Pollination and fruit set in pumpkin (Cucurbita pepo) by honey bees

Vidal, Maria das Graças; Jong, David De; Wien, H.C.; Morse, Roger A.

doi:10.1590/s0100-84042010000100010

Cited by 43 publications

(41 citation statements)

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“…In an assessment of the importance of bees for Aodai cucumber production, Nogueira- Couto and Calmona (1993) concluded that honey bees facilitate cucumber fruit set due to their visits to the flowers, thus promoting pollination. Africanized bees can efficiently pollinate several species of the genus Cucurbita (FREE, 1993;NICODEMO et al, 2009, VIDAL et al, 2010.…”

Section: Resultsmentioning

confidence: 99%

Enhanced production of parthenocarpic cucumbers pollinated with stingless bees and Africanized honey bees in greenhouses

et al. 2013

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Crops have different levels of dependence on pollinators; this holds true even for cultivars of the same species, as in the case of cucumber (Cucumis sativus). The aim of this research was to assess the attractiveness of flowers of three Japanese parthenocarpic cucumber cultivars and evaluate the importance of Africanized bees (Apis mellifera), and the Brazilian native stingless bees, Jataí (Tetragonisca angustula) and Iraí (Nannotrigona testaceicornis) on fruit production. Several parameters, including frequency of bee visits to flowers as well as duration of nectar collection and fruit set were examined; additionally, fruit weight, length and diameter were evaluated. Three greenhouses located in Ribeirão Preto, SP, were used for planting three cucumber cultivars (Hokushin, Yoshinari and Soudai). The female flowers were more attractive than male flowers; however, Jataí bees were not observed visiting the flowers. The Africanized and the Iraí bees collected only nectar, with a visitation peak between 10 and 12h. Visits to female flowers had a longer duration than visits to male flower visits in all three cultivars. Africanized bee colonies declined due to loss of bees while in the greenhouse; the native stingless bee colonies did not suffer these losses. When bees were excluded, fruit set was 78%; however, when bees had access to the flowers, fruit set was significantly (19.2%) higher. Fruit size and weight did not differ with and without bees. This demonstrates that even in parthenocarpic cucumber cultivars, which do not require pollination in order to from fruits, fruit production is significantly increased by bee pollination. Key words: Apis mellifera, Nannotrigona testaceicornis, Tetragonisca angustula, fruit set, parthenocarpic cucumber ResumoAs culturas agrícolas apresentam diferentes níveis de dependência por polinizadores e essa expressão variada ocorre inclusive entre cultivares de uma espécie, como no caso das plantas de pepino (Cucumis sativus). O objetivo desse trabalho foi avaliar a atratividade das flores de pepino Japonês de três cultivares e a importância das abelhas Africanizadas (Apis mellifera), as abelhas brasileiras sem ferrão, Jataí (Tetragonisca angustula) e Iraí (Nannotrigona testaceicornis), na produção de frutos . analisados vários parâmetros como a frequência de visitas de abelhas às flores, o tempo de visita utilizado para a coleta de néctar e a taxa de frutificação, considerando-se o peso, o comprimento e diâmetro dos pepinos obtidos. Foram utilizadas três casas de vegetação em Ribeirão Preto, SP, para o cultivo de três cultivares de pepino (Hokushin, Yoshinari e Soudai). Verificou-se que as flores femininas são mais atrativas que as masculinas e que as abelhas Jataí não visitaram as flores. As abelhas Africanizadas e Iraí coletaram apenas néctar, com pico de visitação entre 10h e 12h. Visita às flores femininas tiveram uma maior duração do que as visitas às flores masculinas nas três cultivares. As abelhas Africanizadas tiveram suas colônias diminuídas devido à perda de abel...

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Section: Resultsmentioning

confidence: 99%

Enhanced production of parthenocarpic cucumbers pollinated with stingless bees and Africanized honey bees in greenhouses

et al. 2013

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“…Baik bunga jantan maupun betina memiliki masa anthesis yang berlangsung selama satu hari (Loy 2004). Jumlah biji yang dihasilkan dari proses penyerbukan pada Cucurbit sangat ditentukan oleh jumlah serbuk sari yang diterima oleh putik (pollen limited) sehingga hubungan antara deposit serbuk sari oleh polinator spesifik dan kesuksesan penyerbukan dapat diukur secara langsung (Walters & Taylor 2006). Baik bunga jantan maupun betina, pada Cucurbit mulai mekar sekitar pukul 05:00-06:00.…”

