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Paper Information

Journal:   JOURNAL OF PLANT PROCESS AND FUNCTION   SPRING 2016 , Volume 5 , Number 15; Page(s) 1 To 11.
 
Paper: 

THE EFFECTS OF WATER STRESS ON SOME MORPHOLOGICAL AND PHYSIOLOGICAL CHARACTERISTICS OF SATUREJA HORTENSIS

 
 
Author(s):  SODAEIZADEH HAMID, SHAMSAIE MARYAM, TAJAMOLIYAN MAHDIYEH, MIRMOHAMMADI MEYBODI ALI MOHAMMAD, HAKIMZADEH MOHAMMAD ALI
 
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Abstract: 

In order to investigate the effect of different levels of water stress on Satureja hortensis, a completely randomized design (CRD) with four replications was carried out in the greenhouse ofYazd University in 2014. The water stress treatments including 100, 75, 50 and 25 percent of field capacity (FC) were applied. The results showed that water deficit stress significantly (p<0.01) decreased plant height, canopy cover volume, canopy cover surface, shoot and root" dry weight, root thickness as well as soluble sugars content. Also, proline, chlorophyll content and root length significantly increased under drought stress. The maximum amount of proline, a, b and total chlorophyll and root length were observed in 25% of field capacity. Maximum plant height, crown volume and leaf area were obtained at 75% of field capacity. The shoot and root dry weight and crown area were observed in plant treated at 100% of field capacity. The overall results of this study showed that S. hortensis could be adapted to drought stress by using some avoidance mechanisms such as reduced plant height, plant volume, surface and crown diameter, shoot and root dry weight, root thickness and increasing of chlorophyll contents and proline.

 
Keyword(s): SHOOT, FIELD CAPACITY, CHLOROPHYLL, PROLINE, SOLUBLE SUGARS, SATUREJA HORTENSIS
 
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