scholarly journals Salicylic-Acid-Regulated Antioxidant Capacity Contributes to Growth Improvement of Okra (Abelmoschus esculentus cv. Red Balady)

Agronomy ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 168
Author(s):  
Sabry M. Youssef ◽  
Antonio López-Orenes ◽  
María A. Ferrer ◽  
Antonio A. Calderón
Keyword(s):  
Salicylic Acid ◽  
Antioxidant Capacity ◽  
Phenylalanine Ammonia Lyase ◽  
Foliar Application ◽  
Phenolic Metabolism ◽  
Global Food Security ◽  
Beneficial Effects ◽  
Yield And Quality ◽  
Prime Concern ◽  
Global Food

The improvement of crop yield and quality are currently of prime concern to achieve global food security and sustainability. Plant elicitation with salicylic acid (SA) has been shown to play a key role in regulating plant growth and productivity. Here, the effects of foliar SA application (1, 2, and 4 mM) on antioxidant capacity and phenolic metabolism, among other biochemical parameters, were studied in okra leaves. The results showed that SA treatments markedly increase the levels of endogenous free SA and trigger the accumulation of chlorophylls, soluble proteins, proline, antioxidant capacity, and phenolic compounds, alongside the stimulation of the enzymatic activities of phenylalanine ammonia-lyase and peroxidase, with these changes being paralleled by decreased levels of lipid peroxidation. The beneficial effects of SA treatments were also tested on field-grown okra plants. Results revealed that yield-associated agronomic attributes significantly increased upon SA treatments, especially at 2 mM SA. Altogether, these results point to a connection between SA-induced antioxidant system strengthening and crop growth and productivity. Therefore, foliar application of SA seems to be a potent and workable approach to enhance okra crop quality and yield.

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 Elma Bitkisi (Malus domestica L.)’nde Foliar Uygulanan Salisilik Asitin Donmaya Karşı Etkileri

2015 ◽  
Vol 3 (5) ◽  
pp. 221 ◽  
Author(s):  
Bengü Türkyılmaz Ünal ◽  
Oğuzhan Mentiş ◽  
Ethem Akyol
Keyword(s):  
Superoxide Dismutase ◽  
Salicylic Acid ◽  
Malus Domestica ◽  
Foliar Application ◽  
Photosynthetic Pigment ◽  
Freezing Stress ◽  
Control Group ◽  
Yield And Quality ◽  
Physiological And Biochemical

In our study we aim to increase frost resistance and improve the yield and quality of apple is important in Turkey and world economy. Phenological and morphological observations, physiological and biochemical analyzes were carried out in apple (Malus domestica L.) plants. It was studied to determine the effects of foliar Salicylic acid (0, 500 ppm/plant and 1000 ppm/plant) on adaptation of this plant when exposed to freezing stress, the quality and yield. Leaf photosynthetic pigment contents, total protein amount, proline amount, superoxide dismutase and peroxidase enzymatic activities were measured. The study planned by random experimental design and statistical analysis of data with SPSS program (LSD test) were made. It was determined that fruit and shoot numbers were increased in samples exposed to 500 ppm salicylic acid and while fruit weights were increased in samples exposed to 500 ppm and 1000 ppm salicylic acid compared to the control. Also, colour of plants were darkened. Chla, chlb, total chl, proline, superoxide dismutase and peroxidase amounts were increased significantly compared to the control group. Increases occured in the carotenoid and the protein amounts are not significant statistically. In the light of obtained data, foliar application of salicylic acid were found to reduce the effects of freezing stress and to increase the yield and quality of apple plants.

scholarly journals Genome editing for plant disease resistance: applications and perspectives

2019 ◽  
Vol 374 (1767) ◽  
pp. 20180322 ◽  
Author(s):  
Kangquan Yin ◽  
Jin-Long Qiu
Keyword(s):  
Disease Resistance ◽  
Genome Editing ◽  
Plant Disease Resistance ◽  
Genetic Improvement ◽  
Plant Disease ◽  
Resistance Breeding ◽  
Global Food Security ◽  
Yield And Quality ◽  
Genome Modifications ◽  
Global Food

Diseases severely affect crop yield and quality, thereby threatening global food security. Genetic improvement of plant disease resistance is essential for sustainable agriculture. Genome editing has been revolutionizing plant biology and biotechnology by enabling precise, targeted genome modifications. Editing provides new methods for genetic improvement of plant disease resistance and accelerates resistance breeding. Here, we first summarize the challenges for breeding resistant crops. Next, we focus on applications of genome editing technology in generating plants with resistance to bacterial, fungal and viral diseases. Finally, we discuss the potential of genome editing for breeding crops that present novel disease resistance in the future. This article is part of the theme issue ‘Biotic signalling sheds light on smart pest management’.

