Fig. 2.

Bud dissection of rapid-cycling Brassica rapa. a Intact inflorescence of RcBC 1-33, the standard line of RCBr, prior to dissection. b Floral buds from one inflorescence placed in order of occurrence on the stem. Scale bars 5 mm. c, d and e, Dissection of indicated floral buds from B showing: ① and ②, sealed carpels, diameters of buds were around 2 mm. ③, unsealed carpel (white arrow), the diameter of bud was less than 1 mm