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Results: QTL analysis

Combining the genotype data and the phenotype data collected in 2007 & 2008 QTLs for the following traits could be mapped:

  • Visual yellowing i.e. Time taken to yellow (days).
  • Minolta colour readings (L, a, b, HA & C), day 0 to day 6.
  • Head diameter (mm).
  • Stalk diameter (mm).
  • Vitamin C content at harvest (day 0).
  • Weight (g).
  • Weight loss.

The diagram below shows the positions of QTLS for colour and vitamin C content as these are the focus of my research.


QTL














QTL Key


Time to Yellowing (days) = Yellow

L = Pink

a = Green

b = Blue

Vitamin C content (Day-0) = Turquoise