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1·The growth process of the seed of Agropyron desertorum cv.

对诺丹冰草种子发育过程的切片进行观察和研究。

2·The type of polyploid in Agropyron was not strictly autoploid.

冰草属的多倍体并非严格的同源多倍体。

3·There are 23 species of wild ancestor of Gramineae cultivated forage in Inner Mongolia. They are: Agropyron cristatum (L. ) Gaertn.

禾本科栽培牧草在内蒙古分布的野生祖型有23种之多。

4·This paper is a experimental summation on the cross breeding between Triticum aestivum and Agropyron elongatum in the past twenty years.

本文是普通小麦与长穗偃麦草杂交育种二十年的经验总结。

5·The azotobacteria in the rhizosphere of Leymus chinensis and Agropyron mongolica were separateda, nd their activities were measured by the methods of dilution-plate method and etylene reduction assay.

利用平板划线法和乙炔还原法对羊草和冰草根际固氮菌进行分离和固氮活性的测定。