Method for breeding high-yield, ultrahigh-yield, and multi-resistant wheat

A super high-yield, wheat technology, applied in the field of breeding, to achieve the effect of scientifically advanced selection methods, clear technical routes, and improved yields

Inactive Publication Date: 2014-08-13
INST OF COTTON RES CHINESE ACAD OF AGRI SCI
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Problems solved by technology

[0004] Aiming at the current situation where the contradiction between supply and demand of wheat is becoming more and...

Method used

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Embodiment 1

[0046] 07 in 40 is a disease-resistant, high-yielding improved dwarf wheat population A as the female parent, crossed with 03-50618 as the male parent, and then used 03-50618 as the recurrent parent for three consecutive generations of backcrossing, and selected the dwarf wheat after backcrossing The fertile plants were selected by the improved improved pedigree method for continuous multi-generation self-crossing, and were bred in 2007 as a high-yielding, disease-resistant and stress-resistant new wheat material.

[0047] The 03-50618 is a hybrid F of (Zhoumai 11 / Zheng 98) 5 Generations, as a strain has stabilized. Zhoumai 11, also known as Zhoumai 11 and Yumai 51, was bred by the Agricultural Science Research Institute of Zhoukou District, Henan Province, and was approved by the State Administration of Mai 20000007. Zheng 98, also known as Zhengmai 98, was bred by Wheat Selection of Henan Academy of Agricultural Sciences, Yushenmai 2002008.

[0048] The improved dwarf wheat ...

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Abstract

The method provides a method for breeding high-yield, ultrahigh-yield, and multi-resistant wheat. The method comprises the following steps: taking a disease-resistant, high-yield, and modified dwarf-male-sterile wheat group A as the female parent and 03-50618 as the male parent to carry out hybridization, then taking 03-50618 as the recurrent parent to carry out continuous backcrosses for three generations, selecting the fertile line from the dwarf-male-sterile wheat after the backcrosses, and carrying out continuous multi-generation selfing breeding through an improved pedigree method until a new wheat species that is accord with the breeding standards is obtained. In order to overcome the technical difficulties existing in high-yield wheat species such as lodging, bad adaptability, and bad disease resistant property, parent screening and creation are carried out to continuously improve dwarf-male-sterile wheat group, excellent genes are hybridized and reconstituted, and the genetic basis is enriched. A novel method is provided for breeding high-yield, ultrahigh-yield, and multi-resistant wheat.

Description

technical field [0001] The invention relates to breeding technology, in particular to a method for breeding high-yield, super-high-yield, multi-resistance wheat. Background technique [0002] The Huanghuai winter wheat area is the main wheat producing area in my country. The wheat area in the Huanghuai wheat region alone accounts for more than 40% of the country's wheat area, and its output accounts for more than 45% of the country's total output. Wheat is the most important food crop in Henan Province. As the first major wheat province, the annual sowing area is more than 75 million mu, accounting for about 1 / 5 of the national wheat sowing area. Wheat variety. It requires well-developed root system, good drought tolerance, resistance to severe winter cold, good overwintering ability, and resistance to spring cold. Although this province is an area where stripe rust occurs occasionally, the climate is suitable when there is more spring rain, and when there are bacterial s...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04
Inventor 闫素红李伟杨兆生刘旭
Owner INST OF COTTON RES CHINESE ACAD OF AGRI SCI
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