Honeybee pollination of strawberries (Fragaria x ananassa Duchesne)

1988 ◽  
Vol 28 (3) ◽  
pp. 435 ◽  
Author(s):  
RD Goodman ◽  
BP Oldroyd
Keyword(s):  
Apis Mellifera ◽  
Fragaria X Ananassa ◽  
Fresh Weight ◽  
Pollinating Insects ◽  
Insect Visitors

The pollination requirements of strawberries (Fragaria x ananassa Duchesne cv. Tioga) were examined in a planting in southern Victoria. Plots that were accessible to honeybees (Apis mellifera L.) had 20.8% marketable berries (well shaped, > 10 g fresh weight), whereas plots that were not accessible had only 4.5% marketable berries. The total numbers of fruit (marketable and unmarketable) were not affected by the presence of pollinating insects. Honeybees were considered to be the main pollinators of this crop. They comprised 58.9% of insect visitors to the flowers. The behaviour patterns of other insects were such that they would effect little or no pollination. We conclude that the presence of an adequate population of honeybees increases the proportion of well shaped (marketable) berries.

scholarly journals Physicochemical properties of seven outstanding strawberry (Fragaria x ananassa Duch.) varieties cultivated in Cundinamarca (Colombia) during maturation

2018 ◽  
Vol 19 (1) ◽  
Author(s):  
Gerhard Fischer ◽  
David López-Valencia ◽  
Manuel Sánchez-Gómez ◽  
John Fabio Acuña-Caita
Keyword(s):  
Titratable Acidity ◽  
Fruit Weight ◽  
Fragaria X Ananassa ◽  
Maturity Index ◽  
Soluble Solids ◽  
Maturity Stage ◽  
Fresh Weight ◽  
Respiration Rates ◽  
Total Titratable Acidity ◽  
Maturation State

The strawberry market in Cundinamarca (Colombia) is mainly size driven with no consideration for its maturation state and nutritional quality, wasting therefore, its organoleptic and nutritional potential. For that reason, the physicochemical differences among seven strawberry varieties (Albión, Dulce Ana, Lucía, Monterrey, Ruby June, Sabrina and Ventana) cultivated in the municipality of Sibaté (Cundinamarca) were established. Fruits collected from a productive plot with homogeneous cultivation management conditions were analyzed in six maturity states, establishing the degree of red pigmentation according to the Colombian Standard ntc 4103. Fresh weight, size, color, firmness, total soluble solids (tss), total titratable acidity (tta), maturity and respiration indices were evaluated. Fruits in stages 4, 2 and 3 developed their largest size and weight, where the variety Dulce Ana stands out. The highest color index values were found in the maturity stage 5 in the variety Ventana. Moreover, the highest firmness values were recorded in stages 4 and 5 in the varieties Monterrey and Ventana. The varieties Sabrina, Dulce Ana and Monterrey accumulated the highest tss concentration and the last two showed the best maturity relations. Respiration rates increased with maturation, especially from stage 3. The results suggest that the optimum commercialization and consumption points are stages 3 and 4, namely because these stages exhibit the highest maturity index and fruit weight. Among the varieties studied, Monterrey stands out due to its firmness and maturity index.

scholarly journals EFFECT OF DN1 BACTERIAL STRAIN APPLIED BY DIFFERENT METHODS ON SOME MORPHOLOGICAL CHARACTERISTICS OF STRAWBERRY CV. SAN ANDREAS (Fragaria X ananassa Duch.)

AGROFOR ◽  
2019 ◽  
Vol 4 (1) ◽  
Author(s):  
Murat ŞAHİN ◽  
Ahmet EŞİTKEN ◽  
Lütfi PIRLAK ◽  
Serdar ALTINTAŞ ◽  
Metin TURAN
Keyword(s):  
Bacterial Strain ◽  
Morphological Characteristics ◽  
Root Traits ◽  
Fruit Weight ◽  
Fragaria X Ananassa ◽  
Fresh Weight ◽  
Fruit Characteristics ◽  
Hand Pump ◽  
San Andreas ◽  
Positive Effect

There have been quite intensive studies on the use of Plant Growth-PromotingRhizobacteria (PGPR) in agriculture. Acidovorax facilis strain DN1 is one of thePGPR commonly used. The effect of DN1 bacterial strain on some morphologicalcharacteristics of strawberry cv. San Andreas was investigated. The DN1 bacterialstrain was applied via soil, leaf, and soil + leaf, for 3 months (once a month) tostrawberry plants. The DN1 spores were prepared with 0.2% boron, 10% cornstarch and distilled water. The bacterial solution was applied to plants at thefollowing day with a hand pump (to leaves; 50 cc) and graduated cylinder (250 cceach 5-liter pot). After 3 treatments, plants removed from pots and data collected.According to the results, DN1 bacterial strain often had a positive effect on themorphological and fruit characteristics. Spraying treatment was the most effectiveway for the stem and root traits we evaluated (crown diameter: 36.87 mm; stemfresh weight: 63.64 g; leaf number: 38.69; root fresh weight: 34.89 g). In addition,soil + leaf treatment had a positive effect on mean fruit weight (23.57 g) and fruitdiameter (27.64 mm). The effect on other properties was also positive, but the rootlength (26.34 cm) was reduced in leaf treatment compared to the control (29.69cm). It is expected that the most effective treatment is the combined (leaf + soil)treatment, while the leaf treatment may be the most effective method on soils withboron toxicity.

