scholarly journals The pollen spectrum of honeys of Lipnik Gmina (Świętokrzyskie Province)

2012 ◽  
Vol 59 (1) ◽  
pp. 251-256
Author(s):  
Ernest Stawiarz

During 2003 and 2004 apicultural seasons, 25 samples of honeys were collected in 10 localities of Lipnik (świętokrzyskie Province) countryside. Pollen analysis was made according to the requirements of the International Commission for Bee Botany IUSB (Louveaux et al., 1978). There were identified pollen of 85 taxa in the examined samples of honeys: pollen of 62 nectariferous and 23 non-nectariferous plants. Participation of non-nectariferous plant pollen in particular samples ranged between 0.3 and 28.4%. Among the nectariferous plant pollen, the highest pollen frequency (above 50%) have been stated for Brassicaceae (with <i>Brassica napus</i>), <i>Prunus</i> type, <i>Trifolium repens</i>, <i>Anthriscus</i> type, <i>Salix</i>, <i>Aesculus</i>, <i>Rubus</i> type, <i>Tilia</i>, <i>Taraxacum</i> type, <i>Galeopsis</i> and <i>Heracleum</i> type, among non-nectariferous plans: <i>Poaceae</i>, <i>Papaver</i> and <i>Fragaria</i>. On average, a particular honey contained 16 pollen types of nectariferous plants (range 7-26) and 7 of non-nectariferous (range 1-13). Among the examined samples, there were 11 specific honeys: 7 compatible with the Polish Standard - 4 samples of <i>Brassica napus</i> honeys, 2 <i>Robinia pseudacacia</i>, 1 <i>Tilia</i>, and 4 samples of honeys out of his this standard. There were 3 <i>Galeopsis</i> honeys and 1 honey from <i>Phacelia</i>. The remaining 14 samples were classified as multifloral honeys compatible with the Polish Standard. The woods and scrubs as well as meadows and pastures supplied main sources of honeybee flow in the examined area.

Foods ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 225
Author(s):  
Asma Ghorab ◽  
María Shantal Rodríguez-Flores ◽  
Rifka Nakib ◽  
Olga Escuredo ◽  
Latifa Haderbache ◽  
...  

This study aimed to characterize the honeys of Babors Kabylia through sensory, melissopalynological and physico-chemical parameters. Thirty samples of honey produced in this region were collected over a period of two years and analyzed. All the samples presented physico-chemical parameters in conformity with legislation on honey quality, with few exceptions, linked mainly to beekeeping management. The pollen spectrum revealed a great diversity with 96 pollen types. The main pollen types were spontaneous species as Fabaceae (Hedysarum, Trifolium, Genisteae plants), Asteraceae plants, Ericaceae (Erica arborea L.) or Myrtus and Pistacia. The sensory properties of samples showed a high tendency to crystallization, the colors were from white to brown, but most of them had gold color. Smell and odor corresponded mainly to vegetal and fruity families and in taste perceptions besides sweetness highlighted sourness and saltiness notes. Seventeen samples were polyfloral, one was from honeydew and twelve were monofloral from heather, genista plants, sulla, blackberry or Asteraceae. Heather and the honeydew samples showed the darkest color, the highest electrical conductivity and phenol and flavonoid content. A statistical analysis based on the most representative pollen types, sensory properties and some physico-chemical components allowed the differentiation of honey samples in terms of botanical origin.


2007 ◽  
Vol 79 (3) ◽  
pp. 381-388 ◽  
Author(s):  
Geni da S. Sodré ◽  
Luís C. Marchini ◽  
Carlos A.L. de Carvalho ◽  
Augusta C. de C.C. Moreti

Knowledge about the botanical source of honey is very important for the beekeeper while it indicates adequate and abundant supply sources of nectar and pollen for the bees, thus contributing toward improved yield. The present study means to identify the pollen types occurring in 58 samples of honey produced in two states of the northeastern region of Brazil, Piauí (38 samples) and Ceará (20 samples), and to verify the potential of the honey plants during the months of February to August. The samples were obtained directly from beekeepers in each state and analyzed at the Apiculture Laboratory of the Entomology Section of Escola Superior de Agricultura "Luiz de Queiroz", USP, Piracicaba, State of São Paulo, Brazil. The pollen analysis was performed using the acetolysis method. The samples were submitted to both a qualitative and a quantitative analysis. The dominant pollen in the State of Ceará is from Mimosa caesalpiniaefolia, M. verrucosa, Borreria verticillata, Serjania sp., and a Fabaceae pollen type, while in the State of Piauí it is from Piptadenia sp., M. caesalpiniaefolia, M. verrucosa, Croton urucurana and Tibouchina sp.


