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Journal articles on the topic 'Cross pollination'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Reyes, Hortensia Cabrera, David Draper, and Isabel Marques. "Pollination in the Rainforest: Scarce Visitors and Low Effective Pollinators Limit the Fruiting Success of Tropical Orchids." Insects 12, no. 10 (2021): 856. http://dx.doi.org/10.3390/insects12100856.

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A single plant might be visited by many flower visitors but not all might act as pollinators. Legitimate pollinators might also differ considerably in their efficiency, limiting pollination success. Unsuitable climatic conditions such as rain also affect pollinator activity. However, in the evergreen rainforest there is no prolonged dry season and flowering occurs usually under rain. Here, we explore the dependence on pollinators and the efficiency of flower visitors for the fruiting success of 10 Andean rainforest orchids. All species were self-compatible but strictly pollinator-dependent. Ov

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Atmowidi, Tri, Muchamad Nur Cholis, Arif Maulana, Windra Priawandiputra, and Sih Kahono. "Effectiveness of Pollinator Insects in Increasing Fruit Formation of Pummelo (Citrus maxima (Burm.) Merr.)." September 2022, no. 16(09):2022 (September 1, 2022): 1078–83. http://dx.doi.org/10.21475/ajcs.22.16.09.p3562.

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Pummelo (Citrus maxima (Burm.) Merr.) is a type of plant which have commercial value, and at least 24 cultivars are spread across various regions in Indonesia. Some cultivars have self-incompatibility (SI) mechanisms as genetic barriers to fertilization, but this can be reduced through cross-pollination by insects. Therefore, this study aims to measure the effectiveness of wild pollinator insects, as well as human and bee pollinations in pummelo. A total of six treatments were set up, namely closed pollination or control, open treatment, human pollination using pollen from the same tree (geito

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3

Vaz, Carlos G., Domingos de Oliveira, and Orlando S. Ohashi. "Pollinator Contribution to the Production of Cowpea in the Amazon." HortScience 33, no. 7 (1998): 1157–59. http://dx.doi.org/10.21273/hortsci.33.7.1157.

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Cowpea, Vigna unguiculata (L.) Walp., is a very important legume in the diet of the population of the Amazon. Although it is autogamous, this species has a cross-pollination rate of ≈10%. Over several years, the mean productivity of cowpea has declined. We suggest that this is linked to a decrease in or an absence of pollinating insects in the fields. The objective of this study is to ascertain the pollinator contribution to cowpea production, as well as to determine the pollination type of the `BR3-Tracuateua' cultivar. In an experimental design, four treatments were compared: no pollination,

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4

Lyrene, P. M. "Pollen Source Influences Fruiting of ‘Sharpblue’ Blueberry." Journal of the American Society for Horticultural Science 114, no. 6 (1989): 995–99. http://dx.doi.org/10.21273/jashs.114.6.995.

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Abstract The effects of cross-pollination, self-pollination, and mixed (self plus cross) pollination of ‘Sharpblue’ blueberry (primarily V. corymbosum) were studied. The pollen for cross-pollination came from V. corymbosum clones ‘O’Neal’ and ‘FL 2-1’. Self-pollination resulted in 37% fruit set, compared to 74% to 91% set for the other pollination treatments. The number of well-developed seeds per matured berry averaged 3.5 for self-pollination, 13.0 for mixed pollination, and 24.4 for cross-pollination. The number of days from pollination to ripe fruit was highly and negatively correlated wit

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Tedesco, Solange B., Miguel Dall'Agnol, Maria Teresa Schifino-Wittmann, and José F. M. Valls. "Mode of reproduction of Brazilian species of Adesmia (Leguminosae)." Genetics and Molecular Biology 23, no. 2 (2000): 475–78. http://dx.doi.org/10.1590/s1415-47572000000200038.

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Mode of reproduction was studied in 15 species of Adesmia DC. (Leguminosae). In six species, three treatments were used: mutual pollination, mechanical stimulation and control. Fifty-four plants of these six species were grown in a greenhouse, individually isolated in nylon screen boxes. Flowers were labelled and submitted to the different treatments. In addition, the frequency of spontaneous self-pollination in the absence of pollinators was studied in 200 plants of nine other species. These 200 plants were kept in a greenhouse, which avoided contact with any possible pollinator. Adesmia bico

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Pound, L. M., B. Patterson, M. A. B. Wallwork, B. M. Potts, and M. Sedgley. "Pollen competition does not affect the success of self-pollination in Eucalyptus globulus (Myrtaceae)." Australian Journal of Botany 51, no. 2 (2003): 189. http://dx.doi.org/10.1071/bt02082.

