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A method for high-yield hybrid seed production of parthenocarpic tomato

A technology of hybrid seed production and parthenocarpy, applied in fertilization methods, botanical equipment and methods, plant genetic improvement, etc., can solve the problems of high cost of seed production, low yield of hybrid seed production, etc., to achieve increased seed production rate, Effect of increasing pollen yield and reducing cost

Active Publication Date: 2017-11-24
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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Problems solved by technology

[0004] The present invention aims at the problems of low pollen amount of parthenocarpic tomato, low output of hybrid seed production and high cost of seed production, and provides a parthenocarpic tomato hybrid seed production which can greatly increase the yield of parthenocarpic tomato and reduce the cost of seed production. High-yield Hybrid Seed Production Method of Tomato

Method used

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Examples

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Embodiment

[0021] Parthenocarpic tomato female parent material: pink cherry tomato CP28, the root-knot nematode-resistant pink fruit hybrid first-generation cherry tomato variety 'Pantao' was used as the original material (purchased from West Cherry Tomato Garden at Dongmafang Road Crossing, Shangzhuang Town, Haidian District, Beijing ), which were selected through 7 consecutive generations of individual plants.

[0022] Parthenocarpic male parent material: pink cherry tomato CP24, the self-fertile pink cherry tomato material 'CH08-100' (from the seed bank of the Institute of Vegetables, Zhejiang Academy of Agricultural Sciences) was used as the female parent, and the pink single The sexually fruitful first-generation hybrid variety '414' (Tochigi Prefecture, Japan) was crossed and selected through 7 consecutive generations of individual plants.

[0023] A method for high-yield hybrid seed production of parthenocarpic tomato, the specific steps are as follows:

[0024] 1) Sowing and col...

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Abstract

The invention relates to the technical field of hybrid seed production, especially to a high-yield hybrid seed production method for a parthenocarpic tomato. The high-yield hybrid seed production method for the parthenocarpic tomato comprises a step of carrying out pollination and hybridization in one day before blooming of a female parent. It is discovered that the female organ of a parthenocarpic material is mature in about one day before blooming; so pollination and hybridization are carried out in one day before blooming of the female parent in the invention, which is a key factor for improvement of hybrid seed production yield. The method provided by the invention can greatly increase the hybrid seed production yield of the parthenocarpic tomato and reduce seed production cost.

Description

technical field [0001] The invention relates to the technical field of plant hybrid seed production, in particular to a method for high-yield hybrid seed production of parthenocarpic tomato. Background technique [0002] tomato( Solanum lycopersicum ) is one of the most important vegetable crops in the world, with an annual planting area of ​​about 3.989 million hectares and a total output of 108.499 million tons (FAO, 2010). Although tomato has a short history of cultivation in my country, it has become one of the main types of vegetables. Tomato is a temperature-loving vegetable, and the flowering and fruiting period has strict requirements on temperature, and the optimum temperature is 15-26°C. At present, most of the tomatoes used in production are non-parthenocarpic varieties. When the temperature is lower than 15°C, the anthers will not crack, causing low-temperature flower drop; when the temperature is higher than 33°C, the pollen loses its vitality, causing high-te...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02A01C21/00
CPCA01C21/005A01H1/02
Inventor 阮美颖杨悦俭周国治李志邈王荣青叶青静姚祝平万红建程远
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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