The Impact Of Plant Secondary Compounds On The Choice Of Calliptamus Italicus (L.)' Food

The plant secondary compounds has specifically effects on Calliptamus italicus (L.) food choice. Based on the volatile oil analysis by GS-MS of Artemisia frigida Willd.,Seriphidium santolinum (Schrenk) Poljak.,Medicago falccata L. and Melilotus officinalis (L.) Desr. prefered by Calliptamus italicus which is a kind of dominant species, and mensurated Calliptamus italicus olfactory response to four plants of volatile oil. At the same time distilled four plants of the total flavonoids with alcohol, the correlation is analysed between Calliptamus italicus'food fecthing and the total flavonoids content. The main results are as followed:1. Calliptamus italicus prefer to the four plants of which volatile oil the majority of the chemical compositions are of aromatic compounds, longchain alkanes, alkenes and heterocyclic compounds. Artemisia frigida aromatic compounds more for 39.07%. Melilotus officinalis contains relatively high alcohol content 49.24%. Artemisia frigida, Medicago falccata and Melilotus officinalis volatile oil content we re 3.82%, 1.74%, 1.051%, 0.897%.2. Secondary compounds of four plants affected preference of Calliptamus italicus to some extent. Artemisia frigida (56%) was more at tractive for Calliptamus italicus in olfactometer than any other crops tested, and then Seriphidium santolinum (36.12%)and Medicago falccata (30.47%) Melilotus officinalis was repellent for Calliptamus italicus. The olfactory preference on Artemisia frigida, Medicago falccata and Melilotus officinalis consisted with fooding preference in these plants.3. Calliptamus italicus choosed the four plants for the sequence size of the appetite Artemisia frigida,Seriphidium santolinum,Medicago falccata,Melilotus officinalis There are significant differences to the selectivity of different four plants for Calliptamus italicus's sex on the Calliptamus italicus fecthing the four plants significantly affected by Seriphidium santolinum> Artemisia frigida > Medicago falccata> Melilotus officinalis. There was a significant difference to Medicago falccata and Melilotus officinalis, but Artemisia frigida and Seriphidium santolinum were no significant difference. Chemical analysis indicates that there were significant differences among the total flavonoids in the leaves of plants. And with selective four plant were significant negative correlation between male and female of appetite and plant flavonoid content into negative correlation, the coefficient -0.894 and-0.601, respectively. Between male and female to flavonoids is the degree of preference.