抽穗期
Days to heading
rice heading stage
heading stage
Heading time
Digestibility stage
tassel period
Heading period
heading
Flowering time heading date
heading date
auxiliary control lever
date of heading
Rice flowering
Earing stage
earing time
heading date HD
茎蘖等穗期
date of spikes tillers equal
齐穗期
Full heading stage
full heading time
panicle integrated period
穗期病害
diseases at heading stage
穗期高温
high air temperature during heading stage