Fast grafting seedling culture method using cocoa twigs

A technology for grafting seedlings and twigs, which is applied in grafting, application, cultivation, etc., can solve the problems of restricting the grafting and breeding of cocoa varieties, the survival rate of grafting, and the long seedling cycle, so as to improve the survival rate and efficiency of cocoa grafting and shorten the seedling time The effect of cycle and easy operation

Pending Publication Date: 2019-08-13
SPICE & BEVERAGE RES INST CHINESE ACAD OF TROPICAL AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional cocoa budding method is to graft when the rootstock stem is 0.8-1.2cm thick. The rootstock meets this requirement, and it takes 12-18 months. Under good management, the seedlings will emerge from the nursery 5 months after grafting; when the grafting time is suitable, grafting Under the premise of skilled operation and good management, the survival rate of cocoa budding is 70%
In addition, when the current-year branch diameters of some excellent mother trees of cocoa are as thick as 0.6-1.0 cm suitable for bud grafting, the axillary buds on the branches have fallen off, resulting in extremely low survival rate of grafting, which limits the grafting and breeding of some fine cocoa varieties
It can be seen from the above that the traditional grafting seedling raising technology has problems such as long seedling raising cycle and low breeding efficiency

Method used

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  • Fast grafting seedling culture method using cocoa twigs
  • Fast grafting seedling culture method using cocoa twigs
  • Fast grafting seedling culture method using cocoa twigs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] 1. Rootstock cultivation

[0052] (1) Seed selection

[0053] Choose a mother tree with strong growth, more than 3 years of fruiting, high and stable yield, and strong stress resistance, and harvest mature fruits with correct fruit shape, full development and full maturity on the trunk from October to November. Cocoa seeds are recalcitrant seeds, there is no dormancy period, and once mature, they need to be treated in time to raise seedlings. Cut open the fruit, take out the seeds, wash off the pulp attached to the seeds, and select the well-developed, substantial, and oval seeds.

[0054] (2) Germination

[0055] In a cool place, build a nursery pond with stones or bricks, spread river sand about 30cm thick in the pond, sprinkle 8g carbendazim wettable powder per square meter for disinfection, and spread the prepared seeds on the sand bed , and then cover sand 2 ~ 3cm, the sand bed is always kept moist, and the seedbed is covered with 50% sunshade net.

[0056] (3)...

Embodiment 2

[0074] Embodiment 2: contrast with the survival rate of cocoa conventional grafting method

[0075] From February to March 2018, the method of the present invention was compared with the conventional grafting method. For the specific operation of conventional grafting methods such as bud grafting, branch grafting and abdominal grafting, please refer to "A Method for Breeding Cocoa Seedlings" (ZL 2014 10842628.6) and "A Method for Grafting and Replanting Mature Cocoa Trees" (ZL 201610284410.2). See Table 2 for the grafting survival rates of different grafting methods.

[0076] Table 2 Effects of different grafting methods on the survival rate of cocoa grafting

[0077]

[0078] Note: Different letters marked after the average survival rate indicate significant differences (P<0.05)

[0079] Different grafting methods have different effects on the survival rate. It can be seen from Table 2 that the survival rate of grafting using the method of the present invention can reac...

Embodiment 3

[0080] Embodiment 3: compare with cocoa conventional grafting method grafting efficiency

[0081] In order to further illustrate the advantages of the present invention, from March to April 2019, 2 workers were trained as grafting operators, and TASsr12 was used as the scion, and the method of the present invention, abdominal grafting, and bud grafting were used to carry out cocoa grafting seedling breeding, and the method of the present invention was compared Grafting efficiency compared to conventional grafting methods.

[0082] Table 3 Effects of different grafting methods on grafting survival rate and efficiency

[0083]

[0084] It can be seen from Table 3 that the grafting efficiency of the method of the present invention is more than 1 times higher than that of the conventional grafting method, and the workers can master the skills of the method of the present invention with a little training, and the grafting survival rate is significantly higher than that of the co...

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Abstract

The invention relates to the technical field of agriculture and forestry grafting, in particular to a fast grafting seedling culture method using cocoa twigs. The method has the advantages that scionsare the current-year semi-lignified twigs of a cocoa improved-variety mother tree, and the stock is 5-month cocoa seedlings; the cells and tissue of the scions and the stock are vigorous in growing power and high in healing ability, grafting survival rate reaches up to 90%, and the grafting survival rate is increased by 25% as compared with that of traditional grafting; compared with a traditional grafting method, the method is simple in operation and more than doubled in efficiency; the method only needs 10-12 months from stock cultivation to nursery leaving.

Description

technical field [0001] The invention relates to the technical field of agriculture and forestry grafting, in particular to a method for rapid grafting and seedling cultivation of cocoa twigs. Background technique [0002] Cocoa is one of the three major beverage crops in the world. Its seeds are mellow, nutritious, and nourishing. It is the main raw material for making chocolate, beverages, and pastries. The world's cocoa harvest area reaches 10 million hectares, with a total output of over 4.5 million tons. It is one of the most important bulk products in international trade. Cocoa is suitable for planting in Hainan, my country. With the increasing domestic demand, the annual import volume is increasing year by year. The cocoa industry is becoming one of the emerging tropical crop industries in my country. [0003] Cocoa is a cross-pollinated plant, and the offspring of seedlings vary greatly, and the yield and quality of a single plant vary greatly after production, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G17/00A01G2/30
CPCA01G17/005A01G2/30
Inventor 李付鹏伍宝朵赖剑雄秦晓威吴刚赵溪竹
Owner SPICE & BEVERAGE RES INST CHINESE ACAD OF TROPICAL AGRI SCI
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