Wild Cherry - valbro.de
Wild Cherry - valbro.de
Wild Cherry - valbro.de
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Selection and Breeding of<br />
<strong>Wild</strong> <strong>Cherry</strong><br />
A new seed orchard – Selection of mother trees<br />
Selectie strategie (2/3)<br />
• Afstammingstesten<br />
− seed collection in multiclonal plantations half-sib progeny<br />
− establishment of 13 experimental plantations ( 11.3 ha )<br />
− estimation of heritability h² A of selection criteria<br />
− assessment of General Combining Ability (GCA) for each trait<br />
for each genotype<br />
n m i n m i<br />
GCA i = ( Σ Σ T ij ) / ( Σ m i ) - ( Σ T ij ) / m i<br />
i=1 j=1 i=1 j=1<br />
with<br />
m i = nbr. of seedlings within the hal-sib progeny of genotype i<br />
n = number of genotypes
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