Comparisons of Micro-Trials and Spaced Plant Nurseries with Dense Swards as Means for Evaluating Turfgrass Genotypes1
- B. Bourgoin and
- P. Mansat
Three types of test plots—spaced planted nurseries (SP) with plants on a 50-cm grid; micro-trials (MT) with plants on a 10-cm grid; dense swards (DS) broadcast-seeded at standard rates—were compared using 10 well-known cultivars each of red fescue (Festuca rubra L.) and Kentucky bluegrass (Poa pratensis L.). Ratings were made on all plots for traffic tolerance, seasonal color, disease resistance, leaf color, and leaf texture. Cultivar ranks for each character were determined for each method of planting. Agreement between test methods was then evaluated by Spearman rank correlations. MT plots ranked cultivars in the same way as did OS plots, while SP plot ranks showed little correlation to OS values. Values obtained indicate that MT plots can be effectively used in early testing when seed supplies are too low for normal planting. The use of SP tests should be confined to population studies and evaluation of individual plant characteristics.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
Copyright © 1980. . Copyright © 1980 by the American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, and International Turfgrass Society, 5585 Guilford Rd., Madison, WI 53711 USA