Special breeding method for two-rowed and multi-rowed hybridization offspring of barley

Abstract

The invention discloses a special breeding method for a two-rowed and multi-rowed hybridization offspring of barley, and the method comprises the following steps: 1) after the two-rowed and multi-rowed hybridization of the barley, a multi-rowed single plant is selected whether F2 generation single plant is good or bad, and after 3 to 4 years of additive generations, a stable strain is selected; and 2) the good stable strain and a good multi-rowed variety are used for second round of improvement, and then third round of improvement is repeated until the two-rowed and multi-rowed hybridization offspring is selected. The method belongs to the technical field of plant breeding, overcomes the conventional technical prejudice, adopts an inverse conventional method, selects a multi-rowed type, and eliminates a two-rowed type. Moreover, the final selected multi-rowed type is also a type which is eliminated by ordinary people. The method uses the existing eliminated type and the better multi-rowed variety or resource for hybridization and improvement to select a historical-breakthrough new beer barley variety (agricultural reclamation beer barley 15), and the method is original in both domestic and foreign, and is unique.

Description

technical field [0001] The invention belongs to the technical field of plant breeding, and specifically refers to a special breeding method for barley two-row and multi-row hybrid offspring. Background technique [0002] Barley is one of the most widely planted crops in the world, and it is also the fourth largest cereal crop that combines brewing, feed and food. In recent decades, the world's barley sown area and total output have grown the fastest among cereal crops Yes, with an average growth rate of over 80%. Although my country's barley variety improvement work started late, the germplasm resources are lacking, and the equipment and breeding methods are backward, but through the introduction of a large number of foreign high-yield and high-quality planting resources and the unremitting efforts of breeders, the level of barley breeding has gradually approached that of foreign countries in the 1990s. Level. [0003] In the early 1990s, almost 100% of the genetic basis of...

AI Technical Summary

Problems solved by technology

[0003] In the early 1990s, almost 100% of the genetic basis of the barley varieties and lines we bred contained North American blood, and it was difficult to make obvious breakthroughs in yield and quality

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