Abstract
It was studied the yield and water use efficiency of cotton cultivars under irrigation, in an experiment carried out at the Embrapa Cotton Farm, Barbalha county, CE, Brazil. The experimental design used was a randomized complete block design with four replications, totaling 60 plots arranged in a split block scheme, in a 3 x 5 factorial combination of three cotton cultivars (BRS 286 (C1), BRS Aroeira (C2) and BRS Araripe (C3)) and five irrigation levels (260.93 (L1), 418.93 (L2), 514.21 (L3), 711.81 (L4) and 894.68 (L5)) mm, corresponding to 36, 58, 72, 100 and 126% of ETc. The cotton was planted in single rows spaced of 1.0 x 0.20 m, with areas per plot of 12 x 15 (180 m 2 ), per subplot of 12 x 3 m (36 m 2 ), with an area of 6 m 2 , and total experimental of 2160 m 2 . The volume of water replacement in each irrigation event was based in the second split block (3 - 6 m of central line sprinkler), called control level, and determined by crop evapotranspiration (ET0), estimated by Penman-Monteith, multiplied by cotton Kc in its phases of development (ETC = ET0 x Kc). It was observed that the yield of the cultivars were affected by applied irrigation levels and the BRS Araripe e BRS 286, presented rising incomes according increase in
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
