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Journal articles on the topic 'Cucurbita pepo ovifera var ovifera'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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1

Gent, Martin P. N., Zakia D. Parrish, and Jason C. White. "Nutrient Uptake among Subspecies of Cucurbita pepo L. Is Related to Exudation of Citric Acid." Journal of the American Society for Horticultural Science 130, no. 5 (2005): 782–88. http://dx.doi.org/10.21273/jashs.130.5.782.

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Exudation of organic acids by roots has been implicated in uptake of minerals from soil. Three cultivars within each of two subspecies of summer squash (Cucurbita pepo ssp. ovifera D. S. Decker var. ovifera and C. pepo ssp. pepo var. pepo) were grown in the field. Plants of ssp. pepo had higher concentrations of K, P, and Zn than those of ssp. ovifera. These same cultivars were grown under P sufficient and depleted conditions in hydroponics, to measure exudation of organic acids from roots. When grown in hydroponics, tissues of ssp. ovifera had similar or higher concentrations of nutrients tha
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2

Justin, Kalmobé, Ndjonka Dieudonné, Vildina Dikti Jacqueline, and Liebau Eva. "Antifilarial Activity of Cucurbita pepo ovifera var ovifera (Cucurbitaceae) on Onchocerca ochengi Adult Worms." British Journal of Pharmaceutical Research 17, no. 2 (2017): 1–8. https://doi.org/10.9734/BJPR/2017/33381.

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One of the strategies for developing novel pharmaceutical drugs is to use natural sources such as plants for therapeutic treatment. Plant extracts are a cocktail of compounds which act synergically and can improve treatment effectiveness, reduce therapeutic duration and resistance. The ethanolic extracts of leaves and seeds of <em>Cucurbita pepo ovifera</em> <em>var</em> <em>ovifera</em> from Sudano-Guinean and Sudano-Sahelian zones of Cameroon were evaluated on the cattle parasite nematode <em>Onchocerca</em><em> ochengi</em>. Worms were incubated with different concentrations of the plant ex
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3

Kalmobé, Justin, Dieudonné Ndjonka, Jacqueline Dikti, and Eva Liebau. "Antifilarial Activity of Cucurbita pepo ovifera var ovifera (Cucurbitaceae) on Onchocerca ochengi Adult Worms." British Journal of Pharmaceutical Research 17, no. 2 (2017): 1–8. http://dx.doi.org/10.9734/bjpr/2017/33381.

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4

Decker, Deena S., and Hugh D. Wilson. "Allozyme Variation in the Cucurbita pepo Complex: C. pepo var. Ovifera vs. C. texana." Systematic Botany 12, no. 2 (1987): 263. http://dx.doi.org/10.2307/2419320.

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5

Dalda-Şekerci, Akife, Kevser Karaman, and Halit Yetişir. "Characterization of ornamental pumpkin (Cucurbita pepo L. var. ovifera (L.) Alef.) genotypes: molecular, morphological and nutritional properties." Genetic Resources and Crop Evolution 67, no. 3 (2020): 533–47. http://dx.doi.org/10.1007/s10722-020-00883-x.

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6

Sekerci, Akife Dalda, Kevser Karaman, Halit Yetisir, and Osman Sagdic. "Change in morphological properties and fatty acid composition of ornamental pumpkin seeds (Cucurbita pepo var. ovifera) and their classification by chemometric analysis." Journal of Food Measurement and Characterization 11, no. 3 (2017): 1306–14. http://dx.doi.org/10.1007/s11694-017-9508-3.

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7

Ermiş, Sıtkı, Uğur Ercan, Aylin Kabaş, Önder Kabaş, and Georgiana Moiceanu. "Machine Learning-Based Morphological Classification and Diversity Analysis of Ornamental Pumpkin Seeds." Foods 14, no. 9 (2025): 1498. https://doi.org/10.3390/foods14091498.

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Ornamental pumpkin (Cucurbita pepo L. var. ovifera) seeds are highly morphologically variable, and their classification is hence a complex task for the seed industry. Efficient and accurate classification is critical for agricultural production, breeding programs, and seed sorting for commerce. This study employs machine learning models—Random Forest (RF), LightGBM, and k-Nearest Neighbors (KNN)—to classify ornamental pumpkin seeds based on their morphological (mass, elongation, width, thickness) and colorimetric characteristics (L*, a*, b* values from CIELAB color space). Prior to model train
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8

Castellanos-Morales, Gabriela, Karen Y. Ruiz-Mondragón, Helena S. Hernández-Rosales, et al. "Tracing back the origin of pumpkins ( Cucurbita pepo ssp. pepo L.) in Mexico." Proceedings of the Royal Society B: Biological Sciences 286, no. 1908 (2019): 20191440. http://dx.doi.org/10.1098/rspb.2019.1440.

