Breeding method of drought-resistant wheat
A technology for wheat and wheat seeds, applied in horticultural methods, botanical equipment and methods, plant genetic improvement, etc., can solve the problems of high cost and low benefit, and achieve simple and clear screening indicators, good grain weight stability, good ultra-high performance. The effect of contrasting properties
Pending Publication Date: 2020-07-24
DRY LAND FARMING INST OF HEBEI ACAD OF AGRI & FORESTRY SCI
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Problems solved by technology
[0002] China's wheat planting is developing in the direction of scale, but the current high cost and low benefit have become the most prominent obstacles to the sustainable development of my country's wheat production
Method used
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Experimental program
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Embodiment
[0021] A method for breeding drought-resistant wheat. The parent material of drought-resistant wheat is selected for hybridization to obtain F0 generation wheat. The F0 generation wheat is self-crossed for three consecutive generations and the excellent individual plant is selected to obtain the F3 generation wheat excellent individual plant. The F3 generation wheat excellent individual plant After threshing, the F4 generation wheat seeds are obtained, and the F4 generation wheat seeds are used to carry out the following breeding stages:
[0022] S1: planting
[0023] The F4 generation wheat seeds are sowed in the mode of on-demand sowing, the plant-to-plant spacing is 3.3cm, and the row spacing is 25cm. A reference material is planted at every interval of 5-10 planting points, and the reference material is a drought-resistant wheat variety material; natural drought in the field Under environmental conditions, the same batch of wheat materials was divided into a water treatmen...
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The invention relates to the technical field of wheat breeding, and discloses a breeding method of drought-resistant wheat. The breeding method comprises the steps of selecting drought-resistant wheatparent materials, performing hybridization to obtain F0-generation wheat, performing continuous three-generation selfing on the F0-generation wheat, performing excellent individual-plant selection toobtain excellent F3-generation wheat single plants, performing threshing on the excellent F3-generation wheat single plants to obtain F4-generation wheat seeds, and performing breeding through the F4-generation wheat seeds. According to the breeding method of drought-resistant wheat disclosed by the invention, the concept of a grain weight drought-resistant index is introduced from a grain weightcomprehensive screening and judging angle under two processing environments, and can be directly applied to breeding of wheat varieties; the screening index is succinct and clear, breeding of wheat drought-resistant varieties is performed through assistance of single key factors, a usable single-factor index is provided for analyzing the stability that wheat varieties adapt to drought environment, a reference index is provided for correctly evaluating the drought resistant characteristics and the drought resistant category of the wheat varieties, and screened wheat variety materials have favorable grain weight stability and ultra contrast characteristics under the two processing environments.
Description
technical field [0001] The invention relates to the technical field of wheat breeding, in particular to a drought-resistant wheat breeding method. Background technique [0002] China's wheat planting is developing in the direction of scale, but the current high cost and low benefit have become the most prominent obstacles to the sustainable development of my country's wheat production. China is a country with a large water shortage. With the increasing population, economic development and global climate change, the drought and water shortage are becoming more and more serious. Water resources are very precious, and the groundwater funnel formed by the overexploitation of groundwater seriously threatens our living environment. Therefore, water saving imminent. Among the various ways of water resource utilization, agricultural irrigation accounts for about 62% of the total, and northern wheat irrigation accounts for about 50% of agricultural water use, so water conservation f...
Claims
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IPC IPC(8): A01H1/04A01G22/20A01G7/06
CPCA01H1/04A01G22/20A01G7/06
Inventor 乔文臣赵明辉李丁李强孟祥海孙书娈
Owner DRY LAND FARMING INST OF HEBEI ACAD OF AGRI & FORESTRY SCI