Section: Pendahuluanunclassified

Pola kunjungan serangga liar dan efek penambahan koloni Trigona (Tetragonula) laeviceps Smith pada penyerbukan kabocha (Cucurbita maxima)

et al. 2017

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ABSTRAKSerangga penyerbuk liar maupun terdomestikasi memainkan peran penting dalam proses penyerbukan pada berbagai tanaman bernilai ekonomi terutama tanaman monoceious seperti dari kelompok Cucurbitaceae. Tujuan dari penelitian ini adalah mendapatkan informasi mengenai peran dari serangga penyerbuk liar dan aplikasi koloni Trigona (Tetragonula) laeviceps Smith terhadap produksi dan kualitas buah kabocha (Cucurbita maxima) sebagai model tanaman pada lahan pertanian tradisional. Pengamatan dilakukan pada pukul 07:00-15:00 selama periode pebungaan dalam kurun waktu tiga minggu. Pengamatan dilakukan pada tiga plot perlakuan: open pollination + T. laeviceps (OPT), open pollination (OP), dan hand pollination (HP). Efek dari polinator ditinjau melalui tiga parameter, yaitu pola kunjungan, plant reproductive success, dan kualitas buah. Pola kunjungan diukur berdasarkan frekuensi dan lama kunjungan serangga, plant reproductive success diukur dari fruit set dan jumlah biji, sedangkan kualitas buah diukur berdasarkan diameter dan berat buah serta produksi buah/tanaman. Hasil penelitian menunjukkan mayoritas polinator liar aktif pada pagi hari, sedangkan T. laeviceps lebih aktif mulai siang yang diduga disebabkan oleh pengaruh variasi toleransi terhadap suhu pada tiap spesies. Terdapat perbedaan signifikan pada fruit set antara perlakuan OPT (80%), OP (65%), dan HP (38,3%) (F 2,35 = 19,907, P = 0,000). Jumlah biji dan kualitas buah yang dihasilkan pada perlakuan OPT dan OP lebih tinggi dibandingkan dengan perlakuan HP, sedangkan jumlah buah pada OPT jauh lebih tinggi dibandingkan dengan lainnya. Rendahnya kesuksesan penyerbukan pada plot HP menunjukkan ketepatan waktu penting bagi penyerbukan kabocha. Berdasarkan hasil ini maka penyerbukan oleh lebah pada tanaman kabocha sulit digantikan oleh manusia dan variasi kunjungan yang dimiliki oleh T. laeviceps berdampak positif pada produksi buah kabocha.Kata kunci: kesuksesan reproduksi, produksi buah, serangga penyerbuk, tanaman produksi ABSTRACTInsects hold important role in pollination of many crops. However, studies on pollination in Indonesia could be considered rare. This study focussed on obtaining the basic information of wild pollinators and the effect Trigona (Tetragonula) laeviceps Smith innundation release to the

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“…Vidal et al (2010) studying the pollination and set fruit in Cucurbita pepo by honyebees reported that percentage of set fruit was maximum (100%) www.intechopen.com when the flowers received 12 visits of A. mellifera, corresponding to load of 1.253 pollen grains deposited on the stigma. In comparision, with two visits of honeybees, 174 pollen grains were deposited on the stigma, and the set fruit only of 50%.…”

Section: Pollination and Plant Reproductionmentioning

confidence: 99%

“…In comparision, with two visits of honeybees, 174 pollen grains were deposited on the stigma, and the set fruit only of 50%. Other important factor is the attraction by pollen and nectar of male flower was arised by opening grade of nectary pore of flower (Vidal et al, 2010).…”

Section: Pollination and Plant Reproductionmentioning

confidence: 99%

Spectrophotometry as a Tool for Dosage Sugars in Nectar of Crops Pollinated by Honeybees

Toledo¹,

Rúvolo-Takasusuki²,

Oliveira³

et al. 2012

Macro to Nano Spectroscopy

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Pollination and fruit set in pumpkin (Cucurbita pepo) by honey bees

Cited by 43 publications

References 16 publications

Enhanced production of parthenocarpic cucumbers pollinated with stingless bees and Africanized honey bees in greenhouses

Enhanced production of parthenocarpic cucumbers pollinated with stingless bees and Africanized honey bees in greenhouses

Pola kunjungan serangga liar dan efek penambahan koloni Trigona (Tetragonula) laeviceps Smith pada penyerbukan kabocha (Cucurbita maxima)

Spectrophotometry as a Tool for Dosage Sugars in Nectar of Crops Pollinated by Honeybees

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