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Cucurbita pepo is an economically important crop, which consists of cultivated C. pepo ssp. pepo , and two wild taxa ( C. pepo ssp. fraterna and C. pepo ssp. ovifera ) . We aimed at understanding the domestication and the diversity of C. pepo in Mexico. We used two chloroplast regions and nine nuclear microsatellite loci to assess the levels of genetic variation and structure for C. pepo ssp. pepo 's landraces sampled in 13 locations in Mexico, five improved varieties, one C. pepo ssp. fraterna population and ornamental C. pepo ssp. ovifera . We tested four hypotheses regarding the origin of C
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9

Krasnow, Charles S., Raymond Hammerschmidt, and Mary K. Hausbeck. "Characteristics of Resistance to Phytophthora Root and Crown Rot in Cucurbita pepo." Plant Disease 101, no. 5 (2017): 659–65. http://dx.doi.org/10.1094/pdis-06-16-0867-re.

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Root and crown rot incited by Phytophthora capsici causes considerable annual losses in squash-producing regions in the United States. ‘Spineless Perfection’ zucchini and ‘Cougar’ straightneck squash (Cucurbita pepo L.), partially resistant and susceptible to root and crown rot, respectively, were investigated for differences in root and crown physical factors and the histology of crown infection by P. capsici. The pH and titratable acidity of healthy root and crown tissue from tissue extracts were not significantly different between cultivars (P = 0.05). Crude fiber content (%) of blended and
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10

Decker-Walters, D. S., T. W. Walters, U. Posluszny, and P. G. Kevan. "Genealogy and gene flow among annual domesticated species of Cucurbita." Canadian Journal of Botany 68, no. 4 (1990): 782–89. http://dx.doi.org/10.1139/b90-104.

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Over the years, workers have gathered data from various sources in the attempt to understand the evolutionary histories and relationships of the domesticated members of Cucurbita. We used allozyme data to address questions of genealogy, interspecific gene flow, and allelic diversity for 23 commercial cultivars and 17 indigenous landraces of C. maxima, C. mixta, C. moschata, and C. pepo. Allelic diversity was greatest in C. pepo (especially ssp. ovifera) and C. moschata, reflecting complex histories for these taxa. Cucurbita maxima and C. mixta were relatively homogeneous despite morphological
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11

Fritz, Gayle J. "Gender and the Early Cultivation of Gourds in Eastern North America." American Antiquity 64, no. 3 (1999): 417–29. http://dx.doi.org/10.2307/2694142.

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Discovery and AMS dating of mid-Holocene Cucurbita pepo fragments from central Maine and north-central Pennsylvania necessitate the reevaluation of the status of the earliest gourds in noncoastal areas of the Eastern Woodlands and the role of women in their cultivation. Gourds may have been spread initially in conjunction with improvements in fishing techniques, with small gourds used primarily as net floats. In this scenario, people passed temperate, Eastern (ovifera-type) gourds northward from the coastal plains of the Southeast into river valleys of the Midwest and Northeast as fishing beca
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12

Verdejo‐Lucas, S., P. Gómez, and M. Talavera. "Pathogenicity of Meloidogyne incognita and M. javanica on recombinant inbred lines from a crossing of Cucurbita pepo subsp. pepo × C. pepo subsp. ovifera." Plant Pathology 68, no. 6 (2019): 1225–32. http://dx.doi.org/10.1111/ppa.13025.

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13

Domblides, Elena, Alexey Ermolaev, Sergey Belov, Lyudmila Kan, Mikhail Skaptsov, and Arthur Domblides. "Efficient Methods for Evaluation on Ploidy Level of Cucurbita pepo L. Regenerant Plants Obtained in Unpollinated Ovule Culture In Vitro." Horticulturae 8, no. 11 (2022): 1083. http://dx.doi.org/10.3390/horticulturae8111083.

