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Studies on the ve type male sterility of wheat



Studies on the ve type male sterility of wheat



Acta Genetica Sinica 7(1): 26-35



The new VE-type male-sterile line of wheat was selected from the hybrid progenies of a cross between an octoploid of Triticum vulgare-Agropyron elongatum intergeneric cross and common wheat. This male-sterility is controlled by nuclear genes. Generally, in an isolated field, there are about 3/4 of male-sterile plants and 1/4 of heterozygous fertile plants segregated from the progenies of the male-sterile line. Hence, they possess both functions of the male-sterile line and its maintainers, so that the male-sterile plants can be produced in large amounts by natural crossing among the sister plants of the same line. Before producing hybrid wheat, the male-sterile plants must be selfed in an isolated field to get a progeny with all of the plants being male-sterile. This progeny is used as the maternal parent for producing hybrid seeds. Almost all of the common wheat varieties possess good restoring ability for the VE-type male-sterile line. The yields of some hybrid wheat combinations are much better than the conventional variety used as check in yield test.

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Accession: 006522944

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