Minor Use pesticide evaluations in annual ryegrass grown for seed production

Minor Use pesticide evaluations in annual ryegrass grown for seed production – tolerance, efficacy, and yield evaluations 2021, herbicides and plant growth regulators. The trial site at St. Brieux evaluating herbicides had high levels of variability due to the drought and this impacted emergence.

Seed yield results are not reported and evaluations will be repeated in 2022. At Prince Albert, we evaluated two plant growth regulators, Manipulator and Parlay at 1x and 2X rates. Data collection included phytotoxicity ratings, plant density, lodging, height, biomass, seed yield, seed quality, and thousand kernel weight. Due to hot and dry growing conditions and some landscape variability between replicates, minimal lodging was observed and plant growth was stunted.

Yields were very poor and although there were no statistically significant differences in mean seed yield between treatments, the coefficient of variation was high at 28% and results are not conclusive for evaluation of treatment effects on annual ryegrass seed yield. Contact office@saskforageseed.com if you are a registered forage seed grower and wish to see the final report.

2021-Product-Evaluations-in-Annual-Ryegrass-Grown-for-Seed-Production.pdf

2021 Product Evaluations in Annual Ryegrass Grown for Seed Production