Quantitative analysis on the effect of planting techniques on the quality of apple-shaped pear

After measunng the content of components, giving marks on the appearance quality,and edible quality by tasting，1he muulti-linear regression equations between planting techniques and components content appearance quality and edible quality of the fruits respectively are constructed，and the partial coefficients of respective factors of planting techniques to components content, appearance quality and edible quality are drawn out,which indictes the influencing degree of respective factors of planting techniques to the omprehensive quality of apple-shaped pear. Thus, the rule that altitude has effect on the fruits quality of apple-shaped pear is also disclosed from quantity. Analysis results also show that the sequence of correlated degree of the respective factors of planting techniques to the components content of fruits is :altitude>intercropping>tree shape>fertilizing>pest control>density>age,to the appearance quality of fruits is:tree shape>density>age>fertilizing>altitude>intercropping>pest control,and to the edible quality is :pest control>age>density>tree shape>intercropping>fertilizing>fertilizing>altitude.