However, during the first week, Fv/Fm values of cucumbers ranged from 0.480 to 0.570, values which can be interpreted as plant stress due to trans planting. After the first week, cucumbers in 60 and 80% compost quickly over-came the transplant stress and Fv/Fm values reached up to 0.710. Two weeks after planting, values for cucumbers growing in 20 and 40% compost also exceeded the 0.700 level while those in 100% compost struggled to reach the 0.700 level until the third week Cucumbers in 0% compost just passed the 0.700 threshold after the fourth week while the mean Fv/Fm values in the ground plots neverr eached 0.700. Fv/Fm values started to decline by week 17 with the on set of colder temperatures and all plants were dead by week 19.