Blanco plant named ‘Tamdo No.3’

Abstract

A new and distinct Citrus Reticulate Blanco plant named ‘Tamdo No. 3’, characterized by its upright plant type and strong vigor, The plant type of ‘Tamdo No.3’ is upright and the tree vigor is strong, fruit shape is oblate and the fruit shape index is about 143, fruit skin thickness is about 2.7 mm so it is easy skinning, the fruit flesh rate is about 82.9%, sugar of fruit juice is about 13.7° Bx, the acidity is about 0.79%, and the sugar acid ratio is about 17.34.

Description

Latin name of the genus and species of the plant claimed: Citrus reticulata Blanco.

Variety denomination: ‘Tamdo No.3’.

BACKGROUND OF THE INVENTION

The new and distinct cultivar is a product of a breeding program conducted in a nursery in Korea and by the inventors by crossing a Japanese variety ‘Kiyomi’ (not patented, as the seed parent) and an American variety ‘Sunburst’ mandarin (not patented, as the pollen parent). The seeds obtained by the cross were sowed in the next spring. The plants started fruiting in 2010. In 2011, the first screening was carried out, and the one called Jegamna-27 was selected. In the last screening which was carried out in 2012, Jegamna-27 was selected as a new variety and named ‘Tamdo No.3’.

After hybridization of the parents, the variety was planted by asexual propagation by grafting in Korea for three generations and there was no genetic variation, therefore its traits are stable.

The fruit characteristics of ‘Tamdo No.3’ are in the Table 1 below. The test carried out from 2010 to 2012, in Citrus Research Station.

	Survey	Fruit		Fruit	Thickness
	date	weight	Flesh	shape	of the skin
	(yyyy.mm.dd)	(g)	rate (%)	index	(mm)
	2010.1.6	254.2	85.9	155	1.7
	2010.3.22	173.9	77.9		3.0
	2011.1.5	189.8	85.1	157	1.5
	2011.1.20	213.8	82.3	155	2.1
	2011.2.7	200.8	81.9	149	2.7
	2011.2.21	171.6	82.7	152	2.3
	2011.3.8	232.6	78.5	152	2.8
	2011.3.29	262.2	81.4	158	2.4
	2012.2.6	290.8	84.6	149	2.3
	2012.2.20	280.0	82.9	143	2.7
	2012.3.13	284.6	82.6	141	2.2
	Survey	Seed
	date	grain	Sugar	Acidity	Sugar
	(yyyy.mm.dd)	number	(° Bx)	(%)	acid ratio
	2010.1.6	0.0	10.8	0.82	13.19
	2010.3.22	2.4	11.8	1.22	9.66
	2011.1.5	0.6	12.9	1.28	10.13
	2011.1.20	0.0	12.7	1.28	10.46
	2011.2.7	0.0	14.0	1.09	13.02
	2011.2.21	0.0	14.4	1.31	11.20
	2011.3.8	0.0	14.7	1.06	13.85
	2011.3.29	0.0	13.5	0.85	16.05
	2012.2.6	0.0	12.9	0.88	14.69
	2012.2.20	0.0	13.7	0.79	17.34
	2012.3.13	0.0	13.8	0.82	16.77
Fruit shape index = The transverse diameter ÷ The longitudinal diameter × 100

SUMMARY OF THE INVENTION

The cultivar ‘Tamdo No. 3’ has not been observed under every possible environmental conditions. Therefore, there may be variations in the phenotype due to varying environmental conditions such as temperature, day length and light intensity. However, the genotype will not vary.

The following traits have been repeatedly observed and are determined to be the characteristics of the new cultivar of Citrus reticulata Blanco. These attributes in combination distinguish ‘Tamdo No. 3’ as unique from all other varieties of Citrus reticulata Blanco known to the inventors.

