吐丝前高温胁迫对不同耐热型夏玉米产量及穗发育特征的影响
高英波,张慧,单晶,薛艳芳,钱欣,代红翠,刘开昌,李宗新

Effects of Pre-Silking High Temperature Stress on Yield and Ear Development Characteristics of Different Heat-Resistant Summer Maize Cultivars
GAO YingBo,ZHANG Hui,SHAN Jing,XUE YanFang,QIAN Xin,DAI HongCui,LIU KaiChang,LI ZongXin
表1 吐丝前高温胁迫对夏玉米产量、产量构成及穗部性状的影响
Table 1 Effects of pre-silking high temperature stress on grain yield, yield components and ear characters of summer maize
品种
Variety
处理
Treatment
籽粒产量
Grain yield
(g/plant)
千粒重
1000-kernel weight (g)
穗粒数
Grains per ear
穗长
Ear length
(cm)
秃顶长
Barren tip length
(cm)
穗行数
Rows of ear
行粒数
Grains per row
LC808 35/25℃ 80.53a 245.18a 319.33a 16.00a 1.83b 13.33a 24.00a
40/30℃ 47.61b 202.34b 224.00b 13.50b 3.07a 12.00a 18.67b
ZD958 35/25℃ 71.72a 231.21a 297.33a 14.00a 1.00b 14.67a 20.33a
40/30℃ 39.46b 175.62b 214.67b 10.37b 1.93a 14.00a 15.33b
品种 Variety (V) ** ** ns *** ** ** ***
高温High temperature (T) *** *** *** *** ** ns ***
品种×高温V×T ns ns ns ns ns ns ns