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调查了无性繁殖系茶树“薮北”品种和其他早晚生品种被晚霜为害后的再发期,结果如下:1.主要无性品系萌芽期的变化最大范围为25天左右。各无性繁殖系的发芽期为其本身固有的特性,因而,除春季芽梢被霜害的以外,发芽期的迟早和采摘期的迟早很少受树龄和地点的影响。2.一个品系受晚霜害的损失度可用(A—B)值来表示,A 是当地晚霜平均日,B是平均发芽日。经过各地的大量试验,“薮北”种受霜害的损失度值,是很接近的。
Investigated the asexual propagation line tea “North” varieties and other early and late varieties were damaged by night cream after the relapse period, the results are as follows: 1. Main clones in the germination of the maximum range of 25 days. The climacteric germination period of its own inherent characteristics, therefore, in addition to the spring shoots are frost outside, the sooner or later the germination period and picking season rarely affected by the age and location. 2. The damage degree of a line affected by night frost can be expressed by the value of (A-B), A is the local average night cream and B is the average germination day. After a large number of tests around, “Chuo North” species frost damage value, is very close.