花期高温干旱对玉米雄穗发育、生理特性和产量影响

闫振华,刘东尧,贾绪存,杨琴,陈艺博,董朋飞,王群

Maize Tassel Development, Physiological Traits and Yield Under Heat and Drought Stress During Flowering Stage

YAN ZhenHua,LIU DongYao,JIA XuCun,YANG Qin,CHEN YiBo,DONG PengFei,WANG Qun

表1 不同胁迫处理对玉米雄穗农艺性状的影响

Table 1 Effects of different stress treatments on tassel-related traits of maize

年份 Year 品种 Cultivar 处理 Treatment 主轴长 Tassel central branch length (cm) 主轴小花数 Tassel central branch spikelet number 分枝数 Tassel branch number 分枝小花密度 Tassel branch spikelet density (count/cm) 2018 ZD958 CK 38.40±1.06a 268.44±21.46a 14.84±2.04a 3.14±0.59a T 38.38±2.70a 256.42±20.07ab 12.21±1.60b 3.02±0.45b D 30.52±1.81b 227.24±12.65bc 10.2±1.60bc 2.73±0.38c TD 28.78±2.75b 197.47±25.55c 9.43±1.62c 2.62±0.23c HN138 CK 42.78±3.15a 193.69±10.09a 4.00±1.26a 2.44±0.17a T 33.92±2.07b 153.88±12.46ab 3.44±0.80ab 2.29±0.32b D 31.84±1.79c 138.15±9.23bc 2.63±0.80ab 1.77±0.28c TD 29.82±1.60c 130.45±17.58c 2.00±0.89b 2.26±0.31b 2019 ZD958 CK 38.25±4.64a 309.60±14.89a 17.80±1.33a 4.02±0.14a T 36.51±2.27a 268.40±10.03b 14.80±1.47b 3.04±0.22b D 30.35±2.26b 245.60±35.67b 12.00±1.10c 2.45±0.15c TD 29.79±1.32b 198.80±9.66c 9.60±1.36d 2.35±0.28c HN138 CK 45.96±1.28a 220.40±8.59a 4.80±1.72a 3.27±0.48a T 35.79±0.57b 166.60±3.44b 3.80±0.98a 2.62±0.18a D 33.18±0.39b 143.80±4.35c 3.00±1.10b 2.33±0.15ab TD 30.99±1.25c 147.20±9.27d 2.40±1.02b 2.01±0.15b 变异来源 Source of variation 年份 Year NS NS NS NS 品种 Cultivar ** ** ** ** 处理 treatment ** ** ** ** 年份×品种 Year×Cultivars NS NS NS NS 年份×处理 Year×Treatment NS NS NS NS 品种×处理 Cultivars×Treatment ** ** * NS 年份×品种×处理 Year×Cultivars×Treatment NS NS NS NS