Mandarin plant named ‘Mikanken16’

Abstract

A new variety of Citrus ‘Mikanken16’ that has dark orange fruit color, no seeds, high juiciness, orange-like flavor, ease of peeling the fruit by hand, good appearance and good tasting qualities.

Description

[0001] Common name: Mandarin.

[0002] Botanical classification: Citrus reticulata Blanco x Citrus sinensis (L.) Osbeck.

[0003] Variety denomination: ‘Mikanken16’.BACKGROUND OF THE NEW VARIETY

[0004] The present invention relates to a new and distinct variety of Mandarin, Citrus L., which has been given the variety denomination ‘Mikanken16’.ORIGIN OF THE VARIETY

[0005] The parent varieties are ‘95-56-25’ (male parent) (not patented in the U.S.) and ‘Mikanken4’ (female parent) (not patented in the U.S.), respectively.

[0006] The variety was developed and propagated in Uwajima, Ehime, Japan.

[0007] The variety was reproduced asexually by vegetative reproduction by top grafting one-year-old scions on rootstocks, in Uwajima, Ehime, Japan. The name of the rootstock is ‘MIYAGAWAWASE’ (not patented).

[0008] In 2004, crossing the parent varieties and collecting seeds were grown in the next year.

[0009] In 2005, 2006 seedlings are grown.

[0010] In 2007, they were grafted on top of root stock.

[0011] In 2010, the first fruit was harvested and lines were primary selected.

[0012] In 2013, plants were secondary selected.

[0013] From 2012 to 2022 growing tests for their performance.

[0014] In 2023, breeding was completed with DUS status confirmed (distinct, uniform, and stable), whereby it was confirmed that the instant tree reproduces true to type in successive generations of asexual reproduction, and the variety was named ‘Mikanken16’.

[0015] Cultivation of the variety does not require special conditions or treatments.

[0016] The variety is currently mainly intended for fruit production.SUMMARY OF THE VARIETY

[0017] This new mandarin plant ‘Mikanken16’ has leave blades with no emargination at the tip, fruit with dark orange surface color (JHS color chart No. 1306), medium surface roughness, medium filling of the core, and medium to late maturity for consumption (typically April), that distinguish it notably from its female parent ‘Mikanken4’.

[0018] Also the fruit of ‘Mikanken16’ having no collar, no navel opening, and no polyembryony of seeds, as well as having medium surface roughness, medium filling of the core, and medium to late maturity for consumption (typically April), distinguishes it notably from comparative variety ‘Shiranuhi’ (not patented) and having no navel opening, and no polyembryony of seeds, as well as having dark orange surface color (JHS color chart No. 1306), medium surface roughness, and medium to late maturity for consumption (typically April), distinguishes it notably from comparative variety ‘Kiyomi’ (not patented).

[0019] Specifically, Table 1 below shows a comparison between the instant variety ‘Mikanken16’ and the female parent ‘Mikanken4’ as follows (evaluation based on averages):

[0020] TABLE 1Comparison between ‘Mikanken16’ and ‘Mikanken4’Female parentPresent variety‘Mikanken4’‘Mikanken16’No.CharacteristicsStatesStates 36Leaf blade: emargination at tipPresentAbsent 99Fruit surface: roughnessSmoothMedium109Fruit: filling of coreAbsent or MediumVery Sparse127Time of maturity of fruit forLate (May)Medium to consumptionLate (April)

[0021] A comparison with the male parent ‘95-56-25’ is not available because ‘95-56-25’ was an old breeding line, whose states of characteristics are unknown and for which there are no long living plant materials.

