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Showing 1 to 20 of 22 for “"Osmotic potential"”.
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Tolerance of selected crops to gypsiferous water originating in coal mines
… crystal content, it increased despite decreasing osmotic potentials of the treatment solutions. The vegetative growth of sunflower, lucerne, dry bean and rye was more tolerant than seedling growth, but was more sensitive for maize and cowpea, and the same as seedling growth for sorghum, pearl …
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Influence of osmotic stress, ethanol, and a substituted pyridazinone, BAS 13-338, on the growth and lipid composition of two Chlorella species
… compared relative to their abilities to grow at osmotic potentials of -0.1, -0.5, -1.0, -1.5, -2.0 MPa, [polyethylene glycol(PEG)-induced], and for osmotically-induced changes in lipid composition. C. vulgaris growth was inhibited as osmotic potentials decreased, while C. pyrenoidosa growth was …
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Regulation of Seat-patch Water Potentials in Anurans
… water exchange in frogs have assumed that blood osmotic potential drives water uptake. However, more recent reports have suggested an intermediate control of the water potential partially separate from the osmotic potential of blood. Some reports have speculated that seat-patch may act as a …
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Selective Control o Egyptian Broomrape (Orobanche Aegyptiacapers.) by Glyphosate and its Amino Acid Status in Relation to Selected Hosts
… new control strategies. Broomrapes have two potential sources of amino acids. First, the haustorium aids in the translocation of amino acids from the host plant to the parasites. Second, broomrapes may be able to synthesize some amino acids themselves and obtain the rest from the host. …
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Sucrose -Mediated Transcriptional Regulation of Proton /Sucrose Symporters in Source Leaves of Sugar Beet and Arabidopsis Thaliana
… sucrose transporter families are regulated by osmotic potential in a novel pathway that may be involved plant responses to water stress.
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Mortality of native forest vegetation in the Kaimai ranges
… do not survive for more than a portion of their potential life spans. Seral species do not reach their potential stature and minor droughts appear to trigger mortality releasing the more permanent species. The distinct topographic and altitudinal bounds of the mortality and dendroclimatic …
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Physiological studies of in vivo and in vitro water requirements and water relations of Chrysanthemum morifolium Ramat
… in response to depriving them of water. Water potential, osmotic potential, and pressure potential proved appropriate parameters for indicating plant water status. Diurnal changes in water status indicated more variable levels during the day than at night. The most stable and representative …
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Respuesta germinativa y tolerancia al estrés salino en comunidades dunares
… parameters were studied: base temperature, base osmotic potential, thermal time and hydrotime. A multivariate analysis is performed through Principal Component Analysis and Factor Analysis in order to search for possible groupings between species. As a final result it is shown that the …
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Water relations and cutting management of switchgrass
… content (SWC) were measured daily. Leaf water potential (Ψ), osmotic potential (Π), relative water content, and concentrations of K, Na, Ca, and total free sugars were measured at the end of each water-stress cycle. Osmotic potential at full turgor (Π<sub>100</sub>), symplastic water content …
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Pegaruh Konsentrasi Dan Lama Perendaman Menggunakan Polyethylene Glicol (PEG) 6000 Terhadap Viabilitas Benih Jarak Pagar (Jatropha curcas L)
… of the inclusion compound seed at low water potential, usually done by immersion. Osmoconditioning succes is determined by the amount of water into seeds, osmotic potential and the type of solution used polyetylene glicol (PEG) 6000. The used of PEG in invigoration because the compound is not …
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Development of Pythium oligandrum drechsler for biological control of fungal soil-borne diseases.
… was reduced markedly below -1.0 to -1.5 MPa osmotic potential and ceased at approximately -2.5 to -3.5 MPa; similar results were obtained for oospore germination. Growth and oospore germination were affected more by low matric than by low osmotic potentials. Oospore production required an …
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Germination niche of an emergent invasive grass, Arthraxon hispidus
… to abiotic stressors such as salinity and osmotic potential. The concentration required to limit germination to 50% (LD50) in the populations tested surpassed soil salinity found in the contiguous United States and some tidal systems (Frederick, MD = 354; Lincoln, MO = 354; Williamsburg, VA …
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Physiological response of loblolly pine seedlings to moisture-stress conditioning and their subsequent performance during water stress
… (MWS, seedlings watered only when needle water potential reached -0.8 MPa) and a severe stress treatment (SWS, seedlings watered only when water potential reached -1.4 MPa). After the conditioning period, numerous physiological and morphological parameters were measured, and performance of …
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The response of four ericaceous shrub species to multiple environmental resource variation
… All four species were able to reduce their osmotic potential and water deficit at the turgor loss point seasonally, especially in low water treatments. Low soil water availability also reduced midday conductance and water potential in all four species. Rhododendron maximum and <i>R. …
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Physiological Responses of Cotton Genotypes to Water-Deficit Stress during Reproductive Development
… of leaves, which consequently would result in osmotic adjustment through accumulation of compatible solutes, increased activity of enzymes, and perturbation of carbohydrates metabolism in leaves and flowers of cotton plants, and differences in drought tolerance among the genotypes would exist. …
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The combined effects of fertilization and relative water limitation on tissue water relations, hydraulic parameters and shallow root distribution in loblolly pine (Pinus taeda L.)
… bulk modulus of elasticity, more negative osmotic potential at 100% relative water content, and an increased apoplastic water fraction. As there were indications of reduced water use and moisture stress in the absence of shoot level responses under less severe drought, such parameters are …
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High-throughput phenotyping and genetic mapping of drought stress related traits in setaria (Setaria spp) and rice (Oryza spp)
… the genetic architecture of the trait and potentially be used in breeding programs develop plants with altered stomatal density. In the Chapter 3, a set of 208 Setaria accessions were screened under ample or limiting water supply under field conditions in Illinois. The traits and …
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Impacts of Salinity on Germination, Growth, Oxalate and Inorganic Ion Relations
… with a wide geographical distribution, has a potential as a high yielding forage plant for saline soils. However, the autecology of kochia in general, and the Saskatchewan populations in particular, is virtually unexplored. Germination and early seedling growth responses of different …
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REGULATING CYTOKININ METABOLISM DURING INFLORESCENCE MERISTEM DEVELOPMENT TO PROMOTE HIGHER RICE PRODUCTIVITY THROUGH CHANGES ON PLANT ARCHITECTURE
… in panicle architecture determination and are potential targets for rice molecular breeding programs. Drought stress is one of the most damaging factors in agriculture due to the unpredictability of its occurrence, intensity, timing, and duration, as well as its interaction with other abiotic …
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Pengaruh penambahan ZPT 2,4-D dan PEG (Polyethylene Glykol) 6000 pada media MS (Murashige & Skoog) untuk produksi metabolit sekunder pada kultur kalus stevia (Stevia rebaudiana Bertoni M.)
… metabolite. PEG is a compound that can lower the osmotic potential of the solution, so that the water can not be absorbed, resulting in plants that causes osmotic stress induces proteins, genes coding for enzymes involved in forming the biosynthesis of secondary metabolites. This research use …
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