Reasons Why Strawberries Do Not Bloom or Bear Fruit and How to Fix Them
Why do strawberries fail to bloom and bear fruit? What can be done to solve it? We also ask netizens with strawberry-growing experience to share their advice. It is currently strawberry season, but some growers' strawberries neither bloom nor bear fruit, so Zhongdiwang has compiled the reasons that can cause strawberries not to bloom or bear fruit, detailed below...
Why do strawberries fail to bloom and bear fruit? What can be done to solve it? We also ask netizens with strawberry-growing experience to share their adviceIt is currently strawberry season, but some growers' strawberries neither bloom nor bear fruit, so Zhongdiwang has compiled the reasons that can cause strawberries not to bloom or bear fruit, listed in detail below for netizens' reference.
1. Caused by internal factors:
1. Caused by the characteristics of the strawberry variety; varieties with different ripening periods differ in how early or late flower buds differentiate, the number of flowers differentiated, and the number of flower buds.
2. Caused by nutrient factors; this is closely related to the plant's nutritional status and flower bud formation. For example, excessive nitrogen leads to vigorous vegetative growth, which is unfavorable for strawberry flower bud differentiation.
3. Caused by growth hormones; flower bud differentiation is the result of the interaction between hormones that promote flower bud differentiation and hormones that inhibit it. Generally, growth-promoting hormones such as gibberellins and auxins are unfavorable for flower bud differentiation; growth-inhibiting hormones such as abscisic acid and cytokinins promote flower bud differentiation.
4. Caused by genetic material; the genetic materials ribonucleic acid (RNA) and deoxyribonucleic acid (DNA) control flower bud formation. Research suggests that in many fruit trees, an increased RNA/DNA ratio and decreased ribonuclease activity are favorable for promoting flower bud differentiation.
2. Caused by external factors:
1. Temperature and light: low temperature and short-day conditions induce flower bud formation. Most strawberry varieties begin flower bud differentiation under the induction of low temperature and short-day conditions when the daily average temperature drops below 20°C and daylight shortens to below 12 hours. Differentiation is faster at 10-17°C and a 10-hour short day.
2. Fertilization and watering: for the same variety, excessive nitrogen fertilizer and frequent watering or heavy rainfall lead to strong vegetative growth, showing excessive vegetative growth, or too many leaves and insufficient leaves can both delay flower bud differentiation.
3. Plant growth regulators: artificial spraying of gibberellin can inhibit flower bud differentiation; while plant growth retardants and inhibitors, such as chlormequat, paclobutrazol and abscisic acid, when applied to strawberry seedlings, inhibit plant growth and promote flower bud differentiation.
4. Leaf removal: experiments have shown that removing leaves from strawberry seedlings can induce flower formation, and removing old leaves is more effective than removing new leaves.
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