( ( ( Know ( ( the difference ) ( between ( primary ( and ( secondary meristems ) ) ) ) ) ) ( in ( leaf cuttings ) ) ) . )
(ROOT (NP (NP (NNP Know)) (NP (NP (DT the) (NN difference)) (PP (IN between) (NP (JJ primary) (CC and) (JJ secondary) (NNS meristems)))) (PP (IN in) (NP (NN leaf) (NNS cuttings))) (. .)))
Know the difference between primary and secondary meristems in leaf cuttings.
(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)))) (. .)))