Unlock instant, AI-driven research and patent intelligence for your innovation.

Wheat multi-mutation breeding method

A technology for mutation breeding and wheat seeds, applied in the directions of botanical equipment and methods, applications, and plant genetic improvement, can solve the problems of low mutation rate of wheat breeding, difficult to grow into new individuals, weak competitiveness, etc., and achieve shortened breeding. Years, fast and efficient breeding, the effect of increasing the probability

Pending Publication Date: 2019-05-31
INST OF PLANT NUTITUION & RESOURCE ENVIRONMENT HENAN ACADEMY OF AGRI SCI
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to: aim at the problem that the above-mentioned mutant cells have weak competitive ability and are not easy to grow into new individuals, resulting in a low mutation rate of wheat breeding. The present invention provides a method for multiple mutation breeding of wheat

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for multiple mutation breeding of wheat, comprising the steps of:

[0024] Step 1: Under the condition of selecting the disease-susceptibility, prepare alternative wheat seeds, make the wheat grow under the disease-sensitivity condition, be the F1 generation seed with the seed of natural wild wheat, pass through the X-ray dose of 30,000 roentgens to the F1 generation seed Irradiate for 3 seconds;

[0025] Step 2: Plant the F1 generation seeds after X-ray irradiation for at least two generations, use the obtained wheat seeds as the male parent, select a high-yielding and stable-yielding wheat variety as the female parent, and carry out hybrid planting to harvest high-yield and neat wheat ears. For F2 generation seeds, the female parent of wheat removes the stamens and immature anthers of the female parent of wheat at 10 o'clock every morning during its flowering period, and wraps the flower of the female parent of wheat with a paper bag. The two ends of the pape...

Embodiment 2

[0033] A method for multiple mutation breeding of wheat, comprising the steps of:

[0034] Step 1: Under the condition of selecting the disease-susceptibility, prepare alternative wheat seeds, make the wheat grow under the disease-sensitivity condition, be the F1 generation seed with the seed of natural wild wheat, pass through the X-ray dose of 30,000 roentgens to the F1 generation seed Irradiate for 5 seconds;

[0035] Step 2: Plant the F1 generation seeds after X-ray irradiation for at least two generations, use the obtained wheat seeds as the male parent, select a high-yielding and stable-yielding wheat variety as the female parent, and carry out hybrid planting to harvest high-yield and neat wheat ears. For F2 generation seeds, the female parent of wheat removes the stamens and immature anthers of the female parent of wheat during its flowering period every day at 11 o'clock in the morning, and wraps the flower of the female parent of wheat with a paper bag. The two ends ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a wheat multi-mutation breeding method. The method includes the following steps of firstly, preparing alternative wheat seeds under the selected susceptible conditions so thatthe wheat can grow under the susceptible conditions, and irradiating the natural wild wheat seeds as the F1-generation seeds for 3-5 seconds with the X-ray irradiation amount of 30 thousands of roentgens; secondly, conducting at least two generations of plantation on the F1-generation seeds irradiated by X-rays, and conducting hybrid plantation with the obtained wheat seeds as the male parent andhigh-yield and the stable-yield wheat species as the female parent to obtain high-yield and neat-ear F2-generation seeds; thirdly, irradiating F2-generation seeds for 15-25 seconds through ultravioletrays generated by an ultraviolet lamp with the power of 60-80 W in the closed environment with helium as the working medium; fourthly, removing spikelets with poor developing lower portions from earsthrough forceps on the main stem ears and large tiller ears with anther developing to be almost mature.

Description

technical field [0001] The invention relates to the field of wheat breeding, in particular to a method for multiple mutation breeding of wheat. Background technique [0002] Wheat is one of the main food crops in the world, with an annual global output of more than 7 billion tons, which provides the calorie intake of 20% of the world's population, and the average annual consumption of wheat per person is about 67kg. The level of glutenin content in wheat is very important to improve the baking quality of wheat bread. At present, EMS mutagenesis of wheat is mostly used for seed treatment. Since the seed embryo is a multicellular tissue, only a few cells undergo mutation after treatment, thus forming a chimera of mutant cells and normal cells. The mutant cells have weak competitive ability and are not easy to grow into new individuals. , so the mutation rate is low. Contents of the invention [0003] The object of the present invention is to: aim at the problem that the mu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A01H1/02A01H1/04A01H1/06
Inventor 宋晓黄绍敏许端阳张珂珂岳克王沙沙张水清郭斗斗
Owner INST OF PLANT NUTITUION & RESOURCE ENVIRONMENT HENAN ACADEMY OF AGRI SCI