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A method for annual multi-round addition of Brassica napus

A technology of Brassica napus and rapeseed, which is applied in the fields of seed and rhizome treatment, leaf crop cultivation, agriculture, etc., can solve the problems of high resource consumption and long breeding period, so as to reduce the consumption of manpower and material resources, shorten the breeding period, The effect of shortening the reproductive period

Active Publication Date: 2019-10-29
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 of adding three rounds of oilseed rape a year includes the following steps:

[0029] For seed pretreatment, place the seeds (Zhong Shuang 11, Oil Crop Research Institute, Chinese Academy of Agricultural Sciences) in a petri dish covered with double-layer filter paper, add water to ensure the moisture needed for seed growth, cover the lid and place at 30°C Cultivate in a constant temperature incubator. On the third day, after the seeds are broken and exposed, they are placed in a dark incubator at 2°C for artificial vernalization for 25 days to obtain the required rape seedlings. In order to ensure the vitality of the seedlings, in artificial spring Keep proper amount of water in the petri dish during chemical treatment.

[0030] 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 and place it in a plastic box. Add an appropriate amount of water to the plastic box to ensu...

Embodiment 2

[0039] The method of adding four rounds of rape a year includes the following steps:

[0040] For seed pretreatment, place the seeds (Hua Shuang 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 and place in a constant temperature incubator at 30°C Cultivation, on the third day, after the seeds are broken and exposed, they are placed in a dark incubator at 2°C for artificial vernalization for 15 days to obtain the required rape seedlings. In order to ensure the vigor of the seedlings, maintain the culture during the artificial vernalization There is an appropriate amount of water in the dish.

[0041] 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 and place it in a large plastic box. Add an appropriate amount of water to the plastic box to ensure that the nutrient soil in the...

Embodiment 3

[0050] The method of adding generation in this embodiment is the same as that in embodiment 1, except that during artificial vernalization, the light intensity is 5000 LUX, the rape seedlings begin to differentiate into flower buds, and the temperature is controlled to 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 a technology for the annual multi-round addition of Brassica napus. Background technique [0002] Brassica napus, abbreviated as rapeseed in production, is the variety with the highest grain yield among the three oilseed rapes (cabbage-type rape, mustard-type rape, and cabbage-type rape), and is the largest oil crop in my country with the highest total yield. It is an important guarantee for the safety of edible oil in our country. [0003] The selection and breeding of new rape varieties is the basis for improving the yield of rape. In rape breeding, multi-generation breeding is an indispensable link in the breeding process of improved varieties to shorten the breeding period and accelerate the breeding process. At present, the method of multi-generation breeding is adopted in different places, which consumes a lot of manpower, material resources and financial resource...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/15A01C1/00
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