[0022] Table 2 below shows a comparison between the instant variety ‘Mikanken16’ and comparative varieties ‘Shiranuhi’ and ‘Kiyomi’ as follows (average evaluation):

[0023] TABLE 2Comparison between ‘Mikanken16’ and ‘Shiranuhi’ and ‘Kiyomi’ReferenceReferencePresentvarietyvarietyvariety‘Shiranuhi’‘Kiyomi’‘Mikanken16’No.CharacteristicsStatesStatesStates 87Fruit: presence of PresentAbsentcollar 94Fruit: presence of Occasion-Occasion-Absentnavel openingally Presentally Present 97Fruit surface: MediumDark Orangepredominant Orange (JHS(JHS No. color(s)No. 1605)1306) 99Fruit surface: Medium toSmooth toMediumroughnessRoughMedium109Fruit: filling of Absent or MediumcoreVery Sparse126Seed: poly-PresentAbsentembryony127Time of maturity MediumMediumMedium to of fruit for (March)(March)Late (April)consumptionBRIEF DESCRIPTION OF THE DRAWINGS

[0024] In the accompanying drawings, which are as nearly true as is reasonable possible to make in a color illustration of this type:

[0025] FIG. 1 is a color photograph showing a general view of an illustrative mandarin tree of the variety named ‘Mikanken16’ bearing fruits.

[0026] FIG. 2 is a color photograph showing flowers of ‘Mikanken16’.

[0027] FIG. 3 is a color photograph showing leaves of ‘Mikanken16’, together with leaves of comparative varieties ‘Kiyomi’, and ‘Shiranuhi’.

[0028] FIG. 4 is a color photograph showing fruits of ‘Mikanken16’.

[0029] FIG. 5 is a color photograph showing leaves of ‘Mikanken16’, together with leaves of female parent ‘Mikanken4’, illustrating the difference between the leaf blades, in that the leave blades of ‘Mikanken16’ have absent emargination at the tip instead of present emargination at the tip for ‘Mikanken4’.

[0030] FIG. 6 is a color photograph showing fruits of ‘Mikanken16’, together with fruits of comparative variety ‘Kiyomi’, illustrating the difference between the fruit surface predominant colors, in that the fruit surface predominant color of ‘Mikanken16’ is dark orange (JHS color chart No. 1306) instead of medium orange (JHS color chart No. 1605) for ‘Kiyomi’, and the difference between the fruit surface roughnesses, in that the fruit surface roughness of ‘Mikanken16’ is medium instead of smooth to medium for the fruit of ‘Kiyomi’.

[0031] FIG. 7 is a color photograph showing the transverse section of a fruit of ‘Mikanken16’ together with a fruit of female parent ‘Mikanken4’, illustrating the difference between the filling of the core, in that the fruit of ‘Mikanken16’ has medium filling of the core, instead of absent or very sparse filling of the core for the fruit of ‘Mikanken4’.

[0032] Due to chemical and / or digital development, processing and printing, the plants or portions of plants depicted in the photographs may or may not be precisely accurate, when compared to the actual botanical specimens.DETAILED DESCRIPTION OF THE INVENTION

[0033] Table 3 shows the botanical description of the ‘Mikanken16’ plants evaluated in 2022 (including the comparison with the reference plants ‘KIYOMI’ and ‘SHIRANUI’). Values as provided are averages. The ages of the trees evaluated was 6 years, and the location of the trees evaluated was in Uwajima, Ehime, Japan.

[0034] The ‘Mikanken16’ plants shown on the photographs were grown at Uwajima, Ehime, Japan. The plants were 3-year grown trees after top grafting. The tree was photographed on Dec. 7, 2016, the flowers were photographed on May 7, 2016, the mature leaves photographed on Jul. 26, 2016 and the fruits were photographed on Mar. 23, 2017.

