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Paper Information

Journal:   IRANIAN JOURNAL OF MEDICINAL AND AROMATIC PLANTS   FALL 2008 , Volume 24 , Number 3 (41); Page(s) 342 To 352.
 
Paper: 

INVESTIGATION ON GROWTH PARAMETERS CHANGES OF THREE CULTIVARS OF GUAYULE (PARTHENIUM ARGENTATUM GRAY.) UNDER DIFFERENT IRRIGATION TREATMENTS

 
 
Author(s):  BAHERNIK Z.*, ABASZADEH B., NADERI B.
 
* RESEARCH INSTITUTE OF FORESTS AND RANGELANDS, TEHRAN, IRAN
 
Abstract: 

Water stress affects on essential oil yields and secondary metabolites in plants. In this study the influence of irrigation treatments on plant height, diameter, canopy, fresh and dry weight of different cultivars of Parthenium argentatum Gray. were investigated. This experiment was undertaken in analytical split plot design with three replications and four irrigation treatments, consisting of: FC (full field capacity); two moderate treatments (3/4 and 1/2 of FC) and sever stress (1/4 of FC). The results showed that the average of plant height, diameter, canopy, fresh and dry weight, reduced but rubber and resin percentages increased with declining of irrigation. The maximum stem height and diameter were observed for FC treatment in UC/103 (56.33 cm) and CAL6 (2.76 cm) but the minimum stem height and diameter were observed in HS treatment in CAL6 (35 cm) and UC/103 (1.6 cm) respectively. The maximum and minimum canopies were observed in FC treatment in CAL7 and HS treatment in UC/103 respectively. The maximum stem fresh and dry mass accumulation were observed in FC treatment in UC/103 with 810 and 384 g. In HS treatment the minimum stem fresh weight was found in UC/103 and CAL7 respectively with 172.5 and 131.7 g. While the minimum stem dry mass observed in UC/103 (61.03 g).

 
Keyword(s): PARTHENIUM ARGENTATUM GRAY., GROWTH PARAMETERS, IRRIGATION TREATMENTS
 
References: 
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