Honeybee pollination of buckwheat (Fagopyrum esculentum Moench) cv. Manor

2001 ◽  
Vol 41 (8) ◽  
pp. 1217 ◽  
Author(s):  
R. Goodman ◽  
G. Hepworth ◽  
P. Kaczynski ◽  
B. McKee ◽  
S. Clarke ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
Seed Production ◽  
Pieris Rapae ◽  
Fagopyrum Esculentum ◽  
Native Bees ◽  
Fagopyrum Esculentum Moench ◽  
Insect Visitors ◽  
Coccinella Transversalis

The role of honeybees (Apis mellifera) in the pollination of buckwheat cv. Manor was studied in a commercial planting at Smeaton, Victoria. Honeybees comprised 80% of all insect visitors to this crop. Other insects included ladybirds (Coccinella transversalis and C. undecimpunctata), hoverflies (Meangyna viridiceps), drone flies (Eristalis sp.), blowflies (Calliphoridae), cabbage white butterflies (Pieris rapae), small bush flies and native bees. The activity of honeybees and other insects increased seed production from 91.5 g/plot (plots closed to insects) to 180.4 g/plot (plots open to insects).

Honeybee pollination of loganberries (Rubus loganobaccus L.H. Bailey)

1985 ◽  
Vol 25 (1) ◽  
pp. 224
Author(s):  
DF Langridge ◽  
RD Goodman
Keyword(s):  
Apis Mellifera ◽  
Airborne Pollen ◽  
Insect Visitors

The role of honeybees (Apis mellifera) in the pollination of loganberries was studied in an experimental planting at Knoxfield, Victoria. When plants were enclosed in cages to exclude bees and larger insects, there was no difference in the total numbers and weight of fruit harvested. Quality rather than quantity of fruit benefited from honeybee activity. The number of reject fruit on enclosed plants was 49.9% of the total as compared with 7.8% on open plants, corresponding respectively to 35 5% and 3- 3% by weight. The farm gate value of fruit harvested per plant was $A2.39 on open plants and $A1.28 on enclosed plants. After deducting cost of hiring bees this was computed to nett an extra return to the grower of $A1876 per hectare. Honeybees comprised 98.6% of all insect visitors to the flowers. Concentrations of airborne pollen 'were greater inside the cages than outside.

scholarly journals HONEY BEE CONTRIBUTION TO ‘BORDÔ’ GRAPEVINE FRUIT PRODUCTION IN SOUTHERN BRAZIL

2017 ◽  
Vol 39 (3) ◽  
Author(s):  
MIRELI MARTIGNAGO ◽  
RAFAEL MARTINS ◽  
BIRGIT HARTER-MARQUES
Keyword(s):  
Apis Mellifera ◽  
Fruit Production ◽  
Quality Parameters ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Yield And Quality ◽  
Pollinating Insects ◽  
Important Quality ◽  
Commercially Important

ABSTRACT The production of fruits and seeds of many crops is increased when bees visit their flowers pollinating them. The aim of this study was to evaluate the effect of different pollination treatments on ‘Bordô’ grapevine (Vitis labrusca L.) fruit quantity and quality. Quantitative and qualitative fruit production parameters of plants visited by Apis mellifera L., manually self- and cross-pollinated plants and plants without pollination were analyzed and compared. Fruit production was high for all treatments and all fruits presented four seeds per fruit, on average, confirming that this grape cultivar is autogamous. However, fruit set after spontaneous self-pollination was statistically lower than that of all other treatments, and pollination by A. mellifera showed the highest fruit production. Furthermore, pollination by honey bees resulted in increased biomass, reflected on fruit weight, but the content of soluble solids remained unchanged. The results of this study showed that there is no need of pollinators for fruit production of ‘Bordô’ cv., but the presence of these agents, in particular Apis mellifera, influences commercially important quality parameters such as fruit yield and fresh weight. Therefore, the use of bee hives in areas with deficit of pollinating insects may promote an improvement in yield and quality of this cultivar.

scholarly journals Relationships between bees (Hymenoptera: Apoidea: Apiformes) and flowers in the Bulgarian agricultural landscape

2015 ◽  
Vol 84 (2) ◽  
pp. 101-126 ◽  
Author(s):  
Józef Banaszak ◽  
Piotr Szefer ◽  
Bojana Dochkova
Keyword(s):  
Apis Mellifera ◽  
Species Composition ◽  
Agricultural Landscape ◽  
Niche Overlap ◽  
Agricultural Landscapes ◽  
Food Plants ◽  
Individual Plant ◽  
Habitat Types ◽  
Factors Influencing ◽  
Pollinating Insects

