Efficacité pollinisatrice de &lt;i&gt;Apis mellifera&lt;/i&gt; Linné (Hymenoptera: Apidae) sur les fleurs de &lt;i&gt;Gossypium hirsutum&lt;/i&gt; (Malvaceae) à Djamboutou (Garoua, Cameroun)

Basga, Emmanuel; Tope, Sidonie Fameni; Atibita, Esther Nadine Otiobo; Fohouo, Fernand-Nestor Tchuenguem

doi:10.4314/jab.v138i1.11

Cited by 7 publications

(22 citation statements)

References 10 publications

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“…The most important crop pollinator species is the western honeybee (Apis mellifera L.), providing roughly 50% of global crop pollination [4]. Worldwide, Honeybees are among the major pollinators of the world's cultivated food and cash crops, such as G. hirsutum (Malvaceae) [5,6].…”

Section: Introductionmentioning

confidence: 99%

“…Cotton leaves are trilobed and flowers are cream and produce approximately 20,000 cream pollen grains per flower and produce low volume of nectar [8,9,10]. Considered as a major bee plant species [6], cotton is primarily self-pollinating, although out-crossing can occur [11]. Before our work, the flowering insects of G. hirsutum were studied in Cameroon [12,5,6] and in Australia [13,14] where A. mellifera was the most frequent visitor on G. hirsutum flowers.…”

Section: Introductionmentioning

confidence: 99%

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Impact of the foraging activity of Apis mellifera (Hymenoptera: Apidae) on increasing yields of Gossypium hirsutum (Malvaceae) in Djoumassi (Garoua, Cameroon)

Sanda¹,

Tekombo²,

Adamou³

et al. 2020

GSC Biol. and Pharm. Sci.

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To evaluate the impact of the foraging behaviour of Apis mellifera in increasing boll and seed yields of Gossypium hirsutum, its pollination activities were studied in Garoua for two seasons, from September through October 2018 and 2019. Observations were made on 540 flowers divided into four treatments of which two were differentiated according to the presence or absence of flower protection regarding insect visits; the third was made of protected and opened flowers, to allow Apis mellifera visits and the fourth made of opened flowers then closed without any visit. The bee's daily rhythm of activity, their foraging and pollination activities were evaluated. Results showed that, on Gossypium hirsutum flowers, Apis mellifera intensely collected pollen and nectar. Data obtained allow the classification of this Malvaceae as a highly polliniferous and nectariferous bee plant species. Through its pollination efficiency, Apis mellifera has increased the fruiting rate by 29.66% and 13.95%, the mean number of seeds per boll by 24.53% and 14.89% and the percentage of normal seeds by 3.89% and 8.87% in 2018 and 2019 respectively. Hence, the conservation of Apis mellifera colonies close to Gossypium hirsutum fields is recommended to improve its boll and seed yields.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Impact of the foraging activity of Apis mellifera (Hymenoptera: Apidae) on increasing yields of Gossypium hirsutum (Malvaceae) in Djoumassi (Garoua, Cameroon)

Sanda¹,

Tekombo²,

Adamou³

et al. 2020

GSC Biol. and Pharm. Sci.

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show abstract

“…To our knowledge, the data published after detailed studies on the interactions between insects and G. hirsutum are those from Sudan [10], Russia [11], Australia [12,13,14], USA [11,15,16,17] and Cameroon [18,3,19,20].…”

Section: Introductionmentioning

confidence: 99%

“…Currently, the processing of seed cotton produces around 15 million litres of cottonseed oil per year for an estimated population of 25 million inhabitants [23]. Cotton yields can be increase in this country if its flowering insects are well known and exploited [20]. Therefore, it is important to investigate on the possibilities of increasing the production of this valuable plant in the country.…”

