Top 5 Factors Affecting the Survival Rate of Grafted Tree Rose
The following is an in-depth introduction to the top 5 factors affecting the survival rate of grafted tree roses for netizens, and the editor will explain next.
Top 5 Factors Affecting the Survival Rate of Grafted Tree Rose
Grafting is one of the most widely used methods for propagating tree roses. Grafting belongs to the category of asexual reproduction, where parts of two plant bodies are combined into a whole and continue to grow like a single plant. In the grafting combination, the upper part is called the scion, and the part that bears the scion is called the rootstock. Some rose varieties are rare, with attractive flowers, but the rootstocks are weak and grow very slowly. The Nanyang Wannong Tree Rose Wholesale Company explains the five factors affecting the survival of grafted roses.
One, the choice of rootstock:
The first step in grafting roses is to select a suitable rootstock. The rootstock not only bears mechanical support and absorbs and transports water and nutrients but also controls the plant's absorption of organic matter, produces various enzymes, and stores nutrients, greatly affecting the characteristics of the stems, leaves, flowers, and fruits on the upper part of the plant. Of course, the scion also plays an important role in the growth and development of the rootstock. Various experiments have proven that the quality of the rootstock is one of the important factors in producing ideal grafted rose seedlings. The commonly used rootstocks are roses and their varieties, such as 'PINK BALL' rose, 'Manetti' rose, Dutch roses, and Japanese thornless roses. These rose species have well-developed root systems, cold resistance, and drought resistance, with strong affinity for the grafted varieties and stable heredity.
--The charm of Nanyang Wannong small tree roses
Two, the quality of the rootstock and scion:
According to the growth规律 of the rootstock and the comparison between cutting seedlings and seedlings, it is ideal to use one-year-old seedlings as the rootstock for rose grafting, as they have well-developed root systems, strong disease resistance, smooth main stems, and moderate thickness. Of course, using cutting seedlings for grafting also has its advantages, such as short cutting time and easy rooting.
Three, the grafting affinity between the rootstock and scion:
Grafting affinity refers to the similarity in internal tissue structure, heredity, and physiological characteristics between the rootstock and scion. Grafting can promote the survival and physiological adaptation of the plant after survival. The manifestations of weak and strong affinity are complex. Generally, the closer the relationship, the stronger the affinity. The affinity is strongest between the same species or varieties. The grafting affinity between different species of the same genus varies by species.
Four, the cambium layer of the rootstock and scion:
The cambium layers of the rootstock and scion must have a considerable area of close contact, which is one of the factors for successful grafting. Theoretically, completely matching the cambium layers of the rootstock and scion is the ideal grafting effect, but it is difficult to achieve in practice, so we strive to maximize the area of contact.
Five, the temperature, moisture, and oxygen conditions during grafting:
Temperature is a necessary condition for cell activity, and only with cell activity, including cell division, can the growth of the scion be promoted. Generally, different varieties of roses can rapidly grow cells within a temperature range of 13-32°C. Outdoor grafting should be done during the period of the year when the temperature is as mentioned above and the cambium is actively growing, which usually occurs in spring, early summer, and September and October. The callus tissue formed by the cambium is composed of thin-walled and plump cells, which can easily lose water and dry out, causing the scion to wither and die. Therefore, the joint must be tightly bound to maintain tissue moisture. At the same time as the callus tissue cells rapidly divide, respiration often accompanies, and oxygen is indispensable at this time. Therefore, using plastic tape to bind the joint has the dual effects of preserving moisture and promoting respiration.
The above introduction to the top 5 factors affecting the survival rate of grafted tree roses is the full content, hoping to help you, and at the same time, I hope everyone comes to see more green plant and flower experience and common sense!