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This study investigated whether pollen competition favours cross- over self-pollination in Eucalyptus globulus Labill. ssp. globulus. Controlled pollinations with self-pollen, cross-pollen and a mixture of self- and cross-pollen were conducted on three partially self-incompatible trees. The paternity of individual seeds resulting from mixed pollination was determined by isozyme analysis. No evidence for pollen competition was found. Instead, seed paternity reflected the level of self-incompatibility of each tree as determined by separate self- and cross-pollinations. Furthermore, the number of

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Marquard, Robert D. "Outcrossing Rates in Pecan and the Potential for Increased Yields." Journal of the American Society for Horticultural Science 113, no. 1 (1988): 84–88. http://dx.doi.org/10.21273/jashs.113.1.84.

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Abstract Nuts produced from controlled crosses of ‘Western’ pecan [Carya illinoensis (Wangenh.) C. Koch] pollinated with ‘Wichita’ were 20% heavier and 12% larger by volume than self-pollinated nuts. The inherited biochemical marker of malate dehydrogenase was used to quantify outcrossing in a ‘Western’ orchard with ‘Wichita’ as the pollinator. The frequency of cross-pollination declined with distance from the pollinator, and the linear equation y = 53.9 − 6.1x was derived to estimate percent cross-pollination (y) in row (x) away from the pollinator. A model to estimate relative orchard produc

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SAZAN, MORGANA S., ANTONIO DIEGO M. BEZERRA, and BRENO M. FREITAS. "Oil collecting bees and Byrsonima cydoniifolia A. Juss. (Malpighiaceae) interactions: the prevalence of long-distance cross pollination driving reproductive success." Anais da Academia Brasileira de Ciências 86, no. 1 (2014): 347–58. http://dx.doi.org/10.1590/0001-3765201420130049.

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Oil-collecting bees are the natural pollinators of oil-flower plants, but little is known about the pollination process and the effectiveness of their pollination service to the reproductive success of their host plants. In species of Byrsonima the reproductive system have been described as auto-compatible or self-incompatible. We studied the reproductive system of Byrsonima cydoniifolia, the fructification by means of short, medium and long-distance cross pollinations, the morphology and floral biology and the pollination interactions with species of oil-collecting bees. By means of controlle

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Kenebayev, A. T., S. T. Yerzhanova, M. A. Yesimbekova, S. S. Abayev, and B. B. Kalibayev. "FERTILITY OF ALFALFA VARIETIES IN SELF-POLLINATION AND CROSS-POLLINATION." Bulletin of the Korkyt Ata Kyzylorda University 63 (2022): 160–69. http://dx.doi.org/10.52081/bkaku.2022.v63.i4.140.

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The article presents the results of studying alfalfa in a collection nursery by fertility, self-fertility, number of seeds in one pod, percentage of fertility of seedbuds in the ovary, number of seedbuds in one flower and seed productivity. The goal of the research is to study self-pollination and cross-pollination, fertility of a collection of alfalfa cultivars of different ecological and geographical origin to apply the best varieties in breeding process. All the experiments carried out at the «LLP Kazakh Research Institute of Agriculture and Plant» study area. We involved 134 varieties of a

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Finatto, Taciane, Karine L. Dos Santos, Neusa Steiner, et al. "Late-acting self-incompatibility in Acca sellowiana (Myrtaceae)." Australian Journal of Botany 59, no. 1 (2011): 53. http://dx.doi.org/10.1071/bt10152.

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Acca sellowiana (Berg) Burret is a predominantly allogamous species with hermaphrodite flowers that has barriers to self-fertilisation such as dichogamy by protogyny and self-incompatibility. This study aimed to identify when self-incompatibility occurs in A. sellowiana flowers submitted to self-pollinations. Pollinations were made using nine known self-incompatible accessions in several treatments including manual cross-pollination, manual self-pollination, no pollination and natural pollination. Flowers were pollinated and pistils collected at times ranging from 1 to 30 days after pollinatio

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Evans, Kathleen, Jenan El-Hifnawi, Cerruti Hooks, and Anahí Espíndola. "Benefits of Cross-Pollination in Vegetable Soybean Edamame." Journal of Pollination Ecology 33 (December 15, 2023): 329–40. http://dx.doi.org/10.26786/1920-7603(2023)728.

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Dependence on cross-pollination varies widely among wild and cultivated plant species. Even among crops that are less dependent on outcrossing, such as soybean (Glycine max L.), cross-pollination can improve fruit quality and commercial value. There is a growing body of literature regarding the role of insect pollination in soybean; however, there is a knowledge gap on the intersection between the reproductive system of soybean and its pollination ecology. To address this gap, we first sought to characterize the reproductive system of vegetable soybean (edamame) in terms of benefits and relian

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Howlett, Brad G., Samantha F. J. Read, Maryam Alavi, et al. "Cross-pollination Enhances Macadamia Yields, Even With Branch-level Resource Limitation." HortScience 54, no. 4 (2019): 609–15. http://dx.doi.org/10.21273/hortsci13329-18.