Nitrogen-doped carbon dots alleviate the damage from tomato bacterial wilt syndrome: systemic acquired resistance activation and reactive oxygen species scavenging

2021 ◽  
Author(s):  
Xing Luo ◽  
Xuesong Cao ◽  
Chuanxi Wang ◽  
Le Yue ◽  
Xiaofei Chen ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Plant Disease ◽  
Systemic Acquired Resistance ◽  
Foliar Application ◽  
Acquired Resistance ◽  
Global Food Security ◽  
Nitrogen Doped ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon ◽  
Global Food

Plant disease seriously threatens the global food security. However, an effective and sustainable control strategy is lacking. In this study, foliar application with 10 mg/L nitrogen doped carbon dots (N-CDs)...

scholarly journals A Contribution of Beef to Human Health: A Review of the Role of the Animal Production Systems

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Dario Pighin ◽  
Adriana Pazos ◽  
Verónica Chamorro ◽  
Fernanda Paschetta ◽  
Sebastián Cunzolo ◽  
...  
Keyword(s):  
Human Health ◽  
Production Systems ◽  
Negative Impact ◽  
Meat Products ◽  
Global Food Security ◽  
Beneficial Effects ◽  
Health Quality ◽  
Negative Impacts ◽  
Global Food

Meat and meat products constitute important source of protein, fat, and several functional compounds. Although beef consumption may implicate possible negative impacts on human health, its consumption can also contribute to human health. Quality traits of beef, as well as its nutritional properties, depend on animal genetics, feeding, livestock practices, andpost mortemprocedures. Available data show that emerging beef production systems are able to improve both, quality and nutritional traits of beef in a sustainable way. In this context, Argentina’s actions are aimed at maximising beef beneficial effects and minimising its negative impact on human health, in a way of contributing to global food security.

scholarly journals Yield and quality of two sugar beet (Beta vulgaris L. ssp. vulgaris var. altissima Döll) cultivars are influenced by foliar application of salicylic acid, irrigation timing, and planting density

2020 ◽  
Vol 115 (2) ◽  
pp. 273
Author(s):  
Khaled A.A. ABDELAAL ◽  
Sahar H. RASHED ◽  
Adel RAGAB ◽  
Akbar HOSSAIN ◽  
Ayman EL Sabagh
Keyword(s):  
Salicylic Acid ◽  
Sugar Beet ◽  
Field Experiments ◽  
Foliar Application ◽  
Irrigation Scheduling ◽  
Sugar Yield ◽  
Fresh Mass ◽  
Soluble Solids ◽  
Planting Density ◽  
Yield And Quality

<p class="yiv0945129372msonormal">Two field experiments were conducted to evaluate the time of foliar application of 100 ppm salicylic acid (SA), two irrigation (IR) timings, three levels of spacing (SP) hill-1 with different plant density on growth, yield and quality characters of two sugar beet cultivars (‘Samba’ and ‘Farida’). The results revealed that the foliar application of 100 ppm SA at 30 days after planting (DAP) and 14 days after the first application significantly influenced top fresh mass and root biomass of sugar beet plants. Conversely, the increasing period between planting and first irrigation scheduling led to significant differences in fresh mass, sugar yield, and sucrose % as well as purity % of sugar beet. Plants density with 60 × 20 cm spacing hill-1 was found to be better than the other two spacings for major characters, particularly root fresh mass, and Total soluble solids and purity %. Inversely, spacing at 60 × 15 cm, between hills gave the maximum levels of top fresh mass, root yield and sugar yield in the first season. The interaction effect between spacing hill-1 at 60 × 20 cm and 100 ppm SA applied at 30 DAP gave the maximum levels of increment for most of the studied characters, particularly for cultivar ‘Farida’.<strong></strong></p>

scholarly journals Nutrient and PGR Based Foliar Feeding for Yield Maximization in Pulses: A Review

2020 ◽  
Author(s):  
A.P. Pooja ◽  
M. Ameena
Keyword(s):  
Vascular System ◽  
Foliar Application ◽  
Growth Stages ◽  
Human Diet ◽  
Global Food Security ◽  
Soil Nutrition ◽  
Source Sink ◽  
Yield Maximization ◽  
Immense Potential ◽  
Global Food

Pulses are the cheapest and pioneer source of protein for human diet. They have immense potential in improving human health, conserving soil, protecting the environment and contributing to global food security. However, productivity of pulses is lower compared to cereals. Application of nutrients via foliage, in addition to recommended dose of fertilizers (RDF) and plant growth regulators (PGRs) at critical growth stages is a unique and easy way to increase the pulse productivity by curbing the barriers encountered during flowering and pod setting. Nutrients applied via foliage will be absorbed and translocated into the vascular system and made available for plant metabolism. The commonly used fertilizers for foliar application are urea, DAP, K2SO4 and micronutrient mixtures. Foliar application of PGRs can modify the source-sink relationship by stimulating the photo-assimilate translocation leading higher productivity. PGRs like NAA, IBA, salicylic acid, brassinosteriods etc. are effective for foliar application. Providing nutrients as wells as PGRs are known to enhance the yield by 15-25% compared to soil nutrition alone. 

