Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Hybridization breeding method of high-phosphorus-efficiency maize

A hybrid breeding and corn technology, applied in the directions of botanical equipment and methods, applications, and plant genetic improvement, can solve the problems of inability to water corn, reduced drought tolerance of corn, and rising phosphate fertilizer prices, and achieve high yield and harsh environment resistance. , The use efficiency is improved, and the absorption effect is high.

Active Publication Date: 2015-11-11
河北东粮农业科技股份有限公司
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, due to weather conditions such as drought and the inability to irrigate the corn in time, the yield of corn has been greatly reduced
At the same time, due to the bullish price of phosphate fertilizer in recent years, many farmers apply less or no phosphate fertilizer in corn planting, which also reduces the drought tolerance and yield of corn.

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 Construction

[0030] The present invention will be described in further detail below, so that those skilled in the art can implement it with reference to the description.

[0031] It should be understood that terms such as "having", "comprising" and "including" as used herein do not entail the presence or addition of one or more other elements or combinations thereof.

[0032] The invention provides a method for hybrid breeding of phosphorus-efficient corn, comprising:

[0033] Step 1, hybridizing the male parent of corn and the first female parent of corn to obtain the F1 generation seed of the hybrid combination; and,

[0034] Step 2. Under the screening planting conditions, use the F1 generation seeds in step 1 to self-cross to form a bicyclic population, select a specific strain with screening traits from the population, and continuously self-cross 8 generations of the specific strain, Breeding inbred lines as the second female parent of maize;

[0035] in,

[0036] The screening pla...

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 hybridization breeding method of high-phosphorus-efficiency maize. The hybridization breeding method includes the following steps: 1) hybridizing a male parent and a first female parent of maize to obtain hybridized F1-generation seeds; 2) under a screen planting condition, selfing the F1-generation seeds to form a second cycle line population, selecting a specific plant which has screening characters, and continuously selfing the specific plant for 8 generations, and culturing the specific plant to form a selfing line as a second female parent, wherein the screen planting condition comprises three treatment steps to the maize plant: a) sowing the seeds under a low phosphorus condition, b) performing drought treatment from a seven-leaf period to an emulsion period, and c) drought recovery: irrigating a maize planting zone in a milk-ripe period with water containing K20, and then normally irrigating the maize with water; and 3) hybridizing the second female parent with the male parent of the maize to obtain new F1-generation seeds, which are high-phosphorus-efficiency maize seeds. The selfing seeds and the hybridized seeds are high in phosphorus utilization rate, are high in yield and are drought-resistant.

Description

technical field [0001] The invention relates to a hybrid breeding method of phosphorus high-efficiency corn. Background technique [0002] Maize has a large planting area in China and is widely distributed. It is one of the main grains for people in northern and southwestern mountainous areas and other dry valley areas of China. The bumper harvest of corn is a major issue related to food security and social stability. In recent years, due to weather conditions such as drought and the inability to irrigate the corn in time, the yield of corn has been greatly reduced. At the same time, due to the bullish price of phosphate fertilizer in recent years, many farmers apply less or no phosphate fertilizer in corn planting, which also reduces the drought tolerance and yield of corn. Therefore, cultivating high-yielding phosphorus-efficient and drought-tolerant maize varieties is one of the important ways to solve my country's food security, resource and environmental problems in t...

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
Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H1/04
Inventor 阮积恩
Owner 河北东粮农业科技股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products