BEIJING, CHINA

Inst. Crop Breeding and Cultivation

Selection of somaclonal variants resistant to toxin of Fusarium moniliforme from a maize inbred susceptible to ear rot

--Hongsheng Zhou

Two month old callus cultures induced from a maize inbred Zhong017 susceptible to ear rot were used as experimental material to select disease resistant mutants. Pathotoxin of Fusarium moniliforme was put in MS2 medium from sublethal (0.01%) to completely lethal concentration (0.1%). After several months of selection, cultures 10 times more resistant than the original were obtained. The identification of resistance to ear rot of regenerate plants will be determined next year.


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