The effect of root zone immersion in deionized water (Dw) and seawater (Sw) on plant reproductive potential (crop yield) of four oilseed rape (Brassica napus) cultivars (‘Cracker’, ‘Cubic’, ‘Agatha’ and ‘Astrid’) 7 months after plants (growth stage 1.3–1.6) were subject to transient immersion (24 or 96 h with a zero hour control)
Treatment . | . | Number of siliqua per plant . | . | . | . | Seeds per siliqua . | . | . | . | Seed mass (mg) . | . | . | . |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
. | . | ‘Cracker’ . | ‘Cubic’ . | ‘Astrid’ . | ‘Agatha’ . | ‘Cracker’ . | ‘Cubic’ . | ‘Astrid’ . | ‘Agatha’ . | ‘Cracker’ . | ‘Cubic’ . | ‘Astrid’ . | ‘Agatha’ . |
Control | Mean | 35.5 | 29.8 | 22.0 | 35.8 | 13.2 | 22.4 | 22.3 | 20.3 | 0.04 | 0.08 | 0.07 | 0.06 |
s.e. | 8.6 | 2.8 | 2.4 | 4.8 | 2.7 | 1.2 | 1.0 | 1.2 | 0.009 | 0.009 | 0.004 | 0.005 | |
24 h Dw | Mean | 30.3 | 18.3 | 22.8 | 21.7 | 16.5 | 21.6 | 22.5 | 17.7 | 0.04 | 0.06 | 0.07 | 0.04 |
s.e. | 3.4 | 2.7 | 6.2 | 3.3 | 0.6 | 1.0 | 2.0 | 1.0 | 0.005 | 0.003 | 0.01 | 0.004 | |
96 h Dw | Mean | 40.7 | 28.0 | 28.8 | 27.5 | 11.4 | 25.0 | 20.9 | 19.9 | 0.03 | 0.07 | 0.06 | 0.05 |
s.e. | 13.2 | 3.6 | 2.7 | 5.0 | 4.9 | 0.5 | 1.1 | 1.4 | 0.02 | 0.004 | 0.005 | 0.004 | |
24 h Sw | Mean | 25.8 | 38.5 | 25.5 | 43.8 | 13.8 | 22.8 | 23.0 | 20.2 | 0.04 | 0.08 | 0.07 | 0.07 |
s.e. | 6.0 | 11.1 | 0.9 | 5.9 | 1.6 | 0.8 | 0.7 | 1.5 | 0.004 | 0.006 | 0.008 | 0.006 | |
96 h Sw | Mean | 24.3 | 11.5 | 17.5 | 14.0 | 13.6 | 19.4 | 22.5 | 9.2 | 0.03 | 0.04 | 0.07 | 0.02 |
s.e. | 6.2 | 3.2 | 3.0 | 5.1 | 3.2 | 2.0 | 1.2 | 4.7 | 0.01 | 0.006 | 0.006 | 0.01 |
Treatment . | . | Number of siliqua per plant . | . | . | . | Seeds per siliqua . | . | . | . | Seed mass (mg) . | . | . | . |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
. | . | ‘Cracker’ . | ‘Cubic’ . | ‘Astrid’ . | ‘Agatha’ . | ‘Cracker’ . | ‘Cubic’ . | ‘Astrid’ . | ‘Agatha’ . | ‘Cracker’ . | ‘Cubic’ . | ‘Astrid’ . | ‘Agatha’ . |
Control | Mean | 35.5 | 29.8 | 22.0 | 35.8 | 13.2 | 22.4 | 22.3 | 20.3 | 0.04 | 0.08 | 0.07 | 0.06 |
s.e. | 8.6 | 2.8 | 2.4 | 4.8 | 2.7 | 1.2 | 1.0 | 1.2 | 0.009 | 0.009 | 0.004 | 0.005 | |
24 h Dw | Mean | 30.3 | 18.3 | 22.8 | 21.7 | 16.5 | 21.6 | 22.5 | 17.7 | 0.04 | 0.06 | 0.07 | 0.04 |
s.e. | 3.4 | 2.7 | 6.2 | 3.3 | 0.6 | 1.0 | 2.0 | 1.0 | 0.005 | 0.003 | 0.01 | 0.004 | |
96 h Dw | Mean | 40.7 | 28.0 | 28.8 | 27.5 | 11.4 | 25.0 | 20.9 | 19.9 | 0.03 | 0.07 | 0.06 | 0.05 |
s.e. | 13.2 | 3.6 | 2.7 | 5.0 | 4.9 | 0.5 | 1.1 | 1.4 | 0.02 | 0.004 | 0.005 | 0.004 | |
24 h Sw | Mean | 25.8 | 38.5 | 25.5 | 43.8 | 13.8 | 22.8 | 23.0 | 20.2 | 0.04 | 0.08 | 0.07 | 0.07 |
s.e. | 6.0 | 11.1 | 0.9 | 5.9 | 1.6 | 0.8 | 0.7 | 1.5 | 0.004 | 0.006 | 0.008 | 0.006 | |
96 h Sw | Mean | 24.3 | 11.5 | 17.5 | 14.0 | 13.6 | 19.4 | 22.5 | 9.2 | 0.03 | 0.04 | 0.07 | 0.02 |
s.e. | 6.2 | 3.2 | 3.0 | 5.1 | 3.2 | 2.0 | 1.2 | 4.7 | 0.01 | 0.006 | 0.006 | 0.01 |
n = 4 for all treatment/cultivar combinations except ‘Cracker’ 96 h Dw, and ‘Agatha’ 24 h Dw and 96 h Sw where n = 3.
