( Seed ( dormancy ( ( is ( defined ( as ( ( a seed ) ( failing ( to ( ( germinate ( ( ( under ( ( environmental ( conditions optimal ) ) ( for germination ) ) ) , ) normally ) ) ( when ( ( the environment ) ( is ( at ( ( a ( suitable temperature ) ) ( with ( proper ( soil moisture ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) ) )
(ROOT (S (NP (NN Seed)) (ADVP (RB dormancy)) (VP (VBZ is) (VP (VBN defined) (PP (IN as) (NP (NP (DT a) (NN seed)) (VP (VBG failing) (S (VP (TO to) (VP (VB germinate) (PP (IN under) (NP (NP (JJ environmental) (NNS conditions) (NN optimal)) (PP (IN for) (NP (NN germination)))) (, ,) (ADVP (RB normally))) (SBAR (WHADVP (WRB when)) (S (NP (DT the) (NN environment)) (VP (VBZ is) (PP (IN at) (NP (NP (DT a) (JJ suitable) (NN temperature)) (PP (IN with) (NP (JJ proper) (NN soil) (NN moisture)))))))))))))))) (. .)))
Seed dormancy is defined as a seed failing to germinate under environmental conditions optimal for germination, normally when the environment is at a suitable temperature with proper soil moisture.
(ROOT (S (NP (NN Seed)) (ADVP (RB dormancy)) (VP (VBZ ensures) (SBAR (IN that) (S (NP (NNS seeds)) (VP (VBP germinate) (ADVP (RB only)) (SBAR (WHADVP (WRB when)) (S (NP (NP (NNS conditions)) (PP (IN for) (NP (JJ seedling) (NN survival)))) (VP (VBP are) (ADJP (JJ optimal))))))))) (. .)))