研究了刻芽和拉枝处理对苹果幼树生长发育的影响.结果表明:当刻芽伤口到芽体的距离为6mm时,萌芽率达到最高(90.5％).当拉枝角度为45°时,枝条的加长生长量最大；在70°时加粗生长量最大；在90°时萌芽率最高(74.0％).当拉枝角度为110°时叶片含水量最高(63.9％).叶片总叶绿素含量在拉枝角度为70°时达到最高(3.190 mg/g).拉枝角度为45°时,叶片含氮量极显著高于其它处理；在110°时叶片中磷、钾、铜、锰的含量均最高；当拉技角度为70°时,叶片中镁、铁、锌含量均达到最高.叶片中总碳含量随着拉枝角度的增大而减少.新梢中碳和氮含量均在90°时最高,但C/N在110°时最大.%The effects of bud - notching and branch - bending on the growth and development of young apple trees were studied. The results showed that; when the distance between notching wound and bud was 6 mm, the germination rate was maximum, and reached 90.5%. When the angle of branch - bending was 45°, the lengthening growth quantity of the branches was the largest. When the angle of branch - bending was 70°, the thickening growth quantity of the branches was the largest. The highest germination rate (74.0% ) was found in 90° branch - bending treatment. When the angle of branch - bending was 110° , the leaf water content was the highest (63. 9% ). The total chlorophyll content in leaf was the highest (3.190 mg/g) in the treatment of 70° branch -bending. The leaf nitrogen content in 45° branch - bending treatment was extremely significantly higher than that of other treatments. In the treatment of 110° branch - bending, the contents of phosphorus, potassium, copper and manganese in leaf were all the highest. While in the treatment of 70° branch - bending, the contents of magnesium, iron and zinc in leaf were the highest. The total carbon content in leaf decreased when the angle of branch - bending increased. In the new shoots, the carbon and nitrogen contents were maximum at 90°, while the C/N was the highest at 110°.
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