Effects of Planting Date, Cultivar and Vernalization Using Gibberellic Acid on the Severity of Root-Knot Nematode Damage to Globe Artichoke in Subtropical Sandy Soil
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Effects of artichoke cultivars and vernalization by gibberellic acid (GA3) on root gall index and number of root-knot nematode (RKN, Meloidogyne javanica) juveniles (J2s) in subtropical sandy soil.
Cultivar
GA3 (g/ha)
Root gall index
RKN juvenile number (J2s/200 cm3 soil)
2021
2022
2021
2022
Green Globe Improved
1.34 ± 0.39
8.38 ± 0.18
N/A
14 ± 9
Green Queen
0.80 ± 0.30
8.53 ± 0.14
N/A
12 ± 5
Imperial Star
0.43 ± 0.16
8.67 ± 0.19
N/A
11 ± 5
0
0.26 ± 0.10 b
8.50 ± 0.11
N/A
17 ± 12
37
1.09 ± 0.23 a
8.58 ± 0.20
N/A
10 ± 3
p-value
Cultivar
0.1941
0.6230
N/A
0.9697
GA3
0.0437
0.5444
N/A
0.3037
Cultivar × GA3
0.7734
0.9285
N/A
0.1914
Effects of artichoke cultivars and planting dates on root gall index and number of root-knot nematode (RKN, Meloidogyne javanica) second-stage juveniles (J2s) in subtropical sandy soil.