Morphological characteristics of Indonesian Rubus flowers

Abstract. Normasiwi S, Salamah A, Surya MI. 2021. Morphological characteristics of Indonesian Rubus flowers. Biodiversitas 22: 1441-1447. spp. are woody or herbaceous plants that can be used for fruit, ornamental and medicinal purposes. The increasing use as a commercial species is highly dependent on the formation high-quality genetic material. However, lack basic biological knowledge one limiting factors in this development. This research aims to describe morphological characters flowers at Cibodas Botanical Garden, Institute Sciences, Cianjur, West Java, Indonesia. From January June 2020, we observed nine with five replications, namely R. alceifolius, chrysophyllus, ellipticus, fraxinifolius, linneatus, moluccanus, pyrifolius, rosifolius, sp (Blackberry) results showed variations pistil, stamens, torus shape, duration flowering stages between species. mean value stamen-pistil ratio pyrifolius was highest among other (8.27), fraxinifolius lowest (0.16). Furthermore, correlation analysis stamens pistils relatively positive (r = 0.598), similarly distinctly fruits r 0.763. Flower development takes ranging 10-12 days from initiation anthesis, depending