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Method for obtaining variety of Oplopanax elatus with heterosis

A technology for heterosis and sea cucumber is applied in the field of seed production to obtain the heterosis of sea cucumber, and achieves the effects of high survival rate, good industrial application prospect and fast growth rate.

Inactive Publication Date: 2008-10-08
OCEAN UNIV OF CHINA
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Problems solved by technology

There are no reports about the cross breeding of Apostichopus japonicus at home and abroad

Method used

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Embodiment Construction

[0007] The present invention will be further described in detail below in conjunction with the embodiments.

[0008] 1) Seed ginseng to promote maturity: From February 10th to February 25th, 2007, wild sea cucumbers were collected from the sea area of ​​Oita County, Kyushu, Japan, and transported to the sea cucumber nursery plant in Weihai City, Shandong Province on March 2nd. Indoor storage in 16℃ seawater; Chinese sea cucumber was taken from Rongcheng Lidao sea area in November 2006, and the indoor temperature is warmed to promote ripening.

[0009] 2) Induction of labor: From April 20 to May 15, the selected individuals of sea cucumbers were artificially induced to labor by using the methods of shade drying, warming, and ultraviolet irradiation of seawater. The specific operation is: choose to collect eggs in the evening, first dry the seed ginseng in the shade for about 1 hour, then stimulate it with running water for 10 minutes, and then put the seed ginseng into the sea wate...

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Abstract

A seed production method for obtaining trepang heterosis is characterized in that Chinese seed trepangs and Japanese seed trepangs are ripened synchronously firstly; then, artificial egg taking is processed under the conditions that the environment is dried in the shade and the temperature is heated and seawater is irradiated by ultraviolet radiation; the sperm and the egg of Chinese trepangs and Japanese trepangs are hybridized; finally, the hatch and the seed rearing of hybridized trepangs are processed by a normal method. The invention has the advantages as follows: Chinese trepangs and Japanese trepangs are ripened synchronously by temperature adjustment; two procreation-isolated and different geographical populations are hybridized to cultivate a hybridized trepang seedling with fast growth speed, strong stress resistance and high survival rate. The production character of the hybridized trepang seedling is obviously better than Chinese local selfing control population, which has very good industrialization application prospect.

Description

Technical field [0001] The invention relates to a sea cucumber hybridization method, in particular to a seed production method for obtaining sea cucumber heterosis by using different geographic populations of sea cucumbers to cross. Background technique [0002] Sea cucumber is the crown of the "eight treasures of seafood", among which sea cucumber is the most valuable species. It is naturally distributed in East Asia of China, Japan and South Korea. It is an important marine economic animal in my country. In the past 10 years, with the depletion of global sea cucumber natural resources and the continuous growth of domestic sea cucumber consumption, sea cucumber farming in my country has shown a rapid development trend. According to statistics, the average annual growth rate of production from 2003 to 2006 was 12.2%, which was higher than the national average annual growth rate of 5.6% in aquatic production during the same period. Among them, the total production of sea cucumbers...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 李琪胡美燕孔令峰于瑞海宫庆礼董双林
Owner OCEAN UNIV OF CHINA
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