scholarly journals Interactive Effects of Drought Stress and Phytohormones or Polyamines on Growth and Yield of Two M(<i>Zea maize</i> L) Genotypes

2011 ◽  
Vol 02 (06) ◽  
pp. 790-807 ◽  
Author(s):  
M. A. K. Shaddad ◽  
M. Hamdia Abd El-Samad ◽  
H. T. Mohammed
Keyword(s):  
Drought Stress ◽  
Interactive Effects ◽  
Growth And Yield ◽  
Effects Of Drought

scholarly journals Effects of drought stress on growth and yield of barley

Agronomie ◽  
2005 ◽  
Vol 25 (1) ◽  
pp. 145-149 ◽  
Author(s):  
Nezar H. Samarah
Keyword(s):  
Drought Stress ◽  
Growth And Yield ◽  
Effects Of Drought

Mitigation of drought stress by foliar application of salicylic acid and potassium in mungbean (Vigna radiata L.)

2016 ◽  
Vol 39 (2) ◽  
Author(s):  
Sadia Majeed ◽  
Muhammad Akram ◽  
Muhammad Latif ◽  
Muhammad Ijaz ◽  
Mubshar Hussain
Keyword(s):  
Salicylic Acid ◽  
Drought Stress ◽  
Adverse Effects ◽  
Vigna Radiata ◽  
Foliar Application ◽  
Growth And Yield ◽  
Flowering Stage ◽  
Stress Control ◽  
Formation Stage ◽  
Effects Of Drought

An experiment was conducted to investigate the mitigation of drought stress by foliar application of salicylic acid and potassium in mung bean. Treatments comprised of three drought stress (control, drought stress at flowering stage and drought stress at flowering and pod formation stages) and foliar application salicylic acid (100 ppm) alone and in combination with potassium (1%). Irrigation missing at flowering stage, affected less the growth and yield as compared with irrigation missing at both flowering and pod formation stage. Exogenous application of salicylic acid and potassium could mitigate the adverse effects of drought stress significantly.

scholarly journals Conservation tillage improves productivity of sunflower (Helianthus annuus L.) under reduced irrigation on sandy loam soil

PLoS ONE ◽  
2021 ◽  
Vol 16 (12) ◽  
pp. e0260673
Author(s):  
Ahmad Sher ◽  
Muhammad Yasir Arfat ◽  
Sami Ul-Allah ◽  
Abdul Sattar ◽  
Muhammad Ijaz ◽  
...  
Keyword(s):  
Drought Stress ◽  
Sandy Loam ◽  
Conservation Tillage ◽  
Interactive Effects ◽  
Growth And Yield ◽  
Soil Productivity ◽  
Management Problem ◽  
Tillage Practices ◽  
Moisture Availability ◽  
Sunflower Production

Sunflower production is significantly lower in arid and semi-arid regions due to various crop management problem. Conservation of tillage provides the most excellent opportunity to reduce degradation of soil reserves and increase soil productivity. The main objective of this study was to investigate the combined effects of conservation tillage and drought stress on growth and productivity of different sunflower hybrids. Experimental treatments included two sunflower hybrids (‘NK-Senji’ and ‘S-278’), two drought stress treatments (i.e., well-watered and drought stress at flowering and grain filling stages) and three tillage practices (i.e., conservation, minimum and deep tillage). The results indicated that morphological and physiological parameters, and yield-related traits were significantly (P≤0.05) affected by all individual factors; however, their interactive effects were non-significant. Among sunflower hybrids, ‘NK-Senji’ performed better for morphological, physiological, and yield-related traits than ‘S-278’. Similarly, conservation tillage observed better traits compared to the rest of the tillage practices included in the study. Nonetheless, conservation tillage improved growth and yield-related traits of hybrid ‘NK-Senji’ under drought stress. Hence, it is concluded that conservation tillage can improve the productivity of sunflower under low moisture availability. Therefore, conservation tillage could be suggested in the areas of lower water ability to improve sunflower production. Nonetheless, sunflower hybrids or varieties need thorough testing for their adaptability to conservation tillage and low moisture availability before making recommendations.

scholarly journals Interactive effects of drought stress and chitosan application on physiological characteristics and essential oil yield of Thymus daenensis Celak

2017 ◽  
Vol 5 (5) ◽  
pp. 407-415 ◽  
Author(s):  
Zohreh Emami Bistgani ◽  
Seyed Ataollah Siadat ◽  
Abdolmehdi Bakhshandeh ◽  
Abdollah Ghasemi Pirbalouti ◽  
Masoud Hashemi
Keyword(s):  
Drought Stress ◽  
Essential Oil ◽  
Physiological Characteristics ◽  
Interactive Effects ◽  
Oil Yield ◽  
Effects Of Drought ◽  
Essential Oil Yield

scholarly journals Plant Growth Promoting Rhizobacterial Mitigation of Drought Stress in Crop Plants: Implications for Sustainable Agriculture

Agronomy ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 712 ◽  
Author(s):  
Omena Ojuederie ◽  
Oluwaseyi Olanrewaju ◽  
Olubukola Babalola
Keyword(s):  
Drought Stress ◽  
Plant Growth ◽  
Acc Deaminase ◽  
Plant Growth Promoting Rhizobacteria ◽  
Crop Growth ◽  
Growth And Yield ◽  
Growth Enhancement ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Effects Of Drought

