Nectar Secretion Dynamics and Honey Production Potential of <i>Croton macrostachyus</i> L., Euphorbiaceae

Bareke, Tura; Kumsa, Tesfaye; Roba, Kasim; Addi, Admassu

doi:10.1080/0005772x.2020.1763086

Cited by 9 publications

(23 citation statements)

References 13 publications

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“…The quantity of secreted nectar and the sugar concentration of nectar were found to be year-dependent also in Campanula patula [ 13 ] and Hyacinthus orientalis [ 14 ], but in the case of Oenothera species no difference was measured within a species regarding total quantity of nectar production by a flower between years [ 18 ]. Contrary to our results, the study conducted by [ 43 ] on Croton macrostachyus L. revealed that there is a significant difference in the mean nectar volume among study sites, but mean nectar concentration was not significantly different among study sites. These results suggest that nectar traits can be affected in a species-specific manner both by study site, and yearly changes of climatic and soil factors.…”

Section: Discussioncontrasting

confidence: 99%

Soil Humus, Iron, Sulphate and Magnesium Content Affect Nectar Traits of Wild Garlic (Allium ursinum L.)

Bodó

Farkas

Nagy

et al. 2021

Plants

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Recent studies revealed that from various ecological factors influencing nectar yield and quality of a plant, soil properties can be as important as microclimatic features. To date, few studies have investigated the relationship of soil characters to nectar traits of bee pollinated plants growing in natural associations. Our study intended to reveal which soil properties had the most powerful impact on nectar variables of wild garlic (Allium ursinum L.). Specimens were collected from fourteen habitats in two different years, and were potted in their original soil under the same climatic conditions. Nectar volumes and sugar concentrations were measured and soil samples were analysed for fourteen parameters. Statistical analyses revealed that the number of nectar producing Allium flowers, as well as the nectar volume and sugar content of nectar in individual flowers were influenced by both year and habitat. The humus, iron and sulphate content of soil showed negative correlation with the number of flowers producing nectar; total nectar volumes were negatively correlated with humus and iron content, but positively affected by magnesium content of the soil. Our results suggest that in addition to the effect of microclimatic factors, certain soil properties can have significant impact on nectar traits.

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Section: Discussioncontrasting

confidence: 99%

Soil Humus, Iron, Sulphate and Magnesium Content Affect Nectar Traits of Wild Garlic (Allium ursinum L.)

Bodó

Farkas

Nagy

et al. 2021

Plants

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“…During our research, we compiled the information of these two literature sources to generate a visibly attractive scheme of a flowering calendar for Ethiopia, which is available as a supplement to this review (Table A.1). The following plants provide monofloral honey and are considered to be important forage plants for bees in Ethiopia: Acacia, Becium grandiflorum, Croton macrostachyus, Eucalyptus globulus, Hypoestes, Leucas abyssinica, Schefflera abyssinica, Syzygium guineense and Vernonia amygdalina (Belay et al 2017;Bareke et al 2020).…”

Section: Forage and Pollinationmentioning

confidence: 99%

Challenges and perspectives for beekeeping in Ethiopia. A review

Gratzer

Wakjira

Fiedler

et al. 2021

Agron. Sustain. Dev.

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The honey bee is an important fruit and vegetable pollinator and a producer of honey and other hive products. Beekeeping is a sustainable and high-potential activity for local communities and especially for the rural poor to gain additional income through non-timber forest products, does not require much land or high starting costs, maintains biodiversity and increases crop yields. Ethiopia is one of the top ten honey and beeswax producers in the world, but plays only a minor role in the international honey trade. Unlike large-scale beekeepers using modern techniques found in most leading honey-producing countries, the majority of Ethiopian beekeepers are small-scale producers practicing traditional beekeeping. In this article, we summarize the knowledge on Ethiopian beekeeping, honey bees, honey bee pests, marketing strategies, cultural aspects and major challenges of beekeeping. Furthermore, we used FAOSTAT data to calculate a pollination gap in order to draw the attention of stakeholders and decision-makers to bees and their importance in pollination and sustainable rural development. In regard to forage, we compiled 590 bee forage plants and their flowering times as a supplement to the article. This review outlines the following major points: (1) Ethiopia is a top honey and beeswax producer mainly for the domestic market; (2) Equipment for traditional beekeeping is easily accessible but brings disadvantages (gender gap, limitations in hive management and lower honey yield), while transitional and modern systems require certain beekeeping skills and higher starting costs; (3) Colony numbers increased by 72% from 1993 to 2018 and crop areas needing pollination by 150%; (4) Honey yield per hive and number of beehives managed per area of bee-pollinated crops increased by 20% and 28%, respectively; (5) Pesticide use has been increasing and there is a lack in pesticide use education. Recommendations to realize Ethiopia’s tremendous apicultural potential are discussed.

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“…Generally, to integrate the honey production with the conservation of forest and watershed, examination of honey production capacity of bee plants is very essential to determine the optimum honeybee colony carrying capacity of plant species. Estimating the number of honeybee colonies with an existing resource is used to increase the yield of honeybee colonies for alleviating the problem of colony overstocking (Al-Ghamdi et al, 2016;Bareke et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…The honey production capacity of bee plants is estimated using the nectar volume and concentration (Bareke et al, 2020). Nectar is an aqueous solution that attracts pollinators.…”

Section: Introductionmentioning

confidence: 99%

“…Nectar composition, mainly amino acids and sugar, which may influence pollinator attraction and fidelity (Bertazzini & Forlani, 2016). Nectar secretion pattern is also greatly influenced by biotic and abiotic factors (Jakobsen & Kristjansson, 1994;Burkle & Irwin, 2009;Bareke et al, 2020). Hence, the knowledge of bee plants and nectar secretion potential is very important to understand the plantanimal relationship (Galetto & Bernardello, 2004).…”

Section: Introductionmentioning

confidence: 99%

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2021

Plants Environ

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The honey production capacity of bee flora is used to estimate the optimum colony carrying capacity of given area that helps to harvest the best honey yield. The research was conducted to quantify the nectar secretion pattern, the effect of temperature and humidity on dynamics of nectar secretion, and honey production capacity of Callistemon citrinus. One day before nectar collection, five inflorescences were enclosed with mesh bags on different branches of the tree. From these, twenty flowers were randomly selected per tree for the measurement of nectar volume. Additionally, nectar volume and concentration, temperature, and air humidity were measured with an interval of one hour. One way ANOVA and linear regression were used for data analysis. The average amount of nectar and its concentration were different significantly within the time of the day. Nectar amount was correlated positively with humidity while concentration was negatively correlated with temperature. The average nectar volume (µl) per flower in 24 hours, sugar amount per tree (kg), honey yield per individual tree (kg) and honey production capacity of Callistemon citrinus per hectare were 10. 9+0.4, 0.65, 0.79, and 1264 kg (46-3808 kg), respectively. The real expected honey yield was 632 kg ha -1 . Total financial return was estimated to be $4424 based on a value of $7 kg -1 of Callistemon citrinus honey. Therefore, the multiplication and plantation of this plant are suggested for honey production.

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Nectar Secretion Dynamics and Honey Production Potential of Croton macrostachyus L., Euphorbiaceae

Cited by 9 publications

References 13 publications

Soil Humus, Iron, Sulphate and Magnesium Content Affect Nectar Traits of Wild Garlic (Allium ursinum L.)

Soil Humus, Iron, Sulphate and Magnesium Content Affect Nectar Traits of Wild Garlic (Allium ursinum L.)

Challenges and perspectives for beekeeping in Ethiopia. A review

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