Studies On Dynamic Variance Of Arteannuin Content In Artemisia Annua L.Breeding Lines

23 lines was used in this research . Each line's biologic character has been described and the difference of Arteannuin content and its dynamic variance in different breeding lines have be compared, then the stability of morphological character and Arteannuin content of those breeding lines. The research also stuied on the correlative actors with Arteannuin content.By the way of selection breeding, individual in each breeding line has show the same charater in both morphological character and growth duration.The plant of Artemisia annua L.with great height has low Arteannuin content. Plants with purple stem, big knot spacing, narrow included angle and low Chorophyll content have high Arteannuin content.Between and inner breeding lines,Arteannuin content changes in wide range. By pedigree method,high-quality individual was selected each year,the percentage of high Arteannuin content plant increased year by year,so did the average Arteannuin content of Artemisia annua L breeding lines.Arteannuin content also varied base on the origin .Family J has the higher average Arteannuin content (0.622%)then other three family and Family Q has the lowest Arteannuin content (0.456%), Family C (0.533%)and Family G (0.520%)are in the middle place.S excellent lines were gained by selection breeding in 2004, they are lines of J-5, J-2, GX-14, J-1, C-6 and C-2. These lines have relatively high Arteannuin content and small variance coefficient, besides morphological character is almost the same between the individuals of the same breeding line.High- Arteannuin content-Artemisia annua L. cultivar(≥10‰) would be gained by further reserch.