Study On Forage Germplasm Resources Of Xilinguole Grassland

Forage germplasm resources of xilinguole grassland are abundance. Known forage plants, There are 800 species ,5 subspecies ,72 varieties and 4 foms.,Which excellent forages have 106 species,good forages have 206 species,fair forages have 297 species,low forages have 203 species and poor forages have 57 species. Poisonous plants have 17 species. Harmful plants have 10 species. Wild species of world cultivated forages distribution to 23 species in xilinguole grassland. There are Agropyron. cristatum (L.) Gaertn., A. mongolicum Keng, A. desertorum (Fisch.) Schult., A. sibiricum (Willd.) Beauv., Bromus inermis Leyss., Elymus dahuricus Turcz., E. sibiricus L.,E. nutans Griseb., Echinochloa crusgalli (L.) Beauv., Poa pratensis L., Roegneria ciliaris (Trin.) Nevski, Hordeum brevisubulatwn (Trin.) Link, Phalaris arundinacea L.,Leymus chinensis (Trin.) Tzvel., Alopecurus arundinaceus Schreb.,Caragana microphylla Lam., Lespedeza bicolor Turcz.,Melilotus albus Desr.,Trifolium lupinaster L.,Melilotoides ruthenica (L.) Sojak,Kochia prostrata (L.) Schrad., Ceratoides arborescens (Losinsk.) Tsien et C. G. Ma and Calligonum mongolicum Turcz . Kindred wild species of Bromus inermis Leyss.have 2 species .They are Bromus ircutensis Kom.and B. ciliatus L. . Kindred wild species of Medicago sativa L. have 2 species and 1 variety. They are M. falcata L., Melilotoides ruthenica (L.) Sojak and M. ruthenica (L.) Sojak var. oblongifolia (Freyn ex Vass.) Yakovl. . Kindred wild species of Trifolium pratense L. have 1 species and 1 form. . They are T. lupinaster L .and T. lupinaster L. f. albiflorum (Ser.) P.Y. Fu etY.A. Chen. Kindred wild species of Onobrychis viciifolia Scop.have 1 species. It is Hedyzarum gmelinii Ledeb. . Rare species have 3 species, 4 varieties and 1 form. These species are: Roegneria intramongolica Sh. Chen et Gaowua, Agropyron cristatum (L.) Gaertn. vat; pluriflorum H.L.Yang, A. mongolicum Keng var. villosum H. L. Yang, A. sibiricum (Willd.)Beauv. f. pubiflorum Roshev., Hordeum innermongolicum Kou et L. B. Cat, Melilotoides ruthenica (L.) Sojak var. oblongifolia (Freyn ex Vass.) Yakovl, Artemisia intramongolica H. C. Fu and Corispermum chinganicum Iljin var. microcarpum Iljin.. They are precious germplasm resources of forage breeding.