The preliminary report of seed polymorphism in Salsola L.in Xinjiang

Xinjiang is rich in xerophyte and halophyte resources,many of which have seed polymorphism phenomenon,and Salsola L.is one of them.There are 37 species and one variety of Salsola L.in China,mainly distributed in Xingjiang(33species).Investigations on the seeds of the following species of S.subcrassa M.Pop.,S.orientalis S.G.Gmel.,S.lanata Pall.,S.heptapotamicalljin,S.korshinskyi Drob.,S.arbuscula Pall.,S.foliosa(L.)Schrad.,S.arbuscula Pall.,S.nitraria Pall.,S.junatovii Botsch.and S.micranthera Botsch.in Xinjiang showed that seed polymorphism phenomenon was observed in all this 10 species of Salsola L.,and each had two different types of seeds and showed different in color,shape,diameter,quality and so on.The S.collina Pall.species having seed polymerphism phenomenon studied in this paper occupy about 30% of all the species of Salsola L.in Xinjiang and about 26% of all the species of Salsola L.in China.