Under severe plant dehydration, some pine needle conduits can actually collapse as the xylem tensions increase (Figure 8). Water moving through plants is considered meta-stable because at a ...

Applying mulch is one of the best things you can do to help your plants through hot, dry spells this summer. Bare soil heats up rapidly on hot, sunny days and allows soil moisture to evaporate. As ...

Well, for starters, because bristlecones live where practically nothing else can, little competition exists for water and nutrients ... of dead bristlecone needles in a landscape where trees ...