苹果新品种“红乔纳金”的引种观察姜林（青岛市农科所２６６１００）自１９８８年１０月从荷兰引进红乔纳金品种后，经多年观察证明，该品种结果早、丰产、品质优良，是一个极好的中早熟苹果新品种。１要实经济性状果实大，单果重２００ｇ，短圆锥形，果形指数０．８３；... Introduction of the New Apple Variety “Red Jonathan” Jiang Lin (Qingdao Agricultural Science Institute 266100) Since the introduction of the red Jonathan variety from the Netherlands in October 1988, it has been proved for many years that the early, high yield and quality of the variety Excellent, is an excellent new variety of premature apple. 1 to real economic traits, fruit weight, fruit weight 200g, short conical fruit shape index of 0.83; ...