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Breeding method of bald white wheat

A white-grain and wheat technology, applied in the breeding field of bald white-grain wheat, can solve the problem of few varieties, and achieve the effect of well-developed root system, high ear height, strong ability of leaf rust and powdery mildew

Inactive Publication Date: 2014-02-05
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are very few bald white wheat varieties that can be used in production, which cannot meet the needs of production and the masses. It is of great significance and broad application prospects to carry out the breeding and application of new bald white wheat varieties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1 Breeding method of bald white-grained wheat variety Mianyang 92--330

[0020] A kind of breeding method of bald white wheat, its concrete method is as follows:

[0021] 1) The self-fertile line Mianyang 01821 was selected as the female parent, the self-fertile line Mianyang 85-40 was selected as the male parent, and a hybrid combination was prepared: Mianyang 01821 / Mianyang 85-40. pollinated 5 ears, harvested F 0 86 generation seeds. Among them, Mianyang 01821 has a plant height of 70-75cm, 18-20 fruity spikelets, about 45 fruity grains, 45-50g thousand-grain weight, and a height of more than 57g. Long awn white shell, rectangular panicle, well-developed root system, short and healthy plant, with short stalks, strong dwarfing ability, early maturity, strong lodging and disease resistance, large white grains, and excellent comprehensive traits. It is a wheat breeding The high-quality dwarf wheat parent materials available in China have the disadvantages o...

Embodiment 2

[0027] Example 2 Breeding method of bald white-grained wheat variety Mianyang No. 31 (former code name Mianyang 96-329)

[0028] A kind of breeding method of bald white wheat, its concrete method is as follows:

[0029]In this experiment, the hybrid combination is: Mianyang 81-5 / Shengsheng 81-24 / / Chuanzhi 89-076, and the treatment method for its offspring is the same as in Example 1. Mianyang 81-5, later named Mianyang No. 20; Chengsheng 81-24, later named Chuanyu No. 9; Mianyang 81-5 / Chengsheng 81-24 became a line and became a variety, and the strain code of this combination is Mianyang 90-310. In this experiment, it can be regarded as a compound hybridization between varieties, and it can also be regarded as an aggregation hybridization method of cultivating and selecting intermediate materials and then hybridizing. Mianyang 81-5 is a systematic breeding line of Mianyang 11, Mianyang 11 is a red seed variety, while Mianyang 81-5 is a white seed variety, with a plant height...

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Abstract

The invention relates to the technical field of wheat breeding, and particularly relates to a breeding method of bald white wheat. The breeding method comprises the following steps: 1, carrying out single cross, back cross, composite cross or multi-parent convergent cross on wheat, which has a bald or apex-awned character and a white character and serves as a female parent, to obtain F0 generation seeds; 2, planting the F0 generation seeds, and harvesting F1 generation seeds after ripening; 3, planting the F1 generation seeds, and selecting awn-free F2 generation seeds; 4, carrying out single-plant selection on the F2 generation seeds, and selecting awn-free and apex-awned F3 generation seeds; 5, carrying out indoor seed testing on the F3 generation seeds, and selecting white F4 generation seeds; and 6, planting the F4 generation seeds for multiple times until the strain is free of awns and has the stable white character to form a variety for production. The bald white wheat provided by the invention is developed in root system, strong in tillering capacity, high in formed wheat ears, large in grain, high in thousand seed weight, full in grain, easy to thresh, strong in lodging-resistance capability, stripe rust resistance, leaf rust resistance and powdery mildew resistance, and good in ripening and yellowing, and has rectangular wheat ears and white bran.

Description

technical field [0001] The invention belongs to the technical field of wheat breeding, and in particular relates to a breeding method for bald white-grained wheat. Background technique [0002] Wheat is an important food crop. Governments at home and abroad attach great importance to the breeding and production of new wheat varieties, which are related to people's lives and national food security. The specificity of wheat varieties determines the regionality of its promotion and use. Due to my country's complex geography and great differences in ecological conditions, wheat is susceptible to various diseases such as powdery mildew, gibberella, and stripe rust. In order to ensure high yields, it is extremely important to select excellent varieties with strong disease resistance. [0003] Wheat is a major food crop widely planted in the world. The purpose of people planting wheat is not only to meet food rations, but also to improve its quality. Due to the improvement of li...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04
Inventor 李邦发
Owner SOUTHWEAT UNIV OF SCI & TECH
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