About TAKEMURA YOSHIHIRO
About Pyrus pyrifolia
About new breed
About registration
About breeding by separation
About hybridization breeding
About hybridization
About self-incompatibility
About plant growth
About black spot
About disease resistance
About growth rate
About fruit
About hardness
About weight(gravity)
About sugar content
About Tottori prefecture
About area
About plant breeding
About Japanese pear
About fruit weight
About flesh firmness
About crop acreage
About strength of trees
About selective breeding
About 爽甘
About late maturing
About registration of variety
About species specificity
About Crop varieties(=cultivars)
About Fruit trees
About 新品種
About 栽培技術
About 日本
About ナシ