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Table 4 Earliness of the parental lines (‘C3’: ‘Romanesco C3’, ‘Alt 41’: ‘Altilis 41’) and their F1 progeny in “2008” and “2009”

From: Genetic mapping and identification of QTL for earliness in the globe artichoke/cultivated cardoon complex

Precocity trait Year Parents1 F1population2
C3 A41 Mean Range s.e. hB2
Main head (eMH) 2008 178 a 223 b 212.9 202-238 0.518 0.76
2009 162 a 218 b 206.1 190-235 0.694  
First order heads (eFOH) 2008 185 a 229 b 221.3 209-248 0.456 0.61
2009 180 a 224 b 214.0 198-239 0.828  
Second order heads (eSOH) 2008 198 a 239 b 232.6 214-267 0.695 0.54
2009 192 a 237 b 225.7 207-246 0.897  
  1. 1 Means followed by different letters within the same row are significantly different at P < 0.05.
  2. 2 s.e. : standard errors; hB2: broad sense heritability based on two years’ data.