Table 3. Production of pollen by nine maize cultivars in the glasshouse. Pollen batch 1 and 2 were obtained from plants grown consecutively in the same glasshouse.

Pollen batch and cultivar	Days to anthesis	Number of plants producing pollen	Pollen per plant [mg]
Batch 1 (sown on 15 February 2012)
DKC5143Bt (Bt)	61	7 of 10	0.93
DKC5143	62	6 of 10	1.25
DKC3421YG (Bt)	57	7 of 9	1.21
DKC3420	57	8 of 10	1.31
Compa CB (Bt)	72	7 of 11	0.29
Dracma	75	7 of 11	0.36
Radiance	55	3 of 10	0.83
Rheintaler	61	8 of 9	1.13
Gavott	56	4 of 10	0.81
Batch 2 (sown on 8 May 2012)
DKC5143Bt (Bt)	60	5 of 5	0.66
DKC5143	60	5 of 5	0.60
Compa CB (Bt)	73	7 of 8	0.33
Dracma	73	7 of 8	0.33
Radiance	56	10 of 11	0.80
Gavott	56	4 of 4	0.88