Effects of plant density and fungicide application on foliar diseases and onion yieldThe effects of plant density and fungicide application on the severity of foliar diseases and onion yield ('Bola Precoce') were studied in 2010 and 2011, in Ponta Grossa, Paraná state, Brazil. The experiments were carried out in the field in randomized block design in a split plot. A fungicide (metiram + pyraclostrobin, 2.5 kg/ha of c.p.) was either applied or not applied to the plotsat 89, 100 and 110 days after seedling transplantation (DAT). No relationships were observed between plant density and fungicide use and the severity and area under the disease progress curve for mildew and purple blotch. In addition, no significant differences among disease severities and plant densities, regardless of fungicide application or the average mass and diameter of the bulbs. In 2011, a linear increase in Class 1 bulbs with increasing plant density was observed, demonstrating that denser planting leads to smaller bulbs.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.