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Rinoka

Lemon

Denomination: 'Rinoka'
Botanical Name: Citrus
Applicant/Holder: National Agriculture and Food Research Organization
3-1-1, Kannondai, Tsukuba-shi
Ibaraki
305-8517
Japan
Breeder: Toshio Yoshida, Funabashi, Japan
Hirohisa Nesumi, Koshi, Japan
Terutaka Yoshioka, Shizuoka, Japan
Satoshi Ota, Shizuoka, Japan
Masayuki Kita, Marugame, Japan
Takeshi Kuniga, Zentsuji, Japan
Mutsuko Nonomura, Mishima, Japan
Naoko Nakajima, Shizuoka, Japan
Hiroko Hamada, Shizuoka, Japan
Fumitaka Takishita, Fujieda, Japan
Shoji Murase, Japan
Agent in Canada: Smart & Biggar LP
P.O. Box 2999, Station D
55 Metcalfe Street, Suite 900
Ottawa, Ontario
K1P5Y6
Canada
Tel: 613-232-2486 ex. 1279
Application Date: 2018-03-13
Provisional Protection:: 2018-03-13
Application Number: 18-9391
Grant of Rights Date: 2019-05-01
Certificate Number: 5966
Grant of Rights Termination Date: 2044-05-01

Variety Description

Varieties used for comparison: 'Meyer Lemon' and 'Lisbon Lemon'

Summary: The fruit of 'Rinoka' has yellow skin colour whereas the fruit of 'Meyer Lemon' has yellow orange skin colour. 'Rinoka' has fruit with medium thick peel whereas 'Lisbon Lemon' has fruit with thick peel. 'Rinoka' has fruit with medium degree of acidity and 'Lisbon Lemon' has fruit with high acidity. The fruit of 'Rinoka' has few seeds whereas the fruit of 'Meyer Lemon' has many seeds and the fruit of 'Lisbon Lemon' has a medium amount of seeds.

Description:

TREE: upright growth habit, strong vigour, sparse to medium shoot density
ONE YEAR OLD SHOOT: thick, long, medium internode length, many spines

PETIOLE: short, wide at base, short and narrow wing
YOUNG LEAF BLADE: green, no anthocyanin
LEAF BLADE: long, medium width, medium length to width ratio, spindle-shaped, pointed-obtuse apex, acute at base, absent or weak undulation of the margin

FLOWER: early flowering, raceme inflorescence, six petals
PETAL: medium length, narrow to medium wide, slightly purple
STAMEN: many filaments, no viable pollen
STYLE: straight

FRUIT: matures mid-season, very low diameter to height ratio, protruding apex, medium to heavy, short neck
FRUIT SKIN: yellow, smooth
OIL GLANDS: very few, medium size
FRUIT RIND: medium thickness, white albedo
FRUIT FLESH: yellow-white, not bitter, low to medium sweet, medium acidity
SEEDS: few, monogerm

DISEASE REACTIONS: strong resistance to Canker and Citrus Scab, medium resistance to Melanoses and Arrowhead Scale resistance

Origin & Breeding History: 'Rinoka' originated from a controlled cross-pollination conducted in 1991, at the Institute of Fruit Tree Science - Citrus Research Station in Shizuoka City, Shizuoka, Japan, between the variety 'Lisbon', as the female parent, and the variety 'Hyuganatsu', as the male parent. From the resulting progeny, 'Rinoka' was selected in 2001 for canker resistance.

Tests & Trials: The detailed description of 'Rinoka' is based on the UPOV report of Technical Examination, application number 28741, purchased from the Plant Variety Protection Office, Intellectual Property Division, Food Industry Affairs Bureau, Minister of Agriculture, Forestry and Fisheries, Japan. The documents related to test and trials were examined by the Plant Variety Protection Office in Japan and granted rights on March 20, 2015.

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Rinoka
Lemon: 'Rinoka'

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Rinoka
Lemon: 'Rinoka'

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Rinoka
Lemon: 'Rinoka'

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