نتایج جستجو برای: shoot fresh weight
تعداد نتایج: 414464 فیلتر نتایج به سال:
The effects of Drought and salinity stress on the growth and chemical compositions pennyroyal(Mentha pulegium L.) plant were investigated. This experiment was carried out in a factorial-randomized design with four replications in controlled conditions and plantlets were subject to four soil moisture regimes (40, 60, 80 and 100 of field capacity (FC)) and five salt treatments with 0, 25...
Optimizing the effectiveness of herbicides by additives is one of the ecological and economical approaches for weed management. The aim of this study was to investigate the effect of vegetable oils on the efficacy of clethodim herbicide in control of foxtail as a factorial based on a completely randomized design including clethodim concentration in six levels (0, 7.5, 15, 30, 60 and 120 g ai pe...
Undifferentiated, highly chlorophyllous cell cultures; undifferentiated white cell cultures; green, shoot-forming cultures; and white, shoot-forming cultures of Digitalis parpurea L. were established and subcultured every 3 weeks in liquid media in the light or in the dark. The digitoxin content, the chlorophyll content, and the ribulose bisphosphate carboxylase activity of these cultures were ...
The effect of arbuscular mycorrhizal (AM) fungus on growth and photosynthetic pigments in medicinally important Coriandrum sativum with different levels of Cadmium (Cd) was investigated. Plants inoculated with and without AM fungi were grown in soil with 0, 50 and 100 Cd mg kg soil. The plants 1 inoculated with AM fungi showed better growth and less toxic symptoms. Photosynthetic pigments were ...
This experiment was conducted to determine allopathic effects of Cyperus rotundus extracts on the tomato germination. It was a completely randomized design (CRD) with four replications, carried out in the laboratory of the Agricultural College of University Jiroft during 2011. The various test treatments were extracts of Cyperus rotundus taken from aerial organs, root, and com...
In the commercial production of roses, introducing a method to reduce the time of propagation with maximum success is crucial. This study was conducted to investigate the effect of different concentrations (0, 1500, 3000, 4500 mg/L) of Indole-3-butyric acid (IBA) on propagation of three cultivars of Rosa hybrid L. ('Dolce Vita', 'Samurai' and 'Utopia') by stenting (simultaneous cutting and graf...
Nickel (Ni) is the most recently discovered essential element for higher plants. But there is limited information about the effect of this element on yield and nitrogen (N) metabolism of different plants. In this research, the interaction of Ni supplement and N source was studied on nitrate accumulation and growth of lettuce (Lactuca sativa L. cv. Baker) in solution culture. In a greenhouse exp...
The research was performed to define the effect of water deficit on early growth, biomass allocation and biochemical constituents, proline metabolism and yield of five varieties of bhendi (Abelmoschus esculentus (L.) Moench.) plants. We found that there were significant differences in early growth, dry matter accumulation, biochemical constituents and proline metabolism among the five varieties...
One of the most important limiting factors of crop growth in the arid and semi-arid regions is water deficit. Mycorrhizal fungi is one of the most important microorganisms in the rhizosphere. The effects of these fungi apply via changes on some of the characteristics of roots and nutrients uptake in host plants under drought conditions. In order to evaluate the effect of arbuscular mycorrhizal ...
to investigate the effects of deficit irrigation and different levels of nitrogen fertilizer on somequantitative and qualitative properties of melissa, a pot experiment was conducted for one year (2011) inmazandaran province. experiment was carried out as a factorial based on randomized complete blockdesign with three replications. irrigation treatments (25, 52 and 75 percent field capacity, fc...
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