Effect Of  Time Sprinkle And Spectrum Concentraction Herbicide  On Growth And Yield Of  Zea Mayes L  Corn  And Accompanying Weeds

.H . Antar, Salim; . R . Ahmad Altaaf, Mohammad

	Effect Of Time Sprinkle And Spectrum Concentraction Herbicide On Growth And Yield Of Zea Mayes L Corn And Accompanying Weeds
Tikrit Journal of Pure Science
Article 1, Volume 18, Issue 1, 2013, Pages 1-9
Authors
Salim .H . Antar; Mohammad . R . Ahmad Altaaf
Abstract
The experiment was carried out in as spring agricultural seasons (2011) at two locations : Field Crops Dept research station / University of Tikrit and Aldabsaa / Salahaldeen provance . The study was included two factors , the effect of time of applited herbicide ( befor and after germination ) , and the spectrum concentrations (150 , 300 , 450 cm3) & control treatment was added . The data were analysed according to the RCBD , using Duncan test . The number of weeds and dry thier weights significant decreased at Aldabsaa location as compared those obtaind with Alqadesea location Aldabsa location increase in hight plant , weight of 500 grains , yield , biological yield and oil percent compare with Alqadesea location . All characters be did not differ significant whether the herbicide applied As the conent of herbicide increased the number of weeds & their dry weight , highly increased as with untreatment plants ,All herbicides with different concentration did not show any effect on the dry weight of 500 grain & biological yield between the all herbicide concentration . The interactions between locations and time of applied affect on plant hight , yield of plant , wight of 500 grain , biological yield and oil percent , while their intractions were not significant on No of weed & dry weights , The interaction between locations and herbicide concentrations , and between time of applied with herbicide concentractions and the interactions between the three factors significantly affected all characters .

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