Turfgrass seedling height and quality in paclobutrazol- treated seeds of lolium perenne l. barrage and festuca arundinacea l. master

Abstract

Paclobutrazol affects height and quality of seedlings of turfgrass specious. To determine the effect of paclobutrazol on seedling height and visual quality, seeds of Lolium perenne L. Barrage and Festuca arundinacea L. Master were soaked with 0, 20, 30 and 40 mgL-1 paclobutrazol for 24 h on shaker during imbibitions stage of seed germination. Treated seeds were sowed in the soil mixtures containing 70 percent gardening soil (with clay loam texture) and 30 percent sand (V/V). Pots had 41 cm height and 23 cm wide. Lower height at three stages of measured vegetative growth was resulted in Festuca arundinacea L. Master. Paclobutrazol resulted in lower height in three stage of vegetative growth. The interaction between cultivar and paclobutrazol concentrations was significant at 30 days after planting (DAP). Treatment of Festuca arundinacea L. Master with paclobutrazol 30 and 40 mgL-1 showed lower height at stage tree (30 DAP) while there were no significant difference in Lolium perenne L. Barrage. All of paclobutrazol treatment resulted lower wide of blade in Lolium perenne L. Barrage. Festuca arundinacea L. Master treated with 40 mgL-1 paclobutrazol had higher visual quality. It can be concluded that different cultivar could show different response to paclobutrazol treated on seed before planting. Festuca arundinacea L. Master treated with 40 mgL-1 may be more suitable to be used in this regard.