[0035] Colors are given according to the J.H.S. (Japan Horticultural Society) Color Chart.BOTANICAL DESCRIPTION

[0036] TABLE 3Botanical description of ‘Mikanken16’No.CharacteristicsStatesValues  1PloidyDiploid  2Tree: growth habitSpreading  3Tree's vigorStrong  4Tree's density of canopyMedium  5Tree's mature height2.75m  6Tree's mature spread2.95m  7Tree's trunk diameter at a 52.3 mmspecified height above groundat 10 cmabove graftingarea  8Tree's bark textureRough  9Tree's bark colorGreen brownJHS colorchart No. 2509 10Branch length12.6cm 11Branch diameter2.8mm 12Branch crotch angle50° 13Branch bark textureSmooth 14Branch bark colorDark yellowJHS colorgreenchart No.3508 15Tree: density of spinesIntermediate 16Number of spines2.1 17Total leaf bearing nodes6.5 18Location of spinesOn branches 19Length of spines1.7mm 20Spine diameter0.5mm 21Spine shapeconical 22Spine colorDark yellowJHS colorgreenchart No. 3508 23Leaf typeIndividual leaf 24Leaf blade: length (apical leaflet Medium7.3cmin case of compound leaf) 25Leaf blade: width (apical leaflet Medium4.3cmin case of compound leaf) 26Leaf blade: ratio length / width Very small1.7(apical leaflet in case of com-pound leaf) 27Leaf blade: shape in cross sectionIntermediate:(apical leaflet in case of com-curved pound leaf)inwards 28Leaf blade: twistingIntermediate 29Leaf blade: blisteringAbsent or Weak 30Leaf blade: colorMedium JHS colorgreenchart No.3509 31Leaf or leaflet: color of upper Dark yellowJHS colorleaf surfacegreenchart No.3509 32Leaf or leaflet: color lower Dark yellowJHS colorleaf surfacegreenchart No.3507 33Leaf blade: undulation of marginAbsent or Weak 34Leaf blade: incisions of marginCrenate 35Leaf blade: shape of apexAcute 36Leaf blade: emargination at tipAbsent 37Single or compound leaves?Single leaf 38Base descriptor of leaf and / or Acuteleaflet 39Texture of top surface of leaf Smoothand / or leaflet 40Texture of bottom surface of Smoothleaf and / or leaflet 41Petiole: lengthMedium1.9cm 42Petiole diameter1.9mm 43Petiole texture (both surfaces)smooth 44Petiole color (both surfaces)Dark yellowJHS colorgreenchart No.3509 45Petiole: presence of wingsPresent 46Petiole wing shapeVestigial 47Petiole wing length8.0mm 48Petiole wing texture (both Smoothsurfaces) 49Petiole wing color (both sur-Upper and JHS colorfaces)lower:chart No.dark yellow3508 (upper),green3509 (lower) 50Varieties with petiole wings Narrow2.0mmpresent only: Petiole: width of wings 51Flower: length of petalMedium18.4mm 52Flower: width of petalVery Broad8.3mm 53Flower: ratio length / width of Small2.2petal 54Flower: length of stamens—10.3mm 55Flower depth2.2cm 56Flower diameter3.5cm 57Petal number per flower5 58Petal shapeSpindle-shaped 59Petal apexAcute to obtuse 60Petal marginSlightly curved 61Petal base descriptorsTruncate 62Petal color (both surfaces)White (both JHS colorside)chart No. 3301 63Sepal number per flower5 64Sepal shapeLanceolate 65Sepal apexAcute 66Sepal color (both surfaces)Light yellowJHS colorgreen (bothchart No. 3304side) 67Pistil number per flower1 68Stigma colorLight yellow 69Stigma styleRound 70Stigma length0.2mm 71Stigma colorBright orangeJHS coloryellowchart No. 2205 72Anther: colorMedium JHS coloryellowchart No. 2203 73Anther: viable pollenLow(>14 ≤ 21%) 74Amount of pollen producedVery few 75Infructescence: clustering of Presentfruits 76Number of fruits per cluster1 77Fruit: lengthLong7.7cm 78Fruit: diameterLarge8.7cm 79Fruit: ratio length / diameterMedium1.13 80Fruit: position of broadest partAt Middle 81Fruit: shape in transverse sectionCircular 82Fruit: general shape of proximal Flattenedpart (excluding neck, collar and depression at stalk end) 83Fruit: presence of neckAbsent 84Fruit: presence of depression at Presentstalk end 85Fruit: depth of depression at Shallow2.5mmstalk end 86Fruit: presence of constriction at Absentstalk end 87Fruit: presence of collarAbsent 88Fruit: general shape of distalFlattenedpart (excluding nipple, bulgingof navel and depression atdistal end) 89Fruit: presence of depression at Presentdistal end 90Fruit: depth of depression at Shallow1.7mmdistal end 91Fruit: presence of areolaAbsent 92Fruit: diameter of stylar scarVery small1.4mm 93Fruit: persistence of styleNone 94Fruit: presence of navel openingAbsent 95Fruit: presence of radial grooves Absentat distal end 96Fruit: expression of radial Absent or grooves at distal endVery Weak 97Fruit surface: predominant Dark orangeJHS colorcolor(s)chart No. 1306 98Fruit surface: glossinessMedium 99Fruit surface: roughnessMedium100Fruit surface: diameter of oil All about the1.5mmglandssame diameter101Fruit rind: adherence to fleshWeak102Fruit rind: strengthWeak103Fruit rind: conspicuousness of Absent oroil glands on inner surfaceWeaklyConspicuous104Fruit rind thickness3.5mm105Fruit rind ease of peelingSomewhat easy106Fruit: color of albedoLight yellowJHS colorchart No. 1905107Fruit: density of albedoMedium108Fruit: main color of fleshDark orangeJHS colorchart No. 1306109Fruit: filling of coreMedium110Fruit: presence of rudimentaryAbsent or segmentsVery Weak111Number of segments per fruit12112Fruit: strength of segment wallsMedium113Fruit; conspicuousness of juice Mediumvesicle walls114Fruit: presence of navel (viewedAbsent or internally)Very Rare115Fruit: juicinessHigh116Fruit juice: total soluble solidsHigh13.1 Brix117Fruit juice: acidityMedium1.02118Juice sac length8.4mm119Juice sac width2.8mm120Juice colorDark orangeJHS colorchart No. 1306121Fruit: strength of fiberMedium122Fruit: number of seeds (con-Absent or 0trolled manual self-pollination)Very Few123Fruit: number of seeds (openAbsent or 0pollination)Very Few124Fruit weight233.21g125Fruit productivity: amount of 35kg / fruit produced per tree per treeseason126Seed: polyembryonyAbsent127Time of maturity of fruit for Medium to AprilconsumptionLate128Fruit: parthenocarpyPresent129Plant: self-incompatibilityPresent