Section: Introductionmentioning

confidence: 99%

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Pollination Efficiency of Amegilla calens (Hymenoptera: Apidae) on Gossypium hirsutum L. (Malvaceae) Variety L457 Flowers at Meskine (Maroua, Cameroon)

issaya¹,

KENGNI²,

FAMENI³

et al. 2020

Preprint

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This study was carried out to evaluate the impact of Amegilla calens bee on fruit and seed yields of G. hirsutum in an experimental field, in September 2018 and 2019. The experiments were carried out on 540 flowers divided in four treatments: 120 flowers accessible to all visitors; 120 flowers bagged to avoid all visits; 200 flowers protected and uncovered when they were opened, to allow A. calens visits; 100 flowers bagged then uncovered and rebagged without the visit of insects or any other organism. Bee’s daily rhythm of activity, its foraging behaviour on flowers, its pollination efficiency, the fruiting rate, the number of seeds per fruit and the percentage of normal seeds were evaluated. Among the 20 insect species recorded on G. hirsutum flowers, A. calens was the most frequent insect with 30.72 % of 655 visits. On flowers, individual bee intensely collected pollen and slightly harvested nectar. The mean duration of a visit per flower was 23.56 sec for pollen harvest and 13.68 sec for nectar collection. For the two years, through its pollination efficiency, A. calens increased the fruiting rate by 20.30 %, as well as the percentage of normal seeds by 32.39 %.

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Contribution of a single flower visit of Xylocopa olivacea (Hymenoptera: Apidae) on fruit and seed production of Roselle (Hibiscus sabdariffa L.) (Malvaceae) at Meskine (Maroua, Cameroon)

Yougouda,

Topé,

Kengni

et al. 2023

Preprint

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There a wide diversity of values linked to insect pollinators and pollination beyond agriculture and food production. To evaluate the impact of a single flower visit of Xylocopa olivacea on fruit and seed yields of Hibiscus sabdariffa, its foraging and pollinating activities were studied at Meskine (Maroua, Cameroon), in June 2018 and 2019. The experiments were carried out on 540 flowers divided into four treatments: protected flowers, bagged flowers, flowers protected and then exclusively exposed to X. olivacea and unbagged flowers, then reprotected without any visit of insect or some other life form visit to exclude the effect of hands manipulation. The bee’s daily rhythm of activity, its foraging behaviour and its pollination efficiency were evaluated. X. olivacea foraged on H. sabdariffa flowers throughout the plant’s blooming period. Among the 22 insect species recorded on H. sabdariffa flowers, X. olivacea was the most frequent insect with 40.89% of the 1670 recorded visits, and it intensely collected nectar and pollen. The fruiting rate of unprotected flowers was significantly higher than that of protected flowers (χ2 = 20.98; df = 3; P < 0.001). Through its pollination efficiency, X. olivacea provoked a significant increase in the fruiting rate by 49.98%, the number of seeds per fruit by 5.40%, and the percentage of mature seeds by 13.99%. Therefore, conservation of X. olivacea nests close to H. sabdariffa fields is recommended to improve fruit and seed production in this region.

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Efficacité pollinisatrice de <i>Apis mellifera</i> Linné (Hymenoptera: Apidae) sur les fleurs de <i>Gossypium hirsutum</i> (Malvaceae) à Djamboutou (Garoua, Cameroun)

Cited by 7 publications

References 10 publications

Impact of the foraging activity of Apis mellifera (Hymenoptera: Apidae) on increasing yields of Gossypium hirsutum (Malvaceae) in Djoumassi (Garoua, Cameroon)

Impact of the foraging activity of Apis mellifera (Hymenoptera: Apidae) on increasing yields of Gossypium hirsutum (Malvaceae) in Djoumassi (Garoua, Cameroon)

Pollination Efficiency of Amegilla calens (Hymenoptera: Apidae) on Gossypium hirsutum L. (Malvaceae) Variety L457 Flowers at Meskine (Maroua, Cameroon)

Contribution of a single flower visit of Xylocopa olivacea (Hymenoptera: Apidae) on fruit and seed production of Roselle (Hibiscus sabdariffa L.) (Malvaceae) at Meskine (Maroua, Cameroon)

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