Abstract: In order to enhance the quality control of afforestation and improve the survival rate and growth of transplanted seedlings, common afforestation and economic trees in China, Koelreuteria paniculata and Punica granatum were taken as materials. A series of measures with promoting survival by keeping the seedlings trunks were adopted to explore the rescue strategy of delayed seedlings after transplanting by setting different treatment groups. Based on the formulation of the classification of seedling trunk germination viability, the germination survival rate, trunk survival index, growth, water content and root quality of each treatment were investigated in different periods. The results showed that, compared with the control treatment （L1 and S1）, the germination survival rate and trunk survival index of L3 and S3 were increased by 19.30, 52.01 percent point and 11.90, 13.50 percent point, respectively. The rejuvenation period was 60 and 75 days shorter than that of L1 and S1. In terms of annual growth, the average plant height and ground diameter of L3 and S3 were higher than those of other treatments, increasing by 45.33%, 57.84% and 38.14%, 81.82%, respectively. The water retention measures of L3 and S3 could effectively increase the moisture content of seedling trunks and promote the survival of roots and the germination of new roots. The proposed measures provided technical references for improving the survival rate and quality of ecological forests and economic forests.

Key words: promoting survival by keeping the seedlings trunks, Koelreuteria paniculata, Punica granatum, transplanted seedling