Usefulness of maximum diurnal trunk shrinkage as a continuous water stress indicators of pomegranate (Punica granatum) trees
نویسنده
چکیده
The objective of this research was to asses the feasibility of using maximum diurnal trunk shrinkage (MDS) obtained by means of LVDT sensors, as a plant water stress indicators for pomegranate trees. The experiment was carried out with mature trees grown in the field under three irrigation regimes: (i) control (well watered trees); (ii) trees continuously deficit irrigated at 50% of the control regime (SDI); and (iii) trees that had a summer water stress cycle being irrigated at 25% of the control rates only in July and August (RDI). Control trees maintained lower MDS values than the SDI ones. In the RDI treatment, as water restrictions began, there was a slow increase in MDS, in correspondence with a decrease in stem water potential (Ψstem). When water was returned at full dosage, the RDI recovered to MDS and Ψstem values similar to the control. However, lower MDS for a given values were observed as the season advanced. The magnitude of differences between well watered and deficit irrigated trees was much larger in the case of MDS than for Ψstem. The tree-to-tree variability of the MDS readings was more than four times higher than for Ψstem.
منابع مشابه
Effect of Pomegranate (Punica granatum L.) Juice and Methanolic Peel Extract on Testis of Male Rats
Although only recently Punica granatum (pomegranate) has been acclaimed for its health benefits, this fruit has long been cultivated and consumed, as a fresh fruit or in the form of beverage, especially in the Mediterranean region. In the present study, the antioxidant effects of the methanolic extract of pomegranate peels (MEPP) and pomegranate juice (PJ) were evaluated in normal male rats. Al...
متن کاملThe Use of Pomegranate (Punica granatum L.) Phenolic Compounds as Potential Natural Prevention Against IBDs
متن کامل
Effect of Punica granatum rinds ethanolic extract on healing of fungated wounds in rabbits
Pomegranate (Punica granatum) is an ancient fruit used in various systems of medicine for a variety of ailments. The study has been designed to investigate the role of ethanolic extract of rinds of Punica granatum as antimicrobial on 6 types of bacteria includes; Pseudomonas aeruginosa, Salmonella typhi, Staph aureus, E.coli, Streptococcus spp. and Klebsiella pneumonia and antifungal activity o...
متن کاملStudy of biosorptive potential in the peel of Citrus reticulata, Punica granatum, Daucus carota and Momordica charantia
Different physiochemical parameters such as color, odour, taste, pH, Electrical conductivity, total dissolved solids, concentration of cations & anions were determined in the waste water samples that were collected in the vicinity of Kuala Lumpur city. Peel of Citrus reticulata (orange), Punica granatum (pomegranate), Daucus carota (carrot) and Momordica charantia (bitter gourd) were used to st...
متن کاملNatural conjugated and trans fatty acids in seed oils and phytochemicals in seed extracts issued from three Tunisian pomegranate (Punica granatum. L) cultivars
Pomegranate (Punica granatum L.) is one of the oldest edible fruits widely spread in Mediterranean countries, Iran, India and to some extent in the U.S. (California), China, Japan and Russia (Fadavi et al., 2006). In Tunisia, the cultivation of pomegranate has taken a great development in recent years. The pomegranate is cultivated in all regions with a concentration in the southern oases (Gabe...
متن کامل