scholarly journals The impact of foliar application of salicylic acid on carrot plants (Daucus carota L.) under drought stress conditions

2020 ◽  
Keyword(s):  
Salicylic Acid ◽  
Drought Stress ◽  
Daucus Carota ◽  
Foliar Application ◽  
Stress Conditions ◽  
Daucus Carota L ◽  
The Impact

scholarly journals FOLIAGE APPLIED SILICON AMELIORATES DROUGHT STRESS THROUGH PHYSIO-MORPHOLOGICAL TRAITS, OSMOPROTECTANTS AND ANTIOXIDANT METABOLISM OF CAMELINA (Camelina sativa L.) GENOTYPES

2021 ◽  
Vol 20 (4) ◽  
pp. 43-57
Author(s):  
Zahoor Ahmad ◽  
Ejaz Ahmad Warraich ◽  
Muhammad Aamir Iqbal ◽  
Celaleddin Barutçular ◽  
Hesham Alharby ◽  
...  
Keyword(s):  
Water Stress ◽  
Drought Stress ◽  
Chlorophyll Content ◽  
Foliar Application ◽  
Negative Impact ◽  
Turgor Pressure ◽  
Water Relation ◽  
Stress Conditions ◽  
Antioxidant Metabolism ◽  
The Impact

Silicon (Si) is one of the best plant defense elements against the biotic and abiotic stresses. Camelina plants accumulate Si which serves in protection against drought stress. The present study was conducted to investigate the impact of different doses of foliage applied Si (0, 3, 6 and 9 mM) under water stress (40% field capacity, FC) and non-stress conditions (100% FC) on camelina genotypes (Canadian and Australian). The imposed drought drastically decreased the growth parameters like root-shoot length and plant fresh and dry weight and also had negative impact on the chlorophyll content along with water relation attributes (water potential, osmotic potential and turgor pressure). In contrast, total free amino acids, total soluble proteins, proline and antioxidants such as ascorbic peroxidase (APX), superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) were enhanced especially in water stressed Canadian genotype, while osmoprotectants (flavonoids, anthocyanins and glycinebetaine) and phenolics contents were decreased. On the other hand, the foliar application of Si was instrumental in enhancing the growth of camelina by increasing the chlorophyll contents and water relation of stressed and non-stressed plants. Similarly, the biochemical, osmoprotectants and antioxidant metabolism was also improved in camelina stressed plants through the application of foliar Si. In conclusion, foliar application of 6 mM Si at vegetative growth stage played a vital role in alleviating the drastic impact of water stress on camelina growth by improving the water status, chlorophyll content, accumulation of phenolics and osmoprotectants and activating antioxidants. Therefore, the foliar application of Si could be developed as an important biologically viable strategy for boosting the tolerance in camelina plants to water stress conditions.

scholarly journals Co-application of bio-fertilizer and salicylic acid improves growth, photosynthetic pigments and stress tolerance in wheat under drought stress

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9960
Author(s):  
Ammar Azmat ◽  
Humaira Yasmin ◽  
Muhammad Nadeem Hassan ◽  
Asia Nosheen ◽  
Rabia Naz ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Drought Stress ◽  
Drought Tolerance ◽  
Photosynthetic Pigments ◽  
Foliar Application ◽  
Combined Treatment ◽  
Foliar Spray ◽  
Stress Conditions ◽  
Wheat Crop ◽  
Combined Application

Drought stress hampers the growth and productivity of wheat crop worldwide. Thus far, different strategies have been proposed to improve drought tolerance in wheat but the combined application of plant growth-promoting rhizobacteria formulated bio-fertilizer (BF) and salicylic acid (SA) has not been thoroughly explored yet. Therefore, a pot experiment was conducted to observe the effect of SA, BF, and their combination on wheat plants under optimal and drought stress conditions. Seeds priming was done with BF (107 CFU mL−1). After 2 weeks of germination, SA (one mM) was applied as a foliar spray. Drought stress was applied by withholding water supply at three-leaf stage (30 d old plants) for the next 15 d until soil moisture dropped to 10%. Foliar application of SA increased the bacterial population of BF significantly compared to the sole application of BF under irrigated as well as drought stress conditions. Co-application of BF and foliar spray of SA induced drought tolerance in wheat plants by enhancing plant biomass, photosynthetic pigments, relative water content and osmolytes, and activities of the defense-related system. Plants treated with SA and BF together under drought stress had significantly increased leaf water status, Chl a, Chl b, and carotenoids synthesis by 238%, 125%, 167%, and 122%, respectively. Moreover, the co-application of SA and BF showed maximum SOD, POD, APX, and CAT activities by 165%, 85%, 156%, and 169% in the leaves while 153%, 86%, 116% and 200% in roots under drought stress. Similarly, the combined treatment exhibited a pronounced decrease in MDA content by 54% while increased production of proteins and proline by 145% and 149%, respectively. Our results showed that the co-application of SA and BF induced better drought tolerance as compared with the sole application of SA or BF. The results obtained herein suggest that combined application of BF and SA can be applied to the wheat crop to greatly improve drought tolerance in field conditions.

