Examination quality seed perennial ryegrass, Italian ryegrass and red fescue

Abstract

Examination is seed quality of perennial ryegrass (Lolium perenne), italian ryegrass (Lolium multiflorum) and red fescue (Festuca rubra) during the five years 2010 - 2014. The average established seed purity was over 98.40%, with varying by year from 96.7% to 99.2%. The greatest part of the impurities was inert matter, which are varied over the years in the range from 0.0% to 2.30%. Presence of weed seeds by year varied in the range from 0.0% to 0.50%. In the seeds of the tested grasses dominate the weeds from the family Asteraceae, Caryophillaceae, Chenopodiaceae and Polygonaceae. The most common weeds in the investigated grasses were Amaranthus retroflexus and Chenopodium album. Participation of other species by year ranged from 0.0% to 1.8%. Seed germination varied from 75 to 88%, the average was 83%. The number of abnormal seedlings was 4%, while the average number of ungerminated seeds was 13%.