Moderate Stress Research Articles

Gambaran Tingkat Stres Akademik pada Mahasiswa Keperawatan STIKES Pasapua Ambon Tahun 2024

Academic stress is a common issue faced by students, particularly those in demanding programs such as nursing. This study aims to describe the level of academic stress among students at STIKES Pasapua Ambon. The researcher employed a descriptive quantitative method. The sample in this study consisted of 76 individuals. Data were collected by distributing questionnaires or surveys online using Google Forms. Data were analyzed using univariate analysis to provide a descriptive overview The results showed that the majority of respondents were female (68.4%), aged 17-19 years (46.1%), living in dormitories (36.1%), and from outside Ambon Island (68.4%), with academic stress levels falling in the moderate category (48.7%). Given the moderate academic stress experienced by many students, it is important to raise awareness about the importance of mental well-being.

Psychosocial Correlates of Emotional Eating Among Healthcare Professionals in a Tertiary Care Centre in Mysuru

Abstract Introduction: People’s food preferences and eating habits are heavily influenced by their psychological health. Emotional eating (EE) is not a distinct eating disorder, but rather a subtype within a range of different eating behaviors that are affected by habits, stress, emotions, and personal eating attitudes. Stress and eating are frequently unhealthy companions for those in the medical field. This study proposes to determine the prevalence and psychosocial correlates with EE among health-care professionals. Materials and Methods: A cross-sectional study was done among 320 health-care professionals at JSS Hospital, Mysore, over 6 months using a convenient sampling technique. A pretested, semistructured self-administered questionnaire was used to collect information regarding sociodemographic characteristics, perceived stress (Perceived Stress Scale), EE (Emotional Eaters Questionnaire), and eating and lifestyle habits of participants. Statistical tests such as Chi-square tests and Spearman’s correlation test were used. Results: Among 320 health-care professionals, 82.8% were emotional eaters. Among emotional eaters, 28.8%, 42.5%, and 11.5% were low, emotional, and very emotional eaters, respectively. Among the study subjects, 77.19% had moderate stress and 13.12% had severe stress. There was a statistically significant association between age, perceived stress, and fried food intake with EE. Conclusion: The findings raise concerns over the high prevalence of EE among health-care professionals, calling for close attention from policymakers to address this new health challenge. Enhancing dietary habits, body weight status, exercise, and perceived stress levels could be potential targets for interventions.

Interactive effects of mycorrhizal, Azospirillum and nitrogen+phosphorus with limited irrigation on yield and morpho-physiological traits of evening primrose (Oenothera biennis L.) in arid and semi-arid regions

Evening primrose (Oenothera biennis L.) is a valuable medicinal plant known for its oil, which is rich in gamma-linolenic acid. However, the productivity and quality of evening primrose can be significantly affected by drought stress, a common challenge in arid and semi-arid regions. Water deficit stress not only limits plant growth and development but also affects physiological and biochemical processes. To mitigate the adverse effects of drought, the use of chemical and biological fertilizers has been explored. Mycorrhizal fungi and Azospirillum are known for their ability to enhance plant resilience to abiotic stresses, including drought, by improving nutrient uptake and promoting plant growth. Nitrogen and phosphorus (N+P) are essential nutrients that play crucial roles in plant metabolism and stress tolerance. This study aimed to assess the impact of mycorrhizal fungi, Azospirillum, and N+P on evening primrose under drought conditions. One experiment was conducted in two locations, Tehran (semi-arid) and Varamin (arid) in 2014 and 2015, using a greenhouse for growing plants and through field transplantation. Using a split factorial design within a randomized complete block layout, three irrigation regimes (50 %, 40 %, and 30 % of field capacity) constituted the main plots, while the subplots included three chemical fertilizer treatments (none, 50 %, and 100 % of N+P) and four biological fertilizer treatments (non-inoculated and inoculated with mycorrhizal fungi and Azospirillum) in factorial combinations. The study revealed that drought, both moderate and severe, resulted in reduced plant height, shoot dry weight, leaf area index, seed yield, harvest index, phosphorus content, relative water content, and oil yield. Notably, the highest water use efficiency occurred under moderate water deficit stress. Severe water deficit stress, however, led to the highest root dry weight, root ratio to shoot dry weight, and catalase activity. The application of chemical and biological fertilizers alleviated the negative effects of water deficit stress on plant growth and yield. Evening primrose water use efficiency increased under moderate water deficit stress, particularly when coupled with the application of chemical (N+P) and biological (mycorrhizal fungi and Azospirillum) fertilizers. The study emphasized the positive impact of mycorrhizal and Azospirillum inoculation on enhancing evening primrose growth under water deficit stress.

