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Research Article

Effect of Gamma Radiation on Growth and Yield of Barley under Different Nitrogen Levels

F. Subhan , M. Anwar , N. Ahmad , A. Gulzar , A. M. Siddiq , S. Rahman , I. Ahmad and A. Rauf
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An experiment was conducted at Cereal Crops Research Institute Pirsabak Nowshera during 2000-01 to study the effect of gamma radiation at the rate of 10, 20 and 30 Krads on growth and yield of barley fertilized with 30,60 and 90 kg ha-1 of nitrogen. Nitrogen was applied in split doses at sowing and tillering stages with 100 kg ha-1 of Single Super Phosphate (SSP) as a basal dose. Nitrogen significantly increased plant height, straw yield, 1000-grain weight and grain yield. The application of 90 kg N ha-1 produced 3875 kg of grain and 13667 kg ha-1 straw yield. Irradiation had positive effects on grain yield with maximum production at the rate of 10 krads of gamma rays. An increase in straw yield was also observed with increase in radiation doses, where maximum straw yield was recorded with 30 krads of radiation. Moreover, spike length and 1000-grain weight were also significantly increased with radiation. The interaction of both variables in most cases was significant with positive relation ships with the characters studied in the experiment.

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  How to cite this article:

F. Subhan , M. Anwar , N. Ahmad , A. Gulzar , A. M. Siddiq , S. Rahman , I. Ahmad and A. Rauf , 2004. Effect of Gamma Radiation on Growth and Yield of Barley under Different Nitrogen Levels. Pakistan Journal of Biological Sciences, 7: 981-983.

DOI: 10.3923/pjbs.2004.981.983



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