Germination time Abbreviation Planting date Sampling time Growth period (d)
Spring GT1 Jun. 7 EX 30
I 50
II 80
III 110
Late spring GT2 Jun. 27 I 50
II 70
III 90
Summer GT3 Jul. 17 I 30
II 50
III 80
Late summer GT4 Aug. 7 I 30
II 40
III 50