Publication Date

1989

Description

Distant hybridization can be used to combine the characteri­stics of different species and genus to produce a new variety. By crossing the wild species Melissutus ruthenicus C.W. Chang (2n = 2x = 16) which exhibits cold-, drought- and salt-alkali resistance with the local high-yielding cultivar Medicago saliva Zhaodong (2 n = 4 x = 32), it was hoped to synthesize the fine characteristics of two parents, to obtain a new intermediate variety of alfalfa. This paper reports on the advance of the hyb­ridization, the results of cytological studies and the tendency of variations of filial generations as a guide to the breeding.

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Research on Distant Hybridization Between Melissutus ruthenicus c.w Chang and Medicago sativa Zhaodong

Distant hybridization can be used to combine the characteri­stics of different species and genus to produce a new variety. By crossing the wild species Melissutus ruthenicus C.W. Chang (2n = 2x = 16) which exhibits cold-, drought- and salt-alkali resistance with the local high-yielding cultivar Medicago saliva Zhaodong (2 n = 4 x = 32), it was hoped to synthesize the fine characteristics of two parents, to obtain a new intermediate variety of alfalfa. This paper reports on the advance of the hyb­ridization, the results of cytological studies and the tendency of variations of filial generations as a guide to the breeding.