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Pakistan Journal of Biological Sciences

Year: 2005  |  Volume: 8  |  Issue: 12  |  Page No.: 1707 - 1711

The Efficiency of Chromosome Doubling in Haploids Derived from Wheat X Maize Crossing

Javed Ahmad and Muhammad Aslam Chowdhry


A significant effect of the plant development stage on fertility was observed at the time of colchicine treatment. Plants at the 5-7 tillers stage showed improved plant fertility and reduced plant mortality than those treated at the 2-3 tillers stage. The addition of colchicine to media resulted not only in higher plant fertility than did conventional methods, but furthermore led to a huge increase in the number of doubled-haploid seeds.

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