1964 ◽  
Vol 42 (2) ◽  
pp. 181-196 ◽  
Author(s):  
J. C. Ritchie

The results of pollen analysis of three sections of lake sediment, sampled in the Riding Mountain area of Manitoba, suggest a tentative division of each into four zones. The lower, interpreted as representing a closed white spruce forest, is followed by an apparently treeless episode tentatively interpreted as a grassland phase; this is followed by a zone which suggests indirectly the prevalence of deciduous forests, possibly dominated by poplar, birch, and oak. The development of the mixed boreal forest, which prevails today, is marked by a rise in the spruce and alder curves. The suggestion that the sections are post-Valders in age is corroborated to some extent by a carbon-14 age measurement of 9570 years from a sample of spruce wood excavated from the bottom of a filled-in kettle in the vicinity; associated gyttja yielded a pollen spectrum very similar to the I zones of the diagrams.


1982 ◽  
Vol 54 (5) ◽  
pp. 403-420
Author(s):  
Anna-Liisa Varis ◽  
Juha Helenius ◽  
Kari Koivulehto

Pollen spectra were analysed on 160 honey samples representing the whole beekeeping area of Finland in the years 1977 and 1978. A semi-quantitative method of pollen analysis based online counts was developed. It was found efficient for determining the relative numbers of pollen grains in the honey samples. On average, ca. 16 pollen types were identified per sample. The number of honeydew elements was low in all samples. Brassicaceae pollen was the dominant type. The other most frequent and abundant types were pollen grains of Trifolium repens + T. hybridum, Salix spp., "the Rosaceae group” (Prunus, Malus, Sorbus spp.), Apiaceae, and Filipendula ulmaria. These pollen types constituted 90.8 % (1977) and 90.3 % (1978) of all the pollen examined. Between 1960—1963 and 1977—1978 the average proportion of Brassicaceae pollen has risen, while the proportion of T. repens + T. hybridum pollen has decreased, evidently due to the changes in agricultural practices. The seasonal variation in the pollen spectrum was explained by the weather conditions. Regionally characteristic pollen spectra were not found, although Brassicaceae pollen was typical of the honeys of agricultural zones I and II, due to cultivation of Brassica oilseed crops in those regions. The positive correlation of the proportion of Brassicaceae pollen with the total pollen count is discussed in connection with the problem of determining the botanical origin.


Bee World ◽  
1962 ◽  
Vol 43 (2) ◽  
pp. 49-51
Author(s):  
A. Maurizio ◽  
J. Louveaux

1975 ◽  
Vol 23 (2) ◽  
pp. 355 ◽  
Author(s):  
WH Litchfield

A pollen analysis of acid clays under brigalow is presented. The pollen fluxes in a first pair of soil profiles throw light upon the natural history of one locality as regards both its modern vegetation and the physical stability of gilgai. Fluxes in the relative pollen preservation indicate intensity of biological attack on the exine. In a profile representative of the higher level, preservation is good enough, erosion or fill on a micro-scale so slight, and any vertical down-wash so slow as to show up residual flux variations from successional change. But under this natural canopy, even though there is only a very slow wash of litter and soil down to the bottom of the depression, a faster tempo of decay than any in the higher ground, and physical incorporation down deeper cracks, maintain a balance that prevents accumulation on an almost bare surface. This shows up in deeper penetration of pollen grains, in even the residual pollen types being severely eroded, and in irregular fluxes in which the successional trace is lost. Presumably, old Myrtaceae types have washed out of the soil above. The pollen fluxes indicate a natural replacement of eucalypt forest by brigalow some time before clearing. The expanding fluxes at the immediate surface are taxa from outside the forest, particularly the Chenopodiaceae, that would have become more abundant after clearing. Insight into soil stability comes from the marked contrast in the distribution and the preservation of the pollen grains across the microrelief. The higher level is physically more stable than the bottom of the adjacent depression. Depressions are surprisingly dry in natural forest, but these pollen fluxes suggest that they are occas- ionally the wettest microenvironment.


