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Observation and Quantification of Mating Behavior in the Pinewood Nematode, Bursaphelenchus xylophilus
Published on: December 25, 2016
[Comparative study on main economic characters of different populations of Pinellia ternata in China]
Jun-yi Zhang1, Qiao-sheng Guo, Xin-rong Wei
1Institute of Chinese Medicinal Materials, Nanjing Agriculture University, Nanjing 210095, China.
Objective:
To analyze the content of guanosine, total alkaloid and individual yield of Pinellia ternata from different populations in China and evaluate its quality.
Method:
Reversed-phase high-performance liquid chromatography (HPLC) was used to determine the content of guanosine. The content of alkaloid was determined by ultra violet spectrophometry. The results were analyzed by SPSS software.
Result:
The contents of guanosine and total alkaloid in P. ternata were 0.0136% -0.0264% and 0.0155% -0.0652% respectively. Individual yield was 0.5536-2.9740 g. All of the populations could be classified into 3 types through hierarchical cluster analysis.
Conclusion:
There exist significant differences in the content of guanosine, total content of alkaloid and individual yield of P. ternata from different populations. It is suggested that breeding and selection for type II of P. ternata should be strengthened.