• • 1. The plant type of ‘Tamdo No.3’ is upright and the tree vigor is strong.
  • 2. The fruit color is orange.
  • 3. Germination stage of ‘Tamdo No.3’ is in the middle of April, and the blooming stage is in late May.
  • 4. Fruits start coloring in late October and finish coloring in early December.
  • 5. The mature stage is in the middle of February.
  • 6. Fruit shape is oblate and the fruit shape index is about 143.
  • 7. Fruit skin thickness is about 2.7 mm so it is easy skinning.
  • 8. The fruit flesh rate is about 82.9%.
  • 9. Sugar of fruit juice is about 13.7° Bx, the acidity is about 0.79%, and the sugar acid ratio is about 17.34.

Plants of the new cultivar ‘Tamdo No. 3’ are similar to plants of the seed parent ‘Kiyomi’ in most horticultural characteristics, however, the plants of the new cultivar ‘Tamdo No. 3’ produce tree vigor that are stronger than the parent. Compared to the parent, ‘Tamdo No. 3’ produces fruit with skin thickness of about 2.7 mm. The fruit surface of the new cultivar is smooth, whereas the ‘Kiyomi’ cultivar has a rough fruit surface.

The new cultivar differs from the closest comparable plants and characteristics of the new cultivar as shown in the tables below:

TABLE 2
Denomi-		The expression
nation	Characteristic	of the characteristic
of similar	in which the similar	Kiyomi	Tamdo No. 3
variety	variety is different	Variety	Variety
Kiyomi	plant: type	medium	upright
	Tree vigor	medium	strong
	Fruit: shape index	119 (round)	143 (oblate)
	Fruit: flesh rate	74.6%	82.9%
	Fruit: skin thickness	4.9 mm	2.7 mm
	Fruit: skin surface	rough	smooth
	Fruit juice: Sugar (° Bx)	9.7	13.7
	Fruit juice: Acidity (%)	1.17	0.79
	Fruit: sugar acid ratio	8.29	17.34
	Fruit: color	yellowish	medium
		orange	orange
	Mature stage	early (in the	very early (in
		middle of	the middle of
		March)	February)

TABLE 3
				Thickness
	Fruit		Fruit	of the	Seed
	weight	Flesh	shape	skin	grain
Variety	(g)	rate (%)	index	(mm)	number
Tamdo	213.8	82.3	155	2.1	0.0
No.3
Kiyomi	214.0	74.4	107	4.1	0.0
T-Test	NS	*	*	*
(0.05)
Tamdo	232.6	78.5	152	2.8	0.0
No.3
Kiyomi	209.9	70.5	118	4.8	0.0
T-Test	NS	*	*	*
(0.05)
Tamdo	280.0	82.9	143	2.7	0.0
No.3
Kiyomi	318.7	74.6	119	4.9	0.0
T-Test	NS	*	*	*
(0.05)
				Degree
			Sugar	of	Survey
	Sugar	Acidity	acid	color	date
Variety	(° Bx)	(%)	ratio	(a*)	(yyyy.mm.dd)
Tamdo	12.7	1.28	10.46	30.8	2011.1.20
No.3
Kiyomi	10.1	1.75	5.99	18.7	2011.1.20
T-Test	*	NS	*	*
(0.05)
Tamdo	14.7	1.06	13.85	33.6	2011.3.8
No.3
Kiyomi	10.3	1.55	6.68	22.6	2011.3.9
T-Test	*	*	*	*
(0.05)
Tamdo	13.7	0.79	17.34	31.1	2012.2.20
No.3
Kiyomi	9.7	1.17	8.29	18.7	2012.2.20
T-Test	*	*	*	*
(0.05)

