The diversity analysis and improved varieties selecting of Eleagnus in Sichuan province

Abstract:

The Sichuan Eleagnus specimen database was constructed based on 2012 Elaeagnus plant specimens from Sichuan University Herbarium and Eleagnus information from Chinese Academy of Sciences（http://pe.ibcas.ac.cn/）. The results showed that there were 20 species and 2 varieties, of which 3 species (E. davidii, E. angustata and E. multiflora var. tenuipes) are endemic to Sichuan. E. umbellate, E. lanceolate and E. bockii are widely distributed in Sichuan, and their potential distribution areas were predicted by MaxEnt. The breeding system was constructed by AHP, Delphi and Yaahp10.0，which had three subsystems（medicinal, green ornamental and edible value）and 16 evaluation index（efficacy, specificity, distribution, medicinal parts, development status, life type, vertical distribution, flowering period, flowering length, fruit duration, fruit length, fruit yield, economic traits, nutrient richness, function, resource）.The analysis results showed that E. bockii,E. gonyanthes and E. lanceolate had the highest comprehensive application value. At the same time, the green ornamental value of the 20 species of Eleagnus was evaluated based on the green ornamental subsystem, and the results indicated that E. gonyanthes, E. bockii and E. henryi could give priority garden application.