[0037] Other features of the plant are as follows:

[0038] Disease and pest resistance: Normal resistance was observed for pests and diseases in Uwajima, Ehime, Japan.

[0039] Tree hardiness: USDA Hardiness Zone 9a-9b (until −3° C.).

[0040] Fruit shipability: Medium.

[0041] Fruit storageability: Medium.

Examples

Embodiment Construction

[0033]Table 3 shows the botanical description of the ‘Mikanken16’ plants evaluated in 2022 (including the comparison with the reference plants ‘KIYOMI’ and ‘SHIRANUI’). Values as provided are averages. The ages of the trees evaluated was 6 years, and the location of the trees evaluated was in Uwajima, Ehime, Japan.

[0034]The ‘Mikanken16’ plants shown on the photographs were grown at Uwajima, Ehime, Japan. The plants were 3-year grown trees after top grafting. The tree was photographed on Dec. 7, 2016, the flowers were photographed on May 7, 2016, the mature leaves photographed on Jul. 26, 2016 and the fruits were photographed on Mar. 23, 2017.

[0035]Colors are given according to the J.H.S. (Japan Horticultural Society) Color Chart.

BOTANICAL DESCRIPTION

[0036]

TABLE 3Botanical description of ‘Mikanken16’No.CharacteristicsStatesValues  1PloidyDiploid  2Tree: growth habitSpreading  3Tree's vigorStrong  4Tree's density of canopyMedium  5Tree's mature height2.75m  6Tree's mature spread2.95m ...