TABLE 4
	Charac-	Forms of Expression
NO	teristics	1	2	3	4	5
1	Chromo-		2	3	4
	some
	multiple
2	Plant:	upright				medium
	Type
3	Plant:	no or				medium
	density of	sparse
	spines
4	leaf: color	light				green
		green
5	leaf: length	very		short		medium
		short
6	leaf: width	very		narrow		medium
		narrow
7	leaf: length/	small				medium
	width ratio
8	Leaf petiole:	very		short		medium
	length	short
9	Flower:	small				medium
	calyx
	diameter
10	Flower:	very		short		medium
	petal length	short
11	Flower:	very		narrow		medium
	petal width	narrow
12	Flower:	small				medium
	petal length/
	width ratio
13	Flower:	very		short		medium
	stamen	short
	length
14	Flower:	white				light
	anther color	NN155A				yellow
15	Flower:	absent
	activity
	pollen
16	Fruit: length	very		short		medium
		short
17	Fruit: width	very		nanow		medium
		narrow
18	Fruit:	small				medium
	length/width
	ratio
19	Fruit: neck	absent
20	Fruit: areola	absent
21	Fruit:	green	yellowish	light	medium	yellowish
	surface		green	yellow	yellow	orange
	color					(26B)
22	Fruit:	smooth
	surface
	roughness
23	Fruit: fresh	with	light	light	medium	light
	color	white	green	yellow	yellow	orange
						(24A)
24	Fruit: skin	thin				medium
	thickness
25	Fruit: skin	weak				medium
	strength
26	Fruit juice:	low				medium
	total soluble
	solids
27	Fruit juice:	low				medium
	acid
28	Mature	very		early		medium
	stage	early
29	Partheno-	absent
	carpy
30	Self-	absent
	incompat-
	ibility
31	Tree vigor	weak				medium
		Application
		variety:	Similar
		Tamdo	variety:
	Forms of Expression	No. 3	Kiyomi
NO	6	7	8	9	No	Data	No	Data
1					2		2
2				pen-	1		5
				dulous
3				densely	1		1
4				dark	9		9
				green
				(137A)
5		long		very	5	10.3 cm	7	12.7 cm
				long
6		broad		very	5	4.8 cm	7	5.8 cm
				broad
7				large	5	2.2	5	2.2
8		long		very	3	14.9	5	21.7
				long		mm		mm
9				large	5		5
10		long		very	5	18.2	5	16.1
				long		mm		mm
11		broad		very	5	8.9	5	7.7
				broad		mm		mm
12				large	5	2.0	5	2.1
13		long		very	5		5
				long
14				medium	1		1
				yellow
15				present	1		1
16		long		very	5	59.7	7	73.5
				long		mm		mm
17		large		very	7	89.4	7	84.3
				large		mm		mm
18				large	5	0.67	9	0.87
19				present	9		1
20				present	1		1
21	medium	dark	red	red	6	31.8(a)	5	20.0(a)
	orange	orange	with
	(30D)		orange
22				rough	1		9
23	medium	dark	red	purple	6		4
	orange	orang
	(25A)
24				thick	5	2.7	9	4.9
						mm		mm
25				strong	5		9
26				high	9	13.7°	5	9.7°
						Bx		Bx
27				high	1		5
28		late		very	1		3
				late
29				present	9		9
30				present	9		9
31				strong	9		5

Table 5 illustrates the comparison of the claimed plant with that of the pollen parent ‘Sunburst’ and a related know variety ‘Kanpei’.

TABLE 5
Characteristic(s)
in	Describe the	Describe the	Describe the
which the	expression	expression	expression
candidate	of the	of the	of the
variety differs	characteristic(s)	characteristic(s)	characteristic(s)
from the	for the candidate	for the similar	for the similar
similar	variety	variety	variety
variety(ies)	‘Tamdo No. 3’	‘Sunburst’	‘kanpei’
Plant: Type	upright	upright	spreading
Flower: activity	absent	present	absent
pollen
Fruit: width	89.4 mm	66.5 mm	73.0 mm
Fruit: neck	present	absent	absent
Fruit: presence of	absent or very	always present	absent or very
navel	rare		rare
Fruit juice: total	13.7° Bx	11.4° Bx	11.1° Bx
soluble solids
Fruit juice: acid	0.79%	0.84%	1.11%
Fruit: number of	0	10	0
seeds
Mature stage	Mid-late(mid-	Early(Mid-	Middle(mid-
	February)	november)	January)
Parthenocarpy	presen	absent	present
Self-	present	present	present
incompatibility
Tree vigor	strong	strong	middle

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying colored photographs illustrate the overall appearance and distinct characteristics of the new Citrus reticulate Blanco ‘Tamdo No. 3’ showing colors as true as is reasonably possible with colored reproduction of this type. The age of the plant in the photos are approximately 9 years. These photos were taken in 2012, in Korea. Colors in the photographs may differ slightly from the color values cited in the detained botanical description which accurately describes the color of the ‘Tamdo No. 3’.

