TO16-0053

Tomato

Variety Description

Varieties used for comparison: 'Merlice', 'TO16-0113' and 'TO16-0010'

Summary: In longitudinal section, the fruit shape of 'TO16-0053' is oblate while that of 'Merlice' is circular and that of 'TO16-0113' is flattened. At the peduncle end, the degree of ribbing of the fruit of 'TO16-0053' is weak while that of 'Merlice' and 'TO16-0010' is absent or very weak and that of 'TO16-0113' is medium. At the peduncle end, the depression of the fruit of 'TO16-0053' is weak while it is medium for that of 'TO16-0113'. At the blossom end, the fruit shape of 'TO16-0053' is indented to flat while that of 'Merlice' is flat to pointed. The plants of 'TO16-0053' are susceptible to Oidium lycopersicum while those of 'TO16-0113' are resistant.

Description:

SEEDLING: anthocyanin colouration of hypocotyl present

PLANT: indeterminate growth type, flowers early season, mid-season fruit maturity

LEAF: semi-erect to horizontal attitude, bipinnate division of blade

PEDUNCLE: abscission layer absent
FLOWER: yellow

IMMATURE FRUIT: green shoulder absent, light green, no green stripes
MATURE FRUIT: medium size, medium length to diameter ratio, oblate shape in longitudinal section, weak degree of ribbing at peduncle end, weak depression at peduncle end, indented to flat at blossom end, three or four locules, red, red flesh, medium to firm

DISEASE REACTIONS: resistance to Fusarium oxysporum f. sp. lycopersici race 0 (ex1) and race 1 (ex 2) present, resistance to Oidium neolycopersici (On) (ex Odium lycopersicum (OI)) absent

Origin & Breeding History: 'TO16-0053' originated from a controlled cross conducted by Valerio Primomo at the Vineland Research and Innovation Centre located in Vineland, Ontario. The cross was made in 2016 between two proprietary inbreds. In 2017, 'TO16-0053' was included in hybrid screening trials in Vineland, Ontario and further trialed in Vineland and Leamington, Ontario in 2018 and 2019. The hybrid tomato variety 'TO16-0053' was selected in November 2018 for its uniform fruit clusters, fruit yield, shelf-life, colour, flavour and disease resistance.

Tests & Trials: The comparative trials for 'TO16-0053' were conducted in the same greenhouse and row (trough) in 2021 and 2022 at the Vineland Research and Innovation Centre in Vineland, Ontario. The trials included a total of 24 plants each of the candidate and reference varieties. Each plot contained 12 plants with 2 replicates. The plot was 4 metres squared, with 3 heads per metre squared in 40 metre long rows. All plants were grown in 10 cm rockwool blocks spaced 25 cm apart and grafted onto Kaiser rootstock with the cotyledon pinched. The observations and measurements were taken from 24 plants, or parts of plants, of each variety from February 15 to June 24 in 2021 and from February 28 to June 16 in 2022. Disease resistances were assessed in separate disease nurseries on 23 plants for Fusarium oxysporum f. sp. lycopersici race 0 (ex1) and race 1 (ex 2), and 32 plants for Oidium neolycopersici (On). Assessments were based on the standards used to describe disease susceptibilities.

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Tomato: 'TO16-0053' (left) with reference variety 'Merlice' (right)

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Tomato: 'TO16-0053' (left) with reference variety 'Merlice' (right)

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Tomato: 'TO16-0053' (middle right) with reference varieties 'Merlice' (left), 'TO16-0113' (middle left) and 'TO16-0010' (right)