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A kind of breeding method of spinach female line

A technology for female plants and spinach, which is applied in the field of selection and breeding of female spinach lines, can solve the problems of long flowering period of spinach, few pure female plants, and untimely emasculation, thereby saving labor costs and improving seed yield. , the effect of saving labor costs

Active Publication Date: 2022-07-29
SHANDONG AGRI & ENG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • A kind of breeding method of spinach female line
  • A kind of breeding method of spinach female line

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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 Shandong Agricultural University test station, it was found that the Japanese large-leaf spinach variety had a relatively high rate of strong female plants and pure female plants. The natural group sports ratio was: pure female plants: nutrient male plants : absolute male plant: strong female plant: weak female plant﹦43.9:35.6:9.8:7.3:3.4. This variety of spinach with disease resistance, thick leaves and late bolting was planted in flowerpots 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, firstly remove absolute male plants and vegetative male plants, leaving only pure female plants and strong female plants (that is, plants with only a few male flowers and mo...

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Abstract

The invention discloses a method for breeding spinach female lines. The rate of female plants reaches 100% through breeding. The invention simplifies the breeding procedure, solves the difficulty of artificial emasculation during breeding, and speeds up the breeding process. The invention can effectively improve the efficiency of the traditional hybridization method of spinach, improve the purity of seeds, and effectively increase the yield of seeds.

Description

technical field [0001] The invention relates to the technical field of agricultural planting, in particular to a breeding method for female spinach lines. Background technique [0002] Spinach (Spinacie oleracea L.) is one of the most cold-resistant types of vegetables. The above-ground parts can endure low temperatures 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), with a short growth period, which is conducive to intercropping, and can improve the multiple cropping index in previous, subsequent and intercropping crops, increase unit yield, and increase listing amount, and 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 million t...

Claims

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Application Information

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Patent Type & Authority Patents(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