Abstract The species composition and number of visitations of food plants by bees were studied in refuge sites in agricultural landscapes and in selected crops. The habitat fragments of interest are characterised in terms of pollinator diversity at genus level and the use of food plants by individual genera. Trophic and temporal niche overlap is described for individual genera and the honey bee Apis mellifera in different habitat types. Factors influencing the manner of use of individual plant species by pollinating insects are identified

Honeybee pollination of Japanese plums (Prunus salicina Lindl. cv. Satsuma) in the Goulburn Valley, Victoria

1985 ◽  
Vol 25 (1) ◽  
pp. 227 ◽  
Author(s):  
DF Langridge ◽  
RD Goodman
Keyword(s):  
Apis Mellifera ◽  
Wind Pollination ◽  
Native Bees ◽  
Prunus Salicina ◽  
Valley Area ◽  
Insect Visitors

The pollination requirements of Japanese plums (Prunus salicina Lindl. cv. Satsuma) were examined in an orchard in the Goulburn Valley area of Victoria. Trees which were accessible to honeybees (Apis mellifera) had a higher percentage pollination rate (3.2 times) greater weight of fruit (2.6 times) and more fruit (3.3 times) than did the trees that were enclosed to exclude bees and large insects. Honeybees comprised 88.5% of all insect visitors to the flowers. The behaviour patterns of other insects were such that they would effect little or no pollination. Pollen gathering bees are considered the main pollinators of this species because of their activity early in flowering. No native bees (Trigona spp.) were seen to visit the flowers. While parthenocarpy and wind pollination may produce some fruit on Satsuma, the presence of an adequate population of honeybees is necessary to set a satisfactory crop.

scholarly journals Consequences of a short time exposure to a sublethal dose of Flupyradifurone (Sivanto) pesticide early in life on survival and immunity in the honeybee (Apis mellifera)

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Yahya Al Naggar ◽  
Boris Baer
Keyword(s):  
Apis Mellifera ◽  
Early Adulthood ◽  
Sublethal Dose ◽  
Short Exposure ◽  
Long Term Effects ◽  
Pesticide Exposures ◽  
Bee Health ◽  
Pollinating Insects ◽  
Series Of Experiments ◽  
Short Time

AbstractDramatic losses of pollinating insects have become of global concern, as they threaten not only key ecosystem services but also human food production. Recent research provided evidence that interactions between ecological stressors are drivers of declining pollinator health and responsible for observed population collapses. We used the honeybee Apis mellifera and conducted a series of experiments to test for long-term effects of a single short exposure to the agricultural pesticide flupyradifurone to a second environmental stressor later in life. To do this, we exposed individuals during their larval development or early adulthood to sublethal dosages of flupyradifurone (0.025 μg for larvae and 0.645 μg for imagos), either pure or as part of an agricultural formulation (Sivanto). We afterwards exposed bees to a second ecological stressor infecting individuals with 10,000 spores of the fungal gut parasite Nosema ceranae. We found that pesticide exposures significantly reduced survival of bees and altered the expression of several immune and detoxification genes. The ability of bees to respond to these latter effects differed significantly between colonies, offering opportunities to breed bees with elevated levels of pesticide tolerance in the future. We conclude that short episodes of sublethal pesticide exposures during development are sufficient to trigger effects later in life and could therefore contribute to the widespread declines in bee health.

scholarly journals Characteristics of blooming, pollen production, and insect visitors of Polemonium caeruleum L. – a species with a potential to enrich pollinator-friendly urban habitats

2019 ◽  
Vol 72 (4) ◽  
Author(s):  
Małgorzata Bożek
Keyword(s):  
Honey Bees ◽  
Ornamental Plants ◽  
White Flower ◽  
Blue Flower ◽  
Pollen Production ◽  
Average Mass ◽  
Se Poland ◽  
Pollinating Insects ◽  
Flower Form ◽  
Insect Visitors

Mosaic structure of urban green areas is regarded as favorable for pollinating insects. Ornamental plants can provide food resources to pollinators and may thus be used to create pollinator-friendly habitats. However, detailed data on forage quantity and quality is required for the selection of the most valuable plant species. In this paper, blooming biology, pollen production, and insect visitors of two forms (blue-flower and white-flower) of <em>Polemonium caeruleum</em> were studied in the period of 2012–2014 in Lublin, SE Poland. Both forms bloomed from mid-May until mid-June. The average mass of pollen produced in a single flower was 1.57 mg and 1.39 mg in blue-flower and white-flower forms, respectively. On average, the blue-flower form produced 7.74 g of pollen/m<sup>2</sup>, while the white-flower form yielded 6.54 g of pollen/m<sup>2</sup>. Both forms attracted mainly honey bees and solitary bees. <em>Polemonium caeruleum</em> can be considered a good source of pollen for honey bees and wild insect pollinators and should be propagated in urban pollinator-friendly arrangements.

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