扶风早实核桃枝条短截试验初报

Cutting Back Pruning Techniques for Precocious Walnut Branches in Fufeng County

扶风早实核桃由于结实早,结果多,分枝多,养分过度消耗,容易引起树势过早衰弱。通过进行顶梢、秋梢中部、春秋梢交界处、春梢中部短截处理,得出这些短截方法对新生枝条的数量、长度、粗度、叶面积、副梢生长和剪口下枝条枯死长度都产生了不同程度的影响。从春梢中部短截修剪,能够刺激扶风早实核桃植株的生长,对增强树势和抑制枝条枯死有明显作用。

Early fructification, more fruit-bearing and abundant branches of precocious walnut in Fufeng county will cause that nutritional components is overly consumed and tree vigor get untimely weakened. The top of shoots, central section of autumn shoots, the juncture of spring and autumn shoots, central section of spring shoots were cut back pruning, which influenced on number, length, diameter, area of leaf coat, number and length of secondary shoots and the length of withered branches below pruning wounds at different degrees. The cutting back pruning of central section of spring shoots could stimulate growth of precocious walnut, and obviously strengthen the tree vigor and control branches withered.