Y. Sepahi Sarjo; S.M. Mousavu Nik; M. Galavi; A. Ghanbari; A.Sh. Raissi; F. Nosrati
Abstract
Didar (Euphorbia tirucalli L.) from the family Euphorbiaceae, is a perennial succulent shrub with broad branched and round branches. Environmental factors are one of the most important factors affecting qualitative and quantitative traits in medicinal plants. In this study, Didar was studied in different ...
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Didar (Euphorbia tirucalli L.) from the family Euphorbiaceae, is a perennial succulent shrub with broad branched and round branches. Environmental factors are one of the most important factors affecting qualitative and quantitative traits in medicinal plants. In this study, Didar was studied in different habitats of Sistan and Baluchestan province in terms of some morphological, physiological, soil, and phytochemical characteristics. This study was conducted as a nested design and Duncan's least significant differences test at 5% level with completely randomized design with three replications using field survey and included some cities: 1- Hichan district from Nikshahr city (Kalat, Hesarak and Hashtik villages), 2- Rask city (Firoozabad, Jangal and Parood villages) and 3- Sarbaz city (Hit, Kishkour and Pirdan villages). The results showed that there was a significant difference between all the studied traits among cities and regions. In this study, morphological traits had the highest amount in Nikshahr city and the lowest height and number of branches belonged to Sarbaz city, indicating that the vegetative growth of this shrub decreases with increasing altitude. The soil studied in Nikshahr city regions was more favorable than other areas in terms of key elements such as phosphorus and potassium. The highest levels of 1- chlorophylls a and b and carotenoids and 2- proline and flavonoids were measured in spring and summer, respectively, but the highest amount of anthocyanin was observed in different cities variably. The highest amounts of 1- chlorophylls a and b and 2- carotenoids and anthocyanin were measured in Sarbaz and Rask cities, respectively. The highest amount and number of active ingredients of leachates of this plant were observed in summer.
S.J. Jazayeri; M. Mousavinick; A. Ghanbari; B. Bahreininejad
Abstract
In order to determine the effect of fertilizer and plant density on qualitative and quantitative characteristics of guar (Cyamopsis tetragonaloba L.), a medicinal-industrial plant, a factorial experiment was conducted in a randomized complete block design with three replications in 2015 and 2016 crop ...
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In order to determine the effect of fertilizer and plant density on qualitative and quantitative characteristics of guar (Cyamopsis tetragonaloba L.), a medicinal-industrial plant, a factorial experiment was conducted in a randomized complete block design with three replications in 2015 and 2016 crop years. Fertilizer was considered as the first factor at two levels of 60-70-70 and 90-100-100 kg ha-1 nitrogen, phosphorus, and potassium, respectively, and the second factor was planting density at three levels of 60, 75 and 90 plants per m2. The results showed that in the first year, the effect of fertilizer treatment levels was not significant on the traits studied except seed swelling trait. Planting density affected the number of pods significantly (1%), but had no significant effect on other traits. The interaction of fertilizer and plant density was significant on mucilage production. In the second year, the effect of fertilizer was significant only on biomass and mucilage production. Also, the effect of planting density was significant on biomass and the number of pods, and the interaction of fertilizer and planting density was significant only on the amount of mucilage. The mean comparison indicated the increase in biomass and seed yield in the second year in both factors. By reducing the plant density, the number of branches and pods per plant increased, which increased the yield. In the second year, the amount of crude protein and seed mucilage increased and decreased, respectively. In this study, the amount of seed swelling was not positively correlated with the mucilage amount. Regarding the results of the present study, as well as guar as a legume, and the possibility of supplying part of the plant nutritional needs by the plant itself, if the purpose is mucilage production, the 60-70-70 fertilizer treatment and 60 plants per m2 are recommended under similar conditions to this research.
J. Bardel; A. Ghanbari; M. Khajeh
Abstract
According to the necessity of using the substances reducing the harmful effects of salinity stress in areas with saline water and soil, and providing major plant nutrients through fertilizers, a split-plot experiment in a randomized complete block design with three replications was conducted at the Research ...
