[Changes of growth and yield characters of five varieties (lines) of tea-applied chrysanthemum under different planting dates and pinching patterns].

To identify the high yield planting date and pinching pattern, we compared the yields of five new varieties (lines) of tea-applied chrysanthemum, the ‘Suju 10’, ‘Suju 12’, ‘Suju 13’, ‘CH1-44’ and ‘CH5-13’. A field experiment with split-split plot design was carried out. The main plot treatments including three (early, middle and late) planting dates, split-plot treatments including 5 new varieties (lines), and split-split-plot treatments including four different kinds of pinching schemes.

[Comparative Study on the Four Kinds of Flavonoids from Four Different Varieties of Dendranthema morifolium].

Objective: To establish a high phase liquid chromatography method of the content in quercetin,luteolin,apigenin,acacetin,and to compare the difference of content from four different varieties of Dendranthema morifolium in simultaneously.

Methods: The UPLC methods were adopted,and the chromatographic column was Waters ACQUITYUPLC; the column was BEH C18（ 50 mm ×2. 1 mm,1.

[Effect of Crop Rotation and Biological Manure on Quality and Yield of "Chuju" Chrysanthemum morifolium and Continuous Cropping Soil Enzyme Activities].

Objective: To investigate the effects of chrysanthemum-wheat rotation system and biological manure on continuous cropping soil enzyme activities and quality and yield of Chrysanthemum morifolium.

Methods: Field experiments were conducted at the research base of Anhui Jutai Chuju Chrysanthemum morifolium Herbal Technology Co. , Ltd.

[Effects of crop rotation and bio-organic manure on soil microbial characteristics of Chrysanthemum cropping system].

We conducted a field experiment to evaluate the effects of rotation system and bio-organic manure on soil microbial characteristics of Chrysanthemum cropping system. Taking Chrysanthemum morifolium Ramat and wheat as experimental plants, treatments under Chrysanthemum continuous cropping system (M1), conventional Chrysanthemum-wheat rotation system (M2), and Chrysanthemum-wheat rotation system receiving bio-organic manure application of 200 kg · 667 m(-2) (M3) were designed. Soil chemical properties, soil microbial biomass carbon (MBC) and nitrogen (MBN), and the amounts of different types of soil microorganisms were determined.