Study on the flowering dynamic,pollen viability and stigma receptivity of Kochia prostrate Comparison on floral dynamic, pollen viability and stigma receptivity between Chirita guilinensis and Chirita baishouensis Floral Dynamic and Mating System of Diploid Allium caeruleum from Tianchi,Tianshan Mountains Characteristics of floral dynamic and breeding system of Lycium ruthenicum Comparative Studies on Floral Dynamics and Breeding System Between Eleutherococcus senticosus and E.sessiliflorus Floral Dynamic and Mating System of Diploid Allium caeruleum from Tianchi,Tianshan Mountains