The measured healthy lifestyle habits among Saudi university females in Medina, Saudi Arabia: A cross-sectional study.

Lifestyle plays a crucial role in shaping an individual's health outcomes, we aim to calculate the prevalence of lifestyle habits among female populations in the College of Medicine, Taibah University including poor dietary habits, lack of physical activity (PA), poor coping with stress, and impaired sleep patterns and to find factors that are correlated to them. A cross-sectional study was conducted among Saudi females at the College of Medicine, Taibah University, from January 1 to June 1, 2023. Data were collected through interviewing them using validated questionnaires assessing 5 different lifestyle domains. Statistical analysis was performed using Statistical Package for the Social Sciences version 21.0. A total of 263 cases were interviewed. The mean age was 22 ± 8.4 years old. The average sleep quality measured by the Pittsburgh Sleep Quality Index of 2.6 ± 1.1, suggesting relative difficulty in sleep quality. A total of 68.6% participated in moderate PA. Dietary habits indicated a high prevalence of consumption of sweets, and fast meals, alongside low intake of fruits and vegetables. Emotional well-being, as assessed by the World Health Organization-5 questionnaire, yielded an average score of 7.8 ± 5.7, 58.9% moderate stress, and 8% high perceived stress. Adequate sleep quality is crucial for well-being, necessitating lifestyle modifications, particularly weight management, to address sleep disorders. Varied PA levels (46% meeting recommendations) highlight the need for standardized guidelines and tailored interventions. The high prevalence of unhealthy dietary habits underscores the importance of targeted nutritional interventions. Stress prevalence (40%) emphasizes the need for individualized stress management strategies.

Caregiver burden and risk of epithelial ovarian cancer in the Nurses' Health Studies.

Psychosocial stress may increase ovarian cancer risk and accelerate disease progression. We examined the association between caregiver burden, a common stressor, and risk of epithelial ovarian cancer. We prospectively followed 67,724 women in the Nurses' Health Study (NHS; 1992-2012) and 70,720 women in the NHSII (2001-2009) who answered questions on informal caregiving (i.e., caregiving outside of work). Women who reported no informal caregiving were considered non-caregivers while, among women who provided care outside of work, caregiver burden was categorized by time spent caregiving and perceived stress from caregiving. For the 34% of women who provided informal care for ≥15 hours per week, 42% described caregiving as moderately to extremely stressful. Pooled multivariate analyses indicated no difference in ovarian cancer risk for women providing ≥15 hours of care per week compared to non-caregivers (hazard ratio (HR)=0.96; 95% confidence interval (CI): 0.79-1.18), and no association was evident for women who reported moderate or extreme stress from caregiving compared to non-caregivers (HR=0.96; 95% CI: 0.75-1.22). Together with prior work evaluating job strain and ovarian cancer risk, our findings suggest that, when evaluating a stressor's role in cancer risk, it is critical to consider how the stressor contributes to the overall experience of distress.

Predictors of COVID-Related stress in a community sample in Turkey: a cross-sectional study

ABSTRACT The distinctive mental health features associated with COVID-19 have gained importance as the psychological effects of the pandemic on the community become more visible. This study aims to assess the COVID-related stress status and associated factors in the community sample of Turkey. The sample of this cross-sectional study is composed of 2.065 people between the ages of 18–90. Data were collected through an online survey prepared by Google.docs between October-December, 2020. Mild to moderate stress was found in the community with the most common symptoms of the fear of contamination and danger. Some variables, such as being female and the severity of COVID-19 illness, were associated with higher COVID-related stress. Vulnerable groups associated with high stress should be monitored during the pandemic. The findings of this study will guide the practices of professionals working in the field of public health, healthcare, or mental health in possible future pandemics.

