[Correlation analysis of major agronomic characters and the polysaccharide contents in Dendrobium officinale].
OBJECTIVE
In order to provide theoretical and technological basis for the germplasm innovation and variety breeding in Dendrobium officinale, a study of the correlation between polysaccharide content and agronomic characters was conducted.


METHODS
Based on the polysaccharide content determination and the agronomic characters investigation of 30 copies (110 individual plants) of Dendrobium officinale germplasm resources, the correlation between polysaccharide content and agronomic characters was analyzed via path and correlation analysis.


RESULTS
Correlation analysis results showed that there was a significant negative correlation between average spacing and polysaccharide content, the correlation coefficient was -0.695. And the blade thickness was positively correlated with the polysaccharide content, but the correlation was not significant. The path analysis results showed that the stem length was the maximum influence factor to the polysaccharide, and it was positive effect, the direct path coefficient was 1.568.


CONCLUSIONS
According to thess results, the polysaccharide content can be easily and intuitively estimated by the agronomic characters investigating data in the germpalsm resources screening and variety breeding. Therefore, it is a visual and practical technology guidance in quality variety breeding of Dendrobium officinale.
Lei
L
Zhang
Xi-Long
XL
Zheng
Dao-Shou
DS
Qiu
Shi-Ke
SK
Cai
Huan-Ming
HM
Luo
Rui-Yun
RY
Deng
Xiao-Jin
XJ
Liu
D000383:Agriculture / Q000379:methods; D018533:Biomass; D002681:China; D031667:Dendrobium / Q000033:anatomy & histology / Q000737:chemistry* / Q000254:growth & development*; D018515:Plant Leaves / Q000033:anatomy & histology / Q000737:chemistry / Q000254:growth & development; D018547:Plant Stems / Q000033:anatomy & histology / Q000737:chemistry / Q000254:growth & development; D011134:Polysaccharides / Q000032:analysis*; D013056:Spectrophotometry, Ultraviolet
D011134:Polysaccharides