摘要
为了确定早实核桃成龄树的适宜修剪方法,以10a生早实核桃‘绿岭’为试材,研究了重回缩、拉枝、既重回缩又拉枝和放任生长4种不同修剪方式的核桃树单株新梢发生数量、产量和根系活力。结果表明:在果实成熟期,重回缩、拉枝、既重回缩又拉枝和放任生长4种修剪方式的‘绿岭’核桃每株新梢发生数量分别为32.33条、22.67条、26.67条和12.67条,重回缩处理的新梢发生数量最多;单果重分别为11.16g、10.53g、12.22g和11.58g,既重回缩又拉枝处理的单果重最高;每667m2地产量分别为129.36kg、154.44kg、155.32kg和97.24kg,既重回缩又拉枝处理的产量最高,其次为拉枝;生长季末期,4种修剪方式的根系活力分别为193.22μg/(g·h)、181.53μg/(g·h)、231.65μg/(g·h)和150.60μg/(g·h),既重回缩又拉枝处理的根系活力最高。
In order to determine an appropriate pruning method of adult precocious walnut trees,10aprecocious walnut trees were used as materials to study the number of new shoots,yield and root activity of four pruning methods（heavy cutting-back,bending branch,heavy cutting-back with bending branch and natural pruning）in 2013.The results showed that the number of new shoots of these four pruning treatments were 32.33,22.67,26.67and 12.67,respectively in the fruit mature period and the number by heavy cuttingback was the biggest.The single fruit weight of the 4treatments was 11.16g,10.53g,12.22g and 11.58g respectively,with the highest by heavy cutting-back with bending branch.Their yields per 667m2 were 129.36kg,154.44kg,155.32kg and 97.24kg,respectively indicating that of heavy cutting-back with bending branch was the highest,followed by bending branch.In the end of the growing season,the root activity of heavy cutting-back with bending branch was the highest among the four pruning treatments which was231.65μg/（g·h）followed by 193.22μg/（g·h）（heavy cutting-back）,181.53μg/（g·h）（bending branch）,and 150.60μg/（g·h）（natural pruning）,respectively.
出处
《河北林果研究》
2014年第2期150-153,共4页
Hebei Journal of Forestry and Orchard Research
基金
国家级林业公益性行业科研专项"北方核桃早丰品种选育
栽培技术研究"(201004093)
河北省科技支撑计划项目"河北省山区核桃产业技术创新与示范体系建设"(14236811D)
关键词
重回缩
拉枝
新梢数量
产量
根系活力
heavy cutting-back
bending branch
the number of new shoots
yield
root activity
