优良单株
superior individual tree
Superior tree
Superior individual
superior individual plants
superior individuals
superior individual of varieties
Excellent individual-tree
plus trees
plus tree
Advanced trees
The better single ones
advanced selections
优良单株选择
Individual tree selection
富红苹果的选育研究
Breeding of appie varity Fuhong
苹粉红劣蚜
rosy apple aphid
architectural conformation
苹果果实日烧的控制
control of apple fruit sunscald