[0001] Common name: Mandarin.

[0002] Botanical classification: Citrus reticulata Blanco x Citrus sinensis (L.) Osbeck.

[0003] Variety denomination: ‘Mikanken16’.BACKGROUND OF THE NEW VARIETY

[0004] The present invention relates to a new and distinct variety of Mandarin, Citrus L., which has been given the variety denomination ‘Mikanken16’.ORIGIN OF THE VARIETY

[0005] The parent varieties are ‘95-56-25’ (male parent) (not patented in the U.S.) and ‘Mikanken4’ (female parent) (not patented in the U.S.), respectively.

[0006] The variety was developed and propagated in Uwajima, Ehime, Japan.

[0007] The variety was reproduced asexually by vegetative reproduction by top grafting one-year-old scions on rootstocks, in Uwajima, Ehime, Japan. The name of the rootstock is ‘MIYAGAWAWASE’ (not patented).

[0008] In 2004, crossing the parent varieties and collecting seeds were grown in the next year.

[0009] In 2005, 2006 seedlings are grown.

[0010] In 2007, they were grafted on top of root stock.

[0011] In 2010, the first fruit was harvested and lines were primary selected.

[0012] In 2013, plants were secondary selected.

[0013] From 2012 to 2022 growing tests for their performance.

[0014] In 2023, breeding was completed with DUS status confirmed (distinct, uniform, and stable), whereby it was confirmed that the instant tree reproduces true to type in successive generations of asexual reproduction, and the variety was named ‘Mikanken16’.

[0015] Cultivation of the variety does not require special conditions or treatments.

[0016] The variety is currently mainly intended for fruit production.SUMMARY OF THE VARIETY

[0017] This new mandarin plant ‘Mikanken16’ has leave blades with no emargination at the tip, fruit with dark orange surface color (JHS color chart No. 1306), medium surface roughness, medium filling of the core, and medium to late maturity for consumption (typically April), that distinguish it notably from its female parent ‘Mikanken4’.

[0018] Also the fruit of ‘Mikanken16’ having no collar, no navel opening, and no polyembryony of seeds, as well as having medium surface roughness, medium filling of the core, and medium to late maturity for consumption (typically April), distinguishes it notably from comparative variety ‘Shiranuhi’ (not patented) and having no navel opening, and no polyembryony of seeds, as well as having dark orange surface color (JHS color chart No. 1306), medium surface roughness, and medium to late maturity for consumption (typically April), distinguishes it notably from comparative variety ‘Kiyomi’ (not patented).

[0019] Specifically, Table 1 below shows a comparison between the instant variety ‘Mikanken16’ and the female parent ‘Mikanken4’ as follows (evaluation based on averages):

[0020] TABLE 1Comparison between ‘Mikanken16’ and ‘Mikanken4’Female parentPresent variety‘Mikanken4’‘Mikanken16’No.CharacteristicsStatesStates 36Leaf blade: emargination at tipPresentAbsent 99Fruit surface: roughnessSmoothMedium109Fruit: filling of coreAbsent or MediumVery Sparse127Time of maturity of fruit forLate (May)Medium to consumptionLate (April)

[0021] A comparison with the male parent ‘95-56-25’ is not available because ‘95-56-25’ was an old breeding line, whose states of characteristics are unknown and for which there are no long living plant materials.

