The project of breeding goals in 2022 for amaryllis, calla lily and caladium have completed including 50 amaryllis hybrid combinations, 35 calla lily cross combinations, and 45 caladium hybrid combinations . A total of 130 combinations have been crossed and sowing and embryo culture work. In addition, the cultivation of flowering bulbs planted in the field and the soilless medium in the greenhouse were also carried out. A total of 410 individual plants of calla lily hybrid combination, 850 amaryllis and 300 caladium were planted, for a total of 1560 plants. This project uses diploid amaryllis varieties with fragrance and tetraploid varieties to cross, and a triploid A-3 single plant with potential has been screened out. The potential progeny will be mass propagation and evaluate. Using the cell membrane thermostability(CMT) detection technology of the leaf cell membrane is to screen out the heat-resistant parents for hybrid breeding of calla lily, and screen the hybrid progenies. As a result, the progeny with heat-resistant potential are screened as 94013-1, 94011-1, 94012-1, 94065, and 94014. They will be planted in summer to evaluate the flowering situation in the future. In addition, the excellent horticultural characteristics of the hybrid progenies were screened by flower shape, flower color, flower stem length, etc., and progenies were screened as 94029, 94046, 94052 and 94068. For the screening of new strains of caladium, 300 individual plants of the hybrid progenies were planted in the plastic net greenhouse for tuber cultivation and observation of plant growth characteristics. From the evaluation of leaf shape, color, and leaf yellowing and withering time, three potential progenies which are CHB920443-09, CHB920464-18 and CHB950033-11 have been screened.

▲Fig.1 A potential progeny A-3 of amaryllis

▲Fig.2 A potential progeny of caladium