The experiment picked out 107 good salt-tolerant plants from offspring produced by the first recurrent selection,and measured their general combining ability of salt-tolerance.As a result,75 salt-tolerant individual plants with high general combining ability and 32 ones with low general combining ability were selected.The 75 salt-tolerant individuals with high general combining ability were intercrossed to complete the second recurrent selection.Based on the two-generation recurrent selections,a massed sele...