Nectar production in Galanthus reginae-olgae subsp. vernalis Kamari from the Adriatic Sea coast
Само за регистроване кориснике
2013
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
There are six species of the genus Galanthus L. on the Balkan Peninsula. Among them, G. reginae-olgae Orph.
occurs in Greece, Albania, Montenegro and Croatia. It commonly grows in beech forests, on calcareous soils,
at altitudes from 300 to 600 m. The nectar production in G. reginae-olgae subsp. vernalis Kamari, originating from the Adriatic Sea coast, was examined, in order to determine its significance as nectariferous plant.
Investigation included analysis of the total daily nectar amount per flower and dynamics of nectar secretion
during the day and during the flower ontogeny. The intensity of nectar secretion was determined using a microcapillary method. Nectar was collected at three hour intervals during daytime (from 07.00 to 19.00). The
results show that the total daily quantity of nectar is low (average 0.02 µl/flower), confirming the literature
data that Galanthus species are poor nectar producers. Considering the dynamics of nectar secretion, the flowers produced necta...r only once a day (in the morning). Also, nectar was detected only once during the flower
ontogeny, which (in average) lasted 6.5 days. The low nectar production of G. reginae-olgae is attributable to
flowering period, coinciding with inactivity period of the majority of insect pollinators. However, this plant is a
valuable source of food for primary flower-visiting insects, feeding on its nectar during the late autumn, winter,
and early spring period, when only small number of species is in flower.
Извор:
4th Croatian Botanical Symposium with international participation, 2013, 213-Институција/група
Poljoprivredni fakultetTY - CONF AU - Jovanović, Filip AU - Obratov-Petković, Dragica AU - Mačukanović-Jocić, Marina PY - 2013 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/6827 AB - There are six species of the genus Galanthus L. on the Balkan Peninsula. Among them, G. reginae-olgae Orph. occurs in Greece, Albania, Montenegro and Croatia. It commonly grows in beech forests, on calcareous soils, at altitudes from 300 to 600 m. The nectar production in G. reginae-olgae subsp. vernalis Kamari, originating from the Adriatic Sea coast, was examined, in order to determine its significance as nectariferous plant. Investigation included analysis of the total daily nectar amount per flower and dynamics of nectar secretion during the day and during the flower ontogeny. The intensity of nectar secretion was determined using a microcapillary method. Nectar was collected at three hour intervals during daytime (from 07.00 to 19.00). The results show that the total daily quantity of nectar is low (average 0.02 µl/flower), confirming the literature data that Galanthus species are poor nectar producers. Considering the dynamics of nectar secretion, the flowers produced nectar only once a day (in the morning). Also, nectar was detected only once during the flower ontogeny, which (in average) lasted 6.5 days. The low nectar production of G. reginae-olgae is attributable to flowering period, coinciding with inactivity period of the majority of insect pollinators. However, this plant is a valuable source of food for primary flower-visiting insects, feeding on its nectar during the late autumn, winter, and early spring period, when only small number of species is in flower. C3 - 4th Croatian Botanical Symposium with international participation T1 - Nectar production in Galanthus reginae-olgae subsp. vernalis Kamari from the Adriatic Sea coast SP - 213 UR - https://hdl.handle.net/21.15107/rcub_agrospace_6827 ER -
@conference{ author = "Jovanović, Filip and Obratov-Petković, Dragica and Mačukanović-Jocić, Marina", year = "2013", abstract = "There are six species of the genus Galanthus L. on the Balkan Peninsula. Among them, G. reginae-olgae Orph. occurs in Greece, Albania, Montenegro and Croatia. It commonly grows in beech forests, on calcareous soils, at altitudes from 300 to 600 m. The nectar production in G. reginae-olgae subsp. vernalis Kamari, originating from the Adriatic Sea coast, was examined, in order to determine its significance as nectariferous plant. Investigation included analysis of the total daily nectar amount per flower and dynamics of nectar secretion during the day and during the flower ontogeny. The intensity of nectar secretion was determined using a microcapillary method. Nectar was collected at three hour intervals during daytime (from 07.00 to 19.00). The results show that the total daily quantity of nectar is low (average 0.02 µl/flower), confirming the literature data that Galanthus species are poor nectar producers. Considering the dynamics of nectar secretion, the flowers produced nectar only once a day (in the morning). Also, nectar was detected only once during the flower ontogeny, which (in average) lasted 6.5 days. The low nectar production of G. reginae-olgae is attributable to flowering period, coinciding with inactivity period of the majority of insect pollinators. However, this plant is a valuable source of food for primary flower-visiting insects, feeding on its nectar during the late autumn, winter, and early spring period, when only small number of species is in flower.", journal = "4th Croatian Botanical Symposium with international participation", title = "Nectar production in Galanthus reginae-olgae subsp. vernalis Kamari from the Adriatic Sea coast", pages = "213", url = "https://hdl.handle.net/21.15107/rcub_agrospace_6827" }
Jovanović, F., Obratov-Petković, D.,& Mačukanović-Jocić, M.. (2013). Nectar production in Galanthus reginae-olgae subsp. vernalis Kamari from the Adriatic Sea coast. in 4th Croatian Botanical Symposium with international participation, 213. https://hdl.handle.net/21.15107/rcub_agrospace_6827
Jovanović F, Obratov-Petković D, Mačukanović-Jocić M. Nectar production in Galanthus reginae-olgae subsp. vernalis Kamari from the Adriatic Sea coast. in 4th Croatian Botanical Symposium with international participation. 2013;:213. https://hdl.handle.net/21.15107/rcub_agrospace_6827 .
Jovanović, Filip, Obratov-Petković, Dragica, Mačukanović-Jocić, Marina, "Nectar production in Galanthus reginae-olgae subsp. vernalis Kamari from the Adriatic Sea coast" in 4th Croatian Botanical Symposium with international participation (2013):213, https://hdl.handle.net/21.15107/rcub_agrospace_6827 .