Research Information System
International Congress on Rangeland and Forage Crops III, Aydın, Turkey, 12 - 14 September 2025, (Summary Text)
This research was conducted to determine the effects
of different irrigation levels and nitrogen doses on the perennial ryegrass (Lolium perenne L.). The experimental
design was the randomized blocks in a split plot design with three
replications. The study included four different irrigation levels (25%, 50%,
75%, and 100% of evaporation from a pan) and four nitrogen doses (0.0, 1.25,
2.5, and 5.0 g N m-²). The parameters measured and observed in the
study include turf color and quality, clipping yield, chlorophyll content,
turgor loss, leaf relative water content, electrolyte leakage, and plant water consumption.
According to the results, increasing lower clipping yields than the 5.00 g N
m⁻² dose. 75% irrigation combined with 2.5 g N m irrigation levels and nitrogen
doses improves plant tolerance to environmental stress by increasing leaf
relative water content and chlorophyll content and reducing turgor loss and
electrolyte leakage. The 2.50 g N m⁻² application dose provided satisfactory
turf color and quality; however, it produced ⁻² was sufficient to maintain
acceptable turf color and quality, while also providing the benefit of a lower
clipping yield. This schedule could be adjusted by calibrating irrigation levels and
nitrogen doses for improved seasonal turf quality in Mediterranean climates.