The Effect of Stress on the Occurance of Dysmenorrhea

Adolescence is a period of “storm and stress”, a time when emotional tension increases due to physical and glandular changes that make adolescents very sensitive and prone to stress. Stress management is also one of the efforts to overcome dysmenorrhea because stress factors can reduce a person's pain resistance. This study aims to determine the effect of stress on the incidence of dysmenorrhea. This study was an observational analytic study using a cross-sectional approach. The study population was seventh and eighth grade students of Junior High School Ngariboyo, totaling 179 female students. Sampling using the Slovin sample size formula, samples were taken using simple random sampling technique with a minimum sample size of 124 female students. The independent variable was stress, while the dependent variable was dysmenorrhea. Data were collected using the Depression Anxiety Stress Scale (DASS-42) questionnaire, and the Numerical Rating Scale (NRS). Data were processed and analyzed using Ordinal Regression test. The results showed that there were 49 female students who had moderate stress and 53 female students who experienced moderate dysmenorrhea pain. The results of the Ordinal Regression test showed the effect of stress on the occurance of dysmenorrhea p-value = 0.017. Based on the description above, it can be concluded that there is a significant influence between stress and the incidence of dysmenorrhea in seventh and eighth grade students of Junior High School Ngariboyo. It is expected that female students can increase their knowledge in managing themselves early on in stress management towards the occurance of dysmenorrhea.

Clostridioides difficile superoxide reductase mitigates oxygen sensitivity.

Clostridioides difficile causes a serious diarrheal disease and is a common healthcare-associated bacterial pathogen. Although it has a major impact on human health, the mechanistic details of C. difficile intestinal colonization remain undefined. C. difficile is highly sensitive to oxygen and requires anaerobic conditions for in vitro growth. However, the mammalian gut is not devoid of oxygen, and C. difficile tolerates moderate oxidative stress in vivo. The C. difficile genome encodes several antioxidant proteins, including a predicted superoxide reductase (SOR) that is upregulated upon exposure to antimicrobial peptides. The goal of this study was to establish SOR enzymatic activity and assess its role in protecting C. difficile against oxygen exposure. Insertional inactivation of sor rendered C. difficile more sensitive to superoxide, indicating that SOR contributes to antioxidant defense. Heterologous C. difficile sor expression in Escherichia coli conferred protection against superoxide-dependent growth inhibition, and the corresponding cell lysates showed superoxide scavenging activity. Finally, a C. difficile SOR mutant exhibited global proteome changes under oxygen stress when compared to the parent strain. Collectively, our data establish the enzymatic activity of C. difficile SOR, confirm its role in protection against oxidative stress, and demonstrate SOR's broader impacts on the C. difficile vegetative cell proteome.IMPORTANCEClostridioides difficile is an important pathogen strongly associated with healthcare settings and capable of causing severe diarrheal disease. While considered a strict anaerobe in vitro, C. difficile has been shown to tolerate low levels of oxygen in the mammalian host. Among other well-characterized antioxidant proteins, the C. difficile genome encodes a predicted superoxide reductase (SOR), an understudied component of antioxidant defense in pathogens. The significance of the research reported herein is the characterization of SOR's enzymatic activity, including confirmation of its role in protecting C. difficile against oxidative stress. This furthers our understanding of C. difficile pathogenesis and presents a potential new avenue for targeted therapies.

Loss of work-life balance, experience of stress and anxiety among professionals working from home - An exploratory study in a western Indian city

Introduction: Work from Home, (WFH) gained prominence during the COVID-19 pandemic because of the emphasized positives of flexibility, productivity, efficiency, and saving on commute time. However, over a period of time, experiences of stress, anxiety, and depression started to daunt the WFH employees. A study of the impact of WFH on the work performance, mental health (stress and anxiety), and lifestyle of Indian employees is necessary for the generation of evidence that would contribute to WFH policy building. Methods: The study was done online during the COVID-19 pandemic in the months of April-June 2021. A link to the Google form was posted on the author’s social media platforms, Facebook and LinkedIn. The survey researched individual work performance, perceived stress, and anxiety, lifestyle practices, and experiences of WFH. Results: Participants scored high on the dimensions of task performance and contextual performance. (65.3%) were under moderate stress, and (8.9%) were under high stress, and more than fifty percent (55.4%) were experiencing high-state anxiety. The effect of work distraction on perceived stress and state anxiety was found to be significant (p = 0.004). Also, a significant association was observed between feelings of isolation and high-state anxiety (p = 0.005) and between anxiety and stress (p = 0.000). Conclusion: Teaching and training mindfulness to WFH employees would help in coping with the stress and anxiety attached to WFH. Industries have the opportunity to conceptualize innovative and context-specific strategies to support WFH arrangements and employees’ well-being.