[0022] Table 2 below shows a comparison between the instant variety ‘Mikanken16’ and comparative varieties ‘Shiranuhi’ and ‘Kiyomi’ as follows (average evaluation):

[0023] TABLE 2Comparison between ‘Mikanken16’ and ‘Shiranuhi’ and ‘Kiyomi’ReferenceReferencePresentvarietyvarietyvariety‘Shiranuhi’‘Kiyomi’‘Mikanken16’No.CharacteristicsStatesStatesStates 87Fruit: presence of PresentAbsentcollar 94Fruit: presence of Occasion-Occasion-Absentnavel openingally Presentally Present 97Fruit surface: MediumDark Orangepredominant Orange (JHS(JHS No. color(s)No. 1605)1306) 99Fruit surface: Medium toSmooth toMediumroughnessRoughMedium109Fruit: filling of Absent or MediumcoreVery Sparse126Seed: poly-PresentAbsentembryony127Time of maturity MediumMediumMedium to of fruit for (March)(March)Late (April)consumptionBRIEF DESCRIPTION OF THE DRAWINGS

[0024] In the accompanying drawings, which are as nearly true as is reasonable possible to make in a color illustration of this type:

[0025] FIG. 1 is a color photograph showing a general view of an illustrative mandarin tree of the variety named ‘Mikanken16’ bearing fruits.

[0026] FIG. 2 is a color photograph showing flowers of ‘Mikanken16’.

[0027] FIG. 3 is a color photograph showing leaves of ‘Mikanken16’, together with leaves of comparative varieties ‘Kiyomi’, and ‘Shiranuhi’.

[0028] FIG. 4 is a color photograph showing fruits of ‘Mikanken16’.

[0029] FIG. 5 is a color photograph showing leaves of ‘Mikanken16’, together with leaves of female parent ‘Mikanken4’, illustrating the difference between the leaf blades, in that the leave blades of ‘Mikanken16’ have absent emargination at the tip instead of present emargination at the tip for ‘Mikanken4’.

[0030] FIG. 6 is a color photograph showing fruits of ‘Mikanken16’, together with fruits of comparative variety ‘Kiyomi’, illustrating the difference between the fruit surface predominant colors, in that the fruit surface predominant color of ‘Mikanken16’ is dark orange (JHS color chart No. 1306) instead of medium orange (JHS color chart No. 1605) for ‘Kiyomi’, and the difference between the fruit surface roughnesses, in that the fruit surface roughness of ‘Mikanken16’ is medium instead of smooth to medium for the fruit of ‘Kiyomi’.

[0031] FIG. 7 is a color photograph showing the transverse section of a fruit of ‘Mikanken16’ together with a fruit of female parent ‘Mikanken4’, illustrating the difference between the filling of the core, in that the fruit of ‘Mikanken16’ has medium filling of the core, instead of absent or very sparse filling of the core for the fruit of ‘Mikanken4’.

[0032] Due to chemical and / or digital development, processing and printing, the plants or portions of plants depicted in the photographs may or may not be precisely accurate, when compared to the actual botanical specimens.DETAILED DESCRIPTION OF THE INVENTION

[0033] Table 3 shows the botanical description of the ‘Mikanken16’ plants evaluated in 2022 (including the comparison with the reference plants ‘KIYOMI’ and ‘SHIRANUI’). Values as provided are averages. The ages of the trees evaluated was 6 years, and the location of the trees evaluated was in Uwajima, Ehime, Japan.

[0034] The ‘Mikanken16’ plants shown on the photographs were grown at Uwajima, Ehime, Japan. The plants were 3-year grown trees after top grafting. The tree was photographed on Dec. 7, 2016, the flowers were photographed on May 7, 2016, the mature leaves photographed on Jul. 26, 2016 and the fruits were photographed on Mar. 23, 2017.

[0035] Colors are given according to the J.H.S. (Japan Horticultural Society) Color Chart.BOTANICAL DESCRIPTION

