河北省玉米杂交种发展战略的探讨

本文通过对河北省玉米杂交种发展历史的回顾与现状分析,预测了未来生产对玉米杂交种的要求,并试拟了河北省玉米杂交种的发展战略,即要以种质资源的征集,改良和利用为基础,以大幅度地提高单产为前提,实现局部高产与大面积均衡增产的结合,高产与稳产、高产与优质的结合,高产与低成本高纯度的结合和品种配套与合理布局的结合。

DISCUSSION ON STRATEGY OF DEVELOPING CORN HYBRID STRAINS IN HEBEI PROVINCE

The developing couse of hybrid maize and present situation of corn production in Hebei province was discussed.Also,strategies on develop- ing corn hybrid strains in future in that province were made,i.e.deve- loping corn hybrid strains should be based on colection,improvement,utiliza- tion of germplasm resource,and the prerequisite of it must be highly in- creasing yield per mu.It should be achieved to combine high yield in parts of an area with high yield in all parts of the areas;to combine high and stable yield with superior quality,low cost price and high seed purity.More attention must be paid to a combination of forming a Comp- leteset and reaching reasonable patterns of strains7