master's thesis
Botaničko podrijetlo peludi na paši mandarine u dolini Neretve

Ines Vrhovnik (2016)
Metadata
TitleBotaničko podrijetlo peludi na paši mandarine u dolini Neretve
AuthorInes Vrhovnik
Mentor(s)Dragan Bubalo (thesis advisor)
Abstract
Delta rijeke Neretve s gotovo monokulturnim nasadima mandarine unshiu (Citrus unshiu Marc.) je jedno od tri najsjevernija nasada u svijetu na kojem se komercijalno uzgajaju agrumi. Poznato je da je za normalan razvoj pčelinje zajednice potrebno osigurati dodatne količine peludi, međutim određene vrste agruma, a u koje spada mandarina unshiu imaju sterilne prašnike. Kako do sada u Hrvatskoj još nisu provedena istraživanja vezana za utvrđivanje botaničkog podrijetla peludnog tereta, stoga bi ono predstavljalo važan doprinos u utvrđivanju biljnih vrsta koje pčele pohađaju za vrijeme paše mandarine. Istraživanje je bilo provedeno tijekom paše mandarine unshiu u dolini Neretve na pčelinjoj zajednici sive pčele (Apis mellifera carnica Poll., 1879). Pelud je prikupljana vanjskim skupljačem dva puta dnevno i to u jutarnjim (8:00-13:00) i popodnevnim (13:00-18:00) satima tijekom 2014. i 2015. godine te jednom dnevno 2016. godine. U 2014. godini najveći udio peludnog tereta tijekom jutarnjih sati, odnosio se na dvogodišnji dimak (100,00 %), dok je u poslijepodnevnim satima prevladavao peludni teret klupčastog rošca (0,55 - 73,99 %), vlasnatog bušina (53,00 %) i česmine (19,35 – 48,52 %). U 2015. godini najveći se udio peludnog tereta tijekom jutarnjih sati odnosio na naranču (81,19 %), grejp (13,51 %) i pelud česmine (4,92% ), dok je u popodnevnim satima također najveći udio imao peludni teret naranče (99,62 %). U 2016. godini na lokaciji Ušće prevladavao je peludni teret naranče (33,54 – 71,81 %) , česmine (3,28 – 53,33 %) i grejpa (2,64 – 76,30 %), dok je na lokaciji Buk-Vlaka prevladavao peludni teret naranče (35,36 – 99,01 %), pastirske torbice (0,61 – 53,24 %) i klementine (0,60 – 35,12 %). Relativno niža prosječna temperatura zraka i viša prosječna relativna vlažnost zraka rezultirali su velikim udjelom peludnog tereta dvogodišnjeg dimka u 2014. godini. Iako dolina Neretve ima gotovo monokulturne nasade mandarine koja zbog sterilnih prašnika ne omogućuje pčelama prikupljanje peludi, pelud ostalih ne sterilnih agruma (naranča) bila je dosta zastupljena u prikupljenom peludnom teretu.
Keywordspollen loads pollen plants pollen load trap
Committee MembersDragan Bubalo (committee chairperson)
Ivica Ljubičić (committee member)
Tea Tomljanović (committee member)
Saša Prđun (committee member)
GranterSveučilište u Zagrebu
Agronomski fakultet
Lower level organizational unitsOpća proizvodnja bilja
PlaceZagreb
StateCroatia
Scientific field, discipline, subdisciplineBIOTECHNICAL SCIENCES
Agronomy
Landscape Architecture
Study programme typeuniversity
Study levelgraduate
Study programmeAgroecology
Academic title abbreviationmag. ing. agr.
Genremaster's thesis
Language Croatian
Defense date2016-09-29
Parallel abstract (English)
The Neretva River Delta with almost monocultural Satsuma mandarin plantations (Citrus unshiu Marc.) is one of the three northernmost places in the world where commercially grown citrus. It is known that for the normal development of bee colonies is necesaary to secure additional quantities of pollen, however certain types of citrus fruits, and that includes unshiu mandarins have sterile stamens. Howewer so far in Croatia have not yet conducted research related to the determination of the botanical origin of pollen loads, therefore it would constitute an important contribution in determining plant species that bees attending during on mandarin forage. The research was conducted during Satsuma mandarin unshiu forage in the Neretva valley on honey bee colonies of Carniolan bees (Apis mellifera carnica Poll., 1879). Pollen is collected with pollen trap twice a day during the morning (8:00-13:00) and afternoon (13:00-18:00) hours during 2014 and 2015, and once a day in 2016. In 2014., the largest share of pollen loads during morning hours, was related to the Crepis biennis (100,00%), while the prevalent pollen loads in the afternoon hours were of Cerastium glomeratum (0,55 - 73,99%), Cistus incanus (53,00%) and Quercus ilex (19,35 - 48,52%). In 2015., the largest share of pollen loads during morning hours was related to Citrus sinensis (81,19%), Citrus paradisi (13,51%) and Quercus ilex pollen (4,92%), while the largest share of pollen loads in the afternoon hours was also of oranges (99,62%). In 2016., at location Ušće dominated Citrus sinensis (33,54 - 71,81%), Quercus ilex (3,28 - 53,33%) and Citrus paradisi (2.64 - 76.30%) pollen loads, while at location Buk-Vlaka the prevalent pollen loads were of Citrus sinensis (35,36 - 99.01%), Capsella bursa pastoris (0,61 - 53,24%) and Citrus clementina (0,60 - 35,12%). The relatively lower average air temperature and higher average relative humidity resulted in a large share of Crepis biennis pollen loads in 2014. Although the Neretva valley has almost monoculture Satsuma mandarin plantations which does not provide pollen forage to bees due to sterile stamens, the pollen of other non sterile citruses (orange) was quite present in the collected pollen loads.
Parallel keywords (Croatian)peludni teret peludonosne biljne vrste skupljač peludi
Resource typetext
Access conditionOpen access
Terms of usehttp://rightsstatements.org/vocab/InC/1.0/
URN:NBNhttps://urn.nsk.hr/urn:nbn:hr:204:582550
CommitterValentina Bezek