Method for shortening juvenile period of apple hybrid seedlings

A technology for seedlings and apples, applied in botany equipment and methods, horticulture, applications, etc., can solve problems such as unsatisfactory effects, and achieve the effects of saving field management costs and resource input, shortening childhood, and shortening the fruiting time

Active Publication Date: 2012-09-12
SHIJIAZHUANG POMOLOGY INST OF HEBEI ACADEMY OF AGRI & FORESTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to explore the principle of apple seedling infancy and infancy and improve breeding efficiency, scholars from various countries have carried out a lot of research work. The preliminary research shows that the infancy of apple seedlings is an insurmountable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific comparative example 1

[0021] Concrete comparison case 1, base anvil + P 22 + Jonagold natural seed (Jonagold, apple variety, this seed is the natural seed of Jonagold harvested in 2004, and the seedling obtained after sowing in 2005) The semi-finished seedlings were planted in 2006, with a total of 70 plants, After investigation, there were 4 fruiting plants in 2008, the rate of fruiting plants was 5.7%, the rate of fruiting plants in 2009 was 17.1%, and the rate of fruiting plants in 2010 reached 41%. In 2010, there were only 5 natural seeded trees that had not undergone high-position budding on dwarf stock, and the fruiting rate was only 8.6%.

specific comparative example 2

[0022] Concrete comparative case 2. The survey found that base stock + SH + 19-1-1 × US No. 8 (19-1-1 is an excellent single line of apple bred by the Hebei Provincial Fruit Tree Research Institute, 19-1-1 × US No. 8 is a hybrid with 19-1-1 as the female parent and American No. 8 as the male parent. The hybrid seeds were harvested in 2006 and the seedlings were sown in the spring of 2007) with a total of 103 plants. In 2011, the first plant bloomed. There were 10 flowering plants, the rate of flowering plants was 9.7%, 7 plants obtained fruit, and the rate of fruiting plants was 6.8%, while the seedlings grew naturally, and the rate of flowering plants was 0%.

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PUM

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Abstract

The invention discloses a method for shortening the juvenile period of apple hybrid seedlings, comprising the following steps of: culturing rootstock seedlings, culturing dwarf interstock seedlings, culturing apple hybrid seedlings, grafting seedlings at a high position, performing final-period management on trees and the like. According to the method, can be realized, and the semi-finished seedlings grafted at a high position after planting can blossom and fruit after growing to the 4th year, and have the fruiting plant rate up to 20% in the 5th year and up to 40% in the 6th year. Traditional seedlings need 8-10 years of juvenile period, so the juvenile period of the seedlings is shortened by 4 years; and compared with a traditional method, the plant rate after the juvenile period is greatly increased as well. According to the invention, measures of curing dwarf interstock seedlings early, sowing seedlings, taking the high-position buds of the seedlings and grafting the high-position buds to the dwarf interstock seedlings, and then planting, and other steps are adopted, and interstock grafting is performed on the apple seedlings, thus greatly shortening the juvenile period of the apple seedlings, shortening breeding process and fruiting time, increasing breeding efficiency, and saving lots of field management cost and resource investment simultaneously.

Description

technical field [0001] The invention relates to hybrid breeding, in particular to a method for shortening the juvenile period of apple hybrid seedlings. Background technique [0002] The childhood period of apple hybrid seedlings refers to the period from the germination of apple seeds to the time before the seedlings have the ability to form flower buds. The childhood period of apple seedlings is relatively long, and it generally takes 8 to 10 years without the participation of relevant cultivation methods. Hybrid breeding is the most traditional, safe and effective method, and it is still an irreplaceable main method for apple breeding. This determines the characteristics of long work cycle and large investment in apple hybrid breeding. The emergence of a good variety often requires decades and generations of unremitting persistence. In order to explore the principle of apple seedling infancy and infancy and improve breeding efficiency, scholars from various countries ha...

Claims

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Application Information

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IPC IPC(8): A01G1/06
Inventor 鄢新民李学营王献革郝婕冯建忠
Owner SHIJIAZHUANG POMOLOGY INST OF HEBEI ACADEMY OF AGRI & FORESTRY SCI
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