Análise do pólen em dezoito cultivares de macieira

Dall’Orto, Fernando Antônio Campo; Barbosa, Wilson; Ojima, Mário; Campos, Sônia Aparecida Ferraz de

doi:10.1590/s0006-87051985000100038

Cited by 6 publications

(2 citation statements)

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“…These values are clearly lower than in other fruit plants, mainly in allogamous species. Dall'Orto et al (1985) observed an average of 2700 pollen grains per anther in 18 apple cultivars.…”

Section: Resultsmentioning

confidence: 95%

Germplasm characterization of three jabuticaba tree species

et al. 2011

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-The purpose of this study was to characterize cultivated genotypes of three jabuticaba species (Plinia cauliflora, P. trunciflora, and P. jaboticaba). Phenology and fruit growth, as well as leaf, flower and fruit traits were evaluated. Variability in all traits was observed among genotypes of the three jabuticaba species. The trait peduncle size is indicated for differentiation of the three species under study. The leaf and fruit sizes of the genotypes P. trunciflora 3, P. trunciflora 4, P. trunciflora 5 and P. jaboticaba 1 differ from those described in the literature for these species, indicating the formation of ecotypes. Jabuticaba fruit skin contains high anthocyanin and flavonoid concentrations, with potential use in food and pharmaceutical industries.

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“…These values are clearly lower than in other fruit plants, mainly in allogamous species. Dall'Orto et al (1985) observed an average of 2700 pollen grains per anther in 18 apple cultivars.…”

Section: Resultsmentioning

confidence: 95%

Germplasm characterization of three jabuticaba tree species

et al. 2011

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“…The hierarchical cluster based on pollen quantity and germination rate showed that 65 litchi cultivars could be classified into six clusters, and 41.54% of litchi cultivars ranged between 3830 and 4730 pollen grains per anther. The number of pollen grains per anther ranged between 1170 and 3800 in 18 apple cultivars grown under subtropical conditions in São Paulo, Brazil, and the pollen grains per flower ranged between 23,000 and 74,000 (Campo Dall'Orto et al, 1985). On an average, Brazilian apple cultivars, such as Baronesa, Suprema, Imperatriz, Lisgala, Joaquina, Princesa, Fred Hough, Daiane, Catarina, Primícia, Duquesa and Condessa produce 16-20 anthers, and a variable number of pollen grains per flower ranging between 53,000 and 103,700 were found.…”

Section: Discussionmentioning

confidence: 99%

Pollen Quantity and Viability in 65 Litchi (Litchi chinensis Sonn.) Cultivars

Wu¹,

Fu²,

Chen³

et al. 2017

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The characteristics of litchi pollen have drawn increasing attention in recent years. Previous studies indicated that there are significant differences in the quantity and viability of litchi pollen grains among different varieties and flowering stages. Moreover, the same variety may show a different quantity of pollen grains and viability in different years. There is still a lack of systematic studies on the change of pollen germination rate and pollen amount in different varieties and at different flowering stages. In this study, the changes in the germination rate of pollen at different development stages were studied. It was primarily revealed that the pollen germination rate already approached its peak upon the filament extends fully, but the anther does not dehisce the developmental stage. In 2009 and 2010, the viability and number of pollen grains per anther were investigated in 65 litchi cultivars, and a difference was observed among cultivars. The pollen germination rate ranged between 20.14% (‘Wuchali’) and 54.69% (‘Donlongmili’). The number of pollen grains per anther ranged between 1555 (‘Zhongshanzhuangyuanhong’) and 7455 (‘Houye’). Sixty-five litchi cultivars were classified into six clusters based on the pollen quantity and germination rate. Most litchi cultivars can produce large amounts of viable and compatible pollen grains during the flowering period. Thus, our results indicate that the pollen amount and germination rate might not be the only factors restricting the successful pollination of litchi.

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