Method for cultivating seedless eggplant variety

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 ...

AI Technical Summary

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

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