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Asian Journal of Plant Sciences

Year: 2003  |  Volume: 2  |  Issue: 12  |  Page No.: 894 - 896

Study of Days Taken to Earing Initiation and Earing Completion in M1 Generation of Different Wheat Genotypes Irradiated with Various Doses of Gamma Radiation

Rahm Din, Muhammad Qasim, Khalil Ahmad and Shah Jehan


In all wheat genotypes days to earing initiation were significantly increased due to 25 Krad, 35 Krad and 45 Krad, doses except 15 Krad dose which slightly enhanced the earing but as the doses increased to higher level, a delay in days to earing was observed. The value recorded for various doses of 15, 25, 35 and 45 Krad were ranging from 89.20 to 101.25 days showing a maximum increase of 12.45% in time taken to earing initiation due to 45 Krad dose in comparison to control. Similarly significant delay in earing completion was recorded in all the genotypes with various doses except 15 Krad with which a slight decrease was obtained in time taken to earing completion.

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