( ( Germination rates ) ( ( slowed ( with ( decreasing ( water potential ) ) ) ) . ) )
(ROOT (S (NP (NN Germination) (NNS rates)) (VP (VBD slowed) (PP (IN with) (NP (VBG decreasing) (NN water) (NN potential)))) (. .)))
Germination rates slowed with decreasing water potential.
(ROOT (S (PP (IN As) (NP (NP (DT the) (NN temperature)) (PP (IN of) (NP (NN water) (NNS decreases))))) (, ,) (NP (DT the) (NN water) (NNS molecules)) (VP (VB slow) (PRT (RP down))) (. .)))