辽河流域玉米籽粒脱水特点及适宜收获期分析

黄兆福,明博,王克如,谢瑞芝,杨飞,王志刚,肖春华,李少昆

Characteristics of maize grain dehydration and prediction of suitable harvest period in Liao River Basin

Zhao-Fu HUANG,Bo MING,Ke-Ru WANG,Rui-Zhi XIE,Fei YANG,Zhi-Gang WANG,Chun-Hua XIAO,Shao-Kun LI

表4 不同玉米品种在不同阶段对活动积温的需求

Table 4 Demands for actively accumulated temperature at different stages of different maize cultivars (°C d)

品种 Hybrid 播种-出苗 Sowing-Emergence 出苗-吐丝 Emergence-Silking 吐丝-生理成熟 Silking-Physiological maturity 吐丝-含水率25% Silking-25% MC 播种-含水率25%* Sowing-25% MC* 德育919 Deyu 919 237 1366 1351 1519 3122 京科728 Jingke 728 470 1126 1497 1582 3178 泽玉8911 Zeyu 8911 265 1411 1578 1655 3331 吉单66 Jidan 66 310 1395 1662 1651 3356 辽单575 Liaodan 575 379 1419 1655 1760 3558 京科968 Jingke 968 379 1529 1622 1789 3697