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Fruit quality assessment of watermelons grafted onto citron melon rootstock
Author(s) -
Fredes Alejandro,
Roselló Salvador,
Beltrán Joaquim,
CebollaCornejo Jaime,
PérezdeCastro Ana,
Gisbert Carmina,
Picó María Belén
Publication year - 2016
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.7915
Subject(s) - melon , rootstock , horticulture , quality (philosophy) , quality assessment , biology , engineering , evaluation methods , philosophy , epistemology , reliability engineering
Abstract BACKGROUND The grafting of watermelons ( Citrullus lanatus ) is a common technique that increases yield 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. RESULTS Citron 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 non‐grafted watermelons, except for an increase in glucose and malic acid content, which also occurred in the Cucurbita rootstocks. The aroma profile of fruits produced on citron melon was similar to that of the non‐grafted and self‐grafted controls. The citron rootstock did not display the increased levels of ( Z )‐6‐nonen‐1‐ol (a compound associated with pumpkin‐like odors) found in fruits produced with Cucurbita hybrids. CONCLUSION The 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. © 2016 Society of Chemical Industry