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Table 2 Impact of mating schemes on selection parameters when ΔC = 2%, Nmax = 100 and h2 = 0.05

From: Optimization of selection contribution and mate allocations in monoecious tree breeding populations

 

F7

G7

∑r2/4

ΔVA

Nsel

Ncro

Nful

α 7

RM

0.124

7.07

0.0127

-9.0

44

83.5

60.0

0.00247

PAM

0.156

7.14

0.0129

7.8

42.5

74.8

67.1

0.0441

PAMCM

0.157

6.95

0.0127

5.2

41.6

70.3

71.5

0.0438

MCM1

0.0916

6.96

0.0113

-0.6

41.7

70.4

72.2

-0.0334

MCM2

0.0959

7.39

0.0119

-9.0

46.2

94.8

52.8

-0.0307

MCM3

0.105

7.51

0.0118

-4.8

46.3

100.0

50.0

-0.0206

MCM4

0.119

7.57

0.0121

7.3

46.3

99.4

50.3

-0.00639

  1. Investigated parameters were: accumulated inbreeding (F7), accumulated genetic merit (G7), sum of squared long term genetic contributions of founders (∑r2/4), difference in additive genetic variance component in percentage (ΔVA), average number of selected trees per generation (Nsel), average number of crosses per generation (Ncro), average number of full-sibs/family in each generation (Nful), deviation from H-W equilibrium (α7) at generation seven. Standard errors ranged between 0.0004 and 0.0030 for F7, 0.11 and 0.13 for G7, 0.0001 and 0.0005 for ∑r2/4.