What are the reasons for grape vines not germinating?
Are you curious about the content of green plant and flower cultivation regarding why grape vines do not germinate? Below, the editor provides a detailed explanation for you.
What are the reasons for grape vines not germinating?
Grapes are a common fruit in China, rich in nutrients, and beneficial for pregnant women. Currently, the price of grapes is good, and there are many farmers growing grapes. During the cultivation process, it is easy for grape vines not to germinate, and once they do not germinate, it is difficult to make up for it, so farmers must prevent it as soon as possible. The following will introduce the reasons for grape vines not germinating and preventive measures.
Reasons for grape vines not germinating
1. During the formation of young grape plants, excessive fertilizer and water cause the plant to grow too fast, with insufficient new shoots and buds. Moreover, overly long pruning branches result in poor bud differentiation. In winter, freezing or lack of water can lead to weak buds without growth points. These new shoots need to be cut off during summer pruning. Even if they are not cut off, they will not germinate due to poor growth, affecting the next year's germination.
2. Insufficient light and poor ventilation. Grapes are a highly polar藤本 plant, and branches grown under conditions of insufficient light and poor ventilation are prone not to germinate. In environments with ample light and high temperatures, due to lush foliage and poor ventilation, the germination ability of weak buds is very low.
3. Inappropriate pruning, that is, during winter pruning, it is not possible to retain some branches in areas that do not germinate easily, which may cause some people to cut them off due to weakness. In summer pruning, all tender branches on branches and vines with no tendency to germinate are removed, and these tender branches cannot be left in appropriate positions for cultivation.
4. Mechanical damage, frost damage, diseases and pests, or excessive and untimely treatment of basal buds weaken tree vitality, disturb the tree shape, and cause no germination.
5. Results show that excessive fruit consumption exceeds nutritional accumulation, leading to weak trees, thin branches, and unfull buds, making the trees prone to frost damage during winter, resulting in no germination or even death of the entire plant.
6. Excessive spraying or inappropriate use of pesticides can burn the leaves and inhibit germination. If an improperly diluted Bordeaux mixture is sprayed, the leaves are easily burned and damaged, chlorophyll is destroyed, the buds on the branches are unfull, affecting the germination of the winter buds.
Preventive measures for grape vines not germinating
1. Choose suitable varieties. When planting grapes, it is necessary to choose varieties suitable for the local climate. For example, in cold northern regions, early to mid-season varieties and varieties with easy-to-mature fruits and branches should be selected for cultivation.
2. Reasonable fertilization. Organic fertilizer should be applied in the autumn after fruit picking, and top dressing should be applied in the first half of the year, especially during the rainy season. To meet the needs of grape bud differentiation and fruit expansion, 0.3% urea and 0.2% potassium dihydrogen phosphate solution should be sprayed every 10 days during the grape growth and development process.
3. Proper thinning of flowers and fruits. Thinning flowers and fruits is a reasonable adjustment of grape load. For young trees, focus on shaping, and for the fruiting stage, maintain a reasonable load to increase nutrient reserves and promote branch maturity; in the aging stage, pay attention to timely renewal and rejuvenation, increase vegetative growth, and reduce fruit yield.
4. Strengthen summer management. In the rainy season, pay attention to the drainage of the grape garden and control the watering of grapes in the later growth stage. To prevent crown closure, improve light and ventilation conditions, thinning, pinching, and removing secondary branches should be done in a timely manner. Also, strengthen the prevention and control of diseases and pests to ensure that the grape vines are strong and not too vigorous, with enough nutrition to survive winter and reduce the amount of non-germination.
5. Good cutting. For weak branches in non-germinating areas, leave two or three short branches to update old vines next year. If the vines are thick and strong, long branches can be left in the same year for heart-shaped picking, or they can be cultivated into fruiting branches or vines.
The above [] provides a detailed introduction to the reasons for grape vines not germinating, hoping to bring some flower knowledge to flower enthusiasts.