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Macadamia is partially self-incompatible and cross-pollination is considered important to improve yields. However, questions remain regarding the importance of self- vs. cross-pollination, and subsequently whether managed pollinators are useful in commercial orchards. Pollinators play a key role in cross-pollination, but for self-pollination, the protandrous florets might also benefit from the movement of potentially more viable self-pollen among florets, racemes, and trees through pollinator movement. There is also a lack of information on pollination deficits throughout orchards and whether

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Hares, Amber. "Cross-Pollination." Afterimage 33, no. 3 (2005): 16–17. http://dx.doi.org/10.1525/aft.2005.33.3.16.

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WASER MARYV, NICHOLAS M., MARY V. PRICE, and ROBERT I. BERTIN. "Cross-pollination." Nature 356, no. 6371 (1992): 667–68. http://dx.doi.org/10.1038/356667b0.

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15

Kahn, Tracy L., and Darleen A. DeMason. "Citrus pollen tube development in cross-compatible gynoecia, self-incompatible gynoecia, and in vitro." Canadian Journal of Botany 66, no. 12 (1988): 2527–32. http://dx.doi.org/10.1139/b88-344.

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The route of 'Orlando' tangelo (Citrus paradisi Macf. × C. reticulata Blanco) pollen tubes was traced and compared in self-incompatible pollinations and cross-compatible pollinations with 'Dancy' tangerine (C. reticulata Blanco). In both crosses, 'Orlando' pollen germinated in the stigmatic exudate and grew between the papillae on the stigma surface and inter-cellularly between the parenchymatous cells until reaching a stylar canal by 3 days. However, in the incompatible pollination, irregular deposition of callose occurred in the pollen tube walls as early as 1 day after pollination. By day 6

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16

Kämper, Wiebke, Joel Nichols, Trong D. Tran, Christopher J. Burwell, Scott Byrnes, and Stephen J. Trueman. "Flower Visitors, Levels of Cross-Fertilisation, and Pollen-Parent Effects on Fruit Quality in Mango Orchards." Agronomy 13, no. 10 (2023): 2568. http://dx.doi.org/10.3390/agronomy13102568.

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Pollination is essential for the reproductive output of crops. Anthropogenic disturbance and global pollinator decline limit pollination success, reducing the quantity or quality of pollen. Relationships between the abundance of flower visitors and fruit production are often poorly understood. We aimed to (1) identify and quantify flower visitors in a mango orchard; (2) assess how much of the crop resulted from self- versus cross-pollination at increasing distances from a cross-pollen source in large, single-cultivar blocks of the cultivar Kensington Pride or the cultivar Calypso; and (3) dete

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17

Wood, Bruce W. "Cross-pollination within Pecan Orchards." HortScience 31, no. 4 (1996): 583d—583. http://dx.doi.org/10.21273/hortsci.31.4.583d.

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Pecan is wind pollinated, exhibits heterodichogamy and are either protandrous (I) or protogynous (II). Orchards are typically established using two complimentary flowering types but with no further scrutiny as to the degree of compatibility of these two types. Additionally, orchards are sometime established with a very low frequency of pollinator. An evaluation of several orchards revealed that yield losses are due to poor pollination is likely common. Data indicate that trees beyond about 46 m (150 feet) from a complementary pollinator exhibit substantial reductions in fruit-set; therefore, l

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18

Peter, Craig I., and Steven D. Johnson. "Doing the twist: a test of Darwin's cross-pollination hypothesis for pollinarium reconfiguration." Biology Letters 2, no. 1 (2005): 65–68. http://dx.doi.org/10.1098/rsbl.2005.0385.

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Mating success in plants depends largely on the efficiency of pollen dispersal. For hermaphrodite plants, self-pollination, either within or among flowers, can reduce mating opportunities because of pollen and ovule discounting and inbreeding depression. Self-pollination may be particularly detrimental in plants such as orchids and asclepiads that package each flower's pollen into one or more pollinia which, together with accessory structures, comprise a pollinarium. Darwin proposed that physical reconfiguration of pollinaria serves as a mechanism for reducing the likelihood of self-pollinatio

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19

Travers, Steven E., Kirk Anderson, Pati Vitt, and Marion O. Harris. "Breeding system and inbreeding depression in the rare orchid, Platanthera praeclara, in a fragmented grassland landscape." Botany 96, no. 3 (2018): 151–59. http://dx.doi.org/10.1139/cjb-2017-0104.

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An important consequence of self-compatibility in plants is that self-pollination can have deleterious effects on plant fitness because of inbreeding. We conducted a hand pollination experiment under field conditions to measure the magnitude of inbreeding depression associated with self-pollination in the rare western prairie fringed-orchid Platanthera praeclara Sheviak and Bowles. By comparing capsules and seeds resulting from cross versus self-pollination treatments, we determined that self-pollination reduces seed quality while having no detectable effect on capsule production or seed numbe

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Gurung, Subhankar, Arun Chettri, Aita Rani Subba (Limboo), Arunika Subba, and Aditya Moktan Tamang. "Pollination Requirements and Their Impact on Yield of Sikkim Mandarin (Citrus reticulata Blanco) in an agricultural field in Eastern Himalayas, India." Current Agriculture Research Journal 13, no. 1 (2025): 160–71. https://doi.org/10.12944/carj.13.1.17.