The lack of plasticity and interspecific variability in thermal limits produce a highly heat-tolerant tropical host-parasitoid system

Thermal limits are often used as proxies to assess the vulnerability of ectotherms to environmental change. While meta-analyses point out a relatively low plasticity of heat limits and a large interspecific variability, only few studies have compared the heat tolerance of interacting species. The present study focuses on the thermal limits, and their plasticity (heat hardening), of three species co-occurring in Western Africa: two ectoparasitoid species, Dinarmus basalis (Rondani) (Hymenoptera: Pteromalidae) and Eupelmus vuilleti (Crawford) (Hymenoptera: Eupelmidae), and their common host, Callosobruchus maculatus (F.) (Coleoptera: Bruchidae). The investigation delves into the Critical Thermal Maximum (CTmax), representing the upper tolerance limit, to understand how these species may cope with extreme thermal events. The CTmax of all three species appeared similarly high, hovering around 46.5 °C, exceeding the global mean CTmax observed in insects by 3.5 °C. Short-term exposure to moderate heat stress showed no impact on CTmax, suggesting a potential lack of heat hardening in these species. Therefore, we emphasized the similarity of heat tolerance in these interacting species, potentially stemming from both evolutionary adaptations to high temperatures during development and the stable and similar microclimate experienced by the three species over the years. While the high thermal tolerance should allow these species to endure extreme temperature events, the apparent lack of plasticity raises concerns about their ability to adapt to future climate change scenarios. Overall, this research provides valuable insights into the thermal physiology of these interacting species, providing a basis for understanding their responses to climate change and potential implications for the host-parasitoid system.

Balancing Act: Dual-Role Conflict and Job Stress in Female Healthcare Workers

This study investigates the relationship between dual-role conflict and job stress among married female nurses working at Hospital X in Magelang. The hospital's policy flexibility in the new normal era aims to enhance healthcare quality, but this also leads to job stress among nurses due to heavy workloads. Interviews with ten married nurses revealed various stress-related issues, highlighting the need for further research. The study defines job stress as the body's response to high job demands and dual-role conflict as the interference between job and family roles. A total of 90 female nurses participated in the study, with data collected via questionnaires using Likert scales. Descriptive statistics showed high levels of dual-role conflict and moderate job stress among participants. Validity and reliability tests confirmed the suitability of the measurement tools used. Pearson correlation analysis revealed no significant relationship between dual-role conflict and job stress (r = -0.073, p > 0.05). The findings suggest that while dual-role conflict levels are high, they do not significantly contribute to job stress among the nurses. Factors such as manageable role conflicts and supportive spouses may mitigate the impact. This study aligns with previous research indicating that dual-role conflict does not necessarily increase job stress among working women. Despite limitations, the study underscores the importance of considering various factors influencing job stress and suggests that other elements may play a more critical role in affecting the stress levels of female nurses at Hospital X.

Physiological performance and fruit quality of noni (Morinda citrifolia L.) cultivated in different agro-climatic zones of Fiji

Noni (Morinda citrifolia) fruit juice is widely used as a strong antioxidant nutritional supplement. With its demand for supplementary products globally, commercial noni farming is now increasing in the Pacific Islands. Information on its growth performance and fruit quality under variable climatic condition is limited. This study aimed to establish the climatic requirements and identify the agro-climatic zone in Fiji that provides for increased antioxidant levels in fruits in addition to optimal plant growth and physiological performance. The study investigated plant growth, photosynthetic performance, fruit yield and antioxidant properties of plants that were cultivated under rain fed conditions in the dry, wet and intermediate agro-climatic zones in Fiji Islands. The physiological performance was significantly influenced by the soil moisture, sunshine hours and soil nutrients. Physiological performance including fruit yields were the highest in the intermediate zone which was characterized by a moderate rainfall and fairly good soil properties while it was lowest in the dry zone. Highest fruit antioxidant properties occurred in the dry zone followed by wet zone. The study implies that under cultivation, moderate abiotic stress can enhance the antioxidant properties of noni.

Individual and psychological characteristics of medical university students with different stress resistance

The individual and psychological characteristics of 181 students with different levels of stress resistance were studied. Was revealed the dominance of the mechanisms of regression (8.77 ± 2.40 points), projection (7.03 ± 2.04 points) and rationalization (6.73 ± 1.89 points) with a lower intensity of compensation mechanisms (5.45 ± 1.68 points), denial (4.80 ± