Methods of Melissopalynology

Louveaux, J.; Maurizio, A.; Vorwohl, G.

doi:10.1080/0005772x.1970.11097312

Cited by 256 publications

(266 citation statements)

References 14 publications

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“…Galega officinalis was the most frequently observed weed, according to the classification system developed by Louveaux et al (1970), as this weed appeared in more than 91% of the honey samples analyzed. Although the pollen grains of G. officinalis were found at varying frequencies, in 14% of the honey samples, the level of abundance of G. officinalis was greater than 45%; such honey samples were classified as monofloral.…”

Section: Resultsmentioning

confidence: 99%

“…This finding implies that R. raphanistrum pollen represents a valuable resource for A. mellifera and that it may contribute to a great extent, during its flowering period, to the feeding of the hive. (Matthei, 1995) and their level of abundance and frequency of appearance (Louveaux et al, 1970). Number of samples according to abundance: very frequent (≥ 45% of the total pollen grains counted); frequent (16-45%); rare (3-15%) and occasional (< 3%).…”

Section: Resultsmentioning

confidence: 99%

“…After classification, the pollen grains from different weeds were then grouped according to the methodology described by Louveaux et al (1970), in which each pollen type in a honey sample is categorized according to the percentage of the sample that is derived from that pollen type. The categories are as follows: very frequent (≥ 45% of the total pollen grains counted), frequent (16-45%), rare (3-15%) and occasional (< 3%).…”

Section: Methodsmentioning

confidence: 99%

“…A total of 19 weeds were identified at the species level from the pollen types found, and five weeds were identified at the genus level. The weeds were classified as contributing very frequently, frequently, rarely and occasionally to honey using the methodology described by Louveaux et al (1970) for determining the frequency with which plant species contribute to honey based on the corresponding pollen types found in honey. Overall, 74% of the weeds used by Apis mellifera were European, and 53% of the weeds had perennial life cycles.…”

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confidence: 99%

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The importance of weeds as melliferous flora in central Chile

et al. 2014

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in Chile has been demonstrated in many studies; however, certain species that are viewed as weeds contribute extensively to the floral composition of honey. A total of 92 honey samples from the Libertador General Bernardo O'Higgins region in Chile were analyzed to determine which weeds are most important in honey production and which are most preferred by melliferous bees. Their relative contributions to the pollen fraction of each honey sample were also determined using melissopalynological tests in accordance with Chilean regulation (NCh2981.Of2005; Ministerio de Agricultura. 2006) to evaluate the botanical origins of the honey samples. Species considered weeds were classified according to their importance in Chilean crops, as proposed by Matthei (1995), based on the classification system by Holm (1979). These authors categorize weeds on a scale that ranges from "very serious", if they potentially cause significant crop loss, to "occasionally present as weeds" if they are part of the national flora. A total of 19 weeds were identified at the species level from the pollen types found, and five weeds were identified at the genus level. The weeds were classified as contributing very frequently, frequently, rarely and occasionally to honey using the methodology described by Louveaux et al. (1970) for determining the frequency with which plant species contribute to honey based on the corresponding pollen types found in honey. Overall, 74% of the weeds used by Apis mellifera were European, and 53% of the weeds had perennial life cycles. The families that contributed the most to honey production were Fabaceae, Asteraceae and Brassicaceae. The importance of species viewed as weeds in the production of Chilean honey is discussed.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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The importance of weeds as melliferous flora in central Chile

et al. 2014

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“…Before analysis, the honeys were defrosted at 40 °C and homogenized by gently stirring for 10 minutes. Screening for floral purity was based on pollen analysis (LOUVEAUX; MAURIZIO;WORWOHL, 1978).…”

Section: Samplesmentioning

confidence: 99%