The correlation between Pn and yield was very significant (r= 0.5024 , 0.5359 , 0.6758) at booting, heading to flowering and later filling stage.4.
其中孕穗期、抽穗开花期和灌浆末期的Pn变化与产量的相关性达极显著水平,其相关系数分别为0.5024、0.5359和0.6758。
参考来源 - 不同品种啤酒大麦叶片光合特性与产量和品质关系的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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。
The effect on the rice growth in heading and flowering period by SO2 emitted from natural gas purification plant and fell to the ground has been tested through fumigation experiment.
通过对处于抽穗扬花期的水稻进行人工熏气试验，考察天然气净化厂事故徘放时外排的二氧化硫落地后对水稻生长的影响。
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