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Advances in Agriculture
Volume 2014, Article ID 641319, 12 pages
http://dx.doi.org/10.1155/2014/641319
Research Article

Response of Short Duration Tropical Legumes and Maize to Water Stress: A Glasshouse Study

1Department of Crop Production Systems in the Tropics, Faculty of Agricultural Sciences, Georg-August-University, 37077 Göttingen, Germany
2Global Change Ecology (International Elite Graduate Programme), Faculty of Biology, Chemistry and Geosciences, University of Bayreuth, 95440 Bayreuth, Germany

Received 12 September 2014; Accepted 14 December 2014; Published 31 December 2014

Academic Editor: Mumtaz Cheema

Copyright © 2014 Hossain Sohrawardy and Md. Lokman Hossain. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The study was conducted as a pot experiment in the tropical glasshouse to evaluate the response of grain legumes (Phaseolus vulgaris, Vigna unguiculata, and Lablab purpureus) in comparison to maize (Zea mays) and estimate their potential and performance. Two experiments were established using completely randomized design. Physiological measurements (stomatal conductance, photosynthetic activities, and transpiration rates) were measured using LCpro instrument. Scholander bomb was used for the measurement of plant cell water potential. Significant difference was observed in different plant species with increase of different water regimes. Among the legumes, L. purpureus showed better response in water stressed conditions. At the beginning, in dry watered treatment the photosynthetic rate was below 0 µmol m−2 s−1 and in fully watered condition it was 48 µmol m−2 s−1. In dry treatment, total dry weight was 10 g/pot and in fully watered condition it was near to 20 g/pot in P. vulgaris. The study concludes that water stress condition should be taken into consideration for such type of crop cultivation in arid and semiarid regions.