One-year-or two-year-old trees of the nectarine varieties Zaohongbaoshi,Huyou 004,and Huyou 018 were used to study the effects of root restriction adopted in protected fruit-tree farming on the light-intercepting capability in the canopy,the soluble protein content in the leaves and the leaf weights of young nectarine trees.

This paper summerized the influenes of root restriction on the growth and development of fruit trees, covering leaf nutrition, accumulation and partition, leaf area, growth of braucnes and the size of the plant, number of flower buds, percentage of fruit set, size of fruit, yield and date of ripening, activity of hormone, growth and development of root system, water use profit and etc.

【Result】 Root confinement inhibited the vegetative growth of the above-ground parts.

Effect of rooting-zone restriction on the root growth of Minicure Finger grapevine;

Rooting-zone restriction (RZR) is a new technique of fruit cultivation.

The changes in total sugar,organic acid,anthocyanin,pH,total proteins,and the contents of free amino acid and vitamin C in grape(Vitis vinifera) berry under rooting-zone restriction(RZR) were measured.

Vegetative growth and fruiting status of grapevine under root restriction;

Effects of root restriction and nitrogen application on the growth of Forsythia suspensa seedlings;

Many experiments in fruit trees revealed that root restriction inhibited vegetative growth and improved fruit quality, which suggested that nitrogen and carbon metabolisms might be changed.

Root restriction is a powerful technique for saving agricultural resources and controlling environment of root systems, and to solve the problems caused by soil sickness or soil contaminations.

But, this ideology formed some intrinsic drawbacks at the then particular historical stage, which results in insurmountable basic limitations at the deep structure of reception aesthetics, i.