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Table 5 Effect of GA3 and melatonin on secondary head quality of two artichoke cultivars during the two growing seasons of 2017/2018 and 2018/2019

From: Response of two seed-grown artichoke cultivars to GA3 and melatonin treatments

TreatmentsWeight (g)Length (mm)Diameter (mm)Edible part (g)
First season (2017/2018)
 Cultivars
  Imperial Star (IS)202.4 a97.3 a92.9 a41.6 a
  Romanesco (R)186.0 b86.7 b82.5 b38.4 b
 Foliar application
  Melatonin195.0 a92.2 a87.7ab40.1ab
  GA3195.5 a92.8 a88.4 a40.9 a
  Control192.0 b91.0 b87.1 b39.1 b
 Interactions
  ISMelatonin203.5 a97.7 a92.8 a41.8 a
GA3203.9 a98.3 a93.7 a42.1 a
Control199.7 b95.9 b92.3 a40.9 a
  RMelatonin186.5 c86.7 c82.6 b38.3 a
GA3187.1 c87.3 c83.1 b39.7 a
Control184.3 c86.1 d81.9 b37.2 a
Second season (2018/2019)
 Cultivars
  Imperial Star (IS)199.6 a96.6 a91.7 a41.2 a
  Romanesco (R)184.1 b86.8 b80.7 b38.2 b
 Foliar application
  Melatonin192.1 a91.9ab86.4 a40.0 a
  GA3193.2 a92.3 a86.9 a40.4 a
  Control190.4 b90.9 b85.3 b38.9 b
 Interactions
  ISMelatonin199.6 a96.8ab91.9 a41.4 a
GA3201.2 a97.5 a92.4 a41.9 a
Control198.0 a95.4 b90.7 a40.5 a
  RMelatonin184.5 b87.0 c80.8 b38.5 a
GA3185.2 b87.1 c81.4 b38.8 a
Control182.7 b86.3 c79.8 b37.3 a
  1. Means within each column within main effects and interactions followed by the same letter are not significantly different at P < 5%