Barley recovery system breeding method

Abstract

The present invention relates to a restoring line breeding method of the barley combination hybridized by robust and high-quality ones; the method belongs to the technical field of agricultural crop breeding. The method comprises that the two-rowed barley restoring line is taken as the maternal plant and multi-rowed barley as the paternal plant; individual plants with scattered fringe and good flowering habit in the F2 generation to inbreed for 3 to 5 generations and get the restoring line 238; the restoring line 238 is taken as the maternal plant to hybridize with the multi-rowed barley 35 as the paternal plant; the offspring is backcrossed with the 35 paternal plant for 3 to 5 generations and get the flowering restoring line 03-358 with excellent agriculture features. The fringes of the restoring line 03-358 are scattered which is beneficial to long-term loose powder; the blossom is 2 to 3 days which is beneficial to adjusting the parent plants blossoms to meet; the anther is hung outside in blossom which is beneficial to hybridization. The parent 270A is taken as the maternal plant and the restoring line 03-358 is taken as the paternal plant; the combination is hybrid one of strong advantages; the hybrid F1 generation is two-rowed one; the largest fringe has 33 grains and the dry grain weight is about 45 grams; the stem is hard which is lodging resistant and the advantage of the hybrid is strong.

Description

1. Technical field [0001] The invention relates to a method for selecting a restorer line of a combination of strong and superior hybrid barley, which belongs to the technical field of crop breeding and is specially used for the production of mid-high yield hybrid barley seeds utilizing barley heterosis. 2. Background technology [0002] At present, the technical difficulties in the utilization of barley heterosis have not been well solved at home and abroad, such as the selection of sterile lines, maintainer lines and restorer lines, the selection of strong and superior hybrid combinations, and the high-yield technology of hybrid seed production. We discovered the barley male sterile material in 1983, bred the barley male sterile line "Qin 270A" with stable sterility traits in 1993, and realized the matching of three lines, and screened out the strong hybrid of "Yan 94-258" from 1997 to 1999 The barley combination participated in the barley regional test in Jiangsu Province...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problems of low heterosis in the utilization of barley heterosis and low yield of hybrid seed production, etc., and proposes a restorer line breeding method, the bred restorer line has high yield of the first generation of hybrids, and the restorer line has good flowering habit , which is conducive to increasing the yield of seed production

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