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According to the necessity of using the substances reducing the harmful effects of salinity stress in areas with saline water and soil, and providing major plant nutrients through fertilizers, a split-plot experiment in a randomized complete block design with three replications was conducted at the Research Farm of Zabol University during 2012. Two levels of irrigation water quality (0.59 and 4.180 dS.m-1 EC) were in the main plots, and four levels of fertilizer (control, chemical fertilizer in the ratio of 80:40:30 kg.ha-1 from CO (NH2)2, Ca(H2PO4) and K2SO4 respectively, 40 ton.ha-1 manure and combination of fertilizers in half amount of mentioned) were in sub-plots. Results showed that saline water irrigation (EC: 4.180 dS.m-1) increased the activity of CAT and APX antioxidant enzymes, and other enzyme activity was reduced. In addition, the content of putrescine (Put), spermine (Spm) and spermidine (Spd), proline and carbohydrates, sodium and photosynthetic pigments in cumin (Cuminum cyminum L.)leaves increased. A separate application of NPK-fertilizer and manure showed no significant difference for physiological traits except spermine content, proline, sodium, and potassium. The combined application of NPK-fertilizer and manure was more efficient in reducing the antioxidant enzymes activity of CAT and GPX and enhancing the content of spermidine, proline, photosynthetic pigments, and potassium. The potassium content in combined treatment (581 ppm) compared with the separate application of NPK-fertilizer and manure increased 17.61 and 18.53 percent, respectively. According to the results of this study, in order to reduce the unilateral use of chemical fertilizer and supply plant nutrients required in salinity, NPK fertilizer with 40:20:15 kg.ha-1 ratios with 20 ton.ha-1 manure is recommended.
E. Arazmjo; M. Heidari; A. Ghanbari
Abstract
In order to study the effects of water stress and three sources of fertilizers on flower yield, physiological parameters (chlorophyll a and b, proline and carbohydrate concentration), sodium and potassium in Chamomile (Matricaria chamomoilla L.) a field experiment in split plot design with three replications ...
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In order to study the effects of water stress and three sources of fertilizers on flower yield, physiological parameters (chlorophyll a and b, proline and carbohydrate concentration), sodium and potassium in Chamomile (Matricaria chamomoilla L.) a field experiment in split plot design with three replications was conducted in 2008 at Zabol University. Treatments included W1 (90% FC or Control), W2 (75% FC) and W3 (50% FC) as main plot and three sources of fertilizers: F1 (Control or non fertilizer application), F2 (chemical fertilizer), F3 (manure fertilizer) and F4 (compost) as sub plots. Results showed water stress at W3 treatment, reduced dry flower yield about 18.1%. In this study, however the highest flower yield was obtained from W1 and use of chemical fertilizer treatments but at W3 treatment, among the fertilizer, manure fertilizer had the best effect on flower yield in Chamomile. Water stress increased the activity of substance but the highest active substance was obtained in W2 and use of chemical fertilizer. In this experiment, chlorophyll a and b and K contents in leaves by impact of water stress decreased but free proline, total soluble carbohydrate concentration and sodium were increased under water stress. Use of manure fertilizer had the highest positive effects on physiological parameters and potassium uptake under water stress in chamomile.
A. Lotfi; A.A. Vahabi Sedehi; A. Ganbari; M. Heydari
Volume 24, Issue 4 , February 2009, , Pages 506-518
Abstract
In order to investigate the effects of the two factors (deficit irrigation and manure) on yield and quality characteristic of the Plantago ovata Forssk. and experiment was conducted at the Research Farm, Zabol University. For this purpose split plot design based on completely randomized block with 4 ...
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In order to investigate the effects of the two factors (deficit irrigation and manure) on yield and quality characteristic of the Plantago ovata Forssk. and experiment was conducted at the Research Farm, Zabol University. For this purpose split plot design based on completely randomized block with 4 replications was used. Results of the variance analysis indicated that there were significant difference between irrigation levels on the yield and it’s five dependent traits except 1000 seeds weight and Biomass. The application of manure showed significant effect for all traits except 1000 seeds weight and Plant height. Levels of irrigation and manure had no significant effects on the quality characters such as amount of mucilage and swelling factor.
