Flower development, pollen viability and pollen storage test of Aeschynanthus radicans

Abstract. Damayanti F, Garvita RV, Wawangningrum H, Rahayu S. 2021. Flower development, pollen viability and storage test of Aeschynanthus radicans. Biodiversitas 22: 1940-1945. radicans Jack. commonly-known as lipstick flowers, is an epiphytic plant in Gesneriaceae family. It has attractive morphology easy to grow. Therefore A. used mother species for hybridization by breeders. The flowers are dichogamous strongly protandrous. matures before the stigma becomes receptive bends away down when receptive. As a thought-after material hybridization, little known about flower viability, storability. purpose this study was observe development phase A.radicans determine during investigate storability at -20?C. observed phases from small buds anthesis. Pollen tested 10%, 15%, 20% sucrose solution 4 hours. -20?C 77 days every three weeks. best concentration germination fresh 20%. highest H0 58±3% gradually decreased with flowerage. lowest 18±14% stage H5, coinciding first day 30,2±2% after 42 13,54% days.