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This experiment, red soil, yellow soil, black soil and white clay soil of four different types of culture media, growth, physiological and biochemical comparative study of artemisinin content of Artemisia annua (Artemisia annua L.) to explore the most appropriate Artemisia annua The growth of the soil. The results are as follows: 1, in the growth, the earliest emergence time planting in the black soil of Artemisia annua, followed by yellow soil, and finally white clay; squaring time by black soil of the latest lateritic red earth and white clay earliest ; grown in the black soil of the Artemisia annua plant height, stem diameter, number of branches, crown and other indicators of the growth of better late in the budding stage, long growing season, the final biological highest yield. Grown in yellow soil on the Artemisia annua its growth characteristics with black soil equivalent biomass is also high, second only to the black soil. Artemisia annua growth and poor grows in the red earth and white clay, biological yield was significantly lower than the previous two soils Artemisia annua. Has a significant positive correlation between the yield and stem diameter and crown. 2, physiological and biochemical aspects, planting in the black soil of Artemisia annua, the chlorophyll content of the most stable, the entire growth period ranged from a minimum, that grown in the black soil of Artemisia annua aging slower; Artemisia annua cultivation in yellow soil, chlorophyll content decreased earlier, but in the early growth stage, the chlorophyll content is relatively high; cultivation of Artemisia annua each soil chloroplast Ca 2 -ATPase (Mg 2 ) activity and soluble protein content and chlorophyll content trends; while total soluble sugars and polysaccharides content changes consistent performance for higher cultivation in yellow soil, black soil is low, and its change is different from the protein and chlorophyll, because in there is a very high content of late; total nitrogen content to the highest black soil, total phosphorus and total potassium content of the final to the highest of yellow soil. From aging indicators, planted in the black soil of Artemisia annua, lower POD activity, CAD, SOD activity, MDA content is low, slow aging, Artemisia annua cultivation in yellow soil POD activity, SOD activity The faster aging white clay, but the content of MDA highest. This test uses ultraviolet spectrophotometry in different parts of the artemisinin content, the results showed that planted in white clay of Artemisia annua are the highest in the leaves, buds or seeds, artemisinin content, followed by yellow soil, the lowest The black soil. Per unit area on the artemisinin production affected by two factors, namely the total biomass per unit biomass artemisinin content. From the above analysis shows, planted in a white clay Artemisia annua, artemisinin content highest, but the total biomass is too low; while black soil biomass, artemisinin content was the lowest; planting only in yellow soil Artemisia annua either total biomass or artemisinin content were higher. Therefore, the test results that the harvest the purpose of Artemisia annua cultivation of artemisinin, should choose the yellow soil. Meanwhile, two peak periods throughout the growing season leaf artemisinin content, that is the end of July and mid-September, taking into account the bud artemisinin content leaves content quite, and in mid-September organisms much more than the end of July, the biomass Therefore, the test is recommended Artemisia annua best harvesting period in mid-September, when plants just squaring.
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