The chart used in the identification of colors described herein is The R.H.S. Colour Chart of The Royal Horticultural Society, 2007, Fifth edition, except where general color terms of ordinary significance are used.

FIG. 1 provides multiple views of typical fruits harvested from the cultivar ‘Tamdo No. 3’. Top, bottom and side views of the whole, unpeeled fruit are shown as well as two cross-sectional views of the inside of the fruit.

FIG. 2 illustrates in full color typical foliage and fruits of ‘Tamdo No. 3’ on the tree.

DETAILED BOTANICAL DESCRIPTION

The following is a detailed description of the new cultivar ‘Tamdo No. 3’ plants as grown in Korea. The descriptions were taken from 2010 to 2012.

• Botanical classification: Citrus reticulate Blanco ‘Tamdo No. 3’.
• Propagation: ‘Tamdo No. 3’ is typically grafted onto rootstock of ‘Jegamna-27’.
• Plant:
  • • Age of the plant described.—Approximately 3 years.
    • Chromosome multiples.—2.
    • Plant type.—Upright.
    • Plant tree vigor.—Strong.
    • Plant density of spines.—None or sparse.
• Foliage:
  • • Leaf color.—Dark green (R.H.S. Green 137A).
    • Leaf length.—About 10.3 cm.
    • Leaf width.—About 4.8 cm.
    • Leaf length/width ratio.—About 2.2.
    • Leaf petiole length.—About 14.9 mm.
    • Leaf shape.—Ovate.
    • Margin of leaf.—Absent or weak.
    • Apex of leaf.—Acute.
• Flower:
  • • Flower calyx diameter.—About 3.2 mm.
    • Flower petal length.—About 18.2 mm.
    • Flower petal width.—About 8.9 mm.
    • Flower petal length/width ratio.—About 2.0.
    • Flower stamen length.—About 7.7 mm.
    • Flower anther color.—White (R.H.S. White NN155A).
    • Flower activity pollen.—Absent.
• Fruit:
  • • Fruit length.—About 59.7 mm.
    • Fruit width.—About 89.4 mm.
    • Fruit length/width ratio.—About 0.67.
    • Fruit neck.—Present.
    • Fruit areola.—Absent.
    • Fruit surface color.—Medium orange (R.H.S. Orange 30D).
    • Fruit surface roughness.—Smooth.
    • Fruit fresh color.—Medium orange (R.H.S. Orange 25A).
    • Fruit skin thickness.—About 2.7 mm.
    • Fruit skin strength.—Medium.
    • Fruit flesh rate.—About 82.9%.
    • Fruit sugar acid ratio.—About 17.34.
    • Fruit juice.—Total soluble solids: about 13.7° Bx.
    • Fruit juice acidity.—About 0.79%.
    • Mature stage.—Very early.
    • Parthenocarpy.—Present.
    • Self-incompatibility.—Present.
    • Tree vigor.—Strong.
    • Position of the broadest part of the fruit.—At middle.
    • Shape of the fruit.—Oblate.
    • Width of the fruit neck.—About 16.2 mm.
    • Length of the fruit neck.—About 6.5 mm.
    • The presence of depression at distal end of the fruit.—Absent.
    • The glossiness of the fruit surface.—Moderate.
    • The adherence to the flesh of the fruit rind.—Weak.
    • The presence of the navel of fruit.—Absent.
    • The time of maturity of fruit for consumption.—Mid-late (mid-February).
    • The polyembryony of the seed.—Absent.
    • Seed.—Absent.
    • Other fruit features.—For the very early mature stage, ‘Tamdo No.3’ should be protected cultured. Pruning on ‘Tamdo No.3’ is as the same as other variety which belongs to Citrus reticulata Blanco.

Claims

1. A new and distinct cultivar of Citrus reticulate Blanco plant named ‘Tamdo No. 3’ as herein illustrated and described.