长根茎蓝粒玉米种质利用初报

选育在超深播种条件下能够正常出苗的玉米杂交种，对于干旱半干旱地区春播玉米生产有十分重要的现实意义。利用具有长根茎特性的印地安蓝粒玉米种质，已育成ＳＮ系列自交系和相应的杂交种，播深２０ｃｍ能够正常出苗，在春旱严重的情况下，可以适期播种，利用较深层土壤水分保证苗全苗壮。

The First Report about the Application of Long Rhizome Germplasm of Blue Maize

Drought is major limiting factor in the production of maize. Spring drought more occured in shanxi province is unconquerable reality for maize to obtain full stand. On the basis of long rhizome characteristic of blue maize, by deep seeding and the means of genetic introduction,the hybrid varieties with commercial value have been bred out. The hybrid varieties can sow in good time and get full stand by deep seeding. It has practical and lasting significance for drought and semi-drought areas in development of maize production. The result of this study proved that selfcrossing strains and hybrid vavieties with deep seeding tolerance hade a high value of application in production.