Promote The Germination And Growth of Tea Buds
隐藏域元素占位
Promote The Germination And Growth of Tea Buds
Regulators that promote the germination and growth of tea buds
Gibberellic acid (GA3)
The effect of gibberellic acid in increasing production is mainly that it can promote the division and elongation of cells, thereby promoting the germination of shoots and leaves, stimulating and accelerating the growth of new shoots. After spraying in leaf-picking tea gardens, dormant buds are stimulated and quickly germinate and grow, the number of buds and leaves increases, and the number of leaf clips is reduced, and the tenderness is good. According to the test and measurement of the Tea Science Institute of the Chinese Academy of Agricultural Sciences, the density of shoots increased by 10% to 25% compared with the control, and the yield of spring tea was generally increased by about 15%, that of summer tea was increased by about 20%, and the yield of autumn tea was increased by about 30%.
The use concentration should be appropriate, generally 50 ~ 100mg/L is more suitable for spraying, and 50kg of liquid medicine is sprayed on the whole plant per mu. The temperature in spring is lower, and the concentration can be higher; in summer and autumn, the temperature is higher, and the concentration should be lower. According to the experience of various places, the initial spraying effect of 1 leaf and 1 heart is good. It can be sprayed all day in the low temperature season.
The petiole injection of 10-40mg/L gibberellic acid on unbranched young tea trees can break the dormancy, and the tea trees grow 2-4 leaves in mid-February, while the control tea trees don't start to grow leaves until early March.
Attention should be paid to the use, it cannot be mixed with alkaline pesticides and fertilizers, and the effect of mixing 0.5% urea or 1% ammonium sulfate is better; the application concentration is strict, and it should only be sprayed once per tea season, and fertilizer and water management should be strengthened after spraying; The effect of gibberellin in the tea body is about 14d, so it is appropriate to pick one bud and three leaves; gibberellic acid should be used as needed.
Triacontanol
Triacontanol can accelerate the germination of tea trees, promote the growth of new shoots and shoots, increase the density of shoot heads and the density of 1 bud and 3 leaves, and the yield increase effect is obvious. Processing about 15d before Qingming can increase the yield of "Mingqian tea". About 7d before each picking (1 bud and 1 leaf at the initial stage and 15d after), use 0.5-1mg/L triacontanol milk powder, about 50kg per mu of liquid, and spray the whole plant evenly. Pay attention to the strict drug concentration. If 3% urea is added during use, the effect will be better.
p-Chlorophenoxyacetic acid
In the spring, summer and autumn budding period of tea trees, use 60mg/L p-chlorophenoxyacetic acid to spray the whole plant, and spray 50kg of liquid medicine per mu, which can promote the early emergence of tea buds and increase the yield. Generally, the yield is increased by 26% to 35%.
Sodium Nitrophenolate
In the early stage of spring tea, the whole plant was sprayed with 3-4.5mg/L sodium nitrophenolate solution at the initial stage of 1 bud and 1 leaf to promote the early emergence of axillary buds, and the effect of increasing yield was obvious. Spring tea is generally sprayed about 2 times, summer and autumn tea can be combined with pest control and pesticides, evenly sprayed on the front and back of the leaves, and it is moderately wet and unclear to achieve two effects of pest control and growth promotion. According to the test, after spraying sodium nitrophenolate on tea trees, it showed a variety of physiological effects. First, the spacing between buds and leaves was elongated, and the bud weight increased. According to the measurement, the bud weight increased by 9.4% compared with the control. Germination, the germination density increased by 13.7%; the third is to increase the chlorophyll content, improve the photosynthesis ability, and the leaf color becomes greener.
Brassinolide
Spraying 0.02-0.1mg/L Brassinolide solution in the budding stage of tea tree can promote the growth of tea tree buds, increase the germination density, increase the yield of buds and leaves, and also increase the yield of fresh leaves by 17.8%. Tea production increased by 15%, and the effect of increasing production was obvious.
Gibberellic acid (GA3) and kinetin
Spraying on the leaves with 75mg/L furfuraminopurine (kinetin) at the beginning of the expansion period of tea buds, and sprayed once every 7 days. At the end of the tea season, it can promote the length of new shoots and increase the number of tea leaves. The length and number of lateral branches of seedlings. Spraying with 5-50mg/LGA3 liquid in early spring can increase the internode length, plant height and leaf area per plant of tea seedlings. The use of the two alone or in combination can promote the growth of twigs and leaves, increase the number of tea pickings, and increase the yield of tea, with no significant impact on the quality.
Gibberellic acid and 6-BA
Generally, 50-100mg/L gibberellic acid combined with 50-100mg/L6-BA is sprayed on the leaves at the initial stage of 1 bud and 1 leaf, which can increase the yield of tea, and the total nitrogen caffeine and protein content in the tea after treatment are relatively high. Great improvement.
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