- Вы можете использовать опцию И / ИЛИ / НЕ для критериев, которые вы хотите добавить или. - Вы можете вернуться к обычному поиску, нажав кнопку Отмена.
Salinity causes yield and quality losses in agricultural production and therefore great economic losses around the world. Hydrogen sulfide (H2S) is known to play a crucial role to ease physiological and metabolic processes in plants, and also increases the tolerance of the plant against many abiotic stress conditions. In this study, we investigated the effects of H2S treatments (0, 25, 50, 75 and 100 mu M NaHS were applied as H2S donor) to the tomato seedlings to alleviate the harmful effects of salt stress (0, 75 and 150 mM NaCl). There was a significant decrease in plant growth and developme ...Более
The current study examined the H2S applications on growth, biochemical and physiological parameters of bean seedlings under saline conditions. The findings of the study indicated that salt stress decreased plant growth and development, photosynthetic activity, and mineral and hormone content [excluding abscisic acid (ABA)] in bean seedlings. Plant and root fresh mass and dry mass with H2S applications increased as compared to the control treatment at the same salinity level. Both salinity and H2S treatments significantly affected the net assimilation rate, stomatal conductance, transpiration r ...Более
Pumpkin is usually cultivated in arid and semiarid regions, and the lack of water stress-tolerant cultivars is a major limiting factor. Therefore, this study was carried out to identify superior water stress-tolerant genotypes. For this purpose, 44 inbred lines with superior agronomic traits were selected from the gene pool. In addition, two hybrids (G1-Mert Bey F1 and G2-Sena Hanim F1) and two landraces (G3-Hatun Tırnağı and G4-Cercevelik) with high commercial value were used as commercial cultivars. The water stress indices were calculated from seed yields from the pumpkin genotypes grown in ...Более
This study aims to determine the effects of tebuconazole substance used at different doses on the quality of tomato seedlings, retrotransposon mobility caused by this substance in the plants and its genotoxic effects and to determine the optimum dose to be used in practice in seedling production. Tebuconazole applied different concentrations (25, 50, 75, 100, 125 and 150 ppm) were tested. According to the study results, the seedling length and stem length significantly according to the applied doses. The study found out that the stem, leaf and root dry matter contents and leaf chlorophyll cont ...Более
The use of soilless culture in the cultivation of ornamental plants is becoming widespread, especially in the production of cut flowers. The aim of this review is to present a brief summary of both standard and new findings obtained from using soilless culture techniques in ornamental plant cultivation, based on a detailed literature review. In the researches reached for this review, Calendula officinalis L., Matthiola incana L., Pelargonium zonale L., Petunia x hybrita L., Pinus pinea, Cupressus arizonica, C. sempervirens, Sternbergia lutea, Galanthus elwesii Hook, Lilium candidum, Limonium s ...Более
The study aimed to determine the mean low-temperature exotherms (LTE) of the shoot tip of the dOmur F-1, Cuma F-1, Safir F-1, VT-1770, Elibol F-1, and Adelya F-1 tomato cultivars and Yerli-14 and Yerli-24 local tomato genotypes. Moreover, this investigation intended to specify the most effective dose of potassium sulfate with its efficacy time by applying four different doses of potassium sulfate (K2SO4) foliar fertilizer on the most and least tolerant cultivar. The mean LTE of the shoot tip of seedlings was determined by using differential thermal analysis (DTA). In the second part of the stu ...Более
Plant genetic resources constitute the most valuable assets of countries. It is of great importance to determine the genetic variation among these resources and to use the data in breeding studies. Cucurbita maxima species in the Cucurbitaceae family have high genetic diversity, but molecular genetic diversity studies of this species are insufficient in Turkey. To determine the genetic diversity among genotypes of Cucurbita maxima species of squash, which is widely grown in Erzincan, 14 different squash genotypes collected were examined based on the morphological parameters and molecular chara ...Более
Sufficient quantity and quality of water are essential for vegetable production.
Evaluating the individual and combined effects of drought and salt stress on plant establishment may help inform management of plant production in terms of stabilizing yield. This study investigates the effects of drought and salt stress on plant growth, nutrition elements, and select physiological parameters of tomato (Lycopersicon esculentum L. cv. H2274) through a pot experiment under greenhouse conditions. Drought stress was applied to tomato seedlings at 3 different levels of irrigation: D0 (control), D1, an ...Более
Cadmium (Cd) is a toxic and very mobile heavy metal that can be adsorbed and uptaken by plants in large quantities without any visible sign. Therefore, stabilization of Cd before uptake is crucial to the conservation of biodiversity and food safety. Owing to the high number of carboxyl and phenolic hydroxyl groups in their structure, humic substances form strong bonds with heavy metals which makes them perfect stabilizing agents. The aim of this study was to determine the effects of humic and fulvic acid (HA+FA) levels (0, 3500, 5250, and 7000 mg/L) on alleviation of Cadmium (Cd) toxicity in g ...Более
Ornamental plants are used to improve the aestheticquality of urban and rural landscapes, recreational areas, interiorscapes and commercial sites. Any negative effects of salts on ornamental plant growth have to be taken into consideration mainly for their negative influences on aesthetic value of ornamental plants. The research was conducted to determine the effects of different concentrations of calcium nitrate on some stress parameters (i.e. leaf relative water content, chlorophyll, stomatal conductance, ion leakage in the leaf tissues) and some plant growth parameters (total leaf number, n ...Более
Aim of this study was to determine t he effect of tebuconazole applications on cucumber seedling via morphological. and molecular methods. In order to determine the most appropriate dose of different concentrations (25. 50, 75, 100. 125 and 150 ppm) of tebuconazole affecting the seedling quality and preventing possible genotoxic effects, retrotransposon motility at all doses was determined. Polymorphism rates and changes in GTS values were also determined. At the applied doses, polymorphism values were found as 0%. 5.55%. 16.66%, 38.88%, 55.55% and 61.11%, respectively. The GTS value was decre ...Более
Insufficient freshwater resources require the improvement of deficit irrigation with approaches that induced high yields by increasing the adaptation of plants to physiological and photosynthetic responses to water scarcity in the soil. The aim of this study is to evaluate water productivity applying combinations of three different plant growth promoting rhizobacteria-PGPR (Bacillus megaterium TV91C, Bacillus megaterium TV6D, Bacillus subtilis RK1900) with a synthetic methylamine molecule for summer squash (Cucurbita pepo L.) at four irrigation levels (full irrigation, and 15, 30 and 45% defic ...Более