( ( Secondary ( shoot meristems ) ) ( ( ( were ( much less ) ) ( affected ( by ( day length ) ) ) ) . ) )
(ROOT (S (NP (JJ Secondary) (NN shoot) (NNS meristems)) (VP (VBD were) (ADVP (RB much) (RBR less)) (VP (VBN affected) (PP (IN by) (NP (NN day) (NN length))))) (. .)))
Secondary shoot meristems were much less affected by day length.
(ROOT (S (NP (NNS Roots)) (VP (VBP grow) (PP (IN in) (NP (NN length) (CC and) (NN width))) (PP (IN from) (NP (DT the) (JJ primary) (CC and) (JJ secondary) (NN meristem)))) (. .)))