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Table 2 Simulative selection of salt, alkali, and salt–alkali stress tolerant individuals of apple rootstocks by genomics-assisted prediction in an F1 population derived from Malus robusta Rehd. ‘Baleng Crab’ × M. pumila Mill. ‘M9’

From: Genomics-assisted prediction of salt and alkali tolerances and functional marker development in apple rootstocks

Trait GPV criterion Number of selections Selection rate GPV Number of selections (OPV ≤ GPV) Efficiency
Salt injury index ≤0.10 24 8.42% 0.06 13 54.17%
≤0.20 48 16.84% 0.11 28 58.33%
≤0.30 74 25.96% 0.16 35 47.30%
≤0.40 106 37.19% 0.21 41 38.68%
≤0.50 139 48.77% 0.27 45 32.37%
Alkali injury index ≤0.10 23 7.69% 0.05 13 56.52%
≤0.20 54 18.06% 0.1 22 40.74%
≤0.30 102 34.11% 0.17 33 32.35%
≤0.40 138 46.15% 0.22 39 28.26%
≤0.50 174 58.19% 0.27 42 24.14%
Salt-alkali injury index ≤0.12 0 0.00% 0 0 0.00%
≤0.22 0 0.00% 0 0 0.00%
≤0.32 83 42.78% 0.4142 26 31.33%
≤0.42 83 42.78% 0.4142 26 31.33%
≤0.52 83 42.78% 0.4142 26 31.33%
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