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Hassaku tree is vigorous, upright, virtually thornless. The leaves are broad and pummelo-like, but petiole wings are narrower, approaching sweet orange. [6] Hassaku fruit is medium to large (9-10 cm in diameter) and slightly oblate; seedy and monoembryonic. The skin color is orange-yellow; moderately thick; slightly grainy.
Tachibana Unshū Iyokan Dekopon (Hallabong, Sumo Citrus). Japanese citrus fruits were first mentioned in the Kojiki and Nihonshoki, compiled in the 700s, and the Man'yōshū and Kokin Wakashū, poetry anthologies compiled in the 700s and 900s, mention the Tachibana orange as a subject of waka poetry and describe its use as a medicinal, ornamental, and incense plant.
Hassaku oranges are harvested just as the frost begins to strengthen, at the end of December. They are then immediately put into storage until they ripen in February, after which they are shipped. In the Anabuki area, eco-farming efforts are being introduced as chemicals and fertilizers are being reduced and cut.
The fruit is small to medium in size (around the size of an orange) and can be round, oblate, or pyriform in shape. It weighs around 200 grams (0.44 pounds). It weighs around 200 grams (0.44 pounds). The rind is moderately thick (around the thickness of an orange) and is yellow in color; it is smooth but porous and is fragrant.
The trifoliate orange is recognizable by the large 3–5 cm (1.2–2.0 in) thorns on the shoots, and its deciduous leaves with three (or rarely, five) leaflets, typically with the middle leaflet 3–5 cm (1.2–2.0 in) long, and the two side leaflets 2–3 cm (0.79–1.18 in) long.
The peel of the Kawachi bankan fruit contains many biologically active substances including naringin, narirutin, auraptene, and 3,5,6,7,8,3',4'-heptamethoxyflavone.The dried powder of the peel exerts anti-inflammatory and neuroprotective effects against aging in the brain of mice and ameliorates microglial activation, tau hyperphosphorylation, and suppression of neurogenesis in the hippocampus ...
The seeds, if present, develop inside the carpels. The space inside each segment is a locule filled with juice vesicles, or pulp. From the endocarp, string-like "hairs" extend into the locules, which provide nourishment to the fruit as it develops. [26] [28] The genus is commercially important with cultivars of many species grown for their fruit.
Citrus unshiu is a semi-seedless and easy-peeling citrus species, also known as the satsuma mandarin or Japanese mandarin. [1] During the Edo period of Japan, kishu mikans were more popular because there was a popular superstition that eating Citrus unshiu without seeds made people prone to infertility.