采用裂区设计，以先玉335、大丰26、潞玉13为主处理，在4月26日、5月3日、5月10日3个不同播期下，研究了品种与播期对玉米丝黑穗病及青枯病发病的影响。结果表明，先玉335、大丰26在播期为5月3日及5月10日时，丝黑穗病、青枯病的发病率较低或无发病症状；潞玉13在播期为5月10日丝黑穗病、青枯病发病率相对较低。

Using split-plot design， the rate of bacterial wilt and head smu among Xianyu 335、 Luyu1 3 and Dafeng 26 in different sowing time which are April 26th， May 3rd and May 10th were Compared . The results showed that the variance of Xianyu 335 which sowed in May 3rd had the most lowest head smut incidence rate， and Luyu 13 and Dafeng 26 which sowed in May 10th had taken the second place； all the varieties sowed in May 10th had the lowest bacterial wilt affection rate .

S513；S435

山西省长治市星火计划项目“早熟高产优质玉米种质材料创新与新品种选育”(20123014)部分内容