![]() dactylon (100.0, 95.9 and 89.6%), under high and low luminosity. compressus (56.5, 10.3 and 17.2%) grasses and for inflorescence emission of C. All treatments were evaluated under two light conditions, represented by plastic greenhouse (total light) and plastic greenhouse + shading 50% (partial light).The results obtained at 63 days after application showed that trinexapac-ethyl (250 g ha-1), clethodim (12 g ha-1) and imazethapyr (12 g ha-1) were the best growth regulators for the vegetative development of C. For each grass species, the experimental design used was completely randomized, in a factorial scheme 6 x 2, with four replications, using two growth regulators (trinexapac-ethyl and ethephon), three herbicides applied in sub doses (clethodim, imazethapyr and metsulfuron-methyl), and a check without application. In order to evaluate the development of the grass species Bermuda (Cynodon dactylon), Emerald (Zoysia japonica) and Broadleaf Carpetgrass (Axonopus compressus) submitted to herbicide sub doses and growth regulators under two light conditions, three experiments were conducted in a greenhouse at ParaguaƧu Paulista from September to December, 2006. However, if shade level exceeds 42% (up to 70%) paclobutrazol at 1500 ppm or TE at 400 ppm can be used monthly as a foliar application to overcome the adverse effects of shade. Control plants were sprayed with tap water.It can be concluded that Paspalum vaginatum plants can be grown under shade level up to 42% with no significant reduction in growth. Plants grown under different shade levels treatments were sprayed monthly with either paclobutrazol (at 750 or 1500 ppm) or TE (at 200 or 400 ppm). In addition, full sunlight (unshade) was used as a control. The turfgrass was covered with shade cloth of different light permeability levels providing shading levels of 42%, 63% and 70% of natural light. Salam) grown under different shade levels to foliar application of different concentrations of paclobutrazol and trinexapac-ethyl (TE). This work aimed to investigate the response of paspalum (Paspalum vaginatum, Swartz cv. This study was conducted at the Experimental Nursery of the Ornamental Horticulture Department, Faculty of Agriculture, Cairo University during the two successive seasons of 011.
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