玉米是我市主要的粮食作物之一,近年来种植面积逐年增长。如何生产优质的玉米杂交种,我们是从以下几个方面着手: 一、抓好原种生产是提高玉米杂交种质量的基础。原种一是要来自国家指定的专门生产繁殖单位。由专门生产繁殖单位提供,可保证原有品种的典型性,减少从选择到用于生产之间经过的世代数,避免在选择中走样,可较好地保持品种的种性,得到纯度较高的生产用 Corn is one of the main food crops in our city, and the acreage has been increasing year by year in recent years. How to produce high-quality corn hybrids, we are from the following aspects: First, do a good job of the original production is to improve the quality of corn hybrids. The original one is from the country designated specifically for the production of breeding units. Provided by specialized production and breeding units, can guarantee the typicality of the original varieties, reduce the number of generations passed from selection to production, avoid aliasing in selection, better maintain varieties’ varieties, and obtain higher purity Production use