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Method for overcoming water dropwort hybridization flowering asynchronism by artificial extraction of pollen of water dropwort

A technology that does not meet the flowering period and extracts water, which is applied in the fields of botanical equipment and methods, applications, and plant genetic improvement, which can solve problems such as sterility during flowering of cress, and achieve the effect of solving sterility during flowering.

Inactive Publication Date: 2017-03-01
NANJING AGRICULTURAL UNIVERSITY
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Problems solved by technology

[0011] 2. Invented by artificially extracting watercress pollen to overcome the technical methods and parameter control involved in the flowering period of watercress hybridization, so as to solve the problem of watercress flowering infertility

Method used

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  • Method for overcoming water dropwort hybridization flowering asynchronism by artificial extraction of pollen of water dropwort
  • Method for overcoming water dropwort hybridization flowering asynchronism by artificial extraction of pollen of water dropwort
  • Method for overcoming water dropwort hybridization flowering asynchronism by artificial extraction of pollen of water dropwort

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Embodiment Construction

[0012] 1. The time for picking cress flowers. Picking of cress flowers should be carried out in the morning. When picking, about 50-75% of the cress inflorescences are open, and the filaments can be clearly exposed, and it is advisable for the male buds to change from white to yellow. Cut off the whole cress inflorescence when picking ( figure 1 ) in a clean, cool container. When picking cress flowers, care should be taken to avoid light to prevent cress pollen from scattering.

[0013] 2. Cultivation of cress flower. Picked cress flowers, put the flowers upwards and put them in the incubator. The incubator uses fluorescent lamps as the light source, and the optical density is 200-500 μmol·(m -2 s) -1 , the temperature is 25-28°C, and the humidity is 65%-75% to prevent the cress flowers from wilting. After a day of cultivation, the male buds will shed pollen.

[0014] 3. Rough extraction of cress pollen. Place the cress flower in a stainless steel plate to promote the ...

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Abstract

The invention relates to a method for overcoming water dropwort hybridization flowering asynchronism by artificial extraction of pollen of water dropwort. The invention relates to a method of artificial utilization for extracting the pollen of water dropwort to overcome the problem of water dropwort hybridization flowering asynchronism. The method comprises the following steps: water dropwort pollen extraction, drying, detection, preservation, proportioning of pollen and other nutrient elements. The method can better solve the problem of severe flowering asynchronism during a water dropwort hybridization process, has important meaning for water dropwort hybridization and breeding in our country, and has important meaning for promoting genetics and breeding works of water dropwort.

Description

technical field [0001] The invention relates to a method for artificially extracting watercress pollen. The method is designed according to the serious problem of infertility in the flowering stage in the process of watercress cross breeding and the preservation characteristics of watercress pollen. The invention includes: extracting, drying, detecting, preserving and proportioning technology of cress pollen and other nutrient elements. This technology better solves the problem of not meeting the flowering period in watercress hybrid breeding, and greatly improves the efficiency of watercress hybridization. This technology is of great significance to the promotion of watercress breeding and genetic research in my country. Background technique [0002] Hybrid breeding has always been an important method of genetic breeding research, and it is the best and safest way to obtain new traits and new varieties. The flowering period has never met, which has always been a difficult...

Claims

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Application Information

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IPC IPC(8): A01H1/02
Inventor 熊爱生谭国飞王枫徐志胜
Owner NANJING AGRICULTURAL UNIVERSITY
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