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In the face of sporadic pollinator availability, fruit crops are believed to have evolved selfing, outcrossing, apomixis, or mixed mating strategies to ensure effective reproduction. This study investigates the species’ breeding system and pollination efficiency by evaluating five pollination treatments: open pollination, cross-pollination, geitonogamous self-pollination, autogamy and apomixis. Apis cerana was found to be the most common mandarin pollinator, with a pollination efficiency of 0.5. Sikkim mandarins have partial self-incompatibility, according to field tests, with an index of self

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Azmi, Wahizatul Afzan, Wan Zaliha Wan Sembok, Siti Noraishah Mohd Nasaruddin, Nur Syazana Azli, Muhammad Firdaus Mohd Hatta, and Tengku Norulhuda Tg Muhammad. "Evaluation of Native Stingless Bee Species (Heterotrigona itama and Geniotrigona thoracica) for Pollination Efficiency on Melon Manis Terengganu." Malaysian Applied Biology 51, no. 5 (2022): 229–35. http://dx.doi.org/10.55230/mabjournal.v51i5.2360.

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Melon Manis Terengganu (MMT) is a newly developed melon cultivar that is exclusively planted in Terengganu and has monoecious flowers where female and male parts are in different flowers of the same plant. Current practise for MMT pollination mainly depends on humans by hand-cross pollination treatment. However, until now little study on the potential of stingless bees as pollinator for greenhouse MMT has been documented in Malaysia. In this study, two species of stingless bees, Heterotrigona itama and Geniotrigona thoracica were placed with the MMT in the greenhouse. This study is aimed to in

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KOUBOURIS, GEORGIOS C., IOANNIS T. METZIDAKIS, and MILTIADIS D. VASILAKAKIS. "INFLUENCE OF CROSS-POLLINATION ON THE DEVELOPMENT OF PARTHENOCARPIC OLIVE (OLEA EUROPAEA) FRUITS (SHOTBERRIES)." Experimental Agriculture 46, no. 1 (2009): 67–76. http://dx.doi.org/10.1017/s0014479709990500.

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SUMMARYThe impact of three different pollination treatments (self-, cross-, free-) on the degree of shotberry (seedless fruit) formation of the olive tree cultivars (cvs) Koroneiki, Kalamata, Mastoidis and Amigdalolia was studied for three consecutive years. Controlled crosses were made for the cross-pollination treatments, while for the free pollination treatment flowers were allowed to receive pollen from more than 40 cultivars present in the field. Significant differences were recorded between treatments, cultivars and years. The lowest degree of shotberry formation was observed in free-pol

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Cézar, Kelve, Elizabeth Franklin, and Carlos Eduardo Pinto. "Temporal Variation in Pollinators’ Visitation of Lantana camara in a Tropical Urban Landscape: Does Butterfly Abundance and Richness Drive the Fruit Set?" Ekológia (Bratislava) 41, no. 1 (2022): 46–56. http://dx.doi.org/10.2478/eko-2022-0006.

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Abstract Pollinator richness, abundance and visitation frequency may be affected by the abundance of floral resources and abiotic factors, influencing plant reproductive success. We analysed whether the diversity, abundance and frequency of butterfly visitation on Lantana camara vary across the year in a tropical urban landscape and whether this variation in butterfly community influences plant’s reproductive success. A two-period survey, referred to here as rainier and drier seasons, was carried out in 12 spatially independent plants. Five pollination treatments were applied: single visit, ha

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Khanduri, Vinod Prasad, Kewat Sanjay Kumar, Chandra Mohan Sharma, et al. "Passerine birds supporting cross pollination in Erythrina stricta Roxb." Dendrobiology 85 (June 2, 2021): 117–26. http://dx.doi.org/10.12657/denbio.085.0011.

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Erythina stricta is an ecologically important tree species in the rainforests of India and its nectar within the flowers contributes to birds’ diet and survival. Reports on the pollination of this species have not been published so far. We therefore explore the reproductive system of this tree species which has great significance to its ecosystem. Birds have an important role in the reproduction of trees through pollination particularly in tropical areas where reproductive success mostly depends on animal pollinator interactions. Study of visitation and nectar feeding behaviour of birds along

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Khanduri, Vinod Prasad, Kewat Sanjay Kumar, Chandra Mohan Sharma, et al. "Passerine birds supporting cross pollination in Erythrina stricta Roxb." Dendrobiology 85 (2021): 117–26. http://dx.doi.org/10.12657/denbio.085.011.

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Erythina stricta is an ecologically important tree species in the rainforests of India and its nectar within the flowers contributes to birds’ diet and survival. Reports on the pollination of this species have not been published so far. We therefore explore the reproductive system of this tree species which has great significance to its ecosystem. Birds have an important role in the reproduction of trees through pollination particularly in tropical areas where reproductive success mostly depends on animal pollinator interactions. Study of visitation and nectar feeding behaviour of birds along

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Goldingay, RL, SM Schibeci, and BA Walker. "Breeding System and Pollination Levels of Banksia ericifolia." Australian Journal of Botany 39, no. 4 (1991): 365. http://dx.doi.org/10.1071/bt9910365.

