Interspecific hybridization and hybrid seed yield of winter squash (Cucurbita maxima Duch.) and pumpkin (Cucurbita moschata Duch.) lines for rootstock breeding

Karaağaç, Onur; Balkaya, Ahmet

doi:10.1016/j.scienta.2012.10.021

Cited by 41 publications

(27 citation statements)

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“…Twenty interspecific combinations between C. maxima and C. moschata (including reciprocal) were made successfully and were produced fruits and normal seeds (Tables 1 and 2). These results confirm that interspecific crosses could be obtained between C. maxima and C. moschata (Karaagac and Balkaya, 2012), which can be used as rootstocks for grafting watermelon and cucumber scions, providing high level of tolerance and resistance against salinity, low temperatures soil, and soil-borne disease (Lee, 2003;Passam, 2003;King et al, 2008;Huitron-Ramırez et al, 2009;Karaagac and Balkaya, 2012). Fruit set percentage was variable in interspecific combinations depending on the direction of the hybridization of C. maxima lines involved.…”

Section: Resultssupporting

confidence: 87%

“…Interestingly, seed germination rates were ≥ 80% in the most promising interspecific hybrids for hybrid seed production. Conversely, Karaagac and Balkaya (2012) have reported seed germination rates of the promising interspecific hybrids were not high which could be due to embryo or endosperm failure in the interspecific hybrid combinations. These results suggest that plant genotype is an important factor which can have a profound effect on the success of interspecific crosses, seed production and germination (Karaagac and Balkaya, 2012;Plazas et al, 2016).…”

Section: Resultsmentioning

confidence: 94%

“…Conversely, very low fruit set percentage (33.3%) and fruit set percentage with normal seeds (5.5%) was obtained when C. moschata (Alseiny) was used as male parent and crossed with C. maxima MAX3. Other studies have also succeed to obtain interspecific hybrid plants from the crosses between C. pepo, C. maxima, and C. moschata (Baggett, 1979;Korakot et al, 2010;Karaagac and Balkaya, 2012;Rakha et al 2012;Zhang et al, 2012). Whitaker and Davis (1962) summarized that C. moschata occupies a central position among Cucurbita species and can be crossed with some difficulties with C. pepo, C. maxima, and C. mixta.…”

Section: Resultsmentioning

confidence: 99%

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Interspecific Hybridization between Cucurbita Maxima Duch. and Cucurbita Moschata Duch. for High Efficient Development of Cucurbit Rootstocks

Rakha

2017

Journal of Plant Production

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Interspecific hybrids between Cucurbita maxima and C. moschata have been commonly used as a rootstock for watermelon, melon, and cucumber, as well as to develop new Cucurbit types and widen the genetic variation. In this study, 218 interspecific hybridizations were performed between C. moschata (Alseiny) and ten lines of C. maxima. C. moschata (Alseiny) was successfully crossed with all ten lines of C. maxima resulted 20 interspecific hybrid combinations (including reciprocal) and fruit set, hybrid normal seed and seed germination was obtained. Fruit set and hybrid seed was generally higher in interspecific hybrid combinations when C. moschata (Alseiny) used as maternal parent, with the exception of hybridizations involved C. maxima MAX5 and MAX7. The highest fruit set percentage with normal seeds was obtained in interspecific hybrid MAX5 X Alseiny (86.6%), followed by Alseiny X MAX14 (83.3%). In addition, interspecific hybrid combinations Alseiny X MAX20, MAX2 X Alseiny, MAX5 X Alseiny gave the higher hybrid seed number and weight per fruit. Overall, interspecific hybrid MAX5 X Alseiny was the most promising combination for fruit setting and hybrid seed yield. Success in production of interspecific hybrid seeds and germination could be promising for cucurbit rootstock production in Egypt.

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Section: Resultssupporting

confidence: 87%

Section: Resultsmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 99%

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Interspecific Hybridization between Cucurbita Maxima Duch. and Cucurbita Moschata Duch. for High Efficient Development of Cucurbit Rootstocks

Rakha

2017

Journal of Plant Production

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“…The selection practised over time by these populations, associated with the exchange of seeds between them, and the natural occurrence of hybridization in the germplasm of this species has contributed to the increase in its variability. The high variability displayed by C. moschata for agronomic, nutritional and bioactive characteristics and the intercrossability of the Cucurbita species has enabled the transfer of these characteristics from C. moschata to other species of this genus [24, 25, 26, 27]. This is something strategic and may aid the worldwide cultivation of species of the Cucurbita genus.…”

Section: Introductionmentioning

confidence: 99%

Germplasm of Brazilian winter squash (Cucurbita moschataD.) displays vast genetic variability, allowing identification of promising genotypes for agro-morphological traits

