Tea plant is a whole. Its growth and development are organically and intricately linked together. Picking new shoots will cause changes in physiological functions of tea plants, and the growth status of various parts of the plant will also change accordingly. Therefore, before picking tea trees, we must first understand the development characteristics of new shoots of tea plants and carry out reasonable picking.
There are two obvious characteristics in the growth and development of tea shoots: the first is the apical dominance; the second is the multiple germination and growth in a year.
1、 Top advantage
During the development of tea shoots, there are terminal buds and lateral buds, which restrict each other in growth. The apical bud germinates first, grows fastest, occupies the dominant position, namely we often say has the apical superiority.
The vigorous growth of terminal bud will inhibit the growth of lateral bud. The germination of lateral buds was delayed, the growth was slow and the number of lateral buds decreased. If it is not picked in time and allowed to grow naturally, the new shoots can only grow 2-3 times a year at most.
By picking the lateral buds in time, there will be 1-3 lateral buds sprouting and growing into new shoots on the left piles for tea picking. Under the human intervention, even for the same tea variety, the number of new shoots growing increased 2-3 times than that of natural growth. At the same time, the germination of tea buds was advanced and the germination density was increased.
2、 It germinates and grows many times a year
The number of sprouting cycles of tea shoots in a year is mainly determined by climatic conditions and variety characteristics. Under normal picking conditions, Jiangbei tea area, Southeast of Shandong Province, generally can grow 3 ~ 4 times.
Under the same environmental conditions, different tea varieties have different sprouting times. According to the investigation of Tea Research Institute of Chinese Academy of Agricultural Sciences, when there are 20 new shoots in spring, only 7 shoots of yellow leaf will continue to germinate in mid September, while 14 shoots of Longjing 43 and Meizhan can germinate again. Obviously, the number of new shoots germination of Longjing 43 and Meizhan is much higher.
The germination times of tea shoots are also related to tree age and management level of tea trees. Here we will not continue to introduce them in depth, but will give you a detailed introduction in the following articles.