Multi-source quality breeding method for fruit trees

A kind of fruit tree variety and fruit tree technology, applied in the field of multi-source quality breeding of fruit trees, can solve the problems of extinction, resource destruction, and failure to effectively exert the brand value of famous product varieties

Active Publication Date: 2017-09-15
SHANDONG AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Xinjiang wild apple and its red meat variant (Malus sieversiif.neidzwetzkyana) are the ancestors of cultivated apples in the world. Not only is it rich in genetic diversity, but also the fruit is rich in flavonoids and other nutritional and health components. It is an important gene pool for stress resistance and quality breeding , but due to many reasons such as farmland reclamation, the resources are severely damaged and endangered. It is imminent to further strengthen the research on protection and utilization.
The 'Laiyangci' pears from Shandong and the 'Dangshansu' pears from Anhui are well-known traditional local varieties of the white pear system (Pyrus bretschneideri Rehd.) in my country. Long-term cultivation not only has good adaptability to the local natural climatic conditions , and all have high market popularity, but with the improvement of people's consumption level, there are certain defects or deficiencies, the brand value of famous products cannot be effectively played, and further improvement is needed

Method used

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  • Multi-source quality breeding method for fruit trees
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  • Multi-source quality breeding method for fruit trees

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preparation example Construction

[0086] The preparation method of the macroelement mother solution of MS basic medium: mix 1650mg NH 4 NO 3 , 1900mg KNO 3 , 440mgCaCl 2 2H 2 O, 370mg MgSO 4 ·7H 2 O and 170mg KH 2 PO 4 Dissolve in water and make up to 1L with water.

[0087] Seedling-raising substrate: The seedling-raising substrate adopted in the embodiments of the present invention is the plug substrate used for planting flower seedlings produced by Shandong Yijing Garden Co., Ltd., which is generally produced and sold by various flower seedling companies.

Embodiment 1

[0088] Embodiment 1, apple breeding

[0089] 1. Preparation of mixed pollen

[0090] (1) Preparation of pollen

[0091] 1. Hybridization (carried out in Luntai County, Xinjiang)

[0092] In April 2006, the pollen of 'Jinshuai' apple was used to pollinate the emasculated 'Tal Alma' apple, and the F 1 hybrid seed, the F 1 After the hybrid seeds are washed, they are placed in a fresh-keeping room of a refrigerator at 1-3°C for stratification treatment for about 60 days (the purpose is to release the dormancy of the seeds by satisfying the required cooling capacity).

[0093] 2. Seedling cultivation in greenhouse

[0094] In December, 2006, the seeds that completed step 1 were sown in a nutrient pot (3-5 seeds were planted in each nutrient pot) that completed step 1 and cultivated to a seedling height of 8-15 cm and lignification at the root neck (usually 2-3 months after sowing), and then the seedlings are transplanted to a new nutrient pot (one plant is transplanted in each...

Embodiment 2

[0154] Embodiment 2, pear breeding

[0155] 1. Hybridization (carried out in Tarim, Xinjiang)

[0156] In April 2003, the pollen of ‘Laiyangci’ pear was used to pollinate the emasculated ‘Xinli No. 7’ pear, and the F 1 hybrid seed, the F 1 After the hybrid seeds are washed, they are placed in a fresh-keeping room of a refrigerator at 1-3°C for stratification treatment for about 60 days (the purpose is to release the dormancy of the seeds by satisfying the required cooling capacity).

[0157] 2. Greenhouse seedling cultivation (in Tai'an, Shandong)

[0158] In December 2003, the F obtained in step 1 1 The hybrid seeds are sown in a nutrient pot (3-5 seeds are planted in each nutrient pot) that is equipped with a seedling-raising substrate and cultivated until the seedling height is 8-15cm and the root neck is lignified (usually 2-3 months for sowing), and then The seedlings are transplanted to new nutrient pots (every nutrient pots are transplanted with 1 plant) that are eq...

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Abstract

The invention discloses a multi-source quality breeding method for fruit trees. The fruit tree breeding method provided by the present invention includes the following steps: (1) pollinating fruit tree variety A with mixed pollen to harvest BC1 hybrid seeds; the mixed pollen is a mixture of fruit trees of the same species as fruit tree variety A (2) take the BC1 hybrid seeds obtained in step (1), break the dormancy and sow them in a greenhouse and raise seedlings; (3) transplant the seedlings obtained in step (2) to the field, and screen out the seedlings with excellent comprehensive characters. plant. The present invention has great value for fruit tree breeding.

Description

technical field [0001] The invention relates to a multi-source quality breeding method for fruit trees. Background technique [0002] Genetic diversity is not only an important barrier to maintain ecological security, but also the material basis for the sustainable development of modern agriculture. The survey results show that, in the past few decades, more than 1,000 apple varieties bred at home and abroad, 80% are the hybrid, seed or bud-selected offspring of 'Jinshuai', 'Marshal' and 'Guoguang' varieties. It often leads to the narrowing of the genetic basis of the species, the increase of genetic vulnerability, and the decline of adaptability and stress resistance. The same problems also exist in field crops such as wheat and corn. Therefore, expanding the genetic base is one of the important goals of cultivated plant breeding. [0003] Breeding for quality and stress resistance is an important direction of fruit tree breeding. my country is the origin and evolution c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02
Inventor 陈学森毛志泉姜远茂王楠许海峰张艳敏吴树敬冯守千陈晓流刘静轩王得云
Owner SHANDONG AGRICULTURAL UNIVERSITY
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