scholarly journals Physiological Responses of Salinized Fenugreek (Trigonellafoenum-graecum L.) Plants to Foliar Application of Salicylic Acid

Plants ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 657
Author(s):  
Reda E. Abdelhameed ◽  
Arafat Abdel Hamed Abdel Latef ◽  
Rania S. Shehata
Keyword(s):  
Salicylic Acid ◽  
Salt Stress ◽  
Foliar Application ◽  
Shikimic Acid ◽  
Plant Tolerance ◽  
Physiological Mechanisms ◽  
Content Index ◽  
Malondialdehyde Content ◽  
Total Free Amino Acids ◽  
The Impact

Considering the detrimental effects of salt stress on the physiological mechanisms of plants in terms of growth, development and productivity, intensive efforts are underway to improve plant tolerance to salinity. Hence, an experiment was conducted to assess the impact of the foliar application of salicylic acid (SA; 0.5 mM) on the physiological traits of fenugreek (Trigonellafoenum-graecum L.) plants grown under three salt concentrations (0, 75, and 150 mM NaCl). An increase in salt concentration generated a decrease in the chlorophyll content index (CCI); however, the foliar application of SA boosted the CCI. The malondialdehyde content increased in salt-stressed fenugreek plants, while a reduction in content was observed with SA. Likewise, SA application induced an accumulation of proline, total phenolics, and flavonoids. Moreover, further increases in total free amino acids and shikimic acid were observed with the foliar application of SA, in either control or salt-treated plants. Similar results were obtained for ascorbate peroxidase, peroxidase, polyphenol oxidase, and catalase with SA application. Hence, we concluded that the foliar application of SA ameliorates salinity, and it is a growth regulator that improves the tolerance of fenugreek plants under salt stress.

Foliar application and seed priming of salicylic acid affect growth, fruit yield, and quality of grape tomato under drought stress

2021 ◽  
Vol 280 ◽  
pp. 109904
Author(s):  
Remi Chakma ◽  
Arindam Biswas ◽  
Pantamit Saekong ◽  
Hayat Ullah ◽  
Avishek Datta
Keyword(s):  
Salicylic Acid ◽  
Drought Stress ◽  
Foliar Application ◽  
Seed Priming ◽  
Fruit Yield ◽  
Yield And Quality

scholarly journals Chemical composition and antimicrobial activities of essential oils of Ruta graveolens plants treated with salicylic acid under drought stress conditions

2018 ◽  
Vol 4 (2) ◽  
pp. 254-264 ◽  
Author(s):  
Eman Zekry Attia ◽  
Rehab Mahmoud Abd El-Baky ◽  
Samar Yehia Desoukey ◽  
Mahmoud Abd El Hakeem Mohamed ◽  
Mokhtar Mohamed Bishr ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Drought Stress ◽  
Chemical Composition ◽  
Essential Oils ◽  
Antimicrobial Activities ◽  
Stress Conditions ◽  
Ruta Graveolens

Mitigating drought stress in sesame by foliar application of salicylic acid, beeswax waste and licorice extract

2020 ◽  
Vol 231 ◽  
pp. 105997 ◽  
Author(s):  
Nasibeh Pourghasemian ◽  
Rooholla Moradi ◽  
Mehdi Naghizadeh ◽  
Tommy Landberg
Keyword(s):  
Salicylic Acid ◽  
Drought Stress ◽  
Foliar Application ◽  
Licorice Extract

scholarly journals Effect of intercropping carrot (Daucus carota L.) with two aromatic plants, coriander (Coriandrum sativum L.) and summer savory (Satureja hortensis L.), on the population density of select carrot pests

2016 ◽  
Vol 28 (1) ◽  
pp. 13-18 ◽  
Author(s):  
Beata Jankowska ◽  
Elżbieta Wojciechowicz-Żytko
Keyword(s):  
Population Density ◽  
Daucus Carota ◽  
Positive Influence ◽  
Coriandrum Sativum ◽  
Aromatic Plants ◽  
Psila Rosae ◽  
Human Interference ◽  
Daucus Carota L ◽  
Beneficial Insects ◽  
The Impact