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An important stage in doubled haploid (DH) production is to evaluate and to differentiate the ploidy level of regenerant plants at least two–three times during the technology. Therefore, rapid and reliable methods are necessary for particular species taken into the technology. In this study, Cucurbita pepo regenerants obtained through unpollinated ovule culture in vitro were evaluated including three different methods: direct chromosome counting in apical meristems, flow cytometry of the cell nucleus, and estimation of morphological parameters of the abaxial epidermis. Methods were optimized f
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14

Coolong, Timothy. "Performance of Paper Mulches Using a Mechanical Plastic Layer and Water Wheel Transplanter for the Production of Summer Squash." HortTechnology 20, no. 2 (2010): 319–24. http://dx.doi.org/10.21273/horttech.20.2.319.

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Polyethylene mulches are widely used in vegetable production. Advantages include improving yields, controlling weeds, and enhancing quality. However, the removal and disposal of plastic mulch used for vegetable production represents a significant financial cost for farmers and can be detrimental to the environment. A study was conducted in Fall 2007 and Spring 2008 evaluating the performance of paper mulches for the production of summer squash (Cucurbita pepo ssp. ovifera) ‘Conqueror III’. Four paper mulches, 50-lb kraft paper, 50-lb polyethylene-coated kraft paper, 40-lb white butcher paper,
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15

Vučurović, A., A. Bulajić, I. Stanković, et al. "First Report of the Occurrence of Cucurbit aphid-borne yellows virus on Oilseed Pumpkin in Serbia." Plant Disease 95, no. 8 (2011): 1035. http://dx.doi.org/10.1094/pdis-02-11-0147.

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In July 2008, field-grown oilseed pumpkins (Cucurbita pepo L. ‘Olinka’) showing severe yellowing and thickening of older leaves were observed in the Kisač locality of Vojvodina Province, Serbia. Symptomatic plants were found only near the borders of the field. Leaf samples collected from 15 symptomatic plants were tested for the presence of four viruses causing the cucurbit yellowing disorder. Total RNAs were extracted from deep frozen plant materials with an RNeasy Plant Mini Kit (Qiagen, Hilden, Germany) and reverse transcription (RT)-PCR was conducted with the OneStep RT-PCR Kit (Qiagen) fo
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16

Martínez-González, Carmina, Gabriela Castellanos-Morales, Josué Barrera-Redondo, et al. "Recent and Historical Gene Flow in Cultivars, Landraces, and a Wild Taxon of Cucurbita pepo in Mexico." Frontiers in Ecology and Evolution 9 (May 28, 2021). http://dx.doi.org/10.3389/fevo.2021.656051.

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Gene flow among crops and their wild relatives is an active study area in evolutionary biology and horticulture, because genetic exchange between them may impact their evolutionary trajectories and increase the genetic variation of the cultivated lineages. Mexico is a center of diversity for the genus Cucurbita that includes pumpkins, squash and gourds. Gene flow between domesticated and wild species has been reported as common in Cucurbita; but gene flow among populations of C. pepo ssp. pepo from Mexico and its wild relative has not been studied. We used 2,061 SNPs, derived from tunable geno
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17

Wyatt, Lindsay E., Susan R. Strickler, Lukas A. Mueller, and Michael Mazourek. "An acorn squash (Cucurbita pepo ssp. ovifera) fruit and seed transcriptome as a resource for the study of fruit traits in Cucurbita." Horticulture Research 2, no. 1 (2015). http://dx.doi.org/10.1038/hortres.2014.70.

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18

Saleh, Aml S., Samah A. El-Newary, Walaa A. Mohamed, Abdelbaset M. Elgamal, and Mona A. Farah. "Pumpkin seeds (Cucurbita pepo subsp. ovifera) decoction promotes Trichinella spiralis expulsion during intestinal phase via “Weep and Sweep” mechanism." Scientific Reports 14, no. 1 (2024). http://dx.doi.org/10.1038/s41598-024-51616-4.

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AbstractTrichinosis is a zoonotic disease of communal health concern as it instigated human outbreaks in several countries. Besides, the development of resistance, traditional therapy has numerous antagonistic effects. Thereby, finding efficient natural alternatives is required. In comparison to albendazole, this study evaluated the impact of pumpkin decoction on Trichinella spiralis in experimentally infected mice. The anthelmintic action of pumpkin decoction (500 mg/kg) was determined using T. spiralis infected mice in enteric phase for 5 days. Pumpkin decoction anthelmintic activity fortifi
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