The present study was conducted to investigate the impact of textile dye on the early seedling stage of 3 crops: barley, maize, and wheat. Seeds were imbibed in different concentrations of textile dye for 12 h and were then grown in a controlled growth room for 8 days with a related dye solution. | N. ÇİÇEK, B. EFEOĞLU, D. TANYOLAÇ, Y. EKMEKÇİ, R. J. STRASSER Research Article Turk J Bot 36 (2012) 529-537 © TÜBİTAK doi: Growth and photochemical responses of three crop species treated with textile azo dyes Nuran ÇİÇEK1,*, Banu EFEOĞLU2, Deniz TANYOLAÇ3, Yasemin EKMEKÇİ1, Reto Jörg STRASSER4 1 Department of Biology, Faculty of Science, Hacettepe University, Beytepe, 06800 Ankara - TURKEY 2 Department of Biology, Faculty of Arts and Sciences, Abant İzzet Baysal University, Gölköy 14280 Bolu - TURKEY 3 Department of Chemical Engineering, Faculty of Engineering, Hacettepe University, Beytepe, 06800 Ankara - TURKEY 4 Bioenergetics Laboratory, University of Geneva, CH-1254 Jussy/Geneva - SWITZERLAND Received: ● Accepted: Abstract: The present study was conducted to investigate the impact of textile dye on the early seedling stage of 3 crops: barley, maize, and wheat. Seeds were imbibed in different concentrations of textile dye for 12 h and were then grown in a controlled growth room for 8 days with a related dye solution. Some growth and polyphasic chlorophyll fluorescence parameters were measured and analysed to appraise the effect of textile dye on the 3 crops. Although different crop species showed differences in response to different concentrations, textile dye generally affected almost all radicle growth parameters more adversely than coleoptile growth parameters. While photosynthetic performance indexes of wheat increased significantly in all textile dye treatments, those same parameters in barley strongly decreased in all concentrations. While performance indexes of maize increased up to 250 ppm, indexes decreased with the highest dye concentration. Analysis of polyphasic chlorophyll fluorescence and growth parameters allowed for the separation of wheat, which exhibited a better performance than the other crops under textile dye treatment. The results point out that the impact of textile dye is dependent .