Abiotic stresses arising from climate change negates crop growth and yield, leading to food insecurity. Drought causes oxidative stress on plants, arising from excessive production of reactive oxygen species (ROS) due to inadequate CO2, which disrupts the photosynthetic machinery of plants. The use of conventional methods for the development of drought-tolerant crops is time-consuming, and the full adoption of modern biotechnology for crop enhancement is still regarded with prudence. Plant growth-promoting rhizobacteria (PGPR) could be used as an inexpensive and environmentally friendly approach for enhancing crop growth under environmental stress. The various direct and indirect mechanisms used for plant growth enhancement by PGPR were discussed. Synthesis of 1-aminocyclopropane−1-carboxylate (ACC) deaminase enhances plant nutrient uptake by breaking down plant ACC, thereby preventing ethylene accumulation, and enable plants to tolerate water stress. The exopolysaccharides produced also improves the ability of the soil to withhold water. PGPR enhances osmolyte production, which is effective in reducing the detrimental effects of ROS. Multifaceted PGPRs are potential candidates for biofertilizer production to lessen the detrimental effects of drought stress on crops cultivated in arid regions. This review proffered ways of augmenting their efficacy as bio-inoculants under field conditions and highlighted future prospects for sustainable agricultural productivity.

scholarly journals Enhancement of Drought Tolerance in Patchouli (Pogostemon cablin, Benth) by Modifying Micro Climate and Frequency of Fertilization

2020 ◽  
Author(s):  
Nasruddin . ◽  
Erwin Masrul Harahap ◽  
Chairani Hanum ◽  
Luthfi Aziz Mahmud Siregar
Keyword(s):  
Drought Stress ◽  
Rice Straw ◽  
Block Design ◽  
Fertilizer Application ◽  
Growth And Yield ◽  
Plastic Mulch ◽  
Significant Deterioration ◽  
Straw Mulch ◽  
Randomized Block Design ◽  
Effects Of Drought

Drought stress is one of abiotic stresses and has caused a significant deterioration in growth and yield of patchouli. This research was conducted in Reuleut Timu Village, Muara Batu District, Aceh Utara Regency, from July to December 2016, using split plot design in a Randomized Block Design with three replications. The main plot was mulch treatments (without mulch, rice straw mulch and black silver plastic mulch). The subplots were treated with different frequency of fertilizer application (once, twice and three times). The results revealed that the application of rice straw mulch has reduced the effects of drought stress, suppressed the soil temperature fluctuations, maintained soil moisture, which resulted in an increase of patchouli growth. Different frequency of fertilizer application did improve the oil yield, proline accumulation and drought resistance.

Divergences in hydraulic conductance and anatomical traits of stems and leaves in three temperate tree species coping with drought, N addition and their interactions

2019 ◽  
Vol 40 (2) ◽  
pp. 230-244 ◽  
Author(s):  
Hongxia Zhang ◽  
Nate G McDowell ◽  
Henry D Adams ◽  
Anzhi Wang ◽  
Jiabing Wu ◽  
...  
Keyword(s):  
Drought Stress ◽  
Tree Species ◽  
Specific Conductivity ◽  
Vessel Diameter ◽  
Hydraulic Conductance ◽  
Interactive Effects ◽  
N Availability ◽  
N Addition ◽  
Tilia Amurensis ◽  
Effects Of Drought

Abstract Drought and nitrogen (N) addition have been shown to affect tree hydraulic traits, but few studies have been made on their interactions across species with different wood types or leaf forms. We examined the responses of hydraulic conductance and xylem anatomical traits of Quercus mongolica (ring porous with simple leaves), Fraxinus mandshurica (ring porous with compound leaves) and Tilia amurensis (diffuse porous with simple leaves) to drought, N addition and their interactions. Drought stress decreased current-year xylem-specific conductivity in stems (Ksx) and leaf hydraulic conductance (Kleaf ), but N addition affected Ksx and Kleaf differently among species and watering regimes. These divergent effects were associated with different responses of anatomical traits and leaf forms. Higher mean vessel diameter in stems and lower vessel density in leaves were observed with N addition. The three-way interactive effects of drought, N addition and tree species were significant for most values of anatomical traits. These results were also reflected in large differences in vessel diameter and density among species with different wood types or leaf forms. The two-way interactive effects of drought and N addition were significant on Kleaf and predawn water potential, but not Ksx, indicating that leaves were more sensitive than stems to a combination of drought stress and N addition. Our results provide mechanistic insight into the variable responses of xylem water transport to the interactions of drought and N availability.

Effects of drought stress on growth, photosynthesis and alkaloid accumulation of Lycoris aurea

2020 ◽  
Vol 52 (4) ◽  
Author(s):  
Juan Liang ◽  
Miaohua Quan ◽  
Chaowen She ◽  
Anna He ◽  
Xiaoliang Xiang ◽  
...  
Keyword(s):  
Drought Stress ◽  
Lycoris Aurea ◽  
Effects Of Drought
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