Grafting propagation method for ornamental Chinese flowering crabapple
A technology of crabapple and grafting time, which is applied in the field of grafting and breeding of ornamental crabapple, can solve the problems of inability to use ornamental crabapple for grafting and propagation, cumbersome and complicated operation, and high grafting cost, so as to achieve the goals of increasing the number of grafting, high survival rate, and shortening the germination time Effect
Pending Publication Date: 2022-07-05
北京市陶然亭公园管理处
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In the article "Experimental Research on Introducing New Varieties of Israel Soft Seed Pomegranate Using Cryptographic Bud Grafting" reported in the 11th issue of "Chinese Horticultural Digest" in 2014, a method of grafting using cryptographic buds is reported. The method is to collect scions during the growing season, Grafting is carried out using the germination force of cryptobuds. The core technology for the survival of grafting is generally to use split grafting. After grafting, bagging is used to keep moisture, and an arch shed is set up to achieve double moisture retention, so that the scion and rootstock grow synchronously. However, this method requires bagging to keep moisture and erecting. Measures such as arched sheds are cumbersome and complicated to operate, and the cost of grafting is high. More importantly, the inventors have found that the survival rate is also very low when the hidden buds on the long strips of ornamental crabapple are used for grafting by such a method.
[0006] CN202010484786.4 discloses a method for transforming low-efficiency plum orchards. The method takes advantage of the long lifespan of the hidden buds of fruit plums, and the hidden buds at the base are easy to grow into elongated branches. The base new elongated shoots of the fruit plum trees that need to be transformed are selected and cultivated, and the variety is updated by bud grafting, and then cultivated; however, this method selects the buds of the plum varieties that need to be transformed as scions, and shoots them with hidden buds. Raw elongated branches are used as rootstocks, rather than directly adopting the hidden buds on the elongated strips as scions, so this method cannot use the hidden buds on the elongated strips of ornamental crabapple as scions for grafting and propagation
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Embodiment 1
[0066] The present embodiment implements a method for ornamental Begonia hidden bud grafting, and the method is carried out according to the following steps:
[0067] (1) Rootstock selection: choose 2-3 years old The eight-rowed Begonia seedlings were used as rootstocks, and the number was 20.
[0068] (2) Treatment of leggy strips as scions: In mid-April, select 1-2 year old and robust leggy strips on the show field Begonia (Malus Show Time), and carve buds at 2 cm above the hidden buds, and the length of the carved buds Reaching 1 / 2 the circumference of the branch, as deep as the xylem. Then use the rope to pull the leggy branches into a bow shape, nearly 90 degrees.
[0069] (3) Grafting time: 20 hidden buds that have been engraved as scions are taken off as scions when the buds are sprouted (the 4th day of budding). The specific operations are as follows:
[0070] First, wipe off the branches and leaves 10cm above the root of the rootstock of Begonia, to make the stem...
Embodiment 2
[0078] It is carried out in the same manner as in Example 1, except that Pingyi sweet tea seedlings are used as rootstocks.
Embodiment 3
[0080] The method is basically the same as that of Example 1, except that the grafting is directly carried out by using hidden buds, and the bud carving and branch pulling are not carried out.
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The invention relates to an ornamental crabapple grafting method which comprises the following steps: selecting a spindling strip on an ornamental crabapple plant, and carrying out bud carving treatment on a hidden bud on the spindling strip; the spindling strips subjected to bud carving treatment are subjected to branch pulling treatment till hidden buds germinate; taking off germinated hidden buds and grafting the germinated hidden buds to the rootstock in an inverted T-shaped bud grafting mode; the inverted-T-shaped budding position is wrapped with wet soil, and the wrapped wet soil is removed after 8-12 days (for example, about 10 days); sprouts sprouted on the rootstocks are removed, and pinching treatment is conducted on new shoots, so that grafted seedlings are obtained. According to the method, the cryptobuds on the spindling branches can be used as propagation materials, waste can be turned into wealth, the utilization rate of the cryptobuds can be increased, and the method has the advantages of being easy and convenient to operate, low in cost, short in period, quick in effect taking, high in survival rate and the like, and is especially suitable for breeding of new and excellent ornamental crabapple varieties with rare seed trees.
Description
technical field [0001] The invention relates to a grafting and breeding method for ornamental begonias, in particular to a method for grafting using hidden buds on leggy branches of ornamental begonias. Background technique [0002] Ornamental Begonia is a species of Rosaceae apple genus with ornamental value. Most of them are deciduous trees or small trees, mainly distributed in Eurasia and North America. China is the resource distribution center of Begonia. In the 18th century, Chinese Begonia varieties spread to Western countries and hybridized with local varieties for many times under natural conditions. These new and excellent varieties of ornamental Begonia have great market potential. [0003] For the newly cultivated Begonia variety, in the early stage of promotion, due to the scarcity of the original species of mother trees, the most important thing is to be able to use a small number of samples (scions) and use the grafting technology to rapidly multiply in large ...
Claims
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IPC IPC(8): A01G2/30
CPCA01G2/30
Inventor李剑雄徐小云郭冉马媛媛王海滔
Owner北京市陶然亭公园管理处