The project of breeding goals in 2025 for amaryllis, calla lily and caladium have completed including 150 amaryllis hybrid combinations, 55 calla lily cross combinations, and 85 caladium hybrid combinations. A total of 290 combinations have been crossed and sowing and embryo culture work.

In the screening of amaryllis hybrid offspring in the breeding program for varieties with floral market value, the individual plants from 114B016 and 114A020 were screened for their potential for floral market value based on the number of floret orientation, flower color type, and other characteristics. In the breeding of calla lilies, cell membrane thermostability (CMT) testing was utilized to screen for heat-tolerant commercial varieties, such as 'White Chocolate', to serve as parental lines for hybridization, with hybrid progeny, including 114003, 114004, and 114005, subsequently obtained through embryo rescue technology and subjected to corm propagation. Furthermore, uses the CMT test on calla lily leaves to identify hybrid progeny lines derived from heat-tolerant parent plants, including '107016', '108021', '105032', and '105053'. Based on plant height, leaf length, leaf morphology, scape length, and flower color traits, two promising lines are selected, namely '107016' and '108021'. In the future, CMT testing will be conducted to confirm their heat resistance performance, and comprehensive evaluations of growth and trait expression will be carried out to identify the most promising individual plants within these lines. In terms of screening of new caladium lines, an excellent line was submitted for plant variety right (PVR) application under the name ‘TSS No.5 - Morning Mist Glimmer’. The non-exclusive PVR technology transfer for ‘TSS No. 3 - Brilliant Ruby’ and ‘TSS No. 4 - Sakura Snow’ was completed. In addition, 800 individual hybrid plants were planted in a net greenhouse for tuber cultivation and plant traits observation. Based on a comprehensive evaluation of traits such as leaf shape, leaf vein color, and leaf stripe color, three potential strains were selected, namely CHB112014-02, CHB920243-22, and CHB920335-03.

▲Fig.1 2025 amaryllis new strain observation meeting		▲Fig.2 Trait performance of superior individual plants in calla lilies.
		▲Fig.3 Three Promising Caladium Progeny.