Atividade de alguns insetos em flores de Brassica napus L. em Dourados-MS e a interação com fatores climáticos

Mussury, Rosilda Mara; Fernandes, Wedson Desidério; Scalon, Silvana de Paula Quintão

doi:10.1590/s1413-70542003000200018

Cited by 7 publications

(12 citation statements)

References 6 publications

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“…Insects therefore have important roles in the reproduction of C. abyssinica and can maximize productivity by increasing fruit and seed production and improving their quality -a situation that has been observed in other economically valuable cultures such as Brassica napus L. (Mussury and Fernandes 2000, Mussury et al 2003, Jauker and Wolters 2008 and Raphanus sativus L. (Teixeira and Zampierom 2007).…”

Section: Resultsmentioning

confidence: 97%

“…Rosa et al (2011) likewise concluded that these same bees were the most frequent pollinators of rapeseed, and recommended introducing colonies of these insects to increase seed production. In their study of B. napus, Mussury et al (2003) pollinators was between 09:00 and 15:00. Williams (1985) observed that most bee activity on B. napus occurred between 06:30 and 15:00, with most of the pollen being collected between 08:00 and 10:00 -probably because of the more favorable temperature and relative humidity at that time of day.…”

Section: Resultsmentioning

confidence: 99%

“…A number of studies have surveyed the pollinators of Brassicaceae, including those of rapeseed Brassica napus L. (Willians 1985, Mussury et al 2003, Jauker and Wolters 2008 and the radish Raphanus sativus L. (Teixeira and Zampierom 2007), however studies of crambe were not encountered in the examined literature.…”

Section: Introductionmentioning

confidence: 99%

“…These factors may be internal, such as colony size and the necessity for natural resources, or external, such as the temperature and relative humidity (Teixeira and Campos 2005). A number of studies have reported correlations between climatic factors and bee activity as evaluated by the number of bees leaving the hive (Balestieri and Machado 1998, Hilário et al 2000, 2001, 2007a, b, Contrera et al 2004, or the numbers of bees visiting focal flowers (Williams 1985, Mussury et al 2003.…”

Section: Introductionmentioning

confidence: 99%

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Plant-pollinator interactions in Crambe abyssinicaHochst. (Brassicaceae) associated with environmental variables

Simioni

Mussury

Mauad

et al. 2015

An. Acad. Bras. Ciênc.

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Despite the economic importance of Crambe abyssinica, the present study is the first report on bees that occur with this species, and could aid in developing alternative methods for controlling insect pests without seriously impacting pollinators. The present study examined the following questions: (1) Which species are potential pollinators of C. abyssinica? (2) How do environmental conditions influence pollinator visitation fluctuations? Insects were sampled on a weekly basis between 08:00 and 16:00 during five weeks of flowering. When the results of analyses of variance were significant, the data was adjusted using regression equations at a 5% level of probability; the environmental variables were examined using Pearson's correlation coefficient. Apis mellifera, Geotrigona mombuca, Exomalopsis (Exomalopsis) fulvofasciata, Plebeia sp. and Dialictus sp. were observed visiting C. abyssinica flowers. A. mellifera and G. mombuca were observed to be potential pollinators, with the former demonstrating visitation peaks during flowering weeks II and IV at 12:00 and 08:00, respectively and the latter visiting during weeks III and IV at 12:00 and 10:00, respectively. Environmental factors such as temperature, relative humidity, and wind speed have different effect on the activity of bees.

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Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Plant-pollinator interactions in Crambe abyssinicaHochst. (Brassicaceae) associated with environmental variables

Simioni

Mussury

Mauad

et al. 2015

An. Acad. Bras. Ciênc.

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show abstract

“…Neste caso, a diversifi cação teria o potencial de oferecer locais para nidifi cação ou áreas de refúgio, sem prejudicar a interação predador-presa. Alternativamente, o aumento na taxa de predação pode estar relacionado com (1) a atração de vespas em busca de presas alternativas (Reis & Souza 1983) e/ou (2) o acesso a recursos como pólen e néctar, observado em indivíduos da família Vespidae (Maingay et al 1991, Giannotti et al 1995, Mussury et al 2003.…”

Section: Discussionunclassified

A diversificação da vegetação reduz o ataque do bicho-mineiro-do-cafeeiro Leucoptera coffeella (Guérin-mèneville) (Lepidoptera: Lyonetiidae)?

Amaral¹,

Venzon²,

Pallini³

et al. 2010

Neotrop. entomol.

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-The effects of increasing plant diversity on the population of the coffee leaf-miner Leucoptera coffeella (Guérin-Mèneville) were investigated in two organic coffee production systems. One system consisted of coffee intercropped with banana trees (shaded system) and the other one of coffee intercropped with pigeon pea (unshaded system). The increase in plant diversity on both systems was achieved via introduction of green manures such a perennial pea nut, sunn hemp and Brazilian lucerne. The population of L. coffeella, predation and parasitism of L. coffeella mines were biweekly evaluated during eight months. The increase in plant diversity on both systems did not affect the attack of L. coffeella on coffee leaves and the mine parasitism rate. However, there was a positive and signifi cant relationship between increasing plant diversity and coffee leaf mine predation by wasps on unshaded coffee system and a negative relationship on shaded coffee system.

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Seminatural habitats and their proximity to the crop enhances canola (Brassica napus) pollination and reproductive parameters in Argentina

2021

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The diversity and abundance of pollinators increase in cultivated areas in proximity to natural and seminatural habitats (pastures, forests, tree lines, etc.). Managing ecosystem services, such as insect pollination, is essential to increase crop yields.Although insect pollination is linked to better yields in many crops, pollinators are usually not considered as an input to be managed in crop production. In this study, we evaluate, for the first time, the influence of pollinators on the reproductive parameters of three canola (Brassica napus L.) stands placed at different distances from seminatural habitats in central Argentina. Insect visits to inflorescences with exposed and nonexposed flowers (covered with voile bags) were compared in plants growing in proximity (<50 m) and distant from (>50 m) seminatural habitats. Observations of flower visitations by the insects were recorded during the flowering period. The most frequent pollinator was Apis mellifera, although 12 additional pollinator morphospecies were registered. Seven of them were observed in canola flowers for the first time. Pollinators increased the amount of pollen deposited on stigmas and all measured reproductive parameters (fruit set, seeds per pod, seed mass). Seed production per infructescence increased with proximity to seminatural habitats and with pollinators by 34 and 35%, respectively. Therefore, the pollination ecosystem service is a relevant input for canola production in central Argentina. It will be important to develop policies that encourage diversified farming systems securing the protection of natural flora and pollinators.

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Atividade de alguns insetos em flores de Brassica napus L. em Dourados-MS e a interação com fatores climáticos

Cited by 7 publications

References 6 publications

Plant-pollinator interactions in Crambe abyssinicaHochst. (Brassicaceae) associated with environmental variables

Plant-pollinator interactions in Crambe abyssinicaHochst. (Brassicaceae) associated with environmental variables

A diversificação da vegetação reduz o ataque do bicho-mineiro-do-cafeeiro Leucoptera coffeella (Guérin-mèneville) (Lepidoptera: Lyonetiidae)?

Seminatural habitats and their proximity to the crop enhances canola (Brassica napus) pollination and reproductive parameters in Argentina

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