GREEN SEED COAT COLOUR RETENTION IN LENTIL - University ...

Table 4.9 Mean index score for the tester set of 15 genotypes grown at SPG,
Sutherland, and Elrose during 2005 and 2006 for the heritability study of
green seed coat colour differences in lentil.
Genotype Index score
1294M-23* 5.21
CDC Viceroy 5.49
CDC Grandora 6.45
CDC Greenland 6.47
CDC Glamis 6.49
CDC Meteor 6.58
Laird 6.70
CDC Sovereign 6.71
CDC Milestone 6.77
Eston 6.78
CDC Richlea 6.80
1048-8R 6.92
CDC Plato 7.51
CDC Vantage 7.55
CDC Sedley 7.64
LSD(0.05) 1.11
* Denotes parent of the RILs
The regression of the average field index score and the index score from the
plants grown in the phytotron is shown in Figure 4.2. The regression had an R 2 =
0.03. A higher positive regression line was expected based on the fact that it was
under phytotron conditions the green seed coat colour differences were first
observed. This indicates that using the growth rooms will not predict which
genotypes will have the most or least desired phenotype in the field. The phytotron
will not provide an acceptable selection environment because of the low R 2 value
based on this study. Green seed coat colour differences are a quantitative trait and
the one environment does not provide enough insight into location effects to
provide reliable selection. More replications might increase the relationship
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