PJB-2018-13
Comparison on growth dynamic and indicator components of different germplasms of Lycium ruthenicum
Yehong Guo
Abstract
This study report a comparison of growth dynamics, chlorophyll content of fresh leaves, main components content in fruits -including polysaccharides, total flavonoids, anthocyanins and proantho cyanidins, moisture, total ash, and extract for three germplasm samples of Lycium ruthenicum. Plant height, stem diameter, and branch number of the three germplasm samples all increased with time, but the growth rate was different in each case. Among the materials tested, Qinghai strains showed the maximum plant height, on August 31st, while the average height was 104.87 cm. Minqin Qingtuhu strains showed the largest stem diameter, on August 31st, while the mean value was 1.06 cm. However, the branch number of Wuwei, the native wild type Lycium ruthenicum, decreased after August 8th. Minqin had the highest chlorophyll content (39.92 mg/g). Qinghai had the highest chlorophyll b content (chlorophyll b and total chlorophyll were 13.05 mg/g and 51.96 mg/g, respectively). Polysaccharide, anthocyanin content, moisture content, and amount of extract from Qinghai were highest. Total flavonoid and ash contents were highest in Wuwei strains. Lycium ruthenicum introduced from Qinghai were the dominant strains and had better nutritional properties than the other two strain collections. Overall, results indicate that Qinghai Lycium ruthenicum is suitable for planting in the Wuwei area.
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