( ( ( Effect ( of ( ( Certain ( Alkali Salts ) ) ( on Growth ) ) ) ) ( of Plants ) ) . )
(ROOT (NP (NP (NN Effect)) (PP (IN of) (NP (NP (NNP Certain) (NNP Alkali) (NNP Salts)) (PP (IN on) (NP (NN Growth))))) (PP (IN of) (NP (NNP Plants))) (. .)))
Effect of Certain Alkali Salts on Growth of Plants.
(ROOT (S (NP (DT The) (NN word) (NN alkali)) (VP (VBZ comes) (PP (IN from) (NP (DT the) (JJ arabic) (NN al-qili))) (, ,) (S (VP (VBG meaning) (`` ``) (NP (NP (NNS ashes)) (PP (IN of) (NP (NP (DT the) (JJ saltwort) (NN plant)) (PP (IN from) (NP (NN salt) (NNS marshes)))))) ('' '')))) (. .)))