论文部分内容阅读
本文根据河西地区玉米杂交种发展现状及趋势,对玉米杂交种质量要求进行了认真分析和思考,提出了对河西地区玉米制种的质量控制的具体措施。1 现状河西地区是传统的农业区,全国知名的商品粮基地,包括酒泉、张掖2个地区,武威、嘉峪关、金昌3个地级市,共20个县市。区内地势平坦,光照资源充足,无霜期长,降水量少,气候干燥,加之绿洲与戈壁相间的良好天然隔离,以及较大的昼夜温差和极小的花期降雨,井河互补灌溉方式,非常有利于玉米制种达到高产优质。多年来,尤其是近2a每年制种面积
According to the development status and trend of maize hybrids in Hexi Region, this paper made a careful analysis and reflection on the quality requirements of maize hybrids, and put forward the concrete measures for quality control of maize hybrids in Hexi Region. 1 Status Hexi area is a traditional agricultural area, the country’s well-known commodity grain base, including Jiuquan, Zhangye two regions, Wuwei, Jiayuguan, Jinchang three prefecture-level cities, a total of 20 counties. The flat terrain, adequate lighting resources, long frost-free period, less precipitation, dry climate, combined with good natural isolation between oasis and Gobi, as well as large temperature difference between day and night and minimal flowering, well-complementary irrigation methods, very Conducive to the production of high-quality corn seed. Over the years, especially in the past 2a annual seed production area