Effects Of The Basic Soil Nutrients And Other 11 Different Inorganic Elements On The Yield And Quality Of Angelica Dahurica Var. Formosana

To study the effects of the basic soil nutrients and other 11 different inorganic elements on yield and quality of Angelica dahurica originated from Sichuan Province.The main agronomic traits on the yield and the content of imperatorin, isoimperatorin and other 11 different inorganic elements of A. dahurica gathered at 15 different spots of Suining in Sichuan Province was determined. And the basic soil nutrients and other 11 different mineral elements of the soil were analyzed. The effects of the basic soil nutrients and other 11 different inorganic elements on the yield and quality were analyzed through correlation analysis. At the same time,10 different A. dahurcia screened strains were cultivated under the same soil conditions in Yaan and Suining respectively to explore the yield, content of imperatorin and isoimperatorin of them. The main results are as follows:1. The difference of basic soil nutrients of different spots A. dahurica grew in was obvious in Suining. All the soil were weak alkaline, pH values ranged from 8.49 to 8.88, 8.68 in average. Organic matter contents were generally low, ranged from 10.15 to 25.16 g/kg, with the average of 15.12 g/kg. Total nitrogen levels were generally low, ranged from 0.72 to 1.68 g/kg,0.99 g/kg in average. The nitrogen contents were at a high level, ranged from 63.87 to 144.6 mg/kg, with an average of 96.88 mg/kg. Phosphorus contents were at a high level, ranged from 9.45 to 38.01g/kg,22.56 g/kg in average. Available potassium were in the moderate level, ranged from 32.28 to 138.4 mg/kg,68.93 mg/kg in average.2. The difference of other 10 different mineral elements of the different spots of soil A.dahurica grew in was also obvious at Suining. Of them, the content of Ca ranged from 19788.92 to 65651.16 mg/kg,51143.05 mg/kg in average. The content of Fe ranged from 24410.62 to 35147.12 mg/kg,27786.65 mg/kg in average. The content of Mn ranged from 248.25 to 674.99 mg/kg,558.73 mg/kg in average. The content of Mg ranged from 5986.33 to 17499.63 mg/kg,10636.64 mg/kg in average. The content of Pb ranged from 3.99 to 7.02 mg/kg,5.67 mg/kg in average. The content of As ranged from 1.50 to 5.86 mg/kg,3.33 mg/kg in average. The content of Zn ranged from 29.53 to 83.76 mg/kg, 59.71 mg/kg in average. The content of Cr ranged from 5.50 to 14.00 mg/kg,9.43 mg/kg in average. The content of Cu ranged from 12.53 to 25.13 mg/kg,18.40 mg/kg in average. The content of Hg ranged from 0.03 to 0.19 mg/kg,0.10 mg/kg in average. Cd could not be detected.3.The main agronomic traits of root, content of imperatorin, isoimperatorin and other 9 different mineral elements of the different spots of soil A. dahurica grew in were different in Suining. Of them, The root weights ranged from 10.60 to 23.25 g,16.36 g in average. Lengths ranged from 9.70 to 24.00 cm,18.75 cm in average. Circumferences ranged from 3.90 to 9.25 cm,6.96 cm in average. And the contents of imperatorin ranged from 1.29 to 5.62 mg/g,2.48 mg/g in average. Isoimperatorin contents ranged from 0.46 to 1.37 mg/g,0.88 mg/g in average. The contents of Ca ranged from 6423.92 to 10664.04 mg/kg,7928.53 mg/kg in average. The contents of Mg ranged from 2496.01 to 3499.30 mg/kg,2906.39 mg/kg in average. The contents of Fe ranged from 287.21 to 1423.53 mg/kg,728.78 mg/kg in average. The contents of Mn ranged from 17.73 to 69.39 mg/kg, 31.65 mg/kg in average. The contents of Cr ranged from 9.00 to 36.69 mg/kg,17.15 mg/kg in average. The contents of Zn ranged from 6.91 to 12.91 mg/kg,9.41 mg/kg in average. The contents of Cu ranged from 0.75 to 1.75 mg/kg,1.34 mg/kg in average; The contents of Pb ranged from 0.25 to 1.75 mg/kg,0.71 mg/kg in average. Cd and Hg could not be detected.4. Correlation analysis showed that the positive correlation between root length of A. dahurica and soil available P content, root circumference of A. dahurica and soil organic matter content, root weight of A. dahurica and soil available P and K contents were all significant. The soil total nitrogen content had negatively significant corratation with the content of isoimperatorin. The correlation between the imperatorin, isoimperatorin contents of A. dahurica and 11 other soil inorganicel elements were not significant. This showed that N, P and K content of soil had obvious relationship with the yield and quality of A. dahurica from Sichuan province. We should pay attention to manure N, P and K in production.5. The correlation between the soil inorganic elements and inorganic elements of Angelica dahurica were not significant. This showed that A. dahurica could regulated the content of inorganic elements through active absorption. The correlation between Ca and Fe, Ca and Mn, Ca and Pb, Ca and As, Fe and Mn, Fe and Zn, Mn and As of A. dahurica were very significant. The correlation between Ca and Zn, Fe and Pb, Fe and As, Mn and Pb, Pb and Zn, Pb and Cu content were all significant in A. dahurica. This showed that the absorption of Ca, Fe, Mn, Pb, As, Mn, Zn and most of the inorganic elements had good synergy.6.Ten different A. dahurcia screened strains were cultivated in the same field in Yaan. The results showed that all traits of this 10 strains had significant difference. The root lengths ranged from 15.38 to 29.36 cm,22.04 cm in average. Circumferences ranged from 2.10 to 3.94 cm, average 3.16 cm. Yields per plot ranged from 4.7 to 9.7 kg,7.3 kg in average. The contents of imperatorin ranged from 0.997 to 2.516 mg/g,1.739 mg/g in average. And isoimperatorin contents ranged from 0.473 to 1.036 mg/g,0.736 mg/g in average. The results also showed that all traits of this 10 different A. dahurica strains grew in the same field in Suining were also significant different. The root lengths ranged from 21.77 to 33.29 cm,26.23 cm in average. Circumferences ranged from 2.94 to 4.37 cm, with an average of 3.57 cm. Yields per plot ranged from 17.0 to 23.5 kg,20.40 kg in average. The contents of imperatorin ranged from 1.671 to 2.721 mg/g,20.250 mg/g in average. And isoimperatorin contents ranged from 0.644 to 1.458 mg/g,1.075 mg/g in average. It indicated that distinct A. dahurica var. formosana lines could also be attained through extensive selection.7.The main agronomic traits and the main effective constituents of 10 different strains of A. dahurica grew in Yaan and Suining were compared. It is easy to find that, the root of A. dahurica strain grew in Suining were longer than the same strain grew in Yaan,4.19 cm longer in average. The root of A. dahurica strain grew in Suining were thicker than the same strain grew in Yaan,0.41 cm thicker in average. The yield per plot of A. dahurica strain grew in Suining were higher than those grew in Yaan, increased 13.1 kg in average. The average of yield per plot of A. dahurica strains grew in Suining was 2.79 times as that in Yaan. And the imperatorin and isoimperatorin contents of 10 different strains of A. dahurica grew in Suining were higher than Yaan,0.521mg/g and 0.339 mg/g in average, respectively. This further showed that the environment factors had important effects on A. dahurica indeed, and A. dahurica could had higher yield and best quality under the environment of Suining.