Collection, Classification And Evaluation Of The Cultivars Of Rosa Multiflora

Rosa multiflora. cultivars were collected from XinJiang, Henan province and Rizhao and Tai'an of Shandong province, Garden of Rosa multiflora. Germplasm Resource was builted in Tai'an. Then identifying them on the base of morphological taxonomy, palynology, numerical taxonomy and isozyme analysis.First, 37 morphological index were choosed and coded. On the base of it, numerical taxonomy first did R-cluster analysis. In the result, we can see that characters of flower, leaf and so on, have been chosen rationally. Among the characters, the two group of characters were significantly correlated, one is the ratio of length to width of bud, stamen petaled or not; the other is the statement of branch and calyx turn back or not. So we can choose the easily testabiled character from the two groups. This can not only save the load very in the future, but also avoid the fussy and repeated data analysis in a sense.In order to explain relations of these cultivars, palynology and isozyme analyses were further made. The cultivars' pollens were observed with electronic microscope. The conclusion displayed that the pollens of Rosa multiflora. are very similar in morphology. Most of them are of long sphericity, of radiate symmetry. The sight of equator is ellipse or long ellipse. Most of them have triangle round polar side, have three broad and shallow budding channels distributing in a round circle averagely and all of them belong to N₃P₄C₃ according to Erdtman's NPC classification system. Most of cultivar's pollen has striation veins or cockle-wavy-form veins and number and diameter of holes are different. Fourteen pollen indexes were used in the principal component analysis and then they are used in the following cluster analysis. The result showed that the difference of the pollens was not unanimous with...