Seed biological characteristics and seedling growth in Glycyrrhiza uralensis from two provenances in Mongolia / 中草药

Objective Effect of provenance on seed biological characteristics and seedling growth in Glycyrrhiza uralensis was studied to indicate the important role of provenance in standardization production of traditional Chinese medicinal materials.Methods Indexes such as 1 000-seed weight,water content,seed capsule penetration,germination percentage,and germination potency of the seeds from various resources were determined by general ways.Growth indexes of young seedling and one-year seedling were determined.Results Between Shanghaimiao provenance and Bayinwusu provenance,1 000-seed weight of G.uralensis in Shanghaimiao was bigger,which was 12.3 mg for the former and 11.7 mg for the latter;water penetration of seed capsule was stronger in Bayinwusu and conductance rate was twice as much as it in Shanghaimiao.Shanghaimiao seed bearing storage and seed vigor were stronger and hard seed rate was higher.Germination percentage and germination potency of untreated seed in Bayinwusu was higher than that of Shanghaimiao,but lower after treatment.Germination percentage and germination potency of smaller seeds was the highest between the two different provenances in both the untreated and treated seeds.In growth indexes of two provenances,young seedling got a significant and the most significant difference.Growth index in Shanghaimiao was higher a little,which didn't get to an obvious level.Conclusion The provenances have an effect on physical characteristics,seed capsule penetration,and germination properties;provenance and seed size have an obvious effect on young seedling growth but have not any effect on one-year seedling growth and biomass.

Norms of the Piers-Harris Children's Self-concept Scale of Chinese Urban Children / 中国心理卫生杂志

Objective: To develop the norm of Piers-Harris Children's Self-concept Scale (PHCSS) in Chinese urban children and test the reliability and validity. Method: A total of 1698 children with the mean age 12?3 year-old (846 boys and 852 girls) from 20 cities in China completed the scale. Results: The test-retest reliability, split-half and Crobach were in 0.695～0.858, the correlation between each item score and total score were in 0.078～0.467, showed better item differentiation except for 3 items. The validity was perfect, represented by significant correlation (r=0.051～0.353) between the score and Conners Parent Symptom Questionnaire and Teacher Rating Scale. Conclusion: The results demonstrate the scale are suitable for demands of psychometrics and applicable in Chinese children.