Table 2.
First germination count (FGC), germination test (G), and germination speed index (GSI) of rice seeds, cv. BRS Querência and cv. Brilhante in response to conditioning on carrot extract and low temperature.
Cultivars | 25 °C | 25 °C | ||||
---|---|---|---|---|---|---|
Control | Carrot extract (%) | |||||
0 | 25 | 50 | 100 | |||
FGC (%) | BRS Querência | 80 ± 1.4 Ba | 17 ± 2.8 Bd | 31 ± 6.0 Bbc | 24 ± 2.0 Bcd | 34 ± 4.1 Bb |
Brilhante | 89 ± 3.4 Aa | 23 ± 3.0 Ac | 72 ± 6.6 Ab | 75 ± 3.0 Ab | 77 ± 1.4 Ab | |
CV (%) | 7.8 | |||||
G (%) | BRS Querência | 90 ± 6.3 Aa | 37 ± 8.0 Bc | 67 ± 6.4 Bb | 72 ± 4.6 Bb | 69 ± 3.8 Bb |
Brilhante | 92 ± 3.0 Aa | 64 ± 4.7 Ab | 88 ± 4.3 Aa | 89 ± 3.0 Aa | 91 ± 4.8 Aa | |
CV (%) | 6.1 | |||||
GSI | BRS Querência | 34 ± 0.7 Ba | 3.3 ± 0.17 Bc | 6.1 ± 0.2 Bb | 6.2 ± 0.4 Bb | 6.3 ± 0.6 Bb |
Brilhante | 54 ± 1.9 Aa | 5.4 ± 0.45 Ac | 10.1 ± 0.6 Ab | 10.0 ± 0.4 Ab | 11 ± 0.6 Ab | |
CV (%) | 6.0 |
Means followed by the same letter, upper case in the column and lower case in the row, do not differ by Tukey's test (P ≤ 0.05).
CV coefficient of variation, ± SD standard deviation.