In a RCB design , effects of deficit irrigation on Canola yield and water use efficiency (WUE) were investigated. Also phonologic stages sensitive to drought stress were determined at Mashhad Agricultural Research Station. Treatments included: I1= without irrigation. I2= irrigation at stem elongation, flower bud development, flowering and pod development stages. I3= irrigation at flower bud development, flowering, and pod development stages. I4= irrigation at stem elongation, flowering and pod development stages. I5= irrigation at flower bud development and pod development stages. I6= irrigation at flowering and pod development stages. Maximum grain yield (2837 kg.ha-1) was obtained from I4 treatment (Duncan’ test , α=0.05). Lowest yield was obtained in I1 treatment equal to 1746 kg.ha-1 .The same treatment also had the lowest percent of seed oil. Because of above-normal precipitation in the second and third year, I1 treatment had the highest water use efficiency as 0.6 kg.m-3. According to our results, irrigating at stem elongation, flowering , and pod development is necessary for obtaining suitable yield and WUE.
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Rahimian, M. H. and Vaziri, J. (2009). Effects of Deficit Irrigation on Canola Yield and Water Use Efficiency. Iranian Journal of Soil Research, 22(2), 251-255. doi: 10.22092/ijsr.2009.127008
MLA
Rahimian, M. H. , and Vaziri, J. . "Effects of Deficit Irrigation on Canola Yield and Water Use Efficiency", Iranian Journal of Soil Research, 22, 2, 2009, 251-255. doi: 10.22092/ijsr.2009.127008
HARVARD
Rahimian, M. H., Vaziri, J. (2009). 'Effects of Deficit Irrigation on Canola Yield and Water Use Efficiency', Iranian Journal of Soil Research, 22(2), pp. 251-255. doi: 10.22092/ijsr.2009.127008
CHICAGO
M. H. Rahimian and J. Vaziri, "Effects of Deficit Irrigation on Canola Yield and Water Use Efficiency," Iranian Journal of Soil Research, 22 2 (2009): 251-255, doi: 10.22092/ijsr.2009.127008
VANCOUVER
Rahimian, M. H., Vaziri, J. Effects of Deficit Irrigation on Canola Yield and Water Use Efficiency. Iranian Journal of Soil Research, 2009; 22(2): 251-255. doi: 10.22092/ijsr.2009.127008
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