effect of crown rust (puccinia coronata lolii) on the yield and competitive ability of perennial ryegrass.
Contributors: Polytechnic, Huddersfield. Department of Life Sciences.
Publisher: Huddersfield Polytechnic
Language: eng
Notes: Dept: Life Sciences.

In collaboration with: Welsh plant breeding station, Aberystwyth.

Supervisor: Carr A.

Thesis: PH.D.