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Optimized lettuce hybridization method

A kind of hybridization technology, lettuce technology, applied in the field of optimized lettuce hybridization technology, can solve problems such as difficulties, achieve the effect of increasing hybridization rate and overcoming incomplete castration

Inactive Publication Date: 2018-12-18
SHANGHAI ACAD OF AGRI SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Traditional lettuce hybridization methods mainly focus on detasseling technology, and the methods used are generally washing, spraying, pruning and washing, etc. However, these methods have certain difficulties in actual operation

Method used

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Experimental program
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Embodiment

[0019] Optimization of Lettuce Hybridization Method

[0020] 1 Materials and methods

[0021] 1.1 Materials and tools

[0022] High-quality lettuce seeds were provided by the Facility Horticulture Institute of Shanghai Academy of Agricultural Sciences. Alcohol, scissors, tweezers and other tools are purchased from Sinopharm.

[0023] Research methods

[0024] 1.2.1 Selection of lettuce hybrid combination

[0025] Female parent: Shenxuan No. 1 Male parent: L13009 Shenxuan No. 1 was provided by the Horticultural Institute of Shanghai Academy of Agricultural Sciences, and L13009 was quoted from the US Department of Agriculture.

[0026] Seedling planting and management of lettuce

[0027] In the Shanghai area, lettuce can generally be sown in greenhouses in mid-December, the female parent is planted in the inner border of the greenhouse, and the male parent is planted in the outer border, with a row spacing of 30 cm. Hybridization can be carried out in May-June of the follo...

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Abstract

Lettuce flowers belong to a panicle, each inflorescence contains 10-20 small flowers, the small flowers are yellow, a pistil is wrapped with a ligulate corolla and a tubular stamen, the lettuce flowers cannot be emasculated in the bud stage, and only can be emasculated in the flowering stage, and the flowering stage of the lettuce is short, so the hybridization of lettuce is very difficult. People's demand for lettuce is growing with the development of the society, so the breeding of a new variety becomes more and more important. An optimized lettuce hybridization method is constructed in theinvention to obtain a high lettuce hybridization rate and lay a foundation for subsequent lettuce hybridization.

Description

technical field [0001] In this paper, a comprehensive method of lettuce hybridization was obtained by studying the structure of cauliflower, optimizing the ratio of alcohol concentration and lettuce detasseling, which laid the foundation for improving the hybridization rate of lettuce. Background technique [0002] Lettuce belongs to the genus Lettuce of the Compositae family. It is rich in vitamin C, vitamin A, Ca, P, Fe and other nutrients, and has high nutritional value. Worldwide lettuce consumption continues to increase and there is a growing demand for new varieties of lettuce. [0003] The main manifestations of heterosis in lettuce are: increased yield, improved quality, and enhanced resistance to unfavorable environments. Another manifestation of heterosis is uniform maturity, which facilitates uniform harvesting. [0004] Lettuce flowers are tongue-shaped flowers with small flowers, and the stigma is wrapped in anthers. One flower is composed of more than 20 tong...

Claims

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Application Information

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IPC IPC(8): A01H1/02
CPCA01H1/02
Inventor 刘凯歌张丽丽宋云鹏龚繁荣
Owner SHANGHAI ACAD OF AGRI SCI
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