The influence of different concentrations of paclobutrazol(PP333)on anatomical structure of two types of turfgrasses,the cool season perennial ryegrass(Lolium perenne L.)and warm season grass Manila(Zoysia matrella),was studied by foliage spraying.The results showed that the treatment with two different concentrations of paclobutrazol changed the anatomical structures of two turfgrasses.Compared with other treatment concentrations,the blister cell length of the leaves of the two turfgrasses was the longest ...