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Asian Journal of Plant Sciences

Year: 2003  |  Volume: 2  |  Issue: 13  |  Page No.: 952 - 954

Morpho-physiological Response of Maize Inbred Lines under Drought Environment

Muhammad Aslam and Muhammad Hammad Nadeem Tahir


Ten inbred lines of maize viz. MO-17, DK-656, IZI-7103, SYP-31, AYP-17, H-93, B-73, A-660, IZI-4001 and KU-2301 were evaluated under drought stress for different morpho-physiological traits. These traits included yield per plant, seedling survival rate at Treat I, II, III, IV, leaf venation, stomatal frequency, transpiration rate, net photosynthesis, photosynthetically active radiations, hydrophilic colloids, relative water contents, root/shoot ratio and water potential. The experiment was laid out following a randomized complete block design with three replications. The inbred lines were highly significantly different for all the characters studied except net photosynthesis. Maximum variability was observed for net photosynthesis followed by root/shoot ratio. The inbred lines H-93 and IZI-4001 performed best for most of the traits and these could be used in breeding programmes for drought tolerance in maize.

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