Seedling-raising grafting rootstock optimization and planting method for improving quality of jackfruit

A planting method and technology of jackfruit, applied in grafting, fertilization methods, cultivation, etc., can solve the problems of fruit cracking, insufficient nutrient supply, poor cold resistance, etc., and achieve the effect of improving poor fitness and good economic benefits

Inactive Publication Date: 2021-01-29
广东农垦热带作物科学研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Step 2. Plant deeply when planting. Cover the 10 cm above the grafting joint with soil when planting, or cover the 10 cm above the grafting joint with soil in the second year of planting. After half a year, new roots have been drawn from the scion branches to improve external Insufficient nutrient supply, poor cold resistance, cracked fruit, and insufficient sweetness of fruit caused by variety rootstocks;

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  • Seedling-raising grafting rootstock optimization and planting method for improving quality of jackfruit
  • Seedling-raising grafting rootstock optimization and planting method for improving quality of jackfruit

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Effect test

Embodiment 1

[0034] With reference to Table 1, in order to select the best jackfruit rootstock, 7 kinds of jackfruit germplasms were carried out as rootstocks for rootstock cultivation and grafting experiments. The ear bar adopts local suitable species, and the semi-lignified new shoots with axillary buds are selected as bud pieces for skin grafting. Each treatment was grafted with 600 plants and repeated 3 times, and the grafting was completed after 4 months of cultivation. The test results showed that Huazhou native species (dry bud) was used as the rootstock, the growth height and thickness were the most suitable for budding, the cold resistance was the best, and the resulting fruit quality was the best. The survival rate of grafted seedlings in Huazhou is the highest, reaching 81.3%; followed by pearls, the survival rate is 81.2%; the survival rate is the lowest in Thailand No. 5, only 62.3%; The cold resistance is better, Thailand No. 5 and No. 8 are poor, and the Malaysian variety ha...

Embodiment 2

[0037] Referring to Table 2, the planting methods of grafted seedlings of other rootstocks to improve fruit quality, in order to improve the fruit quality of jackfruit grafted with other rootstocks, deep planting is adopted when planting, and the position 10 cm above the grafting interface is covered with soil when planting, or the second year of planting is carried out. Cover the position 10 cm above the grafting interface with soil. Half a year later, new roots have emerged from the branches of the scion, which can improve the problems of insufficient nutrient supply, poor cold resistance, fruit cracking, and insufficient sweetness of the fruit caused by rootstocks of foreign varieties.

[0038]

Embodiment 3

[0040] The planting density is generally 6 meters x 4.5 meters, plant 25 plants per mu, dig a hole of 80*80*60 cm, apply 10 kg of organic fertilizer and 5 kg of superphosphate as base fertilizer to each hole, and add 1 kg of quicklime to improve the soil , after planting, apply compound fertilizer 0.1kg / plant once a month, apply winter tube fertilizer 10kg / plant in December, and add superphosphate 2kg / plant; strong fruit fertilizer, apply urea 0.5kg, Potassium chloride 1-1.5 kg, superphosphate 1 kg, fulvic acid or cake fertilizer 1-2 kg; when the plant grows to a height of 1.5-2 meters, pick the heart and let it branch; Select and retain 4-6 robust, evenly distributed, and horizontally growing shoots in the four directions of the north and south as the first-level branches for cultivation. When the first-level branches are 1.5-2 meters long, pick the heart, and cultivate the second-level, leaving 3-4 branches. Evenly distributed, strong, and horizontally growing branches, all ...

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Abstract

The invention discloses a seedling-raising grafting rootstock optimization and planting method for improving quality of a jackfruit. The seedling-raising grafting rootstock optimization and planting method comprises the following steps. The aim is to select an optimal jackfruit grafting seedling raising rootstock and improve the fruit quality of the jackfruit. The jackfruit grafting seedling raising rootstock is optimally selected from a local jackfruit variety to serve as the rootstock for grafting. The grafting time is the best in May, and the growth is the fastest after grafting. In order to improve the fruiting quality of the jackfruit grafted by taking other jackfruit varieties as the rootstock, soil can be used for covering the position 10 cm above a grafting opening of bark graftingin the planting process, or soil is used for covering the position 10 cm above the grafting opening in the second year of planting, and new roots are drawn out from branches of scions after half a year, so that the problems that the jackfruit is poor in adaptability, insufficient in nutrient supply, poor in cold resistance, capable of generating cracking, capable of generating the situation thatwet buds are generated in fruiting and low in fruit sweetness due to the rootstock can be solved. After 14 months of cultivation and management, the jackfruit can be put into production, the fruit flavor is good, and good economic benefits are generated.

Description

technical field [0001] The invention relates to the technical field of jackfruit planting, in particular to a seedling-raising and grafting rootstock optimization and planting method for improving the quality of jackfruit. Background technique [0002] Jackfruit is a plant of the genus Jackfruit of the family Moraceae, an evergreen tree. Leaves leathery, spirally arranged, elliptic or obovate, 7-15 cm long or longer, 3-7 cm wide, apex obtuse or acuminate, base cuneate, margin entire when mature. Flowers monoecious, inflorescences on old stems or short branches, male inflorescences sometimes in leaf axils of branches or short branches. Conglomerates are elliptic to spherical, or irregular in shape, light yellow when young, yellowish brown when mature, with hard hexagonal tumor-like protrusions and rough hairs on the surface; drupe oblong. There are many varieties of jackfruit, which are divided into two types: "dry packaged seeds" and "wet packaged seeds" according to the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G2/30A01G17/00A01C21/00
CPCA01G2/30A01G17/005A01C21/00
Inventor 张明俊郭振粤胡达权
Owner 广东农垦热带作物科学研究所
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