[0036] TABLE 3Botanical description of ‘Mikanken16’No.CharacteristicsStatesValues  1PloidyDiploid  2Tree: growth habitSpreading  3Tree's vigorStrong  4Tree's density of canopyMedium  5Tree's mature height2.75m  6Tree's mature spread2.95m  7Tree's trunk diameter at a 52.3 mmspecified height above groundat 10 cmabove graftingarea  8Tree's bark textureRough  9Tree's bark colorGreen brownJHS colorchart No. 2509 10Branch length12.6cm 11Branch diameter2.8mm 12Branch crotch angle50° 13Branch bark textureSmooth 14Branch bark colorDark yellowJHS colorgreenchart No.3508 15Tree: density of spinesIntermediate 16Number of spines2.1 17Total leaf bearing nodes6.5 18Location of spinesOn branches 19Length of spines1.7mm 20Spine diameter0.5mm 21Spine shapeconical 22Spine colorDark yellowJHS colorgreenchart No. 3508 23Leaf typeIndividual leaf 24Leaf blade: length (apical leaflet Medium7.3cmin case of compound leaf) 25Leaf blade: width (apical leaflet Medium4.3cmin case of compound leaf) 26Leaf blade: ratio length / width Very small1.7(apical leaflet in case of com-pound leaf) 27Leaf blade: shape in cross sectionIntermediate:(apical leaflet in case of com-curved pound leaf)inwards 28Leaf blade: twistingIntermediate 29Leaf blade: blisteringAbsent or Weak 30Leaf blade: colorMedium JHS colorgreenchart No.3509 31Leaf or leaflet: color of upper Dark yellowJHS colorleaf surfacegreenchart No.3509 32Leaf or leaflet: color lower Dark yellowJHS colorleaf surfacegreenchart No.3507 33Leaf blade: undulation of marginAbsent or Weak 34Leaf blade: incisions of marginCrenate 35Leaf blade: shape of apexAcute 36Leaf blade: emargination at tipAbsent 37Single or compound leaves?Single leaf 38Base descriptor of leaf and / or Acuteleaflet 39Texture of top surface of leaf Smoothand / or leaflet 40Texture of bottom surface of Smoothleaf and / or leaflet 41Petiole: lengthMedium1.9cm 42Petiole diameter1.9mm 43Petiole texture (both surfaces)smooth 44Petiole color (both surfaces)Dark yellowJHS colorgreenchart No.3509 45Petiole: presence of wingsPresent 46Petiole wing shapeVestigial 47Petiole wing length8.0mm 48Petiole wing texture (both Smoothsurfaces) 49Petiole wing color (both sur-Upper and JHS colorfaces)lower:chart No.dark yellow3508 (upper),green3509 (lower) 50Varieties with petiole wings Narrow2.0mmpresent only: Petiole: width of wings 51Flower: length of petalMedium18.4mm 52Flower: width of petalVery Broad8.3mm 53Flower: ratio length / width of Small2.2petal 54Flower: length of stamens—10.3mm 55Flower depth2.2cm 56Flower diameter3.5cm 57Petal number per flower5 58Petal shapeSpindle-shaped 59Petal apexAcute to obtuse 60Petal marginSlightly curved 61Petal base descriptorsTruncate 62Petal color (both surfaces)White (both JHS colorside)chart No. 3301 63Sepal number per flower5 64Sepal shapeLanceolate 65Sepal apexAcute 66Sepal color (both surfaces)Light yellowJHS colorgreen (bothchart No. 3304side) 67Pistil number per flower1 68Stigma colorLight yellow 69Stigma styleRound 70Stigma length0.2mm 71Stigma colorBright orangeJHS coloryellowchart No. 2205 72Anther: colorMedium JHS coloryellowchart No. 2203 73Anther: viable pollenLow(>14 ≤ 21%) 74Amount of pollen producedVery few 75Infructescence: clustering of Presentfruits 76Number of fruits per cluster1 77Fruit: lengthLong7.7cm 78Fruit: diameterLarge8.7cm 79Fruit: ratio length / diameterMedium1.13 80Fruit: position of broadest partAt Middle 81Fruit: shape in transverse sectionCircular 82Fruit: general shape of proximal Flattenedpart (excluding neck, collar and depression at stalk end) 83Fruit: presence of neckAbsent 84Fruit: presence of depression at Presentstalk end 85Fruit: depth of depression at Shallow2.5mmstalk end 86Fruit: presence of constriction at Absentstalk end 87Fruit: presence of collarAbsent 88Fruit: general shape of distalFlattenedpart (excluding nipple, bulgingof navel and depression atdistal end) 89Fruit: presence of depression at Presentdistal end 90Fruit: depth of depression at Shallow1.7mmdistal end 91Fruit: presence of areolaAbsent 92Fruit: diameter of stylar scarVery small1.4mm 93Fruit: persistence of styleNone 94Fruit: presence of navel openingAbsent 95Fruit: presence of radial grooves Absentat distal end 96Fruit: expression of radial Absent or grooves at distal endVery Weak 97Fruit surface: predominant Dark orangeJHS colorcolor(s)chart No. 1306 98Fruit surface: glossinessMedium 99Fruit surface: roughnessMedium100Fruit surface: diameter of oil All about the1.5mmglandssame diameter101Fruit rind: adherence to fleshWeak102Fruit rind: strengthWeak103Fruit rind: conspicuousness of Absent oroil glands on inner surfaceWeaklyConspicuous104Fruit rind thickness3.5mm105Fruit rind ease of peelingSomewhat easy106Fruit: color of albedoLight yellowJHS colorchart No. 1905107Fruit: density of albedoMedium108Fruit: main color of fleshDark orangeJHS colorchart No. 1306109Fruit: filling of coreMedium110Fruit: presence of rudimentaryAbsent or segmentsVery Weak111Number of segments per fruit12112Fruit: strength of segment wallsMedium113Fruit; conspicuousness of juice Mediumvesicle walls114Fruit: presence of navel (viewedAbsent or internally)Very Rare115Fruit: juicinessHigh116Fruit juice: total soluble solidsHigh13.1 Brix117Fruit juice: acidityMedium1.02118Juice sac length8.4mm119Juice sac width2.8mm120Juice colorDark orangeJHS colorchart No. 1306121Fruit: strength of fiberMedium122Fruit: number of seeds (con-Absent or 0trolled manual self-pollination)Very Few123Fruit: number of seeds (openAbsent or 0pollination)Very Few124Fruit weight233.21g125Fruit productivity: amount of 35kg / fruit produced per tree per treeseason126Seed: polyembryonyAbsent127Time of maturity of fruit for Medium to AprilconsumptionLate128Fruit: parthenocarpyPresent129Plant: self-incompatibilityPresent

