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New high-quality seed reserving method of spring cabbage

A technology of cabbage and germplasm, applied in botany equipment and methods, seed and rhizome treatment, horticulture, etc.

Inactive Publication Date: 2012-12-12
INST OF VEGETABLE & FLOWERS CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] According to the gaps and demands in the above-mentioned fields, the present invention provides a new method for improving the high survival rate of excellent spring cabbage germplasm selected and retained in spring, which has the advantages of simple operation, low cost, and high survival rate of preserved seed plants. , which solves the problems in the above fields

Method used

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  • New high-quality seed reserving method of spring cabbage
  • New high-quality seed reserving method of spring cabbage
  • New high-quality seed reserving method of spring cabbage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1. Determination of various parameters in the method of the present invention.

[0027] The inventor of the present invention first thought of and tried a new spring cabbage seed strain preservation strategy in 2006, which is the same as the solution strategy provided by the present invention: "healthy bulb selection-dehydration treatment-refrigeration-pre-transplanting treatment "Four key steps, and the parameters of each step were further determined in the following three consecutive years. The comparison test shows that the preservation and survival rate of the seed plants is obviously superior to the axillary bud cutting method and the tissue culture propagation method of the prior art at that time.

[0028] Steps:

[0029] (1) Pre-treatment of the selected seed strains in a low-temperature cabinet for refrigeration

[0030] Dig up the selected spring cabbage excellent germplasm, shake off the root soil gently; remove the outer leaves, but be careful n...

Embodiment 2

[0044] Embodiment 2 comparative test

[0045] The treatment steps of the low-temperature refrigeration method in this experiment are the same as those in Table 1 of Example 1. The dehydration treatment time is 7 days, the refrigeration temperature is 2-5° C., and the water content of the sand bed is such that the sand can be grasped into balls without dripping water.

[0046] The axillary bud cutting method refers to the records of Li Shuxuan et al. ("Cabbage and Cabbage Cutting Rice Law Enforcement", Plant Physiology Communication, 1980, 1: 41-44): after the leaf balls are cut off, the axillary buds grow, and when the axillary buds grow to 5- 6 leaves, cut off for cuttings.

[0047] The method of tissue culture expansion refers to the records of Zhang Zhiqiang et al.

[0048] The results are shown in Tables 3-4 below.

[0049] Table 3 Effects of axillary bud cutting method and freezer method on the survival rate of spring cabbage plants

[0050]

[0051] Table 4. Compar...

Embodiment 3

[0055] Adopting exactly the same operation steps as in Example 2, after multi-generation breeding of the excellent cabbage variety 88-62 introduced from the Netherlands in 1988, an excellent spring cabbage inbred line 88-62-1-1 was obtained. The color of the ball is greener, the shape of the ball is nearly round, and the resistance to cracking is strong. Using 88-62-1-1 as the male parent and the female parent CMS87-534, an excellent cabbage hybrid 'Zhonggan 192' was prepared (Zhuang Mu et al. "A New Spring Cabbage Variety 'Zhonggan 192'", Acta Horticultural Science 2010, 37( 11): 1881-1882).

[0056] In addition, during the implementation of the technical solution of the present invention, there are also the following precautions:

[0057] 1. When selecting reserved seed plants, try to choose seed plants with tightly packed balls, no disease in the roots and leaf balls, and few or no ball worm eyes. Be careful not to damage the shortened stems when removing the outer leaves....

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Abstract

The invention relates to a new high-quality seed reserving method of spring cabbage, belonging to the technology of plant breeding. The method comprises the following steps: (1) selecting seeds: selecting good matured spring cabbage plants from a field in spring and then digging up the plants to be used as seed plants for seed reserving; (2) dehydrating: airing the seed plants for 4-8 days in dry, ventilated and shady and cool environment; (3) refrigerating: storing the dehydrated seed plants in the low-temperature environment of 2-5 DEG C for over-summering; and (4) carrying out transplant pretreatment in autumn: taking out the stored seed plants when the highest temperature in autumn is not higher than 30 DEG C, cutting the tops and two sides of leafy heads in a cross shape from the tops of the leafy heads of the seed plants without damaging a growing point, and then temporarily planting in a prepared sand bed which has good ventilation performance, and is not directly sunned in thesunlight but has scattered light so that the colors of the partial head leaves on the upper parts of the seed plants are turned to green, and a new root is grown at the root part, wherein the sand bed is a (15-20cm)-thick seedling bed spread by sand the water content of which can lead the sand to cluster but no drip. The method provided by the invention the advantages that operation is simple andfeasible, cost is low, the survival rate of the stored seed plants is high and the like.

Description

technical field [0001] The invention relates to the technical field of plant breeding, in particular to a new method for retaining excellent germplasm of spring cabbage. Background technique [0002] Cabbage (Brassica oleracea var. capitata L.) plays a very important role in the annual supply of vegetables in my country. According to the statistics of the Ministry of Agriculture, the national cabbage planting area reached 937,300 hectares (2006 "China Agricultural Statistics"). The cultivation crops of cabbage mainly include spring, summer and autumn cabbage, and overwintering cabbage is also cultivated in the south of the Yangtze River Basin. Among them, spring cabbage is favored by consumers because it can be supplied to the market in the off-season, has few pests and diseases, and has high quality. The cultivation area in the country, especially in the northern region, is expanding year by year. However, there are many difficulties in the selection and retention of sprin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00A01C1/00
Inventor 方智远孙培田刘玉梅杨丽梅庄木王晓武张扬勇
Owner INST OF VEGETABLE & FLOWERS CHINESE ACAD OF AGRI SCI