為改良國產紅豆品種之品質與產量及各種農藝性狀,高雄區農業改良場育成新品種「高雄7號」。本品種於民國77年開始進行雜交,歷經各級試驗初步篩選淘汰之後,於87年1月3日通過審查命名。其植株高度在高屏地區約50公分,嘉南地區約為37公分;起莢位離地面高度在高屏地區約為16.5公分,嘉南地區約為10.5公分;子實千粒重約170公克,屬於大粒種。與目前的推廣品種高雄6號相比,其植株高大,起莢位置提高,落葉整齊,因此更適於機械收穫;而其子粒色澤比高雄6號更為鮮紅、粒型更大、製餡加工特性也十分良好,除可供傳統加工製作紅豆餡外,其大粒型的特點更可整粒加工製作各種休閒食品。因此,高雄7號紅豆新品種的推出,除可適應於機械收穫、節省農民採收成本及收穫時的損失外,更可提供更為多樣化的消費應用,對於國內紅豆產業將更有助益。
A new adzuki bean variety Kaohsiung No.7 developed by the Kaohsiung District Agricultural Improvement Station was released to farmers by the station in 1998. The Kaohsiung No.7 is a pure line selection from the cross, Mikami Dainagon x KS540, made in 1988. The new variety is taller and its first-node position is higher than the leading varieties Kaohsiung No.5 and No.6. Thus, it is suitable for machine harvest. In addition, the 1000-seeds weight is heavier than the other commercial varieties, the fresh seed coat color and the bean paste are accepted by both the producers of the food industry and the consumers, It is good not only for paste processing but also for leisure food.