TITLE	Drought stress effects on water relations of wheat
AUTHOR	M.R.B. Siddique Institute of Postgraduate Studies in Agriculture, Gazipur-1703, Bangladesh A. Hamid Institute of Postgraduate Studies in Agriculture, Gazipur-1703, Bangladesh M.S. Islam Institute of Postgraduate Studies in Agriculture, Gazipur-1703, Bangladesh
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ABSTRACT	Drought effects on the water relations of four wheat (Triticum aestivum L.) cultivars were evaluated. Four cultivars, Kanchan, Sonalika, Kalyansona, and C306, were grown in pots and subjected to four levels of water stress at vegetative or anthesis stages or both. Exposure of plants to drought led to noticeable decreases in leaf water potential and relative water content with a concurrent increase in leaf temperature. The higher leaf water potential and relative water content as well as lower leaf temperature were associated with a higher photosynthetic rate. Drought stressed plants displayed higher canopy temperature than well-watered plants at both vegetative growth and anthesis growth stages. Successive stresses at both developmental stages raised the canopy temperature much higher than in plants stressed only once.
KEYWORD	Drought; Triticum aestivum L.; Water relations;
ARTICLE INFO	Botanical Bulletin of Academia Sinica, Volume 41 Number 1 January 2000, page 35-39, 5 pages
PUBLISHER	Institute of Plant and Microbial Biology, Academia Sinica, Taipei, Taiwan, Republic of China