Comparative Studies On Morphology And Anatomy Of Rhizomatous Forages In Triticeae

In this test the morphology and anatomy of the 6 kinds of rhizomatous in Triticeae(Leymus chinensis, L. secalinus, L. racemosus ,Elytrigia smithii cv. osana? E. smithii cv. arton?E.intermedia ) were studied. The result showed the type of seedling aerial organs belong to A, the type of subterraneous organs belong to B; the blooming stage is 3-15 days,the blooming of floret lasts 80-188 minutes. The florescence of Leymus chinensis startes earlier than the other 5 kinds of forages 15 days,the blooming sequeme of the floret is from bottom to top. Among the 5 kinds of forages ,the rhizome of Leymus chinensis,Elytrigia smithui cv. osana? Elytrigia smithii cv. arton?is longer, Leymus racemosus and Elytrigia intermedia is shorter. There are more protoxylem bundles of root and vascular bundles of stem and leaf in Leymus racemosus,Elytrigia intermedia than the other 4 kinds of forages. The 2-4 layer cortex cell near the endodermis range in the radiation ray. Exept Leymus chinensis ,the other 5 kinds of forages ,during the PMC,in the metaphase I, anaphase I, Elytrigia smithii cv. arton?and Elytrigia smithui cv. 揜osana?produce Chromosome bridge, the cytokinesis is of successive type, the tetrad is of isolatteral type.