Research on toxicity characteristics in Evodia Fructus of different orgins and producing areas / 中国中药杂志

<p><b>OBJECTIVE</b>To study the toxicity of water extracts from the fruits of Evodia Fructus in different producing areas.</p><p><b>METHOD</b>Compare the toxicity of the extracts from different Evodia Fructus on mice by the methods of acute and subacute toxicity test. The mice were given the extracts for 1 d to test the maximal tolerance dose (MTD) or maximal dose and observe the acute toxic symptoms; The mice were given the extracts for 15 d and then detected the level of serum alanine aminotransferase (ALT), aspartate aminotransferase (AST) and triglyceride (TG). The liver index was calculated, and the liver histological changes were investigated.</p><p><b>RESULT</b>The MTD of water extracts from the fruits of Evodia Fructus is 62, 44.8, 35.84 g x kg(-1); the MTD of Evodia Fructus is 56, 44. 8, 35.84 g x kg(-1); the maximal dose of Evodia Fructus is 60, 54, 45 g x kg(-1). The toxic symptoms of the mice which had been given the nine samples were almost consistent. Compared with the control group in subacute toxicity test, the level of serum ALT and the liver index were all increased. The liver histological were changed.</p><p><b>CONCLUSION</b>When water extracts from the fruits of Evodia Fructus are given to mice one or more times. It may be toxic and induce liver damage. There is no significant correlation between the toxicity and Evodia orgins, while the toxicity seems to be more closely related to the producing area.</p>

Effects of micronutrient fertilizer application on yield and quality of Aconitum carmichaeli / 中国中药杂志

<p><b>OBJECTIVE</b>To study the effects of Fe, Zn, B and Mn fertilizer with different ratio on the yield and quality of Aconitum carmichaeli.</p><p><b>METHOD</b>Field experiment with the uniform design was applied, the yield and the contents of the total alkaloids and diester-alkaloids were measured.</p><p><b>RESULT</b>Fe, Zn, B and Mn fertilizer of appropriate ratio could promote the growth of vegetative organs, increase the biomass, the content of alkaloids and the yield of Aconite significantly. Fe, Zn fertilizer of highly concentrated ratio increased the proportion of first sub-roots, but inhibited the growth of other vegetative organs, the number of roots was less than that with other treatments, so it was not conducive to the formation of production. High concentration of Mn was not conducive to the growth of underground of Aconite, its number of sub-roots was fewer, but the number of third sub-roots was more than that with other treatments, the yield was low. The yield treated with low concentration of B was 10% higher than that with high concentration, and the high concentration of B was not conducive to increase the content of the alkaloids. Among these treatments, The fourth treatment was the optimal combination, of which the volume of sub-roots was the largest and the most homogeneous, the growth of the vegetative organs was better and the accumulation of dry matters was more, the yield of this treatment was 10,754.7 kg x hm(-2), which was increased by 14.9%, and the content of alkaloid was increased by 13.9%.</p><p><b>CONCLUSION</b>The ratio of 4 is the best treatment for high yield and quality cultivation of Aconite.</p>

Effect of different seminal rhizomes on yield and quality of Curcuma longa / 中国中药杂志

<p><b>OBJECTIVE</b>To study the effect of different seminal rhizomes on the growth, quality and quantity of Curcuma longa root.</p><p><b>METHOD</b>Single factor randomized block design was applied, plant samples were collected and investigated periodically, and dry weight, production and the main active ingredient content were measured.</p><p><b>RESULT</b>The difference seminal rhizomes affected the growth, quality and quantity of C. longa root.</p><p><b>CONCLUSION</b>The bigger and stronger rhizomes should be chosen as seeds.</p>

Preliminary study of fertilizer effect on yield and quality of Fritillaria ussuriensis / 中国中药杂志

<p><b>OBJECTIVE</b>To preliminarily study the effect of fertilizer methods on the yield and quality of Fritillaria ussuriensis.</p><p><b>METHOD</b>Through the investigation of the available nitrogen, phosphorus, potassium in soil fertility of F. ussuriensis planting field as well as the measurement of total nitrogen, phosphorus, potassium contents in bulbus of F. ussuriensis, the balanced fertilization plan for cultivation of F. ussuriensis was made.</p><p><b>RESULT</b>The optimal fertilizing amount was 13.0 kg x m(-2) pig dung, or 5.5 kg x m(-2) deer dung and 6.5 kg x m(-2) pig dung, or 11.0 kg x m(-2) deer dung.</p><p><b>CONCLUSION</b>Effective fertilizing may increase significantly the yield and quality of F. ussuriensis.</p>