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Method for producing carrot hybrid seed and appraising purity

A production method and a technology for purity identification, applied in the directions of botanical equipment and methods, applications, plant genetic improvement, etc., can solve problems such as identification of impossibility of purity, instability of male sterility, affecting the purity of hybrids, etc., and reduce the cost of purity identification. , The results of hybrid purity identification are reliable, and the effect of shortening the purity identification period

Inactive Publication Date: 2006-06-07
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cycle of breeding male sterile lines of carrots is long, the technology is complicated, and there are still phenomena such as the instability of male sterility affecting the purity of hybrids.
The purity of hybrids produced by male sterile lines cannot be identified at the seedling stage

Method used

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  • Method for producing carrot hybrid seed and appraising purity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Yellow-black 9303×Jinwucun inbred line

[0017] ↓

[0018] Super Kuroda Gosun (Hybrid)

[0019] (The length of the fleshy root is 15-20cm, and the transverse diameter is 4--5cm. The three-red rate is 95%, the stem is small, the fleshy root is cylindrical, and the quality is good. The yield is 16% higher than that of the main cultivar "Heitian Wucun" in production. .Suitable for processing.)

Embodiment 2

[0021] Huangqicun×9531 inbred line

[0022] ↓

[0023] Super seven inch red (hybrid)

[0024] (the fleshy root is cylindrical, the length of the fleshy root is 20-25cm, and the transverse diameter is 4-6cm. The three-red rate reaches 93%, the heart column is small, the quality is good, and the yield is 18% higher than that of the "seven-inch red" variety cultivated in production. Suitable for processing.)

Embodiment 3

[0026] Huanghei 9303×refers to 9455 inbred line

[0027] ↓

[0028] Nongda Xianfeng (hybrid)

[0029] (The fleshy root is about 15cm long, 3-4cm thick, 97% three-red, the stem is small, the fleshy root is cylindrical, uniform, crisp, suitable for fresh food, and of good quality.)

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Abstract

The method of producing carrot hybrid and appraising its purity utilizes carrot variety Huanghei 9303 with yellow character as female parent and normal green carrot variety as male parent. After the hybrid is seeded in field or in room, the seedling with yellow leaf is pseudo hybrid and the seedling with green leaf is true hybrid. The present invention opens one new way for utilization of heterosis of carrot and promotes the first filial generation production of carrot variety. The present invention has stable yellowing character, reliable appraisal of pseudo hybrid, shortened purity appraisal period and lowered purity appraisal cost.

Description

technical field [0001] The invention relates to a production and purity identification method of vegetable crop hybrids. Background technique [0002] Carrot has high nutritional value and is also an important raw material for processing. It is an important vegetable widely cultivated at home and abroad. At present, both hybrids and conventional varieties are available in carrot production, but conventional varieties are still the main varieties in my country, and hybrids are not commonly used, which seriously affects the production of carrots. Due to the small size of carrot flowers and very few single fruit seeds, it is impossible to produce hybrids by artificial detasseling. At present, the first generation of carrot hybrid seeds at home and abroad can only be produced using the male sterile line method, that is, the excellent carrot parent materials are bred into male sterile lines. , and then use this male sterile line as the female parent and other parents to prepare ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
Inventor 沈火林
Owner CHINA AGRI UNIV
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