scholarly journals Improvement in Growth, Yield, and Fruit Quality of Three Red Sweet Pepper Cultivars by Foliar Application of Humic and Salicylic Acids

2019 ◽  
Vol 29 (2) ◽  
pp. 170-178 ◽  
Author(s):  
Abdullah Ibrahim ◽  
Hesham Abdel-Razzak ◽  
Mahmoud Wahb-Allah ◽  
Mekhled Alenazi ◽  
Abdullah Alsadon ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Fruit Quality ◽  
Acid Treatment ◽  
Foliar Application ◽  
Growth Yield ◽  
Sweet Pepper ◽  
Fruit Yield ◽  
Yield And Quality ◽  
Salicylic Acids

The present study reports on the effect of humic and salicylic acids on the growth, yield, and fruit quality of three red sweet pepper (Capsicum annuum) cultivars: Barbero, Ferrari, and Imperio. The plants were grown in a greenhouse and the leaves were treated with humic or salicylic acids at 0, 0.5, 1.0, and 1.5 g·L−1 at 20, 40, and 60 days after transplanting. Foliar application of humic or salicylic acids significantly increased vegetative growth, fruit yield, and quality of the three cultivars as compared with the control plants. However, salicylic acid treatment proved more effective than humic acid treatment. Red sweet pepper plants of all three cultivars sprayed with 1.5 g·L−1 salicylic acid showed the greatest vegetative growth; fruit yield components, such as fruit number, diameter, and fresh and dry weights; and fruit quality traits, such as vitamin C content, total soluble solid content, titratable acidity, and total sugar content, than the plants in all other treatments. There were significant differences (P ≤ 0.05) among cultivars in response to humic and salicylic acid foliar application; ‘Ferrari’ showed significantly higher yield and productivity than ‘Barbero’ or ‘Imperio’. ‘Ferrari’ plants sprayed with 1.5 g·L−1 salicylic acid showed the highest fruit weight (202.41 g) and flesh thickness (68 mm), both of which are preferred by consumers, and therefore, have increased market value. This treatment also increased total yield by 27.7% (16.03 t·ha−1), 15.9% (12.38 t·ha−1), and 17.9% (11.88 t·ha−1) in ‘Barbero’, ‘Ferrari’, and ‘Imperio’, respectively. Therefore, salicylic acid foliar application is recommended for enhancing fruit yield and quality of greenhouse-grown red sweet pepper.

scholarly journals Micronutrient and Redox Homeostasis Contribute to Moringa Oleifera-regulated Drought Tolerance in Wheat

2021 ◽  
Author(s):  
Sahana Basu ◽  
Amlan A. Prabhakar ◽  
Surbhi Kumari ◽  
Aabha Ranjan ◽  
Ravi Ranjan Kumar ◽  
...  
Keyword(s):  
Drought Stress ◽  
Drought Tolerance ◽  
Foliar Application ◽  
Redox Homeostasis ◽  
Limiting Factor ◽  
Antioxidant Enzyme Activities ◽  
Essential Requirement ◽  
Global Food Security ◽  
Global Food

Abstract Global food security is being severely affected by rapid increase in population and drastic climate change. With the changing climate, drought stress has become the most important limiting factor for sustainable production of several important agricultural crops, including wheat. Gradual rise in temperature and reduced precipitations are likely to cause frequent onset of droughts around the world. Therefore, alleviation of drought stress in crop plants has become an essential requirement to meet the increasing food demand. The present study explored the role of foliar application of Moringa leaf extract (MLE) in conferring drought tolerance in wheat during the anthesis stage. The results showed that MLE treatment improved the concentration of the macro- (K, Ca) and micronutrients (Cu, Fe, Na, Mn, Zn, Si) in flag-leaves of wheat under non-stressed conditions and also maintained their concentrations under drought stress. The micro-nutrients (Cu, Fe, Mn, Zn) being the co-factors of the enzymes also stimulated the antioxidant enzyme activities, eventually leading to significant reduction in the reactive oxygen species (ROS) and malondialdehyde (MDA) accumulations under drought stress. Furthermore, micronutrients played a crucial role in osmoregulation and sustainable plant growth under drought stress. Overall, the study provided insights into the functional role of micronutrients in improving drought tolerance and also indicated the potential to commercialize MLE as an effective bio-stimulant for sustainable agriculture in drought prone regions.

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