The try cpc etc2 triple mutant can be differentiated from try cpc double mutant. Representative triple and double mutants and the wild type are shown. The seeds were sown on MS plates, vernalized at 4°C for 3 days, and transferred to an illumination incubator and allowed to grow for 10 days. The seedlings were transplanted to soil and allowed to grow for 17 days before photographing. The triple and double mutants were segregated from A17 T1 lines.