山东农业科学Issue(8)：39-41,45,4.DOI:10.14083/j.issn.1001-4942.2015.08.010
播期对夏玉米生长发育和产量形成的影响
Effect of Sowing Date on Growth and Yield of Summer Maize
摘要
Abstract
Three sowing dates (June 4,12 and 20)were designed to study their effects on growth and yield of summer maize with Zhengdan 958 and Denghai 605 as materials.The results showed that the growth period,stem diameter,ear length and kernels per ear of the two varieties deceased with the postponing of so-wing dat,while the plant height,ear height and bald length increased.The dry weight per plant,ear diameter and kernels per row obtained the highest values on the middle sowing date.The row number per ear and effec-tive ear number had no significant differences between different treatments,and the 1 000 -kernel weight and yield were different between different varieties.In the southwest area of Shandong Province with Jining City as representative,the optimum sowing date for Zhengdan 958 was June 12,and the suitable sowing period for Denghai 605 was from June 12 to 20;the suitable harvest time for the two varieties was during the end of Sep-tember and the beginning of October.关键词
夏玉米/播期/产量Key words
Summer maize/Sowing date/Yield分类
农业科技引用本文复制引用
董秀春,李鹏,徐燕..播期对夏玉米生长发育和产量形成的影响[J].山东农业科学,2015,(8):39-41,45,4.基金项目
山东省农业重大应用技术创新课题 （）
