The effect of water and soil regimes on morphological and metabolic characteristics of the medicinal plant Aloe vera
Subject Areas : Crop Production ResearchDavood Akbari 1 , Omolbanin Nattaj 2 , Nadia Fahimi borkhali 3
1 - دانشگاه آزاد اسلامی واحد قائم شهر
2 - M.Sc Graduated, Department of Agronomy, Qaemshahr Branch, Islamic Azad Univwersity, Qaemshahr, Iran.
3 - Mazandaran Region 2 Secretary of Education, Health, Mazandaran, Iran.
Keywords: Chlorophyll, Field capacity, Medicinal plants, Metabolic characteristics, Morphological characteristics,
Abstract :
In order to investigate the effect of drought stress on water use efficiency and some properties of Aloe Vera plants, an experiment was conducted in 2011. A pot experiment was carried out under controlled conditions in a greenhouse as randomized complete block design with four treatments and three replications. Different levels of drought include 100 percent of field capacity (FC) (control treatment, without stress), 75 percent FC, 50 percent FC and 25 percent FC, respectively. Statistical analysis showed that drought had a significant effect on growth parameters. With increasing stress, height, number, width and dry, thickness and size of leaves, fresh and dry weight and root volume was decreased. Water use efficiency was increased with increasing stress. Treatment, 25 percent and 100 percent of FC has the highest and lowest water use efficiency, respectively. The highest amount of chlorophyll a and b and total chlorophyll was obtained in the treatment of 100 percent FC. The amount of proline, soluble sugar and insoluble was maximum in 25 percent FC. In treatments 100 percent FC the highest amount of gel was obtained.
