Journal of
Medicinal Plants Research

  • Abbreviation: J. Med. Plants Res.
  • Language: English
  • ISSN: 1996-0875
  • DOI: 10.5897/JMPR
  • Start Year: 2007
  • Published Articles: 3780

Full Length Research Paper

Effect of water stress on leaf relative water content, chlorophyll, proline and soluble carbohydrates in Matricaria chamomilla L.

Alireza Pirzad1*, Mohammad Reza Shakiba2, Saeed Zehtab-Salmasi2, Seyed Abolghasem Mohammadi2, Reza Darvishzadeh1 and Abbas Samadi3
1Department of Agronomy and Plant Breeding, Faculty of Agriculture, Urmia University, Urmia -Iran. 2Department of Agronomy and Plant Breeding, Faculty of Agriculture, Tabriz University, Tabriz-Iran. 3Department of Soil Science, Faculty of Agriculture, Urmia University, Urmia-Iran.
Email: [email protected] or [email protected]

  •  Accepted: 26 October 2010
  •  Published: 18 June 2011

Abstract

The effect of water stress, excess water and water deficit, on the leaf relative water, amounts of proline, water soluble sugars and total chlorophyll and chlorophyll a, b were examined, to characterize the involvement of these components in the adaptive processes. An experiment was carried out with four irrigation levels (W1, W2, W3 and W4 consisting 100, 85, 70 and 55% of field capacity, respectively) arranged in randomized complete block design with five replications. Potted seedlings of Matricaria chamomilla were used as a test medicinal plant. Leaf relative water content, percentage of proline and total soluble sugar were not affected by irrigation regimes. But, irrigation had significant effect on amount of total chlorophyll and chlorophyll a, b. The maximum amount of chlorophyll a (19 mg/g), chlorophyll b (16 mg/g) and total chlorophyll (35 mg/g) obtained from W2 and W3. The minimum amount of chlorophyll a (15 mg/g), chlorophyll b (11 mg/g) and total chlorophyll (26 mg/g) obtained from W1, W4, W4, respectively. The values of total chlorophyll and chlorophyll a, b were the same in irrigation, at 100 and 55% of field capacity.

 

Key words: Drought stress, irrigation, Matricaria chamomilla, osmolytes, proline, soluble sugar.