A kind of breeding method of dwarf cowpea variety with long pedicels

A long pedicel and cowpea technology, applied in the field of genetic breeding, can solve the problems of narrow parental selection, difficult breeding, and lack of long pedicel dwarf cowpea varieties and germplasm resources

Inactive Publication Date: 2015-11-25
NANJING INST OF VEGETABLE SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with the general conventional breeding method, there is a narrow range of parental selection in the selection of long-pedicle dwarf cowpea varieties, and it is almost impossible to find long-pedicle dwarf cowpea varieties and germplasm resources. Therefore, the selection is difficult and the effect is poor.
At present, there is no domestic patent related to the breeding of dwarf cowpea with long pedicels

Method used

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  • A kind of breeding method of dwarf cowpea variety with long pedicels

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Embodiment 1

[0015] The "Tai Li Mei Bao" cowpea variety bred by Jiangxi Huanong Seed Industry Co., Ltd. was self-crossed for 2 generations to obtain the inbred line cg‐1‐3. figure 1 shown. Characteristics of the inbred line cg-1-3: sprawling, mid-to-late maturity, growth period 90-100 days; pedicel length 35cm-45cm, pod length 72cm-79cm, diameter 0.72cm-0.8cm, single pod weight 26g-34g , pod oil green, oblong strip shape, tight flesh, aging resistance, no bulging seeds, no rat tail, high double pod rate, 18-23 seeds per pod; crisp and tender pod meat, less fiber, neat pod shape, Heat-resistant and humidity-resistant; the field shows strong disease resistance, and the plants grow vigorously.

[0016] The characteristic characteristics of "American unstented cowpea" variety: dwarf plant, erect, plant height 50cm-60cm, strong branching, short internodes, thick pedicel, unlimited pod habit, pedicel length 25cm-35cm, each plant There are 20-25 pods successively, the pods are 30cm-50cm long, 0...

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Abstract

The invention discloses a breeding method for a long-pedicel dwarf type asparagus bean variety. According to the breeding method, a selfing line cg-1-3 of a Tailimeibao asparagus bean variety used as a female parent and an American non-bracket asparagus bean variety is used as a male parent for carrying out hybridization; then progeny selfing, separation and purification are carried out; a high-generation selfing line a-3-2-5-4-2-1-5-1 with a stable inheritable character is obtained after eight generations of selfing and breeding of single strains; the variety is named as long-pedicel dwarf type asparagus beans after variety comparative tests for two years. The long-pedicel dwarf type asparagus bean variety is bred by adopting the method and the problems that a selection range of parents is narrow and the effect is poor in the process of performing a common asparagus bean breeding method to breed the long-pedicel dwarf type asparagus bean variety are solved; the bred asparagus bean variety has good comprehensive properties; pedicels are long and hard and the long-pedicel dwarf type asparagus bean variety has the characteristics of high quality, high yield, labor saving and cost saving.

Description

technical field [0001] The invention belongs to the field of genetic breeding, and relates to a breeding method for long-pedicled dwarf cowpea varieties. Background technique [0002] The existing dwarf cowpea variety selection adopts a general conventional breeding method, that is: using the existing dwarf cowpea variety resources as parents, paired and crossed, and the hybrid offspring undergo self-crossing, separation, and purification for 5 to 7 generations , made by manual selection. However, with the general conventional breeding method, there is a narrow range of parental selection in the selection of long-pediciated dwarf cowpea varieties, and it is almost impossible to find long-pediciated dwarf cowpea varieties and germplasm resources. Therefore, the selection is difficult and the effect is poor. At present, there is no relevant patent on the breeding of dwarf cowpea with long pedicels in China. Contents of the invention [0003] The purpose of the present inve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02A01H1/04
Inventor 王强王夏孙菲菲熊元忠
Owner NANJING INST OF VEGETABLE SCI
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