Inhibit The Formation of Tea Seeds
隐藏域元素占位
Inhibit The Formation of Tea Seeds
Regulators that inhibit the formation of tea seeds
Ethephon
The purpose of cultivating tea trees is to harvest more of its young shoots. Therefore, for leaf-picking tea gardens, the application of growth regulators to control the growth of flowers and fruits and promote the growth of buds and leaves is an effective way to increase the yield of tea. The mechanism of action of ethephon on tea trees is to promote the activity of abscission cells in the flower stalk and fruit stalk to achieve the purpose of shedding. According to the experiment of the former Department of Tea Science of Zhejiang Agricultural University, about 15 days after spraying, the flower drop rate is about 80%. Due to the reduction of the consumption of nutrients by flowers and fruits, the output of tea in the following year can be increased by 16.15%. The spray concentration should be 500～1000mg/L. Since the release of ethylene molecules is accelerated with the increase of temperature, the concentration should be appropriately reduced when the flower buds are small, the tissue is growing vigorously or the temperature is high; the concentration should be appropriately high when most of the flowers have opened and the growth is slow or the temperature is low. some. Spraying from October to November has the best effect of increasing the yield of flowers and fruits.
The spraying concentration of ethephon should not be excessive, otherwise it will cause abnormal defoliation, and the amount of defoliation will increase with the increase of the concentration; in order to reduce the defoliation, ethephon 1000mg/L plus 30mg/L gibberellic acid mixed spraying has a significant effect of protecting leaves, while It does not affect the effect of thinning flower buds; it is appropriate to choose cloudy days or evening when spraying, and it is required that there is no rain within 12 hours of spraying.
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