Research On Flower Bud Differentiation And Facilitating Cultivation Of Autumn Chrysafnthemum

Chrysanthemum (Dendranthema grandiflorum) is a herbaceous flower of perennial root.It's a China-original plant and one of the China's top-ten traditional flowers. It has a long history of cultivating and high ornamental value. With the development of society , people didn't satisfy with single florescence of flowers any more . So , it is imperative to be supplied for the flowers anniversary. The essence of anniversary production is using some methods to make the plant type diversification.There is two ways: One is breeding,by carrying on the improvement of cultivar,enriching the resource.Another is using resistant cultivar and regulating florescence to achieve the same goal.The second is the main way in the flowers anniversary product.At present,the florescence of the heavy Autumn chrysafnthemum in Chongqing is Nov. to Dec. By regulating florescence, the heavy Autumn chrysanthemum can blossom ahead of time around the National Day. Not only can enrich the metropolis botanical garden landscape,but also can obtain more profits.Chose the two Autumn chrysanthemum cultivar ' shanchengzhiguang ' and ' jiumirong ' for experiment.through shading , the dwarfing, and so on to observe the growth process of chrysafnthemum flower bud and affect on florescence . Did A, B, C,and D four experiments on Each variety,each experiments dealt with 100 plants. A was placed under the steel-canopy(large plastic house) to ensure 45% of shading. B was placed in the open air with some shading,C under the the flower- shelf, D was also placed in the open air but no shading as contrastThis experiment plans through the...