Seed germination of Psidium cattleianum Afzel. ex Sabine depending on the level of light intensity in the greenhouse complex of Donetsk Botanical Garden

The influence of natural light intensity on the seed germination of the yellow-fruited form of Psidium cattleianum Afzel. ex Sabine was studied in the greenhouse complex conditions of Donetsk Botanical Garden. It was found that maximum germination (44.1 %) is achieved under full illumination (3882.4± 235.9 lx). 50 % reduction in light intensity significantly reduces germination by 14.4 %. The results proved the positive photoblastism of seeds and the importance of optimal light regime for the species propagation.