how many host require for grow of puccinia graminis?
Hello, Akash!
Two hosts are required for growing of puccinia graminis.
Like other Puccinia species, P. graminis is an obligate biotroph (it colonizes living plant cells) and has a complex life cycle featuring alternation of generations. The fungus is heteroecious, requiring two hosts to complete its life cycle – the cereal host and the alternate host.
Hope this helps!