Yield variables

Seeds of vitroplants

Seed tubers

Fisher test

F

P

Mean number of tubers per plant

1.31 ± 00^a

1.22 ± 00^a

3.49

0.110

Total mass of tubers per plant (kg)

1.88 ± 1.05^a

0.88 ± 0.33^b

15.56

<0.01

Mean mass of a tuber (kg)

1.42 ± 0.46^a

0.75 ± 0.27^b

12.66

<0.01

Yield per hectare (tone)

14.71 ± 3.79^a

7.06 ± 4.13^b

15.56

<0.01