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Rejuvenizing method for grafted rootstock

A treatment method and rootstock technology, applied in the field of juvenile treatment of plant propagation materials, can solve the problems of poor plant growth and low survival rate of grafting, and achieve the effects of improving the site environment, facilitating the survival of grafting and promoting the regeneration of side branches

Inactive Publication Date: 2011-04-13
杜丽群
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention and the technical task proposed are to graft the scion directly on its stem and main branch according to the conventional big root stock grafting, because the root stock is aging, the problem of grafting survival rate is low and the plant growth is poor; It is proposed to implement heavy pruning on older rootstocks first, and after fertilization management, to promote the germination of new branches

Method used

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  • Rejuvenizing method for grafted rootstock
  • Rejuvenizing method for grafted rootstock

Examples

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Effect test

Embodiment 1

[0034] The young treatment of embodiment one sassafras tree grafting stock

[0035] 1. General situation The existing 10-year-old sassafras tree plantation is used to transform it into a seed collection garden with an area of ​​0.5 mu and 30 plants in total.

[0036] 2. Clean up the garden, loosen the soil and tend the sassafras forest, remove weeds and shrubs,

[0037] 3. Heavy pruning Cut off the upper part of the trunk of each sassafras tree in winter, and smooth the saw edge with a knife. Keep the trunk height 80-100cm (see figure 2 ).

[0038] 4. Fertilization management Apply 50kg of manure and 0.5kg of compound fertilizer to each rootstock. Strengthen soil management and prevent pests and diseases.

[0039] 5. Promote germination and growth. After the sawing of the tree germinates, pay attention to thinning out the thin and weak sprouts, and only keep 2 to 3 strong sprouts for each plant.

[0040] 6. Grafting Carry out grafting when the sap is about to flow in spr...

Embodiment 2

[0042] Embodiment two wild pear tree grafting

[0043] 1. General situation Use 2 35-year-old wild pear trees, change the species, and use huanghuali for grafting.

[0044] 2. Clean up the field with embodiment one.

[0045] 3. Heavy pruning Keep a backbone main branch every 50cm on the trunk, cut off the top of the tree and the upper part of each main branch, and leave a pile of about 15cm in length on the main branch (see figure 1 ).

[0046] 4. Fertilization management is the same as embodiment one.

[0047] 5. Promoting bud growth is the same as in Example 1.

[0048] 6. Grafting is the same as embodiment one.

[0049] Present embodiment scion graft healing survival rate is 86%, improves 41% compared with contrast; The third year fruit output after grafting is 215% of contrast output.

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Abstract

The invention discloses a rejuvenizing method for a grafted rootstock. In the conventional method for grafting an older large rootstock, a scion is directly grafted to the stem and the bough of the rootstock, and low grafting survival rate and the poor growth of the plant are caused by the aging of the rootstock. In the invention, the older large rootstock is rejuvenized, and the rejuvenizing method comprises the following steps of: firstly, severely trimming the older large rootstock, and promoting the stem and the bough to grow a robust coppice shoot through fertilizer cultivation management; then, grafting the scion to the coppice shoot. The grafting survival rate of the invention is high, generally more than 85% and increased by 25-41% in comparison with that of the contrast plant; the grafted plant grows fast, and the tree height growth amount in the current year is increased by 30-50% in comparison with that of the contrast plant; the yield of the first fruiting year is increased by more than 50% in comparison with that of the contrast plant; and the life of the grafted plant can be prolonged.

Description

technical field [0001] The present invention relates to a method for juvenile treatment of plant propagation materials, especially a kind of juvenile treatment method of old and large rootstocks of trees and fruit trees, after heavy pruning and cultivation management, after promoting the germination of the cut, the scion is grafted on the juvenile and healthy sprouts. Approach. Background technique [0002] Rootstock has a great influence on tree grafting. It is the basis of fruit trees and the basis of tree grafting. The rootstocks should be based on local rootstocks, usually 1-2 years old, vigorously growing, and well-developed rootstocks. Cutting seedlings and seedlings with underdeveloped root systems, or older rootstocks (older rootstocks), are generally not suitable for use as rootstocks. However, in the following situations, it is also necessary to use older rootstocks for grafting: [0003] 1. High-grain replacement The existing fruit trees are older and need to b...

Claims

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Application Information

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IPC IPC(8): A01G1/06
Inventor 杜丽群
Owner 杜丽群
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