a soil-borne fungal species with worldwide distribution and poses serious threats to a wide range of economically important crops such as grain and forage crops. This pathogen has survival capabilities within plants and soil, giving rise to sclerotia and persisting for several months or years. Alfalfa (Medicago sativa) is the most widely grown and important forage crop in China and worldwide. The unique characteristics of alfalfa, such as excellent forage quality, ruminant desirability, and substantial biomass output, distinguish it from other fodder crops, and it is also known as the “Queen of Forages”. However, the production of alfalfa is seriously affected by R. solani, with yield losses of 20% to 60% globally. This review firstly summarizes diseases such as seedling damping-off, root rot, crown rot, root cankers, stem cankers, blight, and stem rot caused by R. solani in alfalfa and the survival mechanism of this pathogen. The techniques for R. solani detection and quantification from plants and soils, as well as management through host resistance, cultural practices, fungicides, and biological control, were then overviewed. This review provides scientific knowledge to enable researchers to efficiently manage R. solani in alfalfa production.
Funder
National Key Research and Development Program of China Gansu Provincial Science and Technology Major Projects
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