Breeding of New Lines of Ornamental Potted Chrysanthemum Flowering in Spring and Autumn and Index Evaluation based on Analytic Hierarchy Process
[Objective]The aim was to breed new potted ornamental chrysanthemum lines with flowering in spring and autumn,excellent traits,suitable for planting in southern China and good economic benefits.[Method]Twelve ornamental chrysanthemum cultivars were used as parents and 25 hybrid combinations were set with the breed target of flowering in double seasons and excellent traits.Growth conditions and phonological traits of offspring at different growth periods were recorded after propagation and new lines were screened using evaluation system based on Analytic Hierarchy Process(AHP).[Result]Twenty-five hybrid combinations produced 236 offspring.Twelve new lines with flowering in double seasons,good ornamental characters,stable traits and consistent flowering time were screened out based on Analytic Hierarchy Process(AHP).After practical production,these 12 new lines could be suitable for popularization and application in southern China.[Conclusion]It was simple obtain 12 new lines through hybrid breeding and evaluate based on Analytic Hierarchy Process(AHP).Moreover,it was easy to popularize these new lines.Flowering in spring and autumn could shorten the propagation cycle of chrysanthemum,increase the ornamental value,improve the land utilization rate,reduce production cost,and then promote the development and growth of chrysanthemum industry.
Ornamental potted chrysanthemumFlowering in spring and autumnHybridization breedingAnalytic Hierarchy ProcessNew lines