Inheritance of Nutritional and Sensory Quality Traits in Fresh Market Tomato and Relation to Consumer Preferences

Abstract

In order to analyze the genetic control of fresh-market tomato quality, the genetic variation of quality attributes was analyzed in 45 hybrids and their 13 parental lines, grown in 2 contrasted environments. Fruit quality was assessed by physical measurements, fruit composition, and sensory analyses (descriptive analysis by a trained panel and hedonic tests by randomly chosen consumers). Most of the physicochemical traits, flavor attributes, and firm texture showed a simple additive inheritance on the contrary to the aroma and other texture traits. Specific networks of relationships among traits were shown in hybrids. Consumers perceived significant differences among hybrids and seemed to particularly appreciate the hybrids among old and modern lines.

Diallel Analysis for Lycopene Content in the Hybrids Derived from Different Colored Parents in Tomato

“…However, the heritability estimate was towards the low end. Narrow-sense heritability estimates for lycopene estimated by theparent-hybrid regression method were found to be 65% in yet another study [16]. Relationship between lycopene and color parameters.…”

“…It has been realized by consumers as well as researchers for a long time that fruit quality including lycopene is the important trait to improve [16]. Realizing this fact, some efforts have been made in the past at NC State University, which resulted in some improved varieties released with improved fruit color [17] [18].…”

Performance de six cultivars de tomates Lycopersicon esculentum Mills. contre la jaunisse en cuillère des feuilles, le flétrissement bactérien et les nématodes à galles.

“…La superficie de tomate plantée en 2001, s'élève à 3,7 millions d'hectares avec une production estimée à 100 millions de tonnes (Causse et al, 2003 ;FAO, 2003).…”

Evaluation of Antimicrobial Activity of Some Enzymes of Trichoderma harzianum Immobilized on Polyester Cloth Films on The Disease Incidence of Postharvest Black Mold Disease of Tomatoes

“…These fleshy fruits are rich of several nutritive materials such as carotenoids (e.g. lycopene), phenolics, vitamin C, carbohydrates, proteins, fats and potassium (Causse et al, 2003 andTalvas et al, 2010). Ripe tomato fruits contain approximately 94% of water, 4.3% carbohydrates, 1% protein, 0.1% fat, 0.6% fiber and vitamins (Asan &Ekmekçi, 2002 andSamuel &Orji, 2015).…”