[Comparative analysis on seedling growth dynamics and physiological indices of Bupleurum smithii var. parvifolium and B. scorzonerifolium].

With Bupleurum smithii var. parvifolium and B. scorzonerifolium as test objects, in order to provide a theoretical basis for the introduction and domestication of B.

[Effects of Different Altitudes and Sowing Dates on Direct Sowing Angelica sinensis Yield and Quality].

Objective: To study the effects of different altitudes and sowing dates on direct sowing Angelica sinensis biomass, yield and quality, and to provide a theoretical basis for Angelica sinensis direct sowing cultivation techniques.

Methods: Two factors trials were used to research the influence of altitude and sowing dates on yield and quality of direct sowing Angelica sinensis. The altitudes were located at 2500, 2000 and 1500 m, and the sowing dates were set up at autumn August 29, and Spring April 3 and April 24.

[Comparative study of growth potential on hardwood cutting of Lycium barbarum strains].

Objective: To lay foundation of strains selection through primary selection of 44 strains of Lycium barbarum.

Methods: Used the single plant selection.

Results: Screened out 22 strains of Lycium barbarum by preliminary determination of germination rates and seeding rates of hardwood cutting, the growth potential of 2009-26, 2009-21, 2009-17, 2009-29, 2009-2 were better than those of others strains.

[Effects of covering on growth potential and chlorophyll content of hardwood cutting of Lycium barbarum].

Objective: To study the effect of plastic film covering, straw covering, plastic film covering in greenhouse and no-covering cutting on growth and Chlorophyll content of Lycium barbarum hardwood cutting seedlings.

Methods: Single factor randomized block design method was used in this research.

Results: The effect of different covering treatments on germination rate, seedling rate and growth potential were all plastic film covering in greenhouse > plastic film covering > straw covering > no-covering cutting.

Involvement of cholinergic system in suppression of formalin-induced inflammatory pain by cobratoxin.

Aim: To investigate the analgesic effect of cobratoxin (CTX), a long-chain α-neurotoxin from Thailand cobra venom, in a rat model of formalin-induced inflammatory pain.

Methods: Inflammatory pain was induced in SD rats via injecting 5% formalin (50 μL) into the plantar surface of their right hind paw. CTX and other agents were ip administered before formalin injection.

[Study on effects of fertilizer on polysaccharide and flavonoids of Radix Hedysari in different growth stage].

Objective: To study the effects of fertilizer on polysaccharide content, flavonoids content and output of Radix Hedysari in different growth stage.

Methods: The content of polysaccharide and flavonoids in different part of Radix Hedysari was examined in different growth stage by using spectrophotometric method.

Results: Fertilizer could improve polysaccharide content of Radix Hedysari aerial part and total flavonoids content of root, increase polysaccharide accumulation amount of Radix Hedysari root in middle and late growth stage.

[Response of applying palygorskite and fertilization on growth rules of Radix Hedysari].

Objective: Study on the growth development and fertilizer requirement regularity of Radix Hedysari.

Methods: Adopted the field experiment, investigate the influence of Radix Hedysari by applying different amount of palygorskite and fertilization.

Results: The growth process of plant height and branch height of Radix Hedysari were divided into two stages, the stage from emergence to late July was fast growth phase, and the stage from late July was slow growth stage.

[Effects of palygorskite application on volatilization and leaching losses of urea nitrogen in loess soil].

By the methods of adsorption and soil column leaching, a laboratory simulation test was conducted to study the effects of palygorskite application on the volatilization and leaching losses of urea nitrogen in loess soil. Comparing with applying urea fertilizer alone, the addition of palygorskite could decrease the volatilization rate of soil urea N at peak time, with the ammonia volatilization loss decreased by 13.6%-15.

Suppression of complete Freund's adjuvant-induced adjuvant arthritis by cobratoxin.

Aim: Cobratoxin (CTX), the long-chain alpha-neurotoxin from Thailand cobra venom, has been demonstrated to have analgesic action in rodent pain models. The present study evaluated the anti-inflammatory and anti-nociceptive effects of CTX on adjuvant arthritis (AA) in rats.

Methods: Arthritis was induced by injection of complete Freund's adjuvant (CFA) in rats.

[Study on growth law of Glycyrrhiza uralensis under different planting density].

Objective: To study the growth of Glycyrrhiza uralensis under different planting density for providing theoretic evidence for reasonable planting density.

Method: The field experiment was designed by single factor randomized block.

Result: The plant height, root diameter, main root length and branches of main stem were all decreased with increasing planting density of G.

[Influence of humic acid fertilizer on biomass accumulation and quality of Angelica sinensis].

Objective: To study the influence of humic acid fertilizer on plant growth, assimilation base, dried biomass accumulation, yield, quality and disease infection of Angelica sinensis.

Method: Three kinds of humic acid fertilizer and an amino acid liquid fertilizer were tested in randomized groups at 1 level with 3 times repeat.

Result: T1 promoted plant and root growth effectively, increased dried biomass accumulation and fresh root average weight remarkably, the yield was increased, the content of ethanol extract was increased by 11.

[Effects of long-term fertilization on water-stable aggregates in calcic kastanozem of Loess Plateau].

The study on the size distribution of water-stable aggregates (WSAs) in calcic kastanozem of Loess Plateau after 27 years fertilization showed that compared with those of natural soil, the contents of > 0.25 mm WSAs in 0-10 cm and 10-20 cm layers of cultivated soil decreased by 21.35% and 38.

[Effects of nitrogenous phosphorus and potassium fertilizer on yield of Bupleurum scorzonerifolium].

Objective: To study the effect of different fertilizer assortment (nitrogenous, phosphorus and potassium) on Bupleuram scorzonerifolium yield.

Methods: Three factors were designed by quadratic regression and D-optimum designation.

Results: As far as the biomass concerned, the best design of fertilizer was N 120.

[Study on dynamic growth of Codonopsis pilosula].

Objective: To study on the dynamic changes of Codnopsis pilosula for the guidance of the field management.

Method: Using the random method the influences of the cultivating density and fertilizing weight at four different levels was observed.

Result And Conclusion: The dynamic changes of the biomass, growth period andbiological changes at different growth stages were found out.