【摘要】 为胶东玉米高产栽培的播期控制提供技术支撑,在大田条件下研究了播期对不同玉米品种生育期、抗逆性及产量的影响。试验采用裂区设计,调查了玉米的全生育期天数、倒伏率、产量、粗缩病发病情况等产量相关指标。结果表明,播种越晚,生育期越短,产量也越低。6月1日、6月10日播种的玉米粗缩病最重。在本试验条件下,从播期和品种本身特性等多方面比较,春播玉米品种以5月1日至6月1日播种产量最高。更多还原

【Abstract】 In order to offer a technological support for the control of sowing date and variety selection of high yield maize in eastern Shandong,different sowing-dates were tested in concomitant with their effects on the growth periods,stress resistance and yield were studied under field conditions.The experiments were using split plot design,the days of the full growth period,the rates of lodging,yield,dwarf disease of maize.The results showed that the later the sowing is,the shorter the growth periods is,the lower the yield is.The rough dwarf disease of maize is occurred seriously in June 1and June 10.Under this experiment condition,the optimum yield is sowed from May 1 to June 1 in spring maize.更多还原