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Method for cultivating seedless eggplant variety

An eggplant and seed technology, applied in the agricultural field, can solve problems such as unreachable, hidden dangers, safety of genetically modified varieties, etc.

Inactive Publication Date: 2012-09-19
CHONGQING ACAD OF AGRI SCI
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  • Summary
  • Abstract
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Problems solved by technology

However, due to the need to manually apply hormones to each flower in this method, the labor cost increases. In addition, due to the application of a large amount of exogenous hormones, the eggplant may have potential quality and safety hazards caused by exogenous hormones; and once no hormones are applied, under suitable conditions There are still seeds inside the fruit
The second method can use parthenocarpic breeding materials to cultivate seedless eggplant, but it can only produce seedless eggplant in an environment that is not suitable for pollination and fertilization. Once the environment is suitable and the pistil is normally pollinated, there are still seeds in the fruit, which cannot reach Seedless requirement throughout harvest
The third method is to use genetic engineering technology to introduce auxin (-iaa) and other genes into eggplant varieties, and express them in the ovary, so as to obtain transgenic parthenocarpic eggplant materials, which are not suitable for eggplant flowering and fruiting at low temperatures. It can bear fruit under adverse conditions, and the fruit is also seedless, which cannot meet the requirement of being seedless throughout the harvesting period like the second method
And because genetically modified varieties have potential safety hazards, their promotion and application are limited

Method used

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  • Method for cultivating seedless eggplant variety
  • Method for cultivating seedless eggplant variety
  • Method for cultivating seedless eggplant variety

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Embodiment 1

[0033] The male sterile lines F16-5-8, F12-1-1, and F13-1-7 were used as female parents, and two parthenocarpic lines D-7-1 and D-16-3 were used as male parents. The method of combining sexual hybridization, backcrossing and pedigree breeding, after 11 years of breeding, identification of agronomic traits and sterility, parthenocarpy, has bred 9 eggplant functional male sterile with excellent comprehensive traits For parthenocarpic strains, the specific breeding process is as follows:

[0034] 1997: F16-5-8, F12-1-1, F13-1-7 were used as female parents, and D-7-1, D-16-3 parthenocarpic materials were used as male parents to obtain hybrid F1 generation combination.

[0035] 1998: F1 hybrids were planted and self-crossed to obtain F2 generation seeds.

[0036] 1999: F2 generation seeds were planted, identified from the plant population, and a single plant with sterility traits was selected to backcross with the corresponding transgenic male parent to obtain the BC1F1 generatio...

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Abstract

The invention relates to the technical field of agriculture, in particular to a method for cultivating a seedless eggplant variety. According to the method, two characters, namely parthenocarpy and male sterility of eggplants are integrated on the same strain to obtain a novel male sterility breeding material with parthenocarpy performance; and the parthenocarpic rate of the material is about 50 percent, and the sterile plant rate and the sterility degree are over 99 percent. Fruits of the variety are seedless or have few seeds in the whole harvest period, and the character can be stably inherited. The hybrid eggplant variety which is naturally seedless or has few seeds in the whole harvest period can be cultivated by using the eggplant breeding material by a heterosis breeding method; and the natural seedless fruit rate of the variety is about 76 percent generally. Eggplant fruits which are seedless or have few seeds can be produced by using the variety.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a method for cultivating seedless eggplant varieties. Background technique [0002] Eggplants should be eaten with young and tender fruits, and few or no seeds are an important indicator of high quality. Breeding seedless or seedless eggplant varieties is an important goal of eggplant breeding research. [0003] Usually only after pollination and fertilization can the fruit set and develop normally, and the fruit contains seeds. The phenomenon that plants can develop into normal fruits without pollination and fertilization is called parthenocarpy, and parthenocarpy fruits are usually seedless. [0004] Plant parthenocarpy can be divided into genetic type and artificially induced type, of which genetic type parthenocarpy is divided into obligate parthenocarpy and facultative parthenocarpy. Obligate parthenocarpy means that parthenocarpy is controlled by genetic genes and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
Inventor 田时炳郭军王永清罗章勇王之劲杨洋陈磊蒋长春何叶文守云唐双福洪云菊宋华
Owner CHONGQING ACAD OF AGRI SCI
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