CITRUS L. PLANT NAMED 'HAYASE'

Abstract

A new variety of Citrus sp. tree HAYASE that has medium tree habit in-between upright and spreading, spindle-shaped leaf blade with acuminate apex and acute base, vestigial wing, fruit with high diameter/height ratio (average 1.31) and medium to heavy weight (average 152.3 g), no neck, a flat distal part, bright orange (JHS 1305) skin color, thin peel thickness, easy to medium peeling, deep orange (JHS 1307) color when fresh, juicy when fresh, high sweetness, very few seeds, early maturity, and low acidity.

Claims

1. A new and distinct variety of Citrus sp. tree named HAYASE, substantially as described and illustrated herein.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In the accompanying drawings, which are as nearly true as is reasonable possible to make in a color illustration of this type:

[0024] FIG. 1 is a color photograph showing a general view of an illustrative mandarin tree of the variety named HAYASE bearing fruits.

[0025] FIG. 2 is a color photograph showing flowers of HAYASE.

[0026] FIG. 3 is a color photograph showing flower organs of HAYASE.

[0027] FIG. 4 is a color photograph showing fruits of HAYASE.

[0028] FIG. 5 is a color photograph showing sections of fruit of HAYASE.

[0029] FIG. 6 is a color photograph showing flowers of HAYASE, together with flowers of SETOKA (male parent and comparative variety) and TSUNONOZOMI (female parent).

[0030] FIG. 7 is a color photograph showing the horizontal section, the transverse section, upper view and lower view of a fruit of HAYASE together with a fruit of female parent TSUNONOZOMI, and male parent SETOKA, illustrating the difference between the fruit apex shape, in that the fruit of HAYASE has a flat apex, whereas the fruit of TSUNONOZOMI has a sinking apex.

[0031] FIG. 8 is a color photograph showing a fruiting state on the tree of HAYASE.

[0032] FIG. 9 is another color photograph showing a fruiting state on the tree of HAYASE.

[0033] 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

[0034] Table 3 below shows the botanical description of the HAYASE plants evaluated in 2022 and 2023 (including the comparison with the reference plant SETOKA). The values provided are averages. The ages of the trees evaluated was 7 years, and the location of the trees evaluated was Shizuoka-city, Shizuoka, Japan.

[0035] The HAYASE plants shown on the photographs were grown at Shizuoka-city, Shizuoka, Japan. The plants were 7-year grown trees after top grafting. The tree was photographed on Nov. 24, 2023, the flowers were photographed on Apr. 30, 2023, and the fruits were photographed on Jan. 5, 2023.

[0036] Colors are given according to the J.H.S. (Japan Horticultural Society) Color Chart.

BOTANICAL DESCRIPTION

TABLE-US-00005 TABLE 5 Botanical description of HAYASE No. Characteristics Descriptions Values 1. Tree habit in-between upright and spreading 2. Shoot density dense 3. Tree size: average height 2.3 m 4. Tree size: average spread 2.4 m 5. Tree vigor medium 6. One year old shoot: diameter medium 2.7 mm 7. One year old shoot: length medium 11.9 cm 8. One year old shoot: internode medium 1.7 cm 9. One year old shoot: spine (number of few 5% spines per leaf nodes) (%) 10. Spine: average size very short 1.9 mm 11. Spine: average color dull greenish yellow JHS 2910 12. Leaf blade: shape spindle shaped 13 Leaf blade: apex shape acuminate 14. Leaf blade: base shape acute 15. Leaf blade: wave weak 16. Leaf blade: size medium 21.1 cm.sup.2 17. Leaf blade: length medium 8.2 cm 18. Leaf blade: width narrow 3.5 cm 19. Leaf shape (length/width ratio) medium 2.4 20. Leaf thickness medium 0.34 mm 21. Leaf vein: clarity of upper surface slightly clear 22 Leaf vein: color of upper surface soft yellow green JHS 3310 23. Leaf color: upper surface dark green JHS 4007 24. Leaf color: lower surface soft green JHS 3709 25. Wing shape vestigial 26. Wing length medium 13.9 mm 27. Wing width narrow 3.2 mm 28. Petiole length medium 17.7 mm 29. Petiole diameter (base) medium 1.5 mm 30. Petiole color soft yellow green JHS 3511 31. Peduncle color soft yellow green JHS 3511 32 Inflorescence single 33. Flower weight (beginning of light 0.23 g flowering) 34. Petal shape (full flowering) lanceolate 35. Petal length (full flowering) short 10.9 mm 36. Petal width (full flowering) narrow 4.9 mm 37. Petal color (full flowering, outside) yellowish white JHS 2902 38. Petal number 5 39. Pistil average length short 7.9 mm 40. Stamen average length short 6.3 mm 41. Stamen: average color of anther yellowish white JHS 2701 42. Filament number few 17.3 43. Filament separation separating 44. Pollens none 45. Ovary shape compressed 46. Style shape straight 47. Fruit: average diameter medium 70.1 mm 48. Fruit: average height medium 52.5 mm 49. Fruit: shape of proximal part flattened 50. Fruit: diameter/height ratio high 1.34 51. Fruit: shape of distal part flattened 52. Fruit: broadest part at middle 53. Fruit: radial groove at distal part absent 54. Fruit: apex concave ring (circular absent depression or disk-shaped protuberance around the style scar) 55 Fruit: radial groove at proximal part very few 0.6 56. Fruit: stalk end depression absent 57 Fruit: collar absent 58. Fruit: shape in transverse section circular 59. Fruit: areola absent 60 Core density sparse 61 Core size (core diameter/fruit small 19.1 diameter) 62. Fruit weight medium 149.9 g 63. Skin color bright orange JHS 1305 64 Albedo color pale reddish orange JHS 2202 65. Oil gland size mixed, including small, medium, and large 66. Oil gland number medium 66.8 cm.sup.2 67. Oil gland surface convex 68. Fruit surface smooth to medium 69. Fruit surface glossiness medium 70. Amount of albedo adhering to fruit small flesh (not including fruit strands) 71. Fruit navel (when viewed internally) absent 72. Fruit average number of segments many 13 73. Fruit average number of rudimentary absent or few segments 74. Peel thickness thin 2.0 mm 75. Pericarp percentage small 16.1% 76. Peeling easy to medium 77. Septum firmness soft 78. Juice sacs shape medium 79. Juice sacs size medium 80. Flesh color deep orange JHS 1307 81. Juiciness of flesh juicy 82. Sweetness high 13.6 (Brix) 83. Bitterness not bitter 84. Acidity low 0.90 g/100 ml 85. Seeds/fruit (since there are very few, the very few 0.8 on seed characteristics were not measured) average 86. Embryo color (multigerm only) pale yellow green JHS 3102 87. Polyembryony present 88. Sprouting time medium early April 89. Flowering time medium early May 90. Flowering habit flowering once 91. Time of maturity early January 92. Fruit shipping quality moderate 93. Fruit storage life moderate 1-2 months 94. Fruit market use as fresh fruit 95. Fruit market productivity 40 kg/plant

[0037] Other features of the plant are as follows: [0038] Disease and pest resistance: normal resistance was observed for pests and diseases in Shizuoka-city, Shizuoka Japan, in particular the following pests: thrips, fruit-piercing stink bugs, scales; and the following diseases: citrus canker, melanose, botrytis fruit injury. [0039] Tree hardiness: USDA Hardiness Zone: 9a-9b.