Document Details

Document Type : Thesis 
Document Title :
Effect Of Salicylic Acid and Irrigation Regimes on Growth and Chemical Compositions of Plectranthus tenuiflorus Plants
تأثير حمض السالسليك و مستويات الري على النمو و المحتوى الكيميائي لنبات الشارة
 
Subject : biological sciences department 
Document Language : Arabic 
Abstract : Plants subjected to environmental stresses often exhibit physiological and biochemical changes that are affecting plant growth and physiology. Water deficit, as one of these stresses, is frequently a result of drought condition and often causes morphological and physiological problems for the life cycle and productivity of plants. Moreover, medicinal plants represent an important health and economic component of biodiversity. It is essential to make the complete inventory of the medicinal component of the flora of any country for conservation and sustainable use. The flora of Saudi Arabia is one of the richest biodiversity areas in the Arabian Peninsula and comprises very important genetic resources of crop and medicinal plants. Plectranthus tenuiflorus is a medicinal and aromatic plant that is traditionally used to treat skin, digestive and respiratory diseases. This study was undertaken to determine the effect of different water regimes on the growth and chemical composition of of Plectranthus tenuiflorus, and to investigation the effect of salicylic acid (SA) on alleviating the deleterious effect of drought on the growth and physiological parameters of the plants. Data showed that water stress decreased dry and fresh weights as well as Relative growth rate (RGR) particularly at 40% field capacity (FC) in the absence of SA. Values of photosynthetic pigments, sugars, proteins, elemental nutrients were decreased by severe water stress while SA treatments improved these values. Proline content increased under water stress. The electrophoresis studies showed that some new protein bands were observed probably to increase the ability of plants to withstand the deleterious effect of water stress. 
Supervisor : Dr.Sameera O. Bafeel 
Thesis Type : Master Thesis 
Publishing Year : 1433 AH
2012 AD 
Co-Supervisor : Prof. Ansary E. Moftah 
Added Date : Sunday, May 13, 2012 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
رواء سعود جلالJalal, Rewaa SauodResearcherMaster 

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