Treatment

Experiment

Number of bombardments

Number of transgenic plants

Number of transgenic plants/bombardment^*

Spermidine

I

8

13

1.63

II

8

15

1.88

III

14

25

1.79

Spermidine total

30

53

1.76 ± 0.07

Protamine

I

8

23

2.88

II

8

9

1.13

III

14

16

1.14

Protamine total

30

45

1.71 ± 0.58

Seashell DNA del TM

I

8

7

0.88

II

8

9

1.13

III

14

25

1.79

Seashell DNA del TM

30

41

1.26 ± 0.27