heading stage [农学] 抽穗期 ; 出穗期
elongation-heading stage 拔节抽穗期
at heading stage 在抽穗期
safe heading stage 安全抽穗期
safety heading stage 安全抽穗期
There was maximum reduction on K uptake at the heading stage for two varieties.
两个品种K吸收影响最大的是抽穗期。
参考来源 - 褐飞虱侵害对水稻根系营养物质吸收和叶片水势的影响·2,447,543篇论文数据，部分数据来源于NoteExpress
The amount and the intensity of water consumption were mostly in the stage between from sowing to emergence and from booting to heading.
不同水分处理下旱稻在不同生育阶段的耗水量和耗水强度大部分都集中在播种至出苗和孕穗至抽穗阶段。
Hay quality is best from heading to flowering and from flowering to milk stage.
干草品质以抽穗至开花和开花至灌浆期为最好。
Higher GA3 content in single ridge stage might delay heading date, but higher IAA content in floret differentiation stage might shorten heading date.
单棱期较高水平的GA 3具有延长抽穗期的作用，而小花分化期较高水平的IAA含量则具有缩短抽穗期的作用。
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