What conditions are needed for litchi flower bud differentiation? A detailed explanation of the latest key points

Friends who grow fruit trees all know that the success or failure of flower bud differentiation determines the yield and quality of fruit trees, so it must be taken seriously when fruit trees undergo flower bud differentiation. We are fairly familiar with litchi, and its economic value is extremely high. To achieve high yield, it is necessary to start with flower bud differentiation. So what conditions are needed for litchi flower bud differentiation? Let's take a look together.

1. Time of flower bud differentiation

First, you need to understand its flower bud differentiation time. Litchi flower bud differentiation varies depending on variety and region. Under normal circumstances, early-maturing varieties begin flower bud differentiation in October in autumn, while mid-to-late-maturing varieties begin flower bud differentiation in December. There are also varieties that begin flower bud differentiation in December and continue until March of the following year.

2. Nutrient requirements

The fruiting branches of litchi grow robustly, the tree vigor is moderate, winter shoots are easy to control, and sufficient nutrients are accumulated, which is conducive to flower bud differentiation in the plant. The more nutrients the tree body accumulates, the better its flower bud differentiation will be. If the tree vigor is excessively strong and the plant's vegetative growth is vigorous, it is not conducive to flower bud differentiation, and flowers, pods, and leaves are very likely to sprout ahead of time, causing reduced yield; or the panicle may be too long, consuming too many nutrients, and the proportion of female flowers will be relatively low, which will also cause reduced yield.

When litchi transitions from vegetative growth to reproductive growth, the tree body's nutrients and hormone types and proportions will undergo obvious changes to adapt to the needs of the plant's reproductive growth. During litchi flower bud differentiation, a large amount of cytokinin is secreted to promote flower bud differentiation. Winter temperatures are relatively low, and the low-temperature period is long, which inhibits the plant's vegetative growth and promotes reproductive growth, so the quality of flower bud differentiation is good. If winter temperatures are high, vegetative growth is vigorous, and a large amount of nutrients is consumed, the quality of flower bud differentiation is poor, and quality and yield will also decline. Different varieties have different temperature requirements. Generally, Baila and Heiye require 8-15 degrees, while Feizixiao and Baitangying require below 20 degrees.

The above is an introduction to the conditions for litchi flower bud differentiation. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.