AbstractIntercropping, or the use of different aspects of the interaction between organisms in ecosystems, can be classified as an ecological method that limits harmful human interference in the environment, especially the consumption of chemicals. The impact of intercropping carrot with corianderCoriandrum sativumL. and summer savory Satureja hortensisL. on the occurrence of select carrot pests was estimated in the years 2010-2011. Intercropping had a significant effect on the decrease of the number of roots damaged by carrot rust flyPsila rosae.During harvest, the least number of damaged roots was observed in combination with summer savoryS. hortensisL. The number of carrot psyllidTrioza viridulaZett. and aphids on carrot leaves and roots damaged by nematodes was significantly lower on plots where carrot was intercropped. Intercropping both herbs had a positive influence on the number of beneficial insects. In all of the years of the study, the highest number of Coccinellidae and Syrphidae were observed on plots where carrot was intercropped with coriander.

scholarly journals Effects of Exogenous Salicylic Acid on Drought Response and Characterization of Dehydrins in Impatiens walleriana

Plants ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1589
Author(s):  
Dragana D. Antonić ◽  
Angelina R. Subotić ◽  
Milan B. Dragićević ◽  
Danijel Pantelić ◽  
Snežana M. Milošević ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Salicylic Acid ◽  
Drought Stress ◽  
De Novo ◽  
Foliar Application ◽  
Drought Response ◽  
Leaf Transcriptome ◽  
Relative Water ◽  
Impatiens Walleriana

Impatiens walleriana is a valued ornamental plant sensitive to drought stress. We investigated whether the foliar application of 2mM salicylic acid (SA) can protect potted I. walleriana plants from drought stress. The plants were divided into: watered plants, drought-stressed plants, watered plants treated with SA and drought-stressed plants treated with SA. The number of flowers and flower buds, relative water content (RWC), contents of malondialdehyde (MDA) and proline (Pro) and the activities of superoxide dismutases, catalases and peroxidases were recorded at different time points. Three dehydrin sequences were identified in de novo assembled leaf transcriptome: IwDhn1, IwDhn2.1 and IwDhn2.2. Drought stress caused wilting, floral abortion, reduction of RWC and increased MDA—an indicator of lipid peroxidation. In response to drought, Impatiens accumulated Pro and induced chloroplastic Cu/ZnSOD and two peroxidase isoforms. The most remarkable drought response was strong induction of IwDhn2.1 and IwDhn2.2. Rehydration restored RWC, Pro level, Cu/ZnSOD activity and dehydrins expression in drought-stressed plants approximately to the values of watered plants.SA had ameliorating effects on plants exposed to drought, including prevention of wilting, preservation of RWC, increased Pro accumulation, modulation of antioxidative activities and remarkable decrease of lipid peroxidation, but without effects on flowers’ preservation.

Effective microorganism levels in the performance of carrot crop (Daucus carota L.) chantenay variety in Cayhuayna edafoclimatic conditions – 2016

2019 ◽  
Vol 1 (1) ◽  
pp. 55-60
Author(s):  
Juan Diolando Villanueva- Reátegui, ◽  
Keyword(s):  
Daucus Carota ◽  
Organic Agriculture ◽  
Foliar Application ◽  
Block Design ◽  
Organic Fertilizers ◽  
Effective Microorganisms ◽  
Foliar Fertilizer ◽  
Daucus Carota L ◽  
Randomized Block Design ◽  
Effective Microorganism

The research levels of microorganisms effective in the yield of carrot (Daucus carota l.) Chantenay variety under edaphoclimatic conditions of Cayhuayna, was carried out in the District of Pillcomarca, Province and Huánuco Region; With the purpose of evaluating the effect of the organic fertilizers on the yield of the carrot crop. A completely randomized block design was used, with 12 treatments and 3 replicates using the parametric F (ANVA) tests, and Duncan, the incorporation of Compost with MS was tested: 4, 6 and 8 t / ha, -A (Foliar): 1.0 and 2.0 l / rucksack. We evaluated yield by weight per experimental net area and then transformed yield per hectare; The results obtained in carrot yield were on average 43.33 tons with the foliar application of 1 liters of effective microorganisms and the incorporation of 8 tons of compost. Therefore, it is considered necessary to promote, promote and disseminate the technology of efficient microorganisms among f armers and growers who grow carrots, in order to obtain good yields and promote organic agriculture. Keyword: Compost, foliar fertilizer, effective microorganisms and yield.

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