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Pakistan Journal of Biological Sciences
Year: 2000  |  Volume: 3  |  Issue: 11  |  Page No.: 1884 - 1887

Changes in the Biological Effects of Gamma Irradiation with Gibberellic Acid in M2 Generation of Chickpea (Cicer arietinum L.)

Muhammad R. Khan, Afsari S. Qureshi, Syed A. Hussain and Muhammad Ibrahim    

Abstract: Seeds of 250 plants from M1 generation of three chickpea genotypes viz, Noor 91 (white), Punjab 91 (brown) and C 141 (black) at 40, 50 and 60 Kr separately and with gibberellic acid (GA3) along with control were grown to raise the M2 generation. The effects on 100-seed weight, grain yield, biological yield, harvest index, days to flowering and maturity in M2 generation were highly significant (p<0.01) within genotypes, treatments and also for their interaction. Statistically significant increase in 100-seed weight was observed with the combine treatment at 40 Kr while it was decreased at 60 Kr as compared with gamma irradiation. Grain yield was significantly increased with gamma irradiation however, stimulation was recorded with the application of GA3. Biological yield was decreased while, harvest index was increased with both types of treatments. However, more harvest index was recorded with combine treatment. Days to flowering were increased at 40 and 60 Kr with gamma irradiation while, decreased at 40 and 50 Kr with the combine treatment. Days to maturity were decreased with both the treatments.

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