[Effect of organic fertilizer and mineral fertilizer on the tuber yield of Curcuma longa L].

Regression method of orthogonal conic substitution with factors was employed to build up the tuber models for yield, quality and benefit. Three main measures affecting the tuber yield, quality and benefit were analyzed by these mathematical models. The effect of agronomic measures on the tuber yield is human and livestock excreta, rape cake > Ca3(PO4)2 > KCl.

[Patterns of systematic development for the resources of traditional Chinese drugs and herbs in the Three Gorges Reservoir areas].

Based on the comprehensive survey, the status and countermeasures of systematic development for the resources of traditional Chinese drugs and herbs in the rural exploitative emigration and eco-agricultural economy in the Three Gorges Reservoir Areas are put forth constructively.

[Curcuma longa L. tuber yield simulation model and its application under combined agronomic measures for good-quality, high-yield and obvious economic results].

A design of second order orthogonal rotative regression was developed and field tested, and the tuber models for yield, quality and benefit were simulated and built. The effect of agronomic measures on the tuber yield is plant density > phosphorus > sowing date > nitrogen > potassium. There is a clear interrelation effect among agronomic measures.

[Folk medicine of the Qiang nationality].

Based on a two-year investigation of folk medicine of the Qiang Nationality, systematic studies have been made on its formation and development, specific methods of physical therapy and experiences and features of clinical application.

[On the conservation and regeneration of Taxus resources].

In recent years, the taxol isolated from the stem bark of some plants of Taxus has been widely as an antitumor agent. But the development of taxol is limited by the scarcity of wild Taxus resources. This paper seeks to discuss the ways to conserve and promote the regeneration of these resources.

[Comparison on the chemical constituents of chuanhonghua I with jianyang honghua].

Based on the qualitative reaction of chemical constituents and TLC, the chemical constituents of Chuanhonghua-I were found similar to those Jianyang honghua. The effective constituents, safflower haematochrome and safflower yellow contents of Chuanhonghua-I, meet the standards of Chinese Pharmacopoeia (Ed. 1990).

[Restricting effects of geologic background system on genuine crude drugs in Sichuan].

The distribution, growth, output and quality of genuine crude drugs are restricted by geologic background system (GBS), whose extensional vector system "rock-->soil-->medicinal plants" accomplishes the unity of geological grand cycle and biological pulmonary circulation. This article describes how genuine crude drugs in Sichuan, such as Coptis chinensis, etc. for example, are restricted by GBS.

[Determination of berberine in Phellodendron chinense Schneid and its processed products by TLC (thin layer chromatography) densitometry].

Berberine from crude and processed Phellodendron chinense was determined by UV TLC densitometry. The results indicate that the content of berberine in processed products is 11.8% to 98% less than that of the crude drug.

[Study on economic NPK(nitrogen-phosphorus-potassium)-requirements for medicinal safflower].

A design of second order orthogonal rotative regression was developed and field tested, and a model for obtaining 18kg/mu dry flower yield was simulated and built according to several better combinations based on the model of total safflower dry flower yield. The optimal NPK-requirements for obtaining the above 18kg/mu dry flower yield are N:6-6.5kg/mu, P2O5:10.

[Medicinal plant resources of Dendrobium in Sichuan Province].

Eleven species of Dendrobium grown in Sichuan Province were studied including their classifications and distributions. All of them are used as the merchandise Shihu. Among them, there are 3 species which are found in Sichuan for the first time and 2 new species whose medical effects are described here in.

[Contents of free amino acids and water-soluble carbohydrates in safflower plant at different stages of growth].

As closely related to the development of plant organs, the contents of free amino acids and water-soluble carbohydrates in safflower plant vary with the course of growth. The ratio of the two contents rise with the growing periods, reaching maxima in the later stages of growth.

[Systematic concept and development model for the production base of Gynostemma pentaphyllum (Thunb.) Madino].

Based on the theories and methods of systematic engineering, the economic, ecological and social benefits of the whole set of regenerating techniques for Gynostemma pentaphyllum are evaluated comprehensively under the consideration of modern agroforestry and stereoscopic agriculture. As a result of the evaluation an optimal model of artificial complex ecosystem circulation for the agricultural-forestry-medicinal materials in the production base of Gynostemma pentaphyllum is selected.

[Culture techniques of Asarum sieboldii Miq].

Asarum sieboldii was domesticated in Sichuan, China. The rational planting density was selected according to this study. In the deep, loose and fertile soil, it grows well under semisunlight.

[Agronomic standardization of Gynostemma pentaphyllum (Thunb.) Makino].

In this paper, the simulation models for 3 main agronomic measures, plants/mu, cuttage date and supplement of nitrogen that affect the yield and economic effect of Genostemma:pentaphyllum, are analyzed by the quadratic orthogonal rotative regression design. As a result of the analysis optimal agronomic combination models are suggested.

[Intercropping techniques for Gynostemma pentaphyllum (Thunb.) Makino].

By the grey correlational analysis and AHP method, the economic, ecological and social benefits of some combination models for intercropping Gynostemma pentaphyllum are evaluated. As a result of the evaluation optimal combination models and management measures are presented.

[Studies on the antitumor effect of Clerodendrum bungei Steud or C. foetidum Bge].

Clerodendrum B(I) at dosage of 100g/kg ip or sc for 7 days was shown to have antitumor effect on hepatic carcinoma and sarcoma 180 in mice. In the mean time, 100g/kg sc of (I) interrupted 3H-TdR incorporation into DNA of sarcoma 180 cells in mice, 100, 10g/kg sc of (I) could suppress the phagocytic activity of the peritoneal macrophage against the CRBC (chicken red blood cells) in mice, 100g/kg sc of (I) also made the production of serum hemolysin less than one half of that of the control in mice immunized with SRBC. Clerodendrum C at 100g/kg could inhibit the growth of hepatic carcinoma in mice.

[Preliminary studies on medicinal plants of Corydalis in Sichuan].

This paper reports the species, distribution and medical uses of Corydalis in Sichuan Province, of which 3 species e.g., Corydalis linstowiana and C.

[Relationship between illumination and growth of the stroma of Cordyceps sinensis (Berk.) Sacc].

The growth of the stroma of Cordyceps sinensis largely depends upon the illumination in its growth period. By increasing illumination time and light intensity, its growth height can be controlled, growth rate slowed down and the corrosion time of larva body of host insect prolonged. Ultraviolet light is able to affect the growth of stroma too.

[Studies on the chemical components from leaves of Luffa cylinderica Roem].

Three compounds were isolated from the leaves of Luffa cylinderica Roem. Their structure have been identified as 21 beta-hydroxy-gypsogenin (L-2), 3-O-beta-D-glucopyranosyl-arjunolic acid (L-8) and 3-O-beta-D-glucopyranosyl-21-beta-hydroxyhederangenin (L-10), respectively, by spectroscopic (IR, 1HNMR, 13CNMR, EI-MS and FAB-MS) and chemical methods. L-2 and L-10 are new compounds.