Japanese pear tree "Chikusui"

Abstract

Disclosed herein is a Japanese pear tree having a moderate vigor and an easily maintained moderate spur development, a high resistance to black spot disease and a high productivity. This tree produces an oblate-shaped fruit which matures early in the season, i.e., from the start to the middle of August, in the central part of the Kanto district, Japan. The fruit has a medium size and the same weight as `Kosui`, i.e., 250 to 300 g, a yellowish brown skin, and a white flesh which is soft, crisp and very juicy with a high Brix the pH of the juice being about 5.2, a particular smell without aromatic flavor, giving an excellent dessert quality.

We claim: 
     
       1. A new and distinct variety of Japanese pear tree, substantially as illustrated and described herein, characterized over the known Japanese pear trees by having a moderate vigor, a good maintained spur, a strong resistance to black spot disease and no sensitivity to pear necrotic spot disease; having green leaves and young leaves and white flowers; a large amount of fruit which has a yellowish brown skin and an oblate shape; and a flesh which is white in color, soft, crisp and very juicy, with a high sweetness, a low acidity, no astringency, a particular smell without aromatic flavor; and a harvesting stage of the fruit being early in the season.