Gomes

Júnior

Almeida

et al. 2020

Preprint

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13Winter squash fruits (Cucurbita moschata D.) are among the best sources of vitamin A 14 precursors and constitute sources of bioactive components such as phenolic compounds and 15 flavonoids. Approximately 70% of C. moschata seed oil is made up of unsaturated fatty acids, 16 with high levels of monounsaturated fatty acids and components such as vitamin E and 17 carotenoids, which represent a promising nutritional aspect in the production of this vegetable. 18C. moschata germplasm expresses high genetic variability, especially in Brazil. We assessed 91 19 C. moschata accessions, from different regions of Brazil, and maintained at the UFV Vegetable 20 Germplasm Bank, to identify early-flowering accessions with high levels of carotenoids in the 21 fruit pulp and high yields of seed and seed oil. Results showed that the accessions have high 22 variability in the number and mass of seeds per fruit, number of accumulated degree-days for 23 flowering, total carotenoid content, and fruit productivity, which allowed selection for 24 considerable gains in these characteristics. Analysis of the correlation between these 25 characteristics provided information that will assist in selection to improve this crop. Cluster 26 analysis resulted in the formation of 16 groups, confirming the variability of the accessions. Per 27 se analysis identified accessions BGH-6749, BGH-5639, and BGH-219 as those with the earliest 28flowering. Accessions BGH-5455A and BGH-5598A had the highest carotenoid content, with 29 averages greater than 170.00 μg g -1 of fresh mass. With a productivity of 0.13 t ha -1 , accessions 30 BGH-5485A, BGH-4610A, and BGH-5472A were the most promising for seed oil production. 31These last two accessions corresponded to those with higher seed productivity, averaging 0.58 2 32 and 0.54 t ha -1 , respectively. This study confirms the high potential of this germplasm for use in 33 breeding for promotion of earlier flowering and increase in total carotenoid content of the fruit 34 pulp and in seed and seed oil productivity. 35 36 38 39 3 65 making this crop fundamental for ensuring healthier diets and promoting food security in the 66 regions where it is grown, particularly in less developed regions and in the context of family-67 based farming. 68 Associated with its socio-economic importance, C. moschata germplasm commonly expresses 69 high genetic variability in all regions where it occurs [15, 16, 17], especially in Brazil [18, 19, 70 20]. Archaeological evidence indicates that this species was present in Latin America prior to 71 colonisation, and appears to have already been an important component in the diet of the native 72 peoples living there [21, 22, 23]. Currently, the variability of this vegetable in Brazil is closely 73 tied to the human populations involved in its cultivation, who are predominantly family-based 74 farmers. The selection practised over time by these populations, associated with the exchange of 75 seeds between them, and the natural occurrence of hybridization in the germplasm of th...

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“…A melhor expressão de afinidade genética entre acessos foi definida pela característica número de sementes normais por fruto e que diferiu amplamente de acordo com as linhagens empregadas nos experimentos. Resultados semelhantes foram obtidos por Karaağaç & Balkaya (2013) em avaliações envolvendo diferentes combinações interespecíficas entre linhagens de C. maxima e C. moschata. Os cruzamentos entre acessos dessas duas espécies apresentaram distintos graus de fertilização de acordo com a estrutura genética das linhagens utilizadas no processo de hibridação (Karaağaç & Balkaya, 2013).…”

Section: Introductionunclassified

Desempenho agronômico de híbridos experimentais de abóbora Tetsukabuto para características dos frutos

et al. 2017

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RESUMO O cultivo de abóboras (Cucurbita moschata) e morangas (Cucurbita maxima) apresenta grande importância econômica e social no Brasil. Nas últimas décadas, a região do Brasil Central tem se consolidado como um polo emergente de cultivo e comercialização dessas hortaliças. Dentre as cultivares mais comercializadas no país se destaca o híbrido interespecífico conhecido como ‘Tetsukabuto’ ou ‘Cabotiá’ originado entre o cruzamento de uma linhagem feminina de C. maxima com uma linhagem masculina de C. moschata. O objetivo do trabalho foi avaliar o desempenho agronômico de híbridos experimentais interespecíficos tipo Tetsukabuto em condições do Planalto Central do Brasil por meio da avaliação direta e a correlação entre as características dos frutos. Foi avaliado um conjunto de 35 combinações híbridas interespecíficas (C. maxima x C. moschata), empregando como linhagem maternal elite a moranga CNPH 0739 que foi cruzada com uma coleção de 35 linhagens de abóboras. O experimento foi conduzido em condições de campo em Brasília-DF. Foram avaliados a produtividade total de frutos, o número de frutos por planta, massa média de frutos, comprimento e largura dos frutos, teor de sólidos solúveis, espessura da polpa e da casca dos frutos. O rendimento foi positivamente correlacionado com maior número de frutos por planta, maior massa, maior espessura de polpa e maior largura de frutos. Plantas com frutos de maior massa apresentaram menores teores de sólidos solúveis. O híbrido experimental CNPH 2377 destacou-se para as características avaliadas e apresentou alta produtividade de frutos com 21,98 t/ha, com peso médio acima de 3 kg, cerca de 4 frutos por planta, com polpa espessa (34,41 mm), casca fina (2,17 mm) e razoável teor de sólidos solúveis (17,01°Brix). Assim, a maior produtividade foi cerca de duas vezes superior àquela do híbrido Jabras (testemunha comercial). Neste contexto, os resultados, obtidos no presente experimento, indicam boas perspectivas no sentido de se obter materiais genéticos do segmento varietal Tetsukabuto, combinando características agronômicas de interesse e melhor aptidão para o cultivo no Brasil Central.

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Interspecific hybridization and hybrid seed yield of winter squash (Cucurbita maxima Duch.) and pumpkin (Cucurbita moschata Duch.) lines for rootstock breeding

Cited by 41 publications

References 11 publications

Interspecific Hybridization between Cucurbita Maxima Duch. and Cucurbita Moschata Duch. for High Efficient Development of Cucurbit Rootstocks

Interspecific Hybridization between Cucurbita Maxima Duch. and Cucurbita Moschata Duch. for High Efficient Development of Cucurbit Rootstocks

Germplasm of Brazilian winter squash (Cucurbita moschataD.) displays vast genetic variability, allowing identification of promising genotypes for agro-morphological traits

Desempenho agronômico de híbridos experimentais de abóbora Tetsukabuto para características dos frutos

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