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Variety traits

Watermelon sweetness

Citrullus lanatus (Thunb.) Matsum. & Nakai

An indicator of watermelon quality and ripeness, measured in degrees Brix (°Bx) as the percentage of soluble solids in the flesh.

In the reference 306 varieties crop Watermelon, where this is mentioned in the description.

To assess sweetness, refractometers are used to measure the refractive index of the fruit juice. Typical values for watermelon range from 9% to 13% Brix, with a value of 10% or higher considered the standard level of ripeness for commercial sale. It is important to note that the distribution of sugars in the fruit is non-uniform: the concentration of soluble solids is significantly higher in the center than near the edges.

Sugar accumulation depends on growing conditions, including optimal temperatures of +25°C to +30°C during the day and no lower than +18°C at night, as well as high light intensity. A key agronomic practice is to restrict irrigation a week before harvest to prevent dilution of the flesh. Sufficient potassium supply promotes efficient transport of sugars into the fruits, while the potential level of sweetness is also limited by the genetic characteristics of the variety.

General information about the subject — on the page Sugar content.

Sources8

Varieties of Watermelon mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.

Prelita

Application submitted

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Nunhems Netherlands B.V.

NL
3 records

Graciosa

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

INTERSEMILLAS SAU

ES
2 records

Cheetah

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

HAZERA SEEDS BV

ES
2 records

Robusta

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

INTERSEMILLAS SAU

ES
2 records

WM 840

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Nunhems B.V.

NL
2 records

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

INTERSEMILLAS SAU

ES
2 records

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

BURPEE NL B.V.

NL
2 records

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

UNITED GENETICS SEEDS CO

PT
2 records

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Syngenta Crop Protection AG

NL
3 records

Cometa

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

TAKII EUROPE B V

NL
2 records

Galiota

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Hort Seed Mediterrani S.L

ES
2 records

Adele

Application submitted

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

ESASEM S.p.A

HU
2 records

Kratos

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

AGROSEL S.R.L.

RO
3 records

Cavanna

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

TAKII & CO LTD

NL
2 records

EPICA

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Jon Thompson

UA
2 records

Morosita

Application submitted

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

CORA SEEDS S.R.L

HU PL
2 records

Leopard

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

HAZERA GENETICS

ES
2 records

Nurlan

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

HAZERA SEEDS BV

ES
2 records

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

UNITED GENETICS SEEDS CO

PT
2 records

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

UNITED GENETICS SEEDS CO

PT
2 records

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

UNITED GENETICS SEEDS CO

PT
2 records

Mocambo

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

MERIDIEM SEEDS S.L.

IT
2 records

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

PETOSEED CO

ES
3 records

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Enza Zaden Beheer B.V.

NL
3 records

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