TML 1104700

Watermelon

Variety Description

Variety used for comparison: 'Lisa'

Summary: 'TML 1104700' has a more yellowish green leaf colour than 'Lisa'. 'TML 1104700' flowers earlier than 'Lisa'. The fruit of 'TML 1104700' is slightly larger and heavier than 'Lisa'. 'TML 1104700' has a slightly darker red flesh colour than 'Lisa'. The seed of 'TML 1104700' is slightly larger and more numerous than 'Lisa'.

Description:

COTYLEDON: small to medium size, elliptic, medium green, no spotting, no depression of veins

PLANT: tetraploid, runner type growth habit, monoecious, early maturity

LEAF: medium length to width ratio, yellowish green, strong degree of lobing, deep incisions, weak blistering, strong undulation of margin, no flecking

FLOWERING: medium time of flowering for female flowers
FEMALE FLOWERS: small petals
OVARY: medium size, moderate pubescence
FRUIT: round shape in longitudinal section, light green ground colour of skin, strong marbling of skin, medium size of insertion of peduncle, flat to rounded basal part with shallow depression, rounded apex with shallow depression, medium to large sized pistil scar, no grooves, medium thickness of outer layer of pericarp, medium red flesh, medium firmness of flesh
SEED: moderate number, medium size, cream colour, equal secondary colour found as dots and patches around margin

Origin & Breeding History: 'TML 1104700' derives from the breeding line B63 of Japanese origin received in 1981. A single plant selection occurred from within the population in 1984 for red flesh colour and identified as line B64. In the period 1985 thru 1994 an outcross or mutation occurred, which was difficult to confirm. In 1995, a small seeded and small fruited plant was selected and identified as 1894. In 1996, 1894 was grown, where plants within the population with a round shape, gray rind and red flesh were selfed. The bulk of three fruit having small seed size was made and identified as 4679. In 1997, 4679 was grown and selfed with a selection being made and identified as 4679-1. In 1998, 4679-1 became known as 6670 and was grown with individual plants being selfed. 12 plants were selected with the seed harvested based on small fruit size with small seed, and became now known as 1671. In 1999, 1671 was grown with individual plants being selfed for seed increase. Seed from 50 plants of the line was harvested and bulked to become 'TML 1104700'. In 2000, the line was increased in isolation cages to increase the seed reserve of Foundation seed, with a subsequent 2000 plants being grown that year in isolation to make stock seed increase.

Tests & Trials: Tests and trials were conducted during the summer of 2007 in Innerkip, Ontario. There were 4 replicates with 10 plants per replicate. There were only 3 plants of 'Lisa'. Plants were spaced 60 cm apart within the row, with a row spacing of 2.4 metres. Results were supported by the official technical examination report, 2003/0480, purchased from the CPVO.

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Watermelon: 'TML 1104700' (right) with reference variety 'Lisa' (left)