Brassica napus annual multi-generation generation adding method

A technology for Brassica napus and rape, which is applied in the fields of botanical equipment and methods, seed and rhizome treatment, horticulture, etc., can solve the problems of long breeding years and high resource consumption, shorten the breeding years, and reduce the consumption of manpower and material resources. , to avoid the effect of running around in different places

Active Publication Date: 2017-02-01
江西省农业科学院作物研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problems of long breeding period and high resource consumption in the existing rapeseed breeding technology, thereby providing a method for multi-round addition of rapeseed every year, so as to realize 3-4 mature breeding a year and effectively accelerate Breeding process, shorten the breeding period, avoid travel to other places, save manpower, material and financial costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The method for adding rapeseed in three rounds a year includes the following steps:

[0029] Seed pretreatment, place the seeds (Zhongshuang 11, Institute of Oil Crops, Chinese Academy of Agricultural Sciences) in a petri dish covered with double-layer filter paper, add water to ensure the moisture required for seed growth, cover the lid, and place at 30°C cultured in a constant temperature incubator. On the third day, after the seeds broke their shells and exposed buds, they were placed in a dark incubator at 2°C for artificial vernalization for 25 days to obtain the required rapeseed seedlings. In order to ensure the vitality of the seedlings, artificial spring During the chemical treatment, keep the appropriate amount of water in the Petri dish.

[0030] For transplanting and seedling management, after making a hole in the bottom of a plastic water cup with a volume of 220ml, fill it with nutrient soil, put it in a plastic box, and add an appropriate amount of water ...

Embodiment 2

[0039] The annual four-round replacement method of rapeseed comprises the following steps:

[0040] Seed pretreatment, place the seeds (Huashuang 128, Huazhong Agricultural University) in a petri dish covered with double-layer filter paper, add water to ensure the moisture required for seed growth, cover the lid, and place in a constant temperature incubator at 30 °C Cultivate, after the seeds break their shells and buds on the third day, put them in a dark incubator at 2°C for artificial vernalization for 15 days to obtain the required rapeseed seedlings. In order to ensure the vitality of the seedlings, keep culturing during the artificial vernalization treatment There is an appropriate amount of water in the dish.

[0041] For transplanting and seedling management, after making a hole in the bottom of a 220ml plastic water cup, fill it with nutrient soil, put it in a large plastic box, and add an appropriate amount of water to the plastic box to ensure that the nutrient soi...

Embodiment 3

[0050] The substituting method in this embodiment is the same as that in Embodiment 1, the only difference being that during the artificial vernalization treatment, the light intensity is 5000 LUX, the rapeseed seedlings begin to differentiate into flower buds, and the temperature is controlled at 29°C.

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Abstract

The invention provides a Brassica napus annual multi-generation generation adding method. Four stages including seed pretreatment, transplanting and seedling management, flowering phase management and pod development period management are effectively controlled, and one-year three-cropping or four-cropping (ie, annual three-generation or four-generation generation adding) of the Brassica napus is realized, the seed breeding process is effectively accelerated, and the seed breeding year limit is shortened. The controllable greenhouse cultivation technology is adopted, so that the running around at different places are avoided, the time is saved, and manpower and material resources are saved. The Brassica napus annual multi-generation generation adding method is applied to backcross or cross breeding, and seed breeding of novel high-quality and high-yield disease-resistant varieties of Brassica napus can be accelerated.

Description

technical field [0001] The invention relates to the technical field of plant breeding methods, in particular to an annual multi-round generation technology for Brassica napus. Background technique [0002] Brassica napus, referred to as rapeseed in production, is the species with the highest grain yield among the three types of oilseed rape (Chinese cabbage rape, mustard rape, and Brassica napus), and is the oil crop with the largest area and the highest total output in my country. It is an important guarantee for the safety of edible oil in our country. [0003] Breeding of new varieties of rapeseed is the basis for increasing the yield of rapeseed. In rapeseed breeding, supplementary breeding is an essential link in the process of cultivating improved varieties to shorten the breeding period and speed up the breeding process. At present, the method of intergenerational breeding in different places is adopted, which consumes a lot of manpower, material resources and finan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01C1/00
CPCA01C1/00
Inventor 陈伦林熊洁李书宇丁戈宋来强邹晓芬
Owner 江西省农业科学院作物研究所
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