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Method for breeding female spinach strain

A technology of female plants and spinach, which is applied in the field of breeding of spinach female lines, can solve the problems of untimely emasculation, less pure female plants, and influence on seed purity, so as to simplify the breeding procedure, speed up the breeding process, The effect of solving the difficulty of artificial castration

Active Publication Date: 2020-04-28
SHANDONG AGRI & ENG UNIV +1
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Problems solved by technology

2. Nutritious male plant, although there are only male flowers on the plant, but the flowers have large leaves and late flowering
The disadvantage is that pure female plants only account for 20-30% of spinach natural populations, and the number of pure female plants is too small for seed production and low yield
Spinach has a long flowering period, and if emasculation is not timely, it is easy to cause confusion and affect the purity of seeds
When removing miscellaneous, remove the strong female plants, absolute male plants, and vegetative male plants on the female parent line every morning, which is labor-intensive and time-consuming

Method used

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  • Method for breeding female spinach strain
  • Method for breeding female spinach strain

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Embodiment approach 1

[0022] A method for breeding spinach female lines, comprising the following steps:

[0023] sowing

[0024] In the spring of 2013, when investigating the basis of spinach fertility at the experimental station of Shandong Agricultural University, it was found that the rate of strong female plants and pure female plants of Japanese large-leaf spinach varieties were relatively high, and the proportion of natural group fertility was: pure female plants: vegetative male plants : Absolute male plant: Strong female plant: Weak female plant﹦43.9: 35.6: 9.8: 7.3: 3.4. This spinach variety with disease resistance, thick leaves, and late bolting was planted in flower pots in October of that year, and watered and fertilized under normal management.

[0025] Fertility survey at the beginning of flowering next spring

[0026] In the spinach population, the absolute male plants and vegetative male plants are first gradually removed, leaving only pure female plants and strong female plants ...

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Abstract

The invention discloses a method for breeding a spinach female strain. The method enables a female strain rate to reach 100% through breeding, simplifies a breeding program, solves a problem of manualemasculation during breeding, and accelerates a breeding process. The method can effectively improve efficiency of a traditional spinach hybridization method, improve seed purity and effectively increase seed yield.

Description

technical field [0001] The invention relates to the technical field of agricultural planting, in particular to a method for breeding female spinach lines. Background technique [0002] Spinach (Spinacie oleracea L.) is one of the most cold-resistant vegetables. The aboveground part can endure the low temperature of -6°C to -8°C for a short period of time. Therefore, fresh vegetables can be produced in the open field throughout the winter in the Yangtze River Basin. Spinach can be harvested from 5-6 leaves (that is, 30-40 days after sowing), and the growth period is short, which is conducive to intercropping. It can improve the multiple cropping index in the front, back and intercropping crops, increase the yield per unit area, and increase the market Quantity, adjust the surplus and shortage of vegetable varieties. Because spinach is relatively cold-resistant, it creates favorable conditions for quick-frozen processing and export. The country processes and exports 13 milli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/04A01H1/02
CPCA01H1/04A01H1/02
Inventor 段曦史庆华郝树芹王猛李杰国淑梅杨向黎魏星陈聪张翔
Owner SHANDONG AGRI & ENG UNIV
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