NO₂ (ppb)

Inflorescence

(cm) ± SD

Pollen/Inflorescence

(mg) ± SD

Seeds/plant

(mg) ± SD

Weight of 50 grains (mg) ± SD

1^st 40

23.73 ± 1.12

79 ± 6

1329 ± 85

229 ± 18

1^st 80

25.18 ± 1.57

132 ± 11

905 ± 69

199 ± 10

p-value

0.327

1.8 × 10E⁻⁵*

2.3 × 10E⁻³*

1.9 × 10E⁻³*

2^nd 0

24.48 ± 1.35

85 ± 8

1637 ± 77

237 ± 16

2^nd 80

24.61 ± 1.77

159 ± 12

1024 ± 53

209 ± 9

p-value

0.568

2.7 × 10E⁻⁵*

3.5 × 10E⁻³*

2.9 × 10E⁻³*