Eficiencia reproductiva y producción de polen en Nothofagus alpina en un huerto semillero clonal

Cruzatty, Luz García; Rivero, Magaly; Vásconez, Gregorio; Peñarrieta, Soraya; Droppelmann, Fernando

doi:10.4067/s0717-92002017000100014

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…Higher amounts of pollen produced per flower were reported for Malva higher (Malvaceae; 6,586 pollen grains) (Hidalgo et al, 1996). The variation in pollen production per flower have been reported in different plant species (Fernández et al, 2008), even in species belonging to the same family, where extreme changes can affect male reproduction variables (García-Cruzatty et al, 2017). In fact, while the amount of pollen produced in flowers is a genetically determined characteristic (Antoń & Denisow, 2018;Denisow et al, 2018), it has been frequently documented that this characteristic can vary significantly between species and between cultivars or varieties (Antoń & Denisow, 2018).…”

Section: Discussionmentioning

confidence: 90%

Pollen Production in Theobroma cacao L. Genotypes National Type and CCN-51 and Its Relationship with Climatic Factors on the Ecuadorian Coast

Cruzatty¹,

Vera-Pinargote²,

Gavilanes³

et al. 2020

Acta Agrobot

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Cocoa is a primary source of economic income in the agricultural and agroindustrial sectors of Ecuador. However, cocoa crops are vulnerable to meteorological conditions that affect reproduction processes, including pollen production, which has encouraged the study of factors related to low crop yields and practical implications in breeding programs. The objective of this study was to assess the pollen production per flower in 11 genotypes of Theobroma cacao national type and CCN-51 clone. The number of pollen grains per flower was estimated by collecting 10 flower buds from each genotype for 12 consecutive months and directly counting pollen grains using an optical microscope and a Neubauer chamber. An average of 32,611 pollen grains per flower was estimated, with the largest amount of pollen (44,000) produced by the CCN-51 genotype. There was a moderate positive correlation between the environmental variables and pollen production (temperature, r = 0.33; p = 0.028; precipitation, r = 0.43; p = 0.0025). Since pollen production is an important indicator used for the selection of promising genotypes, the genotypes identified with the highest pollen production should be used in breeding programs.

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Section: Discussionmentioning

confidence: 90%

Pollen Production in Theobroma cacao L. Genotypes National Type and CCN-51 and Its Relationship with Climatic Factors on the Ecuadorian Coast

Cruzatty¹,

Vera-Pinargote²,

Gavilanes³

et al. 2020

Acta Agrobot

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“…Even self-pollinated species benefit from animal visitation due to its favourable effect on genetic interchange (Potts et al 2010). The amount of pollen transported and the distance to which it is deposited are critical factors affecting the reproductive success of plants due to their role in connecting plant populations, reducing endogamy, and, therefore, inbreeding depression (Allison, 1990, García Cruzatty et al 2017, Young et al 1996). Pollen movement becomes a particularly relevant process in anthropized landscapes where the sizes of plant populations decrease, and isolation increases due to habitat fragmentation (Breed et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Pollen movement of the endemic Agave cupreata by bats and birds in western Mexico

Arreola-Gómez,

Mendoza

2024

J. Trop. Ecol.

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We quantified the amount of pollen carried by bats and birds visiting the flowers of cultivated and wild individuals of the endemic Agave cupreata in western Mexico and estimated the distance to which pollen was moved using diurnal/nocturnal inflorescence exclusions and fluorescent powders. There were no differences in the amount of pollen transported by bats and birds near cultivated and wild agaves, but overall, bats transported greater loads than birds. Nocturnal pollen movement was more frequent, and the maximum distance recorded was 630 m (diurnal and nocturnal), with no transfer between cultivated and wild plants. Bats seem to provide a greater pollination service than birds in our focal anthropized landscape. It is necessary to incorporate management practices into mezcal production that ensure enough food for the wide array of animal species using this resource, which in turn will help to maintain the pollination service.

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Positional effects on fruit production and filling in two anemophilous Nothofagus species

Torres

Gallo

Puntieri

2020

Flora

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Eficiencia reproductiva y producción de polen en Nothofagus alpina en un huerto semillero clonal

Cited by 5 publications

References 11 publications

Pollen Production in Theobroma cacao L. Genotypes National Type and CCN-51 and Its Relationship with Climatic Factors on the Ecuadorian Coast

Pollen Production in Theobroma cacao L. Genotypes National Type and CCN-51 and Its Relationship with Climatic Factors on the Ecuadorian Coast

Pollen movement of the endemic Agave cupreata by bats and birds in western Mexico

Positional effects on fruit production and filling in two anemophilous Nothofagus species

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