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Experiments were carefully designed to determine the breeding system of Banksia ericifolia L.f. An equivalent percentage of flowers (78%) contained pollen tubes following self-pollination and open-pollination while a significantly smaller percentage of flowers in an autogamy treatment (44%) and cross-pollination treatment (55%) contained pollen tubes. Significantly more of the inflorescences in the open-pollination (60%) and cross-pollination (33%) treatments produced fruit compared with those in the self-pollination (11%) and autogamy treatments (13%). We suggest that B. ericifolia is largely

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Hartmeyer, Irmgard, and Siegfried R. H. Hartmeyer. "Comparison of Byblis 'Goliath' (B. filifolia), Byblis 'David' (B. liniflora), and their putative fertile hybrid." Carnivorous Plant Newsletter 40, no. 4 (2011): 129–35. http://dx.doi.org/10.55360/cpn404.ih854.

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Seed derived plants from the cultivars, Byblis ‘Goliath’ (Barnes 2009) and Byblis ‘David’ (Barnes 2010) were cross pollinated. While the Byblis ‘Goliath’ needs buzz-pollination to release pollen, the hybrid between these two taxa develops self-pollinating flowers, like its robust B. liniflora parent. This paper is a study of these cross pollination events and its results.

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Davenport, Thomas L., Zhentu Ying, and Raymond J. Schnell. "A Fresh Look at Avocado Pollination." HortScience 41, no. 4 (2006): 985D—985. http://dx.doi.org/10.21273/hortsci.41.4.985d.

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The synchronously dichogamous flowering behavior of avocado has historically been assumed to promote cross-pollination. Preliminary studies in southern California have revealed that self-pollination is more typical. The primary objective of the California research is to determine the paternity of individual fruit sampled during early and late fruit development using SSR markers. Cultivars included Hass as the primary cultivar and Bacon, Ettinger, Fuerte, Harvest, Lamb Hass, Marvel, Nobel, SirPrize, and Zutano serving as cross-pollinizing cultivars. We were able to: 1) estimate proportions of s

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Manthos, Ioannis, Thomas Sotiropoulos, and Ioannis Vagelas. "Is the Artificial Pollination of Walnut Trees with Drones Able to Minimize the Presence of Xanthomonas arboricola pv. juglandis? A Review." Applied Sciences 14, no. 7 (2024): 2732. http://dx.doi.org/10.3390/app14072732.

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Walnut (Juglans regia L.) is a monoecious species and although it exhibits self-compatibility, it presents incomplete overlap of pollen shed and female receptivity. Thus, cross-pollination is prerequisite for optimal fruit production. Cross-pollination can occur naturally by wind, insects, artificially, or by hand. Pollen has been recognized as one possible pathway for Xanthomonas arboricola pv. juglandis infection, a pathogenic bacterium responsible for walnut blight disease. Other than the well-known cultural and chemical control practices, artificial pollination technologies with the use of

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Caldwell, Margueritte J. "Cross Pollination Overdue." English Journal 88, no. 4 (1999): 10. http://dx.doi.org/10.2307/822407.

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Birdsall, Connie, and Brendán Murphy. "Cross-channel pollination." Design Management Journal (Former Series) 14, no. 4 (2010): 44–51. http://dx.doi.org/10.1111/j.1948-7169.2003.tb00350.x.

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Joshi, Udit, Kiran Kothiyal, Yogesh Kumar, and Rajendra Bhatt. "Role of honeybees in horticultural crop productivity enhancement." INTERNATIONAL JOURNAL OF AGRICULTURAL SCIENCES 17, AAEBSSD (2021): 348–55. http://dx.doi.org/10.15740/has/ijas/17-aaebssd/348-355.

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Pollination is vital to conserve the planet’s vast wealth of biodiversity.The pollinator is a living organism transporting pollen grains from the male part to the flower’s fertilizing stigma.Fruit and seed set mainly in cross-pollinated crops dependon honeybees since their bodily parts have been engineered to capture the most pollen grains possible andhavea rapid reproductive rate. Insects are responsible for about 80% of all pollination activity, with bees accounting for over 80% of all insect pollination.Every day, a given bee colony may pollinate about 300 million flowers.Honey bees are con

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Selak, Gabriela Vuletin, Slavko Perica, Smiljana Goreta Ban, Mira Radunic, and Milan Poljak. "Reproductive Success after Self-pollination and Cross-pollination of Olive Cultivars in Croatia." HortScience 46, no. 2 (2011): 186–91. http://dx.doi.org/10.21273/hortsci.46.2.186.

