species is critically important in areas with prolonged periods of drought. In addition, rapid recovery of damaged plant tissue and re-growth of new tissue following drought stress when water becomes available are also important in perennial grass
plants to survive severe drought and to recover rapidly from drought damages is an important strategy ( Volaire and Lelievre, 2001 ; Volaire et al., 1998 ). Understanding the underlying mechanisms of drought survival and post-drought recovery after
different durations and severities of drought stress in different plant species, but how antioxidant enzymes differ when plants of varied drought tolerance exposed to the same level of water deficit and how they are related to post-drought recovery are not
tolerance to drought stress, but they may also regulate plant regrowth or recovery from drought stress on rewatering when water becomes available. Understanding drought regulation of nitrogen metabolism involving inorganic nitrogen and amino acids is of
, plots were mowed at either 2.5 inches (low mow) or 3 inches (high mow) using a rotary push mower twice per week starting in spring and during the acute drought and recovery experiment; for each mowing, the clippings were returned. A seeding rate of two
compartments ( Chaves et al., 2003 ; Liu et al., 2011 ). As a matter of fact, tolerance of drought is defined as a comprehensive capacity integrating both drought and recovery ( Chen et al., 2015 ). Despite the universal understanding of plant responses to
container and percentage of green groundcover was evaluated for 60 d to determine the level of recovery, if any, from the severe drought. Supplemental light was not used during the spring/summer study but was used in the fall study for 16 h·d −1 to simulate
deeper root systems and higher carbohydrate levels may promote plant drought tolerance or recovery from stress. However, DI can also cause declines in physiological activities in some grass species if the water deficit level was more severe. Turner et al
Orcutt, 1996 ). In addition, rapid recovery of damaged plant tissues or rehydration and resumption of photosynthesis after drought stress when water becomes available is particularly important for perennial plant species to ensure rapid regrowth and stand
Growth recovery of mycorrhizal (VAM) and nonmycorrhizal (non-VAM) neem plants after drought exposure were followed under low phosphorus conditions. Drought significantly decreased plant growth regardless of mycorrhiza. Relative growth rate of droughted plants was greater than nondroughted plants during the growth recovery period, and compensated the loss of growth during the previous drought. VAM increased plant growth and improved regeneration of new roots outside the original root balls, particularly in plants previously exposed to drought. New roots of VAM plants were readily colonized by the VAM fungi, while those of non-VAM plants remained uncolonized. VAM growth enhancement after drought exposure was associated with greater uptake of phosphorus and other nutrients, and improved root regeneration.