The effect of root zone immersion in deionized water (Dw) and seawater (Sw) on plant reproductive potential (crop yield) of four oilseed rape (Brassica napus) cultivars (‘Cracker’, ‘Cubic’, ‘Agatha’ and ‘Astrid’) 7 months after plants (growth stage 1.3–1.6) were subject to transient immersion (24 or 96 h with a zero hour control)
Treatment . | . | Number of siliqua per plant . | . | . | . | Seeds per siliqua . | . | . | . | Seed mass (mg) . | . | . | . |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
. | . | ‘Cracker’ . | ‘Cubic’ . | ‘Astrid’ . | ‘Agatha’ . | ‘Cracker’ . | ‘Cubic’ . | ‘Astrid’ . | ‘Agatha’ . | ‘Cracker’ . | ‘Cubic’ . | ‘Astrid’ . | ‘Agatha’ . |
Control | Mean | 35.5 | 29.8 | 22.0 | 35.8 | 13.2 | 22.4 | 22.3 | 20.3 | 0.04 | 0.08 | 0.07 | 0.06 |
s.e. | 8.6 | 2.8 | 2.4 | 4.8 | 2.7 | 1.2 | 1.0 | 1.2 | 0.009 | 0.009 | 0.004 | 0.005 | |
24 h Dw | Mean | 30.3 | 18.3 | 22.8 | 21.7 | 16.5 | 21.6 | 22.5 | 17.7 | 0.04 | 0.06 | 0.07 | 0.04 |
s.e. | 3.4 | 2.7 | 6.2 | 3.3 | 0.6 | 1.0 | 2.0 | 1.0 | 0.005 | 0.003 | 0.01 | 0.004 | |
96 h Dw | Mean | 40.7 | 28.0 | 28.8 | 27.5 | 11.4 | 25.0 | 20.9 | 19.9 | 0.03 | 0.07 | 0.06 | 0.05 |
s.e. | 13.2 | 3.6 | 2.7 | 5.0 | 4.9 | 0.5 | 1.1 | 1.4 | 0.02 | 0.004 | 0.005 | 0.004 | |
24 h Sw | Mean | 25.8 | 38.5 | 25.5 | 43.8 | 13.8 | 22.8 | 23.0 | 20.2 | 0.04 | 0.08 | 0.07 | 0.07 |
s.e. | 6.0 | 11.1 | 0.9 | 5.9 | 1.6 | 0.8 | 0.7 | 1.5 | 0.004 | 0.006 | 0.008 | 0.006 | |
96 h Sw | Mean | 24.3 | 11.5 | 17.5 | 14.0 | 13.6 | 19.4 | 22.5 | 9.2 | 0.03 | 0.04 | 0.07 | 0.02 |
s.e. | 6.2 | 3.2 | 3.0 | 5.1 | 3.2 | 2.0 | 1.2 | 4.7 | 0.01 | 0.006 | 0.006 | 0.01 |
Treatment . | . | Number of siliqua per plant . | . | . | . | Seeds per siliqua . | . | . | . | Seed mass (mg) . | . | . | . |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
. | . | ‘Cracker’ . | ‘Cubic’ . | ‘Astrid’ . | ‘Agatha’ . | ‘Cracker’ . | ‘Cubic’ . | ‘Astrid’ . | ‘Agatha’ . | ‘Cracker’ . | ‘Cubic’ . | ‘Astrid’ . | ‘Agatha’ . |
Control | Mean | 35.5 | 29.8 | 22.0 | 35.8 | 13.2 | 22.4 | 22.3 | 20.3 | 0.04 | 0.08 | 0.07 | 0.06 |
s.e. | 8.6 | 2.8 | 2.4 | 4.8 | 2.7 | 1.2 | 1.0 | 1.2 | 0.009 | 0.009 | 0.004 | 0.005 | |
24 h Dw | Mean | 30.3 | 18.3 | 22.8 | 21.7 | 16.5 | 21.6 | 22.5 | 17.7 | 0.04 | 0.06 | 0.07 | 0.04 |
s.e. | 3.4 | 2.7 | 6.2 | 3.3 | 0.6 | 1.0 | 2.0 | 1.0 | 0.005 | 0.003 | 0.01 | 0.004 | |
96 h Dw | Mean | 40.7 | 28.0 | 28.8 | 27.5 | 11.4 | 25.0 | 20.9 | 19.9 | 0.03 | 0.07 | 0.06 | 0.05 |
s.e. | 13.2 | 3.6 | 2.7 | 5.0 | 4.9 | 0.5 | 1.1 | 1.4 | 0.02 | 0.004 | 0.005 | 0.004 | |
24 h Sw | Mean | 25.8 | 38.5 | 25.5 | 43.8 | 13.8 | 22.8 | 23.0 | 20.2 | 0.04 | 0.08 | 0.07 | 0.07 |
s.e. | 6.0 | 11.1 | 0.9 | 5.9 | 1.6 | 0.8 | 0.7 | 1.5 | 0.004 | 0.006 | 0.008 | 0.006 | |
96 h Sw | Mean | 24.3 | 11.5 | 17.5 | 14.0 | 13.6 | 19.4 | 22.5 | 9.2 | 0.03 | 0.04 | 0.07 | 0.02 |
s.e. | 6.2 | 3.2 | 3.0 | 5.1 | 3.2 | 2.0 | 1.2 | 4.7 | 0.01 | 0.006 | 0.006 | 0.01 |
n = 4 for all treatment/cultivar combinations except ‘Cracker’ 96 h Dw, and ‘Agatha’ 24 h Dw and 96 h Sw where n = 3.
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