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Olive orchard productivity largely depends on the choice of planted cultivars and their pollination needs. Orchard designs in Croatia are changing because a number of valuable foreign olive cultivars, mostly Italian, have been introduced in this region in the last 30 years. The compatibility relationships of introduced cultivars with autochthonous cultivars are unknown. With the objective of studying reproductive behavior of the most important Croatian cultivars (Drobnica, Lastovka, Levantinka, and Oblica) and their cross-pollination to recently introduced Italian cultivars Leccino and Pendoli

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Gómez, Jesús Hernando, Pablo Benavides, Juan Diego Maldonado, Juliana Jaramillo, Flor Edith Acevedo, and Zulma Nancy Gil. "Flower-Visiting Insects Ensure Coffee Yield and Quality." Agriculture 13, no. 7 (2023): 1392. http://dx.doi.org/10.3390/agriculture13071392.

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(1) Background: The participation of insects in the pollination of self-pollinating plants, such as coffee, is still controversial. This study determined the effect of flower-visiting insects on coffee berry set, yield, and quality. (2) Methods: Over 2 years, five evaluations in different locations, dates, and harvest times were carried out. Each evaluation consisted of eight treatments with 50 replicates each, arranged in a completely randomized experimental design. Treatments were established to identify the contribution of insects, wind, gravity, self-pollination, and cross-pollination to c

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Kämper, Wiebke, Cao Dinh Dung, Steven M. Ogbourne, Helen M. Wallace, and Stephen J. Trueman. "High self-paternity levels and effects of fertilised-seed number on size of strawberry fruit." PLOS ONE 17, no. 9 (2022): e0273457. http://dx.doi.org/10.1371/journal.pone.0273457.

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Cross-pollination can increase fruit production in both self-incompatible and self-compatible fruit crops. However, it is often unclear what proportions of the fruit crop result from cross-pollination. We quantified the proportion of cross-pollinated seeds and the proportion of fertilised seeds in two strawberry cultivars, Red Rhapsody and Sundrench, at increasing distances from a cross-pollen source. We assessed whether fully self-pollinated fruit and partly cross-pollinated fruit differed in fruit size, colour, firmness, Brix and acidity. We also assessed whether fruit size and quality were

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Kahn, Tracy L., and Darleen A. DeMason. "A quantitative and structural comparison of Citrus pollen tube development in cross-compatible and self-incompatible gynoecia." Canadian Journal of Botany 64, no. 11 (1986): 2548–55. http://dx.doi.org/10.1139/b86-337.

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Pollen tube development in Orlando tangelo (Citrus paradisi Macf. × C. reticulata Blanco.) was compared within and between cross-compatible pollinations of Orlando pollen on Dancy tangerine (C. reticulata Blanco.) stigmas and self-incompatible pollinations on Orlando tangelo stigmas. Orlando and Dancy gynoecia were morphologically similar but differed slightly in stigma, style, and ovary lengths. Orlando pollen tube development was studied 1, 3, 6, 9, and 12 days after both cross- and self-pollination to record the number of pollen tubes at each of five levels: stigma surface, upper style, low

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B, Gagan, and Eswarappa G. "Assessment of Self-incompatibility and the Different Modes of Pollination on Seed Set and Yield of Buckwheat (Fagopyrum esculentum M.)." UTTAR PRADESH JOURNAL OF ZOOLOGY 45, no. 24 (2024): 242–53. https://doi.org/10.56557/upjoz/2024/v45i244730.

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The movement pattern of Apis species of honey bees Viz., Apis cerana F., Apis florea F. and Apis mellifera L. recorded during their foraging period revealed that they visited either pin or thrum morph, vice-versa thus bringing the effective cross pollination of both the flower morphs. Among the hand cross-pollinated treatments pollen from pin morph to thrum morph and pollen from thrum morph to pin morph was compatible and resulted in 100 per cent seed set. The weight of seed varied among treatments with a maximum when thrum morph was hand cross-pollinated with pollen from pin morph. Effect of

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Marques, Isabel, David Draper, and José María Iriondo. "Costs and benefits of the mixed-mating system of Narcissus serotinus (Amaryllidaceae) in the conservation of small fragmented populations." Botany 92, no. 2 (2014): 113–22. http://dx.doi.org/10.1139/cjb-2013-0197.

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Small fragmented populations often exhibit reduced plant–pollinator interactions and scarce outcrossing opportunities. In this context, mixed-mating systems can be advantageous since selfing can provide reproductive assurance, but they may also carry relevant costs such as those involved in inbreeding depression. This study examines the advantages and costs of selfing in Narcissus serotinus L., a mixed-mating geophyte that currently occurs in several fragmented populations in Portugal, that resulted from the construction of the largest European dam. Observation of pollinators revealed that cro

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Reese, Matthias A., Rachele S. Wilson, Joel Nichols, and Stephen J. Trueman. "Declining Outcrossing Rates Inside Orchard Blocks of ‘Maluma’ and ‘Shepard’ Avocado (Persea americana Mill.) Trees: Effects on Fruit Yield and Quality." Plants 14, no. 8 (2025): 1218. https://doi.org/10.3390/plants14081218.

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Many rapidly expanding food crops, including avocado (Persea americana Mill.), are dependent on animal pollination but there is a growing shortfall in global pollinator supply. Avocado flowers are insect-pollinated and yields of the main cultivar, ‘Hass’, are often pollen-limited, especially in the middle of single-cultivar orchard blocks, where there is limited deposition of cross-pollen from another cultivar. We analysed two avocado cultivars of alternate flowering types, ‘Maluma’ (Type A) and ‘Shepard’ (Type B), using SNP-based DNA markers to identify the pollen parent of fruit at different

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Shpak, Y. V., U. V. Leheta, and K. S. Sosnovskyi. "Importance of pollinator diversity for sunflower seed production." Agrology 6, no. 4 (2023): 79–85. http://dx.doi.org/10.32819/021113.

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The sunflower (Helianthus annuus Linnaeus) is one of the most important food crops in the world. In modern agroecology, this pivotal plant is deeply intertwined with diverse pollination mechanisms. This study elucidates the multifaceted contributions of various pollinator taxa, delving into their respective efficiencies and behaviors vis-à-vis sunflower reproductive success. The honeybee (Apis mellifera Linnaeus, 1758) plays a central role in sunflower pollination, transferring pollen over large distances, thereby bolstering the genetic diversity of sunflower populations. While sunflowers deri

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Cruz, Darci de Oliveira, Breno Magalhães Freitas, Luis Antônio da Silva, Eva Mônica Sarmento da Silva, and Isac Gabriel Abrahão Bomfim. "Pollination efficiency of the stingless bee Melipona subnitida on greenhouse sweet pepper." Pesquisa Agropecuária Brasileira 40, no. 12 (2005): 1197–201. http://dx.doi.org/10.1590/s0100-204x2005001200006.

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The present study was carried out in Northeastern Region of Brazil, in order to investigate the use of stingless bee Melipona subnitida Ducke in the pollination of greenhouse sweet pepper (Capsicum annuum L.). Treatments of hand cross-pollination, hand self-pollination, pollination by bees and restricted pollination were performed. Results showed that despite sweet pepper flowers are considered autogamous, this crop benefits from pollination by M. subnitida, producing fruits significantly heavier and wider, containing a greater number of seeds and of better quality (lower percentage of malform

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Sánchez-Estrada, Alberto, and Julián Cuevas. "Profitability of Artificial Pollination in ‘Manzanillo’ Olive Orchards." Agronomy 10, no. 5 (2020): 652. http://dx.doi.org/10.3390/agronomy10050652.

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The fruit set in monovarietal ‘Manzanillo’ olive orchards is significantly increased under cross-pollination. This response lead to pollination designs including pollinizer selection, the number of pollinizer trees per hectare and their distribution in the orchard. However, the assignment of a substantial area to pollinizers of lesser commercial value might decrease profits. The strong influence of variable climates on the overlap of the blooming phenology of ‘Manzanillo’ and its pollinizer, and on pollen production and dispersal, are also notable risks. Artificial pollination is a feasible al

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Reed, Sandra M. "Pollination Biology of Hydrangea macrophylla." HortScience 40, no. 2 (2005): 335–38. http://dx.doi.org/10.21273/hortsci.40.2.335.

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Little information is available on the reproductive behavior of Hydrangea macrophylla (Thunb. Ex J.A. Murr.) Ser. The objectives of this study were to investigate time of stigma receptivity, viability of pollen from sterile flowers, and self-incompatibility in this popular ornamental shrub. Pollen germination and pollen tube growth in styles were examined using fluorescence microscopy. Stigma receptivity was examined in cross-pollinations made from 1 day before anthesis to 8 days after anthesis. Maximum stigma receptivity for the two cultivars examined occurred from anthesis to 4 days after an

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Raj, Hem. "Economically Important Products of Beekeeping Industry and Farmers` Awareness about Beehive Products in Shimla Hills of Himachal Pradesh, India." UTTAR PRADESH JOURNAL OF ZOOLOGY 45, no. 2 (2024): 42–54. http://dx.doi.org/10.56557/upjoz/2024/v45i23864.

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Insect pollinators are responsible for pollination of most the fruit crops and they are performing it well. Pollinator mediated cross-pollination is needed for better production of fruit crops. Many insects such as honey bees, bumble bees, wasps, hover flies, butterflies and beetles are important pollinators but honey bees are the most significant and efficient pollinators of fruit crops. Honey bees are economically very important because they not only help in pollination but provide other valuable products like honey, beeswax, propolis, royal jelly, bee venom and pollen. A survey was co

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Barreda-Castillo, José Martín, Emerson Ricardo Pansarin, Juan L. Monribot-Villanueva, Miguel Ángel Lozano-Rodríguez, José A. Guerrero-Analco, and Rebeca Alicia Menchaca-García. "Effect of pollen source on germination of Vanilla planifolia, V. pompona (Orchidaceae), and their interspecific hybrids." Botanical Sciences 103, no. 3 (2025): 625–43. https://doi.org/10.17129/botsci.3679.

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Background: Vanilla planifolia and V. pompona exhibit low seed germination rates. Although their fruits are obtained through manual self-pollination, the effect of intra- and interspecific cross-pollination on their fruits and seeds remains unknown. Hybrids organisms are considered potential alternatives to traditional cultivation. Questions: How does cross-pollination affect germination in V. planifolia and V. pompona? Do hybrids seeds exhibit greater germination than their parental species? Studied species: Vanilla planifolia, V. pompona, V. planifolia × V. pompona, V. pompona × V. planifoli

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Dung, Cao Dinh, Helen M. Wallace, Shahla Hosseini Bai, Steven M. Ogbourne, and Stephen J. Trueman. "Cross-pollination affects fruit colour, acidity, firmness and shelf life of self-compatible strawberry." PLOS ONE 16, no. 9 (2021): e0256964. http://dx.doi.org/10.1371/journal.pone.0256964.

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Cross-pollination affects the fruit characteristics of many crops but the effects of cross-pollination on fruit quality of strawberry (Fragaria × ananassa Duch.) are poorly known. This study determined how cross-pollination affects fruit quality of the strawberry cultivar, Redlands Joy, under controlled environment conditions. Plants were allocated to one of four treatments, with all flowers on each plant receiving either: (1) unassisted self-pollination (Autogamy); (2) hand-pollination with Redlands Joy pollen (Self); (3) hand-pollination with cross-pollen from a small-fruited cultivar (Sugar

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Aslmoshtaghi, Elham, Ali Reza Shahsavar, Majid Talebi, and Aziz Dazeh. "Comparison of different classical and molecular methods for identifying self-incompatibility in two olive cultivars." Spanish Journal of Agricultural Research 17, no. 3 (2019): e0804. http://dx.doi.org/10.5424/sjar/2019173-14761.

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Aim of study: To determine compatibility relationships and select suitable pollinizers for two olive (Olea europaea L.) cultivars (‘Amygdalolia’ and ‘Konservalia’).Area of study: The Kazeroun Olive Research Station, Fars, Iran.Material and methods: Emasculated flowers from ‘Amygdalolia’ and ‘Konservalia’ cultivars were treated with self-pollination, open-pollination, and cross-pollination with pollen from cultivars such as ‘Dacal’, ‘Amygdalolia’,‘Konservalia’, ‘Koroniki’, and ‘Manzanilla’. Controlled pollination, pollen tube growth, and molecular analysis were employed.Main results: Controlled

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Craddock, James Hill, R. J. Sauve, S. E. Schlarbaum, et al. "Pollination Methods for Cornus Breeding." HortScience 31, no. 4 (1996): 627d—627. http://dx.doi.org/10.21273/hortsci.31.4.627d.

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Hand pollinations and honey bees were used to cross Cornus florida cultivars in a series of experiments investigating dogwood pollination biology from a breeding viewpoint and testing the use of insects (domestic honey bees and ladybug beetles as pollinators in dogwood breeding. Experiments were conducted to study possible incompatibility between dogwood cultivars and to determine if self-compatibility and self-fertility occur in Cornus florida. Since 1993, ≈200 seedlings have been produced by hand and insect-mediated pollinations. Honey bees can be used in dogwood breeding. Trees cross pollin

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Hildesheim, Laura S., Øystein H. Opedal, W. Scott Armbruster, and Christophe Pélabon. "Fitness costs of delayed pollination in a mixed-mating plant." Annals of Botany 124, no. 5 (2019): 869–81. http://dx.doi.org/10.1093/aob/mcz141.

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Abstract Background and Aims To predict the evolutionary consequences of pollinator declines, we need to understand the evolution of delayed autonomous self-pollination, which is expected to evolve as a mechanism of reproductive assurance when cross-pollination becomes unreliable. This involves estimating the costs of increased levels of selfing as well as those associated with floral senescence. Methods We studied the mechanisms and costs of delayed self-pollination in the mixed-mating vine Dalechampia scandens (Euphorbiaceae) by first assessing among-population variation in herkogamy and dic

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Otieno, Mark, Neelendra Joshi, and Benjamin Rutschmann. "Flower visitors of Streptocarpus teitensis: implications for conservation of a critically endangered African violet species in Kenya." PeerJ 9 (January 26, 2021): e10473. http://dx.doi.org/10.7717/peerj.10473.

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Background The African violets are endangered plant species restricted mainly to the Eastern Arc Mountains biodiversity hotspots in Kenya and Tanzania. These plants grow well in shaded environments with high humidity. Given their restricted geographical range and published evidence of dependance on insect vectors to facilitate sexual reproduction, understanding their pollination biology is vital for their survival. Methods We conducted an empirical study using flower visitor observations, pan trapping and bagging experiments to establish the role of flower visitors in the fruit set of a locall

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