Objective To choose a best cultivar by comparing the content of total flavonoid and naringin between different cultivars of Citrus grandis 'tomentosa'.Methods The content of total flavonoids was determined by spetral photometric analysis.The content of naringin was determined by HPLC.Results The content of total flavonoid was 19.24 % and 18.06 %,and naringin content was 11.72 % and 12.38 % in the cultivars from Dachaling and Fengwei respectively,which were much higher than the other cultivars.Conclusion The contents of total flavonoid and naringin were different in different cultivars of Citrus grandis 'tomentosa'.The cultivars of Citrus grandis 'tomentosa' from Dachaling and Fengwei have the best quality.

Sixty-fourth patients with vascular dementia were recruited in the study and randomly assigned in rehabilitation (medication plus rehabilitation)and control group (medication alone).The treatment period lasted for 12 weeks,the scorings of mini mental statement examination(MMSE) and activity of daily living scale (ADL) were compared before and 4,8,12 weeks after treatment in both group.The scorings of MMSE and ADL in rehabilitation group and control group were both improved after treatment(P ＜0.05),but the scorings in rehabilitation group were better than those in control group(P＜0.05).

OBJECTIVETo study the effects of nitrogen (N), phosphorus (P2O5), potassium (K2O) and organic compound fertilizer (OF) on spicas biomass and yield of Prunella vulgaris in order to provide a theoretical basis for good agriculture practice (GAP).

METHODField plot experiments with a 4-variable quadratic orthogonal rotation combination design were adopted, and a function model of spicas yield in P. vulgaris was established.

RESULTThe model analysis showed that spicas yields of P. vulgaris were significantly influenced under the N, P2O5 and K2O applications, among there factors, N had the greatest effects on spicas yield of P. vulgaris, the next was P2O5 and K2O, OF had the smallest effects on spicas yield. At the lower fertility levels, the spicas yields of P. vulgaris were improved along with the increasing of N, P2O5, K2O and OF applications, but the spicas yields decreased when N, P2O5, K2O and OF were applied too much.

CONCLUSIONIn this experiment condition, the spicas yields of P. vulgaris could reach to 722 kg x hm(-2) when the fertilizer rates were N 303. 9-335.1 kg x hm(-2), P2O5 432.5-500.6 kg x hm(-2), K2O 206.6-240.2 kg x hm(-2), OF 2 312.5-2 687.5 kg x hm(-2).

Agriculture ; methods ; Biomass ; Fertilizers ; analysis ; Nitrogen ; analysis ; metabolism ; Phosphorus ; analysis ; metabolism ; Potassium ; analysis ; metabolism ; Prunella ; growth & development ; metabolism

OBJECTIVETo study seed quality test, and establish seed quality classification standard of Prunella vulgaris.

METHODThe seed quality and planting quality of P. vulgaris from different population were measured and these indexes were analyzed by K-clustering.

RESULT AND CONCLUSIONThe seed purity, 1000 seeds weight, seed moisture content, seed viability of the seed of P. vulgaris from different population were measured, and the seed quality classification standard of P. vulgaris.

Cluster Analysis ; Drugs, Chinese Herbal ; chemistry ; classification ; standards ; Prunella ; chemistry ; classification ; physiology ; Quality Control ; Seeds ; chemistry ; classification ; physiology ; Water ; analysis