Plant material

Tuber fresh wt, mg

Length/width ratio of the tuber

Plants with tubers, % of total number

Content of starch, mg/g dry wt

Wild type

35.1 ± 3.0

1.20 ± 0.20

65.5 ± 7.1

510.5 ± 25.65

rolB

44.5 ± 2.4

1.09 ± 0.05

86.2 ± 4.8

481.5 ± 15.04

rolC

67.2 ± 5.4

2.71 ± 0.31

47.0 ± 4.2

437.8 ± 14.84