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Fruit tree multi-provenance quality seed breeding method

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, the brand value of famous product varieties cannot be effectively utilized, and resource destruction

Active Publication Date: 2015-12-09
SHANDONG AGRICULTURAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Xinjiang wild apple and its red meat variant (Malussieversiif.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 nutritional and health components such as flavonoids. It is an important gene pool for stress resistance and quality breeding. However, due to many reasons such as farmland reclamation, the resources have been severely damaged and are on the verge of extinction. It is imminent to further strengthen the research on protection and utilization.
The 'Laiyangci' pear in Shandong and the 'Dangshansu' pear in Anhui are famous traditional local varieties of white pear system (PyrusbretschneideriRehd.) in my country. Long-term cultivation not only has good adaptability to local natural conditions, but also 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 brought into play and needs to be further improved.

Method used

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preparation example Construction

[0086] The preparation method of the macroelement mother solution of MS basic medium: mix 1650mgNH 4 NO 3 , 1900mgKNO 3 , 440mgCaCl 2 2H 2 O, 370mgMgSO 4 ·7H 2 O and 170 mg 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 provides a fruit tree multi-provenance quality seed breeding method which includes following steps: (1) performing pollination to a fruit tree in A variety through mixed pollen to obtain BC1 hybridized seeds, wherein the mixed pollen is formed by pollens from fruit trees in various varieties which are conspecific with the A variety; (2) breaking the dormancy of the BC1 hybridized seeds, sowing the BC1 hybridized seeds in a greenhouse and culturing the seedlings; and (3) transplanting the seedlings obtained in the step (2) to large fields, and selecting the plants which are excellent in comprehensive characters. The seed breeding method has important value in fruit tree seed 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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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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