Factors affecting Flower Bud differentiation of Strawberry

We potted strawberries, in addition to viewing, more importantly, we hope to harvest delicious ripe fruit, and if we want strawberries to bear fruit smoothly, the development and differentiation of flower buds is the key. Only when potted strawberries successfully form flower buds can they further blossom and bear fruit. The quantity and quality of flower buds often have a direct impact on the fruit of strawberries. So, what do you have?

The formation and differentiation of strawberry flower buds are often restricted by the selected varieties and growth status, light, temperature, nutrition and growth regulators. Therefore, the editor makes an analysis for you on these aspects.

I. Seedling quality

The quality of strawberry seedlings will directly affect the formation and differentiation of flower buds, especially the quantity and quality of flower buds. If the seedlings develop well, the number of flower buds differentiated will be more and the quality will be higher. Moreover, the number of leaves of strawberry seedlings often affects the time and speed of flower bud differentiation and the number of flowers. Under normal circumstances, it is necessary to ensure that there are more than 4 leaves, because the seedlings with less than 4 leaves have shorter growth time and less nutrient accumulation, which often have a negative impact on the differentiation of flower buds.

The seedling age of strawberry also has a certain effect on flowering induction, because it is often an important factor in the perception of temperature and sunshine, and has a great influence on the differentiation and formation of flower buds. Usually, the older the plant, the weaker the growth, the time for the formation of flower buds lags behind, and even can not successfully promote the formation of flower buds.

Young strawberry plants are generally planted in the first ten days of September in autumn, and are usually carried out in the evening on cloudy or sunny days, because the time of planting in the basin often affects the formation and differentiation of flower buds to some extent.

II. Cultivation and management

As a potted strawberry, scientific and reasonable cultivation and management methods will play a great role in promoting the formation and differentiation of flower buds in the later stage of plants. Usually, the process of flower bud differentiation can be reasonably regulated from many aspects, such as seedling raising process, pot planting, basin soil preparation, water and fertilizer management and so on.

In the seedling stage, it is generally necessary to avoid strong light, receive short sunshine with weak light, and appropriately lower the temperature, which can promote the differentiation of tiger teeth, while proper root pruning and root cutting can control the intake of nitrogen, which can not only promote the differentiation of flower buds, but also make the formation of flower buds more neat.

III. Nutritional elements

The number of nutrient elements often restricts the formation of flower buds. Especially in the period of flower bud differentiation, sufficient carbohydrates, appropriate amount of nitrogen and high ratio of carbon to nitrogen will be more conducive to promote the formation of flower buds to a great extent; if the ratio of carbon to nitrogen is relatively low, it tends to delay flower bud differentiation to a certain extent.

Relatively speaking, the strong growing seedlings will differentiate the flower buds earlier than the weaker ones, but the number of florets will increase accordingly, mainly due to excessive nitrogen intake, resulting in excessive plant growth. as a result, it does not inhibit the differentiation of flower buds. On the contrary, the moderately growing seedlings are more conducive to promoting the differentiation of flower buds. Through root pruning and proper control of growth, the differentiation of flower buds can be accelerated.

IV. Environmental factors

The main environmental factors affecting flower bud differentiation and development of potted strawberry are temperature and light. If these two conditions are suitable, it will accelerate the formation and differentiation of strawberry flower bud. Usually, the best temperature for flower bud differentiation is between 10 and 20 ℃, which can keep the environmental average temperature at 15 ℃, but when the air temperature is below 5 ℃, flower bud differentiation is often inhibited or stopped. At the same time, in the process of flower bud differentiation, it is necessary to ensure that the light time is 10-12 hours per day.

However, the conditions of flower bud differentiation and development are often different, and there may even be a big contrast. Flower bud differentiation needs to go through the process of low temperature and short day, while the development of flower bud needs to go through the process of high temperature and long day, and the latter needs to receive light for no less than 12 hours in the temperature environment above 20 ℃. After the normal differentiation of flower buds, we need to adjust the temperature and light in time to make the environment more conducive to the development and growth of flower buds.

5. Growth regulators

For strawberries, the application of growth regulators generally choose abscisic acid rather than gibberellin. Because the application of abscisic acid can promote the flower bud differentiation of strawberry, on the contrary, the application of gibberellin will often inhibit the formation and differentiation of flower buds. If some paclobutrazol can be sprayed at the strawberry seedling stage, it often helps to promote the formation of flower buds to a certain extent.