Keeping in view the acute shortage of fodder and forages in northern Areas of Pakistan, an experiment was conducted in Karakoram Agricultural Research Institute (KARINA) in late November, 1984 and continued for 3 years to evaluate the performance of Dactylus glomerata under two temperature regimes. The treatment included covering the plots with polyethylene sheet and without cover. The covered seed took 19 days to germinate whereas the uncovered seed took 89 days to germinate. Plant height was 65.5 and 42.5 cm and the fresh matter yield was 38.0 and 30.0 t/hr for the covered and uncovered treatments respectively during the first growth year. No significant difference was observed in the growth during the 2nd and 3rd years in both the treatments. The plant height and fresh yield of the covered crop during the first year was high as compared to that uncovered crop due to high temperature under the polyethytene sheet It is also brought about early germination, whereas the low temperatures delayed the germination by70 days.