The results showed that there were two peaks in changes carve of leaf stomatal conductance, and one peak in the changes curve of LAI, leaf fresh and dry biomass in the whole growth period.

• 结果表明，在整个生育期油菜叶片气孔导度呈“双峰”变化, LAI和叶片鲜、干生物量均呈单峰曲线变化；