[0037] Other features of the plant are as follows:

[0038] Disease and pest resistance: Normal resistance was observed for pests and diseases in Uwajima, Ehime, Japan.

[0039] Tree hardiness: USDA Hardiness Zone 9a-9b (until −3° C.).

[0040] Fruit shipability: Medium.

[0041] Fruit storageability: Medium.

Examples

Embodiment Construction

[0033]Table 3 shows the botanical description of the ‘Mikanken16’ plants evaluated in 2022 (including the comparison with the reference plants ‘KIYOMI’ and ‘SHIRANUI’). Values as provided are averages. The ages of the trees evaluated was 6 years, and the location of the trees evaluated was in Uwajima, Ehime, Japan.

[0034]The ‘Mikanken16’ plants shown on the photographs were grown at Uwajima, Ehime, Japan. The plants were 3-year grown trees after top grafting. The tree was photographed on Dec. 7, 2016, the flowers were photographed on May 7, 2016, the mature leaves photographed on Jul. 26, 2016 and the fruits were photographed on Mar. 23, 2017.

[0035]Colors are given according to the J.H.S. (Japan Horticultural Society) Color Chart.

BOTANICAL DESCRIPTION

[0036]

TABLE 3Botanical description of ‘Mikanken16’No.CharacteristicsStatesValues  1PloidyDiploid  2Tree: growth habitSpreading  3Tree's vigorStrong  4Tree's density of canopyMedium  5Tree's mature height2.75m  6Tree's mature spread2.95m ...

Claims

1. A new and distinct variety of Citrus plant named ‘Mikanken16’, substantially as described and illustrated herein.

Images