opening time
5.The JAs content in stamens,lodicules and lemmas increased continuously with the time approaching anthesis,peaked at the time of floret opening,and decreased 2 h after floret opening,on the contrary,JAs level in pistils was 36.58% lower at the time of floret opening than that one day before,but increased dramatically to 2.63 times higher 2 h after floret opening than that at the time of floret opening.


