Several bromeliad species from two different subfamilies, were used to develop a reliable method to evaluate pollen viability. Pollen germination on a medium containing 20% sucrose, 0.001%H3BO3 and… (More)
Pollen germination, division of the generative nucleus and position of the generative nucleus in the pollen tube during in vitro germination were examined for six bromeliad cultivars. The influence… (More)
During in vitro pollen tube growth of Aechmea fasciata the second pollen mitosis (PM II) that produces two sperm cells was influenced by exogenous amino acids. Arginine (Arg) as single amino acid was… (More)
Pollen germination on stigma, pollen tube growth in the style and pollen tube penetration of ovules have been studied of excised pistils, after crossing and selfing of 7 bromeliad species.… (More)
The effect of cut style and placental pollination on fertilization efficiency was studied for compatible Aechmea fasciata plants. These alternative in vitro pollination techniques resulted in lower… (More)
Prefertilization barriers between different Bromeliaceae are mostly confined within the style. To control these barriers cut style, placental and placental grafted style pollination were studied.… (More)
The effect of different external factors on pollen germination and pollen tube growth is well documented for several species. On the other hand the consequences of these factors on the division of… (More)
Bromeliaceae are tropical ornamentals with a variety of colors and inflorescence shapes. Leaves with spined margins are characteristic for the genus Aechmea. Crosses between spineless and spined… (More)