Taxa de sobrevivência e desempenho agronômico de melancia sob enxertia

Gama, R. N. C. de S.; Dias, R. de C. S.; Alves, J. C. da S. F.; Damaceno, L. S.; Teixeira, F. A.; Barbosa, G. da S.

doi:10.1590/s0102-05362013000100020

Cited by 9 publications

(8 citation statements)

References 8 publications

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“…The development of flesh color might also be associated with the ripening stage. Variable effects of rootstocks on watermelon flesh color have been reported . Our results showed a certain reduction in the redness and yellowness of flesh color, which affected both the self‐grafted and the Cucurbita ‐grafted plants, whereas the citron melon rootstocks resulted in a more similar color profile to that of the non‐grafted control.…”

Section: Discussionsupporting

confidence: 47%

Fruit quality assessment of watermelons grafted onto citron melon rootstock

et al. 2016

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BACKGROUNDThe grafting of watermelons (Citrullus lanatus) is a common technique that increases yields under stressful soil conditions. The most common rootstocks for watermelons are Cucurbita hybrids. However, they often have a negative impact on fruit quality.Exploiting novel Citrullus germplasm, such as citron melon (Citrullus lanatus var. citroides), is an alternative to avoid these quality problems. RESULTSCitron melon has been validated as watermelon rootstock, comparing its effects on watermelon quality to those of Cucurbita hybrids. Larger fruits with thicker rinds were observed in fruits from plants grafted onto both citron and Cucurbita rootstocks. The citron melon had no significant effect on flesh sugars or acid profiles compared to nongrafted watermelons, except for an increase in glucose and malic acid content, which also occurred in the Cucurbita rootstocks. The aroma profile of fruits produced onto citron melon was similar to that of the non-grafted and self-grafted controls. The citron rootstock didn't display the increased levels of (Z)-6-nonen-1-ol (a compound associated with pumpkin-like odors) found in fruits produced with Cucurbita hybrids. CONCLUSIONThe low impact of citron melon rootstock on fruit quality along with the enhanced resistance against nematodes, make the citron a promising alternative to Cucurbita rootstocks. KeywordsCitrullus lanatus; fruit quality; grafting; aroma profile This article is protected by copyright. All rights reserved. The most common commercial rootstocks for watermelons are Cucurbita interspecific hybrids (C. moschata Duchesne x C. maxima Duchesne) and bottle gourd accessions (Lagenaria siceraria Standl). These rootstocks confer resistance to most of the soilborne fungi affecting watermelon. However, they are susceptible to root-knot nematodes (RKN, Meloidogyne spp.). 4 These pathogens cause extensive damage to watermelon roots and increase the severity of Fusarium wilt in watermelon fields. RKNs used to be controlled in watermelon by fumigation with methyl bromide. However, the removal of methyl bromide from the markets has resulted in an increase of the impact of RKNs on watermelon and other cucurbit crops, as the alternative treatments are less effective than this fumigant. 5This situation has caused a spike in the search for resistances in other Cucurbitaceae genera that could lead to the development of alternative rootstock suitable for managing root-knot nematodes in watermelon crops. Some species belonging to the Cucumis A 5-cm cross section was obtained from the equatorial plane of each of four fruits per replication (sixteen fruits per treatment). Pericarp and approximately 2 mm of flesh and seeds were discarded. The remaining flesh was homogenized (KRUPS KB720, Groupe Seb Iberica, Barcelona, Spain) and kept frozen at -80ºC until metabolite analysis. Reagents for metabolite analysisOrganic acid standards were prepared from their sodium salts or free acids. The chemicals used were of analytical grade and were purchased from Sigma (St. Louis, MO, USA)....

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Section: Discussionsupporting

confidence: 47%

Fruit quality assessment of watermelons grafted onto citron melon rootstock

et al. 2016

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“…However, the spatial distribution of the soluble solids content in the pulp is varied, being higher in the central region, with gradual reduction as it approaches the peel. These values depend on the environmental conditions, since excess water in the final stage of the cycle can result in slightly sweet fruits resulting from the higher dilution of the sugars (Gama et al 2013).…”

Section: Discussionmentioning

confidence: 99%

Responses of forage watermelon genotypes submitted to different water supply

Ribeiro

Voltolini

Simões

et al. 2019

Biological Rhythm Research

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This study aimed to evaluate yield and physiological traits of plants and bromatological and morphological responses of fruits of forage watermelon genotypes under different water supply. Seven genotypes were used (BGCIA 228; BGCIA 239; Jojoba; BGCIA 228 x BGCIA239; BGCIA 228 x Jojoba; BGCIA 239 x Jojoba and BGCIA 991) and four water supplies (470; 370; 270 and 170 mm) during the crop cycle. The experimental design was a complete randomized blocks organized in split plots and in a 7 × 4 factorial arrangement with three replications. The photosynthesis, transpiration, stomatal conductance and leaf temperature were not affected by genotypes. Applying 170 mm of WS promoted lower photosynthesis (p = 0.0001), stomatal conductance (p = 0.0001), transpiration (p = 0.0001) and greater leaf temperature (p = 0.0084). Jojoba presented greater fruit weight (p = 0.03), plant yield (p = 0.02), fruit length (p = 0.01) and longitudinal diameter (p = 0.01) in comparison to BGCIA 228. Applying 270 mm of WS decreased DM (p < 0.0001) and 170 mm of WS increased ADF (p = 0.01). Genotype BGCIA 228 presented greater total carbohydrates (p = 0.03) and total soluble solids contents (p = 0.01), lower ether extract (p < 0.0001) and ADF (p = 0.006) compared to BGCIA 239. Water supply affects physiological and bromatological responses, and the genotypes promote differences in yield, bromatogical and morphological characteristics of forage watermelon.

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“…The development of flesh color might also be associated with the ripening stage. Variable effects of rootstocks on watermelon flesh color have been reported (Davis & Perkins-Veazie, 2005;Gama et al, 2013;Soteriou et al, 2014). Our results showed a certain reduction in the redness and yellowness of flesh color, which affected both the self-grafted and the Cucurbita-grafted plants, whereas the citron melon rootstocks resulted in a more similar color profile to that of the non-grafted control.…”

Section: Discussionsupporting

confidence: 67%

“…Cucurbita hybrids reduced the content of the two acids. There are limited studies on the modification of watermelons' acidic profile as a consequence of grafting, and most indicate higher titratable acidity in fruits from grafted plants (Gama et al, 2013;Soteriou et al, 2014).…”

Section: Capítulomentioning

confidence: 99%

Desarrollo de métodos de fenotipado de aroma en sandía y melón y su aplicación a la evaluación de líneas de mejora de portainjertos

Sivoplás¹,

David²

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Taxa de sobrevivência e desempenho agronômico de melancia sob enxertia

Cited by 9 publications

References 8 publications

Fruit quality assessment of watermelons grafted onto citron melon rootstock

Fruit quality assessment of watermelons grafted onto citron melon rootstock

Responses of forage watermelon genotypes submitted to different water supply

Desarrollo de métodos de fenotipado de aroma en sandía y melón y su aplicación a la evaluación de líneas de mejora de portainjertos

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