( ( These factors ) ( ( have ( ( a ( greater influence ) ) ( on ( ( rooting ( than ( ( any tendency ) ( of ( a tree ) ) ) ) ) ( to ( develop ( a ( ( characteristically ( ( deep or ) shallow ) ) ( root system ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT These) (NNS factors)) (VP (VBP have) (NP (NP (DT a) (JJR greater) (NN influence)) (PP (IN on) (S (VP (VBG rooting) (PP (IN than) (NP (NP (DT any) (NN tendency)) (PP (IN of) (NP (DT a) (NN tree))))) (S (VP (TO to) (VP (VB develop) (NP (DT a) (ADJP (RB characteristically) (JJ deep) (CC or) (JJ shallow)) (NN root) (NN system)))))))))) (. .)))
These factors have a greater influence on rooting than any tendency of a tree to develop a characteristically deep or shallow root system.
(ROOT (S (NP (JJ Deep) (NNS roots)) (VP (MD will) (ADVP (RBS best)) (VP (VB prevent) (NP (DT a) (NN tree)) (PP (IN from) (S (VP (VBG being) (VP (VBN blown) (PRT (RP over)) (PP (IN by) (NP (JJ high) (NNS winds))) (PP (IN during) (NP (DT a) (NN storm))))))))) (. .)))
Deep roots will best prevent a tree from being blown over by high winds during a storm.