Author(s):  
Г.П. ЧЕКРЫГА ◽  
К.Н. НИЦИЕВСКАЯ ◽  
О.Б. ЮДИНА

Разработка систем качества потребляемых населением продуктов из меда невозможна без оценки флористического богатства региона. Цель настоящего исследования – установление ботанического происхождения меда по пыльцевому анализу, а также бонитета медоносной растительности юга Западной Сибири. Объектом исследования были 92 образца меда сбора 2019 года, полученные с пасек, расположенных в разных почвенно-климатических зонах региона. Для анализа из образца массой 200 г стеклянной палочкой мед наносили на предметное стекло в количестве одной естественной капли, закрывали покровным стеклом и под микроскопом при увеличении 400 исследовали морфологическое строение пыльцевых зерен. После идентификации пыльцевых зерен при увеличении 100 подсчитывали количество зерен каждого найденного морфологического типа. Затем вычисляли среднее арифметическое значение результатов пяти параллельных исследований в 5 каплях, определяли сумму средних арифметических значений общего количества подсчитанных пыльцевых зерен каждого идентифицированного типа и вычисляли частоту встречаемости. Ботаническое происхождение меда определяли исходя из процентного количества пыльцевых зерен в меде: при количестве пыльцевых зерен одного морфологического типа, превышающем 45%, образец считали монофлерным, от 44 до 15% – составной частью смешанного меда (полифлерным), от 14 до 0% – фиксировали присутствие, но не принимали в расчет. Установлено, что при получении монофлерных медов медоносные пчелы предпочитают растения: дягиль сибирский (Archangellica decurens Idb.), дудник лесной (Angelica silvestris L.), донник желтый, (Melilotus officinalis L.), донник белый, (Melilotus albus Medic.), рапс (Brássica nápus L.), синяк обыкновенный (Echium vulgare L.). По наличию пыльцевых зерен в образцах меда установлено, что 82,02% видов медоносных растений являются дикорастущими, 17,08% введены в культуру и используются для получения продуктов питания, кормов, как припасечные растения. Выявлена связь почвенно-климатических зон с видовым приоритетом пыльцевых зерен растений в образцах меда. Для всего региона это дикорастущие виды – дягиль сибирский и дудник лесной, с которых получено максимальное количество монофлерных медов – 42,42%. The development of quality systems for honey products consumed by the population is impossible without an assessment of the floral wealth of the region. The purpose of this study is to establish the botanical origin of honey by pollen analysis, as well as the bonitet of honey-bearing vegetation in the south of Western Siberia. The object of the study was 92 samples of honey collected in 2019, obtained from apiaries located in different soil and climatic zones of the region. For the analysis, honey in the amount of one natural drop was applied with a glass stick to a slide, covered with a cover glass. The morphological structure of pollen grains was examined under a microscope at a magnification of 400. After identification of pollen grains at an increase of 100, the number of grains of each morphological type found was counted. Then the arithmetic mean of the results of five parallel determinations in 5 drops was calculated, the sum of the arithmetic mean values of the total number of counted pollen grains of each identified type was determined, and the frequency of occurrence was calculated. The botanical origin of honey was determined based on the percentage of pollen grains present: when the number of pollen grains of the same morphological type exceeds 45%, the sample was considered monoflower, from 44 to 15% – a component of mixed honey (polyflower), from 14 to 0% – the presence was recorded, but not taken into account. It was found that when obtaining monofleral honey, honey bees prefer plants: siberian angelica (Archangellica decurens Idb.), wood angelica (Angelica silvestris L.), yellow melilotus (Melilotus officinalis L.), white melilotus (Melilotus albus Medic.), rapeseed (Brássica nápus L.), common bruise (Echium vulgare L.). Based on the presence of pollen grains in honey samples, it was found that 82,02% of honey plant species are wild, 17,08% are introduced into culture and are used for food, feed, and as supply plants. The connection of soil-climatic zones with the specific priority of pollen grains of plants in honey is revealed. For the entire region, these are wild species – siberian angelica and forest angelica, from which the maximum amount of monoflower honey is obtained – 42,42%.


1979 ◽  
Vol 57 (21) ◽  
pp. 2428-2442 ◽  
Author(s):  
Rolf W. Mathewes

Six morphological types of Polemonium pollen are described, including P. micranthum which is the only taxon considered to be consistently identifiable to species. A key to the pollen types as seen in light microscopy is presented along with light and scanning electron micrographs of each type. The palynological evidence supports the taxonomic treatment of P. uciitiflorum and P. occidentale as subspecies of P. caeruleum, and supports a close affinity between P. pectinatum and P. foliosissimum. Brief summaries of the present-day ecology and distribution of Pacific Northwestern Polemonium species are presented. The application of indicator pollen analysis in Quaternary paleoecology is discussed, with special references to examples of paleoenvironmen-tal inference using Polemonium pollen types.


Bee World ◽  
1959 ◽  
Vol 40 (2) ◽  
pp. 38-41
Author(s):  
A. Maurizio ◽  
J. Louveaux

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