Experimentally induced mutations in soyabean and their breeding value. II. Frequency of morphological mutations and their relation to chlorophyll mutations

Sichkar' , V.I.

Genetika, USSR 16(7): 1253-1259

1980


Accession: 000885292

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Abstract
Seeds of Lanka, Kirovograd 4, Peremoga [Victory], VNIIMK9186 and the hybrid line 89-10 were treated with N-nitroso-N-methylurea (NMU), N-nitroso-N-ethylurea (NEU), ethyleneimine (EI), ethylene oxide (EO), N-nitroso-N-dimethylurea (NDMU), dimethyl sulphate (DMS) and gamma rays. NEU, NMU and gamma rays were the most effective in inducing mutations, judging by the frequency of families with morphological and chlorophyll mutations in the M2. The ranking of the mutagens in terms of efficiency was the same for morphological mutations as for chlorophyll mutations with the exception of gamma rays, which were three times as effective in inducing morphological mutations as chlorophyll mutations. NMU, NEU and EI induced roughly equal proportions of both types of mutation, while DMS, EO and NDMU induced four times more morphological than chlorophyll mutations. Peremoga and Kirovograd 4 were the most mutable and 89-10 was the least.