论文部分内容阅读
众所周知,使用优良玉米品种(或组合)是提高玉米单产最经济有效的途径。随着玉米杂交种使用面积的不断扩大,种子本身的质量显得越来越重要。对此,现就如何提高杂交玉米种子纯度提几点建议。从玉米杂交种生产的主要环节分析,造成杂交种子纯度下降的主要原因有:
It is well-known that the use of good maize varieties (or combinations) is the most cost-effective way to increase yields of maize. With the increasing use of corn hybrids, the quality of the seeds themselves is becoming more and more important. In this regard, now on how to improve the purity of hybrid corn seed to make a few suggestions. From the main aspects of corn hybrid production analysis, resulting in decreased purity of hybrid seeds are the main reasons: