Relevant bibliographies by topics / Cross pollination

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  2. Dissertations / Theses
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  5. Conference papers
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Academic literature on the topic 'Cross pollination'

Author: Grafiati
Published: 4 June 2021
Last updated: 4 March 2023

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Journal articles on the topic "Cross pollination"

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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 (September 23, 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. Overall, we found low levels of fruit set in control flowers while experimental geitonogamous and cross-pollinations increased fruit set, revealing extensive pollination limitation in all populations. Seed viability dropped considerably after self and geitonogamous pollinations suggesting the possibility of early-acting inbreeding depression. Even though we monitored flower visitors on an extensive survey, few visitors were seen in these species and even fewer acted as legitimate pollinators. Thus, even though orchid pollination might be extremely diversified, these results show that few visitors are pollinating these species, explaining the low levels of fruit set recorded in the area studied.
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Vaz, Carlos G., Domingos de Oliveira, and Orlando S. Ohashi. "Pollinator Contribution to the Production of Cowpea in the Amazon." HortScience 33, no. 7 (December 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, with flowers in cages to prevent insect visits; open-pollination, with flowers exposed to all visiting insects; self-pollination, with flowers pollinated with their own pollen; and cross-pollination, with emasculated flowers being pollinated manually with pollen from another plant. We observed higher fruit set in the presence of pollinators (83%) than in their absence (77%, caged flowers). However, cross-pollination reduced both the number of seeds per pod and fruit set relative to self-pollination. This result suggests that pollinators have a complementary role in the yield of cowpea, by creating a mixed pollination system where self-pollination dominates.
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Lyrene, P. M. "Pollen Source Influences Fruiting of ‘Sharpblue’ Blueberry." Journal of the American Society for Horticultural Science 114, no. 6 (November 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 with berry seed number, regardless of the pollen source. Mixed pollinations delayed ripening an average of 7 days compared to cross-pollination, and self-pollination delayed ripening by an additional 13 days over mixed pollination.
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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 (June 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 bicolor, A. muricata, A. punctata and A. riograndensis produced seed both by cross- and self-pollination. Adesmia punctata and A. riograndensis need mechanical stimulation for self-pollination. Adesmia incana reproduced by self-pollination; however, the possibility of cross-pollination cannot be totally ruled out. Adesmia tristis reproduced mainly by cross-pollination and a mechanism of self-incompatibility is suggested. Among the nine species that were not exposed to pollinators, A. securigerifolia produced a large amount of seed, indicating that it is a self-pollinating species. Adesmia arillata, A. araujoi, A. ciliata, A. psoraleoides, A. rocinhensis, A. reitziana, A. sulina and A. vallsii did not produce any seed under the experimental conditions, suggesting that they are cross-pollinated or that they need mechanical stimulation to reproduce.
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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 seeds set per capsule following mixed pollination was significantly less than that following cross-pollination in the two least self-compatible trees. These results suggest that both self- and cross-pollen tubes reach ovules following mixed pollination and that a late-acting self-incompatibility mechanism operates to abort a certain proportion of self-penetrated ovules.
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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 (January 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 production predicts maximum efficiency of a ‘Western’ orchard when the frequency of the pollinator is 25% to 33%. Nut quality of ‘Western’ field samples was positively related to percent cross-pollination of the sample. Cross-pollination under field conditions of ‘Western’ by ‘Wichita’ increased nut weight and volume 31% and 16%, respectively.
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Hares, Amber. "Cross-Pollination." Afterimage 33, no. 3 (November 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 (April 1992): 667–68. http://dx.doi.org/10.1038/356667b0.

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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 (March 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 controlled pollinations we found self-incompatibility caused by abortion of most self-pollinated flowers and demonstrated that the prevailing cross pollination ensuring the reproductive success of B. cydoniifolia is the long-distance cross pollination and Centridini bees; Epicharis nigrita, particularly, are the pollinators promoting the gene flow between genetically distinct populations.
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Finatto, Taciane, Karine L. Dos Santos, Neusa Steiner, Leon Bizzocchi, Daniel F. Holderbaum, Jean P. H. J. Ducroquet, Miguel P. Guerra, and Rubens O. Nodari. "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 pollination (DAP). In both cross- and self-pollinations the fertilisation occurred from 18 DAP and the zygote was visualised at 24 and 26 DAP, respectively. The abscission of the self-pollinated flowers increased from 26 DAP onwards, when significant differences (P < 0.05) were found for the percentage of abscission among self-pollinated and cross-pollinated flowers. At 30 DAP, 72% of self-pollinated flowers were abscised. The size of ovules and ovaries of self-pollinated flowers showed no significant difference from those of non-pollinated flowers throughout 30 DAP, while those from cross-pollinated flowers were significantly larger (P < 0.05) than the other treatments from 22 and 24 DAP, respectively. After 40 DAP, there was no fruit development in self-pollination and non-pollination treatments. Our study brings greater clarity to the mechanism of self-incompatibility in A. sellowiana, indicating late-acting self-incompatibility occurring through the rejection/abscission of self-pollinated flowers precisely after syngamy and zygote formation.
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Dissertations / Theses on the topic "Cross pollination"

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Kaiser, Monica L. Ms. "Cross Pollination." Kent State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=kent1585150670540384.

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Robinson, Chelseigh. "Music and Art: Exploring Cross-Pollination." Digital Commons @ East Tennessee State University, 2013. https://dc.etsu.edu/honors/115.

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As a music student who was always more attracted to the “academic” side of music rather than the performance side, I have come to hold a great respect for music history. This interest only grew when I got the opportunity to study music for a semester in Edinburgh, Scotland. Being surrounded by so much history, both musical and artistic, only fed my passion. I began to notice many similarities between the development of music and art both during lectures at the university and in my leisure time in galleries. I noticed that composers and visual artists in the same time period would hold similar beliefs or thoughts, therefore similarities could be found between the two art forms. Oftentimes, I would come across a composer whose compositional techniques were directly influenced by an artist and/or vice versa. I became interested in this type of cross-pollination in music and soon began to ask myself the question “Have the development of art and music always been influenced by each other? How many composers were inspired by art?” When it came time to begin my honors thesis, I decided to address this topic. So, I chose to explore this type of cross-pollination in music and, in conjunction with this research, create my own musical composition based on a work of visual art of my own choosing. Specifically, I wanted to look more carefully at the technique composers had used historically to connect their pieces of music with particular pieces of visual art. I therefore chose several art-influenced compositions to examine how the music expresses the art. In the first chapter of my thesis, I discuss the problem of turning spatially existing art into a temporally existing composition and explore several compositions in which the composers chose to construct a musical narrative as an approach to this challenge. In the second chapter, I revisit the problem of turning art into music but instead explore a different set of compositions that overcome this issue using a ‘snapshot’ technique. In the third chapter, I take a look at ekprasis as a technique used to translate abstract art into music and focus on how one composition in particular expresses the artwork. The fourth chapter is a journal discussing the art I have chosen, the stages in my compositional process, and how I used what I learned from my research to create my own composition. I have included the score of my composition as the fifth chapter.
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Halgryn, Petrus J. (Petrus Johannes). "Cross pollination biology of apples, with special reference to 'African Red'." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51667.

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Thesis (MScAgric)--University of Stellenbosch, 2000.
ENGLISH ABSTRACT: Ineffective pollination of the main cultivar with the pollinator cultivar is due to either an incompatibility problem between the main and pollinator cultivar, or because the flowering times of the main and pollinator cultivars do not overlap adequately. Three trials were conducted to try and find a more effective way to determine cultivar compatibility and to group cultivars together according to their budburst reaction to chilling. Most apple cultivars are self-incompatible and need cross-pollination for fruit set. Due to differences in the genetically defined fertilisation compatibility between the pollen from the male parent (pollinator) and the egg cell of the female parent, various apple pollinators differ in their ability to set fruit with viable seed. Fruit weight and size are positively correlated with seed set although it has been found that the pollinator can have a direct influence on fruit quality. 'African Red' apple trees on M7 rootstock in an evaluation block on a commercial farm in the Koue Bokkeveld region (32°55'N 19°27'E, Mediterranean climate, ;::::1060Utah chill units, and ;::::530mm rainfall annually; altitude 966 m) were used to assess the influence of 5 pollinators ('Granny Smith', 'Winter Banana', 'Cripps' Pink', 'Cripps' Red' and 'Simpson Crab') on fruit set, fruit weight and length and diameter. The degree to which 'African Red' is self-compatible was also assessed and the effect of flowering position ("king" vs. lateral) on fruit quality was determined. None of the pollinators showed a significantly higher fruit set. No differences in fruit set were found between the "king" and lateral flowering positions. No significant differences were found in the average number or weight of well developed seeds between pollinators. In both years fruit weight was significantly correlated to seed number for all five pollinator cultivars. In 1998 'Simpson crab' gave fruit that were significantly more elongated than those of 'Cripps' Pink'. 'African Red' is highly self incompatible. Compatibility assessments that are based on the number of fruit that develop after the flowers ofthe main cultivar had been hand pollinated in field trials are a time-consuming process. Allele-specific PCR amplification for some of the known S-alleles of the incompatibility S-gene (S2, S3, S5, S7 and S9) was carried out to successfully predict the compatibility of genotypes. The results compared well with that found in literature. For all the Malus domestica cultivars tested at least one, but in some instances both alleles of the S-gene were determined. 'Simpson crab' (Malus baccata) did, however, not possess any of the tested S-alleles. One-year-old, ca. 40 mm long shoots of various apple cultivars were selected from commercial orchards in both the Elgin [34°S, 305 m, ca. 750 chill units (CU) (Richardson et al., 1974)] and Koue Bokkeveld (33°S, 945 m, ca. 1300 CU) regions of the Western Cape, South Africa in two consecutive years (1998 and 1999). Shoots were forced at a constant 25°C with continuous illumination after receiving their allocated chill units. The effect of chilling period on the budburst of each cultivar in both regions was estimated by determining, 1) the total proportion of budburst (%Bb), 2) the proportion of shoots with terminal budburst (%TBb), and 3) the rate of budburst [lI(days to 25% budburst)]. It was found that these indices differed significantly between cultivars, and within cultivars between areas, as far as budburst patterns, in reaction to chilling, were concerned. The rate of budburst was the most consistent in describing the reaction of buds to different chilling periods and could be used to group cultivars together according to their budburst reaction to chilling.
AFRIKAANSE OPSOMMING: KRUISBESTUIWINGSBIOLOGIE VAN APPELS MET SPESIALE VERWYSING NA 'AFRICAN RED'. Oneffektiewe kruisbestuiwing III die boord kan toegeskryf word aan Of onverenigbaarheid tussen die hoof- en bestuiwingskultivar Of as gevolg van die blomtyd van die kruisbestuiwer wat nie genoegsaam oorvleuel met die van die hoofkultivar nie. Drie proewe is uitgevoer om 'n meer effektiewe proses daar te stel vir die toets van kultivarverenigbaarheid en om kultivars te probeer groepeer na gelang van hul reaksie op bepaalde hoeveelhede koue. Meeste appelkultivars is selfonverenigbaar en benodig kruisbestuiwing vir genoegsame vrugset. As gevolg van verskille III die geneties gedefinieerde bevrugtingsverenigbaarheid tussen die stuifmeel van die manlike ouer (bestuiwer) en die eiersel van die vroulike ouer (hoofkultivar), verskil bestuiwers in hul vermoë om vrugte met sade te set. Vruggrootte en -massa is positief gekorreleerd met saadset alhoewel dit al gevind is dat die bestuiwer op sig self ook 'n invloed op vrugkwaliteit kan hê. 'African Red' appelbome op M7 onderstamme, in 'n evaluasie blok op 'n kommersiële plaas in die Koue Bokkeveld (32°55'N 19°27'E, Meditereense klimaat, ::::1060 Utah koue eenhede, en ::::530mmjaarlikse reënval; ligging 966 m), is gebruik om die invloed van 5 bestuiwers ('Granny Smith', 'Winter Banana', 'Cripps' Pink', 'Cripps' Red' and 'Simpson Crab') op vrugset, vrugmassa, -lengte en -deursnee oor twee seisoene te bepaal. Die mate waartoe 'African Red' self onverenigbaar is en die effek van blomposisie ("king" vs laterale blom) op vrugkwaliteit is ook bepaal. Geen een van die bestuiwers het vrugset beduidend beïnvloed nie. Ook is daar geen verskille gevind tussen die "king" en laterale blomposisies t.o.v. vrugset nie. Geen beduidende verskille is tussen bestuiwers gevind in die gemiddelde aantal of gewig van volsade geset nie .. In albei jare was die vrugmassa beduidend gekorreleerd met saadset vir al vyf bestuiwerkultivars. In 1998 het 'Simpson Crab' vrugte geset wat beduidend langer was as vrugte wat geset het toe 'Cripps' Pink' as bestuiwer gebruik is. Daar is ook gevind dat 'African Red' hoogs selfonverenigbaar is. Verenigbaarheidstoetse wat gebaseer is op die aantal vruggles wat ontwikkel nadat blomme van die hoofkultivar met die hand bestuif is, is 'n tydsame proses. Allele spesifieke PCR amplifikasie vir bekende S-allele van die onverenigbaarheids S-geen (S2, S3, S5 S7en S9) is suksesvol uitgevoer om die verenigbaarheid van genotipes vooraf te bepaal. Die resultate het goed vergelyk met wat in literatuur gevind is. Vir al die Malus domestica spesies wat getoets is, is ten minste een, en in sommige gevalle twee, van die S-allele gevind. Die blomappel 'Simpson' (Malus baccata) het egter nie een van die vyf S-allele opgelewer nie Een-jaar-oue, 40 mm lang lote van verskeie appelkultivars, is in twee opeenvolgende jare (1998 en 1999) vanuit kommersiële boorde in beide die Elgin [34°S, 305 m, ca. 750 koue eenhede (CU) (Richardson et al., 1974)] and Koue Bokkeveld (33°S, 945 m, ca. 1300 CU) areas van die Wes Kaap gsny. Die lote is geforseer om te bot by 'n konstante temperatuur van 25°C met deurlopende beligting, nadat elke groep lote aan 'n bepaalde hoeveelheid koue blootgestel is. Die effek van koue op bot van elke kultivar in beide areas is bepaal deur, 1) die totale persentasie knoppe wat gebot het, 2) die persentasie terminale knoppe wat gebot het, en 3) die tempo van bot [l/(dae tot 25% bot)] te meet. Daar is gevind dat bo-genoemde parameters beduidend tussen kultivars, en binne kultivars tussen areas, verskil. As 'n beskrywing van die reaksie van knoppe op koue het die tempo van bot die mees konstante resultate oor die twee opeenvolgende seisoene gelewer en kon hierdie parameter gebruik word om kultivars in groepe, na gelang van hul reaksie op koue, in te deel.
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Njontie, Tchiengue Charles William [Verfasser]. "Genetically modified maize : factors affecting cross-pollination and coexistence / Charles William Njontie Tchiengue." Kiel : Universitätsbibliothek Kiel, 2010. http://d-nb.info/1019985437/34.

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Walters, Peter. "Narrative in fiction and film : a practical study of the nature of cross-pollination in narrative structure." Thesis, University of Sheffield, 2015. http://etheses.whiterose.ac.uk/11930/.

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Written literature has evolved significantly over the centuries. The typical novel of the twenty-first century is different in form from the novel of the mid-nineteenth. Modern novels tend to have less descriptive exposition and are less apt to follow previous conventions of omniscient narration. What factors have influenced this change? At the end of the nineteenth century, for the first time in recorded history, a new art form emerged, one that was based on the technological achievement of the recorded moving image. This study examines to what extent, and in which ways, the new art form, cinema, has affected written literature, particularly the novel. What are the elements of cinema technique that have influenced writing on a structural level? How do they manifest themselves at a level of text? The research framework approaches these questions both theoretically and practically. The theoretical aspect examines sets of texts to see if anything definitive can be stated about this ‘cross-pollination’ of form. The investigative paradigm pursues avenues of research that incorporate structural analyses of texts and also the ways in which those texts operate at a level of mental processing. My intention is to concentrate more fully on ‘what those texts are doing’ rather than ‘what they are’. The approach is broadly ‘cognitive’, one that examines the processes that are undertaken during the reception of texts and during their production. The practical element of this framework is in the form of a novel, Jacks, which forms Volume 2 of this study. Here, the fictional account is designed to reflect aspects of the theoretical approach and to include subject matter pertaining to film and creative processes, to illustrate elements of the theory in a creative form. A final section proposes practical outcomes for the theory in the fields of creative writing practice and pedagogy.
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Yong, Kamuela E. "A mathematical model of the interactions between pollinators and their effects on pollination of almonds." Diss., University of Iowa, 2012. https://ir.uiowa.edu/etd/3020.

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California's almond industry, valued at $2.3 billion per year, depends on the pollinator services of honey bees, although pollination by other insects, mainly solitary wild bees, is being investigated as an alternative because of recent declines in the number of honey bee colonies. Our objective is to model the movements of honey bees and determine the conditions under which they will forage in less favorable areas of a tree and its surroundings when other pollinators are present. We hypothesize that foraging in less favorable areas leads to increased movement between trees and increased cross pollination between varieties which is required for successful nut production. We use the Shigesada-Kawasaki-Teramoto model (1979) which describes the density of two species in a two-dimensional environment of variable favorableness with respect to intrinsic diffusions and intra- and interspecific interactions of species. The model is applied to almond pollination by honey bees and other pollinators with environmental favorableness based on the distribution of flowers in trees. Using the spectral-Galerkin method in a rectangular domain, we numerically approximated the two-dimensional nonlinear parabolic partial differential system arising in the model. When cross-diffusion or interspecific effects of other pollinators was high, honey bees foraged in less favorable areas of the tree. High cross-diffusion also resulted in increased activity in honey bees in terms of accelerations, decelerations, and changes in direction, indicating rapid redistribution of densities to an equilibrium state. Empirical analysis of the number of honey bees and other visitors in two-minute intervals to almond trees shows a negative relationship, indicating cross-diffusion effects in nature with the potential to increase movement to a different tree with a more favorable environment, potentially increasing nut production.
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Eloy, Jones. "Polinização, produção e qualidade de butiá (Butia odorata Barb. Rodr.) Noblick & Lorenzi." Universidade Federal de Pelotas, 2013. http://repositorio.ufpel.edu.br/handle/ri/1144.

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Pollination is presented as a determining factor in the production of fruits in various fruit species, especially those that do not reproduce by parthenocarpy. This study aimed to evaluate the influence of self-pollination and cross-pollination of jelly palm in production and fruit quality. To this end, we used 14 genotypes of jelly palm of BAG of FAEM-UFPel, RS, Brazil. The treatments were: non-bagging (T1) and bagging with TNT (T2). Evaluated: average production cycle (days), average fruit weight (g), the average mass of pulp (g), pulp yield (%), average mass of pyrenes (g), number of fruits, equatorial diameter of fruits (EDF), longitudinal diameter of fruits (LDF), equatorial diameter of pyrenes (EDP), longitudinal diameter of pyrenes (LDP), relationship LDF/EDF, relationship LDP/EDP, amount of juice (ml), average number of almonds/pyrene (NA/P), almonds brocade/pyrene (%AB/P), average mass unitarian of almonds (AMUA), without almonds pyrenes (%WAP), skin colorimetry (°Hue), soluble solids (°Brix), titratable acidity (TA) ratio (SS/TA), juice pH, ascorbic acid (mg.100ml-1 juice), average date of flowering (DF) and average date of harvest (H). Self-pollination of jelly palm caused a reduction of the overall rates in the variables average mass of fruit, fruit number, EDP, NA/P, %AB/P, TA and ascorbic acid, significantly increased the average mass of pulp, relationship LDF/EDF , relationship LDP/EDP, amount of juice (ml), AMUA, % PSA, SS, ratio and pulp yield (%). It was concluded that the bagging of clusters of jelly palm cause declines, in the production, of 49.31%. However, leads to improvement in the quality of the fruit. The fruits that have been deprived of cross-pollination resulted in increased pulp yield (2.87%). The cross-pollination is essential in genotypes G. 32, G. 35, G. 57 and G. 63, without it there is no fruit production.
A polinização apresenta-se como fator determinante na produção de frutos em várias espécies de fruteiras, em especial naquelas que não se reproduzem por partenocarpia. Esta pesquisa objetivou avaliar a influência da autopolinização e da polinização cruzada de Butia odorata (Barb. Rodr.) Noblick & Lorenzi na produção e na qualidade do butiazeiro. Para tal, foram utilizados 14 genótipos de butiazeiros do banco ativo de germoplasma (BAG) da FAEM-UFPel. Os tratamentos utilizados foram: não-ensacamento (T1) e ensacamento com TNT (T2). Avaliou-se: ciclo médio de produção (dias), massa média dos frutos (g), massa média de polpa (g), rendimento de polpa (%), massa média dos pirênios (g), número de frutos, diâmetro equatorial dos frutos (DEF), diâmetro longitudinal dos frutos (DLF), diâmetro equatorial dos pirênios (DEP), diâmetro longitudinal dos pirênios (DLP), relação DLF/DEF, relação DLP/DEP, volume de suco (em ml), número médio de amêndoas/pirênio (NA/P), amêndoas brocadas/pirênio (%AB/P), massa média unitária de amêndoas (MMUA), pirênios sem amêndoas (%PSA), colorimetria da epiderme (°Hue), sólidos solúveis (°Brix), acidez titulável (AT), ratio (SS/AT), pH do suco, teor de ácido ascórbico (em mg de AA.100ml-1 suco), data média de floração (DMF em dd/mm/aa) e data média de colheita (DMC em dd/mm/aa). A autopolinização dos butiazeiros provocou redução dos índices gerais nas variáveis massa média dos frutos, número de frutos, DEP, NA/P, %AB/P, AT e ácido ascórbico; aumentou de forma significativa a massa média de polpa, relação DLF/DEF, DLP/DEP, volume de suco, MMUA, %PSA, SS, Ratio e rendimento de polpa. Concluiu-se que o ensacamento de cachos do butiazeiro diminui a produção em 49,31%, todavia, provoca melhoria na qualidade das frutas. As frutas que foram privadas da polinização cruzada resultaram em aumento do rendimento de polpa (2,87%). A polinização cruzada é fundamental nos genótipos G. 32, G. 35, G. 57 e G. 63, sem a qual não há produção de frutas.
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Pereira, Flávia Cristina Diniz [UNESP]. "Uso do efeito xênia em híbridos comerciais de milho (Zea mays L.)." Universidade Estadual Paulista (UNESP), 2003. http://hdl.handle.net/11449/98909.

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O fenômeno de xênia é descrito como o efeito direto do pólen no embrião e endosperma da semente, alterando suas características genéticas e proporcionando mudanças qualitativas e quantitativas. Vários caracteres do grão de milho como cor, tamanho, peso e teor de alguma substância apresentam esse efeito. Portanto existe a possibilidade deste fenômeno ser explorado com o cultivo de dois híbridos com sementes misturadas, buscando-se um aumento no rendimento da lavoura. O objetivo deste trabalho foi identificar pares de híbridos, em duas épocas de semeadura, que apresentem efeito xênia para os caracteres tamanho de grãos, peso médio de grãos e conteúdo de óleo e proteína. O trabalho foi conduzido na Fazenda de Ensino e Pesquisa da Faculdade de Engenharia de Ilha Solteira - UNESP, localizada no município de Selvíria - MS. Foram avaliados todos os pares possíveis, incluindo os recíprocos, entre os híbridos AG 8080, DKB 333B, DAS 32, P 30F80, TORK e XB 8010, sob delineamento estatístico de blocos casualizados com quatro repetições na primeira safra e três na segunda safra (safrinha). A polinização de cada híbrido (cruzamento ou sib) foi realizada manualmente em cada parcela, de acordo com o tratamento especificado. As análises indicaram efeito xênia de 15%, no peso médio dos grãos do híbrido XB 8010 quando polinizado pelo TORK, na primeira safra, quando em comparação com o XB 8010 polinizado com seu próprio pólen. Na Segunda safra o híbrido DKB 333B proporcionou um aumento de 20% no peso médio dos grãos do AG 8080. Para conteúdo de proteína, o efeito xênia foi significativo e negativo (-9,0%) quando o híbrido DKB 333B recebeu pólen do híbrido TORK, na primeira safra, e nos demais cruzamentos não houve influência da fonte polinizadora. Para o caráter conteúdo de óleo, a manifestação do efeito xênia ocorreu nas duas épocas... .
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Brown, Angela Philip. "Pollen, embryo and endosperm development following cross-pollination within and between the crop species Brassica campestris, Brassica oleracea, Brassica napus and Raphanus sativus." Thesis, University of Edinburgh, 1985. http://hdl.handle.net/1842/12858.

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Guo, Yi. "Self & cross incompatibility post-pollination responses and floral abscission in Coelogyne and related genera (Orchidaceae) : molecular aspects of self-incompatiblity compared with solanaceous plants." Thesis, University of Reading, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240303.

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Books on the topic "Cross pollination"

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Cross-pollination: The miracle of unity in intercession, revival, and the harvest. Shippensburg, PA: Revival Press, 1998.

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Darwin, Charles. The effects of cross and self fertilisation in the vegetable kingdom. New York: New York University Press, 1989.

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Bădulescu, Dana. Rushdie's cross-pollinations. Iași: Editura Junimea, 2013.

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Ontario. Ministry of Agriculture and Food. Pollination: Crops & Bees. S.l: s.n, 1988.

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Ontario. Ministry of Agriculture and Food. Pollination of Vine Crops. S.l: s.n, 1987.

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Free, John Brand. Insect pollination of crops. 2nd ed. London: Academic Press, 1993.

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Ontario. Ministry of Agriculture and Food. Honeybees for pollination of crops. S.l: s.n, 1989.

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International Symposium on Pollination (8th 2000 Mosonmagyaróvár, Hungary). Proceedings of the Eighth International Pollination Symposium: Pollination : integrator of crops and native plant systems. Edited by Benedek Pál Dr, Richards K. W, International Commission of Plant Bee Relationships., and International Society for Horticultural Science. Working Group on Pollination. Leuven, Belgium: ISHS, 2001.

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International Symposium on Pollination (8th 2000 Mosonmagyaróvár, Hungary). Proceedings of the Eighth International Pollination Symposium: Pollination : integrator of crops and native plant systems. Edited by Benedek Pál Dr, Richards K. W, International Commission of Plant Bee Relationships., and International Society for Horticultural Science. Working Group on Pollination. Leuven, Belgium: ISHS, 2001.

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Nabhan, Gary Paul. Cross-Pollinations: The Marriage of Science and Poetry. Minneapolis, USA: Milkweed Editions, 2004.

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Book chapters on the topic "Cross pollination"

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Fernández Peña, Emilio, Natividad Ramajo, and Adolfo Nieto. "A cross-pollination of fame?" In The Dynamics of Influencer Marketing, 143–64. London: Routledge, 2022. http://dx.doi.org/10.4324/9781003134176-9.

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Hemmann, Kathryn. "The Cultural Cross-Pollination of Shōjo Manga." In Manga Cultures and the Female Gaze, 147–69. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-18095-9_7.

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Craig, Cheryl J., Gayle A. Curtis, Michaelann Kelley, P. Tim Martindell, and M. Michael Pérez. "Relationships, Cross-Pollination, and Extended Collaborations (2002–Present)." In Knowledge Communities in Teacher Education, 205–21. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-54670-0_10.

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Zenkteler, M. "Self and Cross Pollination of Ovules in Test Tubes." In Current Issues in Plant Molecular and Cellular Biology, 191–99. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0307-7_25.

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Foley, Brenda. "“Stripping the Light Fantastic”: Historical Cross-Pollination in Staged Female Exposure." In Undressed for Success, 13–35. New York: Palgrave Macmillan US, 2005. http://dx.doi.org/10.1007/978-1-137-04089-3_2.

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Hessing, M. B. "Pollen Growth Following Self- and Cross-pollination in Geranium caespitosum James." In Biotechnology and Ecology of Pollen, 467–72. New York, NY: Springer New York, 1986. http://dx.doi.org/10.1007/978-1-4613-8622-3_75.

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Cowden, Richard G., Victor Counted, and Man Yee Ho. "Positive Psychology and Religion/Spirituality Across Cultures in Africa, Asia, and Oceania." In Handbook of Positive Psychology, Religion, and Spirituality, 243–59. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-10274-5_16.

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AbstractCulturally responsive cross-pollination of positive psychology (PP) and the psychology of religion/spirituality (PRS) has the potential to enrich both subfields and augment their impact. To strengthen the interaction of PP and the PRS beyond the traditional boundaries of the West, this chapter explores the current overlap between these two psychology subfields in Africa, Asia, and Oceania. After providing a brief overview of each region, we apply a systematic approach to identify and evaluate research that intersects PP and the PRS in each region. Our search revealed a total of 128 scholarly articles over the last three decades. Topical emphases were classified into three overarching themes: (a) well-being, (b) character strengths and virtues, and (c) positive adaptation. Although recent growth in publication outputs within each region is an encouraging sign for the next wave of research, the quality of the existing empirical evidence is limited by an overreliance on cross-sectional observational studies. We highlight some of the ways that culturally responsive cross-pollination of PP and the PRS could benefit people living in Africa, Asia, and Oceania. We also offer suggestions for broadening the scope and enhancing research that intersects both subfields in these culturally and religiously diverse regions.
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Huxley, Anna. "Communicating Climate Change Through Narratives: A Cross Pollination of Science and Theology." In Climate Change Management, 201–14. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-69838-0_13.

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Forbrig, Peter, and Anke Dittmar. "Cross-Pollination of Personas, User Stories, Use Cases and Business-Process Models." In Lecture Notes in Business Information Processing, 3–18. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-17728-6_1.

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Bernhaupt, Regina, Peter Forbrig, Jan Gulliksen, and Janet Wesson. "4th Workshop on Software and Usability Engineering Cross-Pollination: Usability Evaluation of Advanced Interfaces." In Human-Computer Interaction – INTERACT 2009, 954–56. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03658-3_128.

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Conference papers on the topic "Cross pollination"

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Marcelino, José Rui, and André castro. "Design Driven Innovation and Cross-Pollination." In SAE 2013 AeroTech Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2013. http://dx.doi.org/10.4271/2013-01-2308.

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Amyotte, Eric, and Marc-Andre Godin. "Antennas at MDA: Innovation through cross-pollination." In 2017 11th European Conference on Antennas and Propagation (EUCAP). IEEE, 2017. http://dx.doi.org/10.23919/eucap.2017.7928332.

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Fok, Wendy W. "Cross pollination of ideas: Design fabrication and experimentation." In CAADRIA 2012: Beyond Codes and Pixels. CAADRIA, 2012. http://dx.doi.org/10.52842/conf.caadria.2012.589.

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Fok, Wendy W. "Cross pollination of ideas: Design fabrication and experimentation." In CAADRIA 2012: Beyond Codes and Pixels. CAADRIA, 2012. http://dx.doi.org/10.52842/conf.caadria.2012.589.

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Eriksson, Susan C., and Naomi Ochwat. "PLACE-BASED JEWELRY: SOCIAL MEDIA FOR AUDIENCE CROSS-POLLINATION." In GSA Annual Meeting in Phoenix, Arizona, USA - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019am-340919.

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Dorina, Bonea. "THE CROSS-POLLINATION STUDY BETWEEN GENETICALLY MODIFIED AND CONVENTIONAL CORN CROPS IN ROMANIA." In 14th SGEM GeoConference on NANO, BIO AND GREEN � TECHNOLOGIES FOR A SUSTAINABLE FUTURE. Stef92 Technology, 2014. http://dx.doi.org/10.5593/sgem2014/b61/s25.071.

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Oliver, David, and Michael Haney. "Preparing the next cyber-resilient workforce through cross-pollination education." In 2017 Resilience Week (RWS). IEEE, 2017. http://dx.doi.org/10.1109/rweek.2017.8088646.

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Alexiou, Katerina. "Incubating civic leadership in design: The role of cross-pollination spaces." In DRS2022: Bilbao. Design Research Society, 2022. http://dx.doi.org/10.21606/drs.2022.575.

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Savinkova, N. V., and et al. "Selection of the best options for cross-pollination among honeysuckle varieties of Bakchar selection." In Botanical Gardens as Centers for Study and Conservation of Phyto-Diversity. TSU Press, 2020. http://dx.doi.org/10.17223/978-5-94621-956-3-2020-52.

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Jain, Paridhi, Tiago Rodrigues, Gabriel Magno, Ponnurangam Kumaraguru, and Virgilio Almeida. "Cross-Pollination of Information in Online Social Media: A Case Study on Popular Social Networks." In 2011 IEEE Third Int'l Conference on Privacy, Security, Risk and Trust (PASSAT) / 2011 IEEE Third Int'l Conference on Social Computing (SocialCom). IEEE, 2011. http://dx.doi.org/10.1109/passat/socialcom.2011.182.

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Reports on the topic "Cross pollination"

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Degani, Chemda, Robert Knight, Jr., Shmuel Gazit, and Raymond Schnell. Self- and Cross Pollination in Mango. United States Department of Agriculture, November 1995. http://dx.doi.org/10.32747/1995.7604295.bard.

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Loper, Gerald, Dan Eisikowitch, Gloria DeGrandi-Hoffman, and Stephen Buchmann. Optimizing Production of Self-Incompatible Crops Using Cross Pollination and Seed Set Models. United States Department of Agriculture, June 1991. http://dx.doi.org/10.32747/1991.7599657.bard.

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Stankovic, Mirjana, and Nikola Neftenov. Cross Pollination and Digitalization of Public Sector Data: Opportunities and Challenges. Inter-American Development Bank, August 2022. http://dx.doi.org/10.18235/0004355.

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This report aims to aid governments in Latin America and the Caribbean in embracing the opportunities public sector data utilization and artificial intelligence (AI) deployment can provide in achieving a circular economy model and the UNs Sustainable Development Goals (SDGs). For such purpose, the report provides a novel concept of sharing data between key players that we have named data cross-pollination. Drawing on this concept, it considers four SDGs, i.e., energy, sustainable food systems, reducing pollution, and smart cities. Building on case studies and initiatives, the report highlights the main challenges and opportunities of utilizing data to achieve a circular economy model and sustainable development. It also looks into the potential of AI to enrich such data cross-pollination and focuses on potential applications of AI in circular innovation that can be transposed in the public sector.
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Arpaia, Mary Lu, Sharoni Shafir, Thomas Davenport, and Arnon Dag. Enhancement of avocado pollination and productivity - an interdisciplinary approach. United States Department of Agriculture, January 2007. http://dx.doi.org/10.32747/2007.7695882.bard.

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The original objective was to determine the impact of temperature on floral behavior and pollen tube growth and humidity on the proportions of self-, close, and cross-pollinated avocado fruit on trees growing in humid, coastal and dry, inland CA climates. Because self-pollination was demonstrated to be the prevailing mode of pollination in Florida cultivars in warm humid conditions, it was appropriate to determine if similar rates of self-pollination occur in a dry Mediterranean climate present in California. The conclusions of the work were that despite limiting cool temperatures present in Ventura County, where the research was conducted, self-pollination within Stage 2 flowers is the dominant mode of pollination at both the humid and dry sites. Moreover, it was determined that pollen transfer is mediated by wind and bees have a negligible role in pollen transfer. Temperatures that are marginally warm enough to allow somewhat normal floral opening and closing behavior are still insufficient to provide pollen tube growth to the ovule before abscission of the flower. These results provide the basis for understanding why growers utilizing solid block avocado plantings achieve good yields without bees.
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Adelberg, Jeff, Halina Skorupska, Bill Rhodes, Yigal Cohen, and Rafael Perl-Treves. Interploid Hybridization of Cucumis melo and C. metuliferus. United States Department of Agriculture, December 1999. http://dx.doi.org/10.32747/1999.7580673.bard.

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The long-term motivation for this research is to transfer useful traits from a broad based gene pool of wild species into the narrow base of a cultivated crop in Cucumis. Our primary focus was to use polyploid prior to fertilization as a tool to overcome fertility barriers in the cross between C. melo and C. metuliferus. In conducting this research, we explored all combinations of tetraploid and diploid parents, in reciprocal combinations. Pollinations were made in both the field and greenhouse, using emasculated flowers, moneocious females, and open pollination by insect vectors, with morphological selection criteria. After observations of thousands of ovaries, we still have no definitive proof that this hybridization yielded viable embryos. The most promising results came from using tetraploid C. metuliferus, as the maternal parent in the interspecific hybridization, that set fruit were seeds contained small embryos that did not germinate. To obtain fruit set, it was important to rear plants in a cooler sunny greenhouse, as would be found in late winter/early spring. A second interspecific hybrid between wild and cultivated Cucumis, C. hystrix x C. sativus, yielded fertile progeny for the first time, while concomitantly working toward our primary goal. Two distinct treatments were necessary; 1) special plant husbandry was necessary to have the wild species produce fruit in cultivation, and 2) embryo rescue followed by chromosome doubling in vitro was required for fertility restoration. Backcrosses to crop species and resistance to nematodes are compelling areas for further work.
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Susan Waters, Susan Waters. Urban Pollination: sustain native bees & urban crops. Experiment, August 2012. http://dx.doi.org/10.18258/0038.

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Partap, U. Pollination Management of Mountain Crops through Beekeeping - Trainers' Resource Book. Kathmandu, Nepal: International Centre for Integrated Mountain Development (ICIMOD), 2000. http://dx.doi.org/10.53055/icimod.360.

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Partap, U. Pollination Management of Mountain Crops through Beekeeping - Trainers' Resource Book. Kathmandu, Nepal: International Centre for Integrated Mountain Development (ICIMOD), 1999. http://dx.doi.org/10.53055/icimod.322.

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Partap, U. Pollination Management of Mountain Crops through Beekeeping - Trainers' Resource Book. Kathmandu, Nepal: International Centre for Integrated Mountain Development (ICIMOD), 2000. http://dx.doi.org/10.53055/icimod.360.

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Partap, U. Pollination Management of Mountain Crops through Beekeeping - Trainers' Resource Book. Kathmandu, Nepal: International Centre for Integrated Mountain Development (ICIMOD), 1999. http://dx.doi.org/10.53055/icimod.322.

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