Studies on the flesh disorder in peach: 1, Varietal differences in the incidence of flesh disorder in peach
2014
Hagihara, E. (Yamanashi Fruit Tree Experiment Station, Yamanashi-shi (Japan)) | Watanabe, K. | Tomita, A. | Shinya, K. | Furuya, S. | Tezuka, T. | Nakagomi, K.
In late years a flesh disorder occurs in peach and often becomes the serious problem, because product value of the fruit that a symptom is severe falls remarkably. It had been said that there was the difference between varieties in the incidence of the flesh disorder so far, but there was no evidence to show it definitely. If the difference between varieties becomes clear, it is useful when a variety is chosen. Therefore, in this examination, we investigated the outbreak situation of the flesh disorder in 20 varieties of peach which are cultivated in Yamanashi from 2004 through 2006. In 'Chiyohime', 'Hikawahakuhou', 'Kanoiwahakutou', 'Ichimiyahakutou' and 'Ougontou', there was little outbreak of the disorder, and the degree of the disorder was minimal. On the other hand, in 'Benikunimi', 'Reihou', 'Natsuotome' and 'Misakakko', there was much severe fruit, and the average incidence for 3 years went over 10%. In this way, the difference between varieties and a difference between the annual were accepted by the incidence of the flesh disorder. The relationship was not recognized to the outbreak of the flesh disorder and average of the weight of the fruit of the variety. However, it was revealed that the variety that the average of the sugar content was higher in than 12.5deg Brix was at high incidence of the flesh disorder.
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