Study on Growth and Physiological Characteristics of Catalpa bungei Clones
To provide a scientific basis for choosing superior Catalpa bungei C.A.Mey clones,the growth and physiological indexes of 19 C.bungei clones were studied and analyzed.The main results showed that there were significant differences in tree height,leaf length,leaf width,aspect ratio and petiole length,and obvious differences in diameter at breast height (DBH) and chlorophyll SPAD value of different C.bungei clones.There was very significant positive correlation between tree height and chlorophyll SPAD value,specific leaf weight.There was significant positive correlation between DBH and leaf length,leaf width,very significant positive correlation between DBH and chlorophyll SPAD value.Taking three indexes including tree height,DBH and chlorophyll SPAD value,9-1,07-5-8-17,07-Y27-4 and 07-5-8-20 clones were excellent according to aluster analysis on 19 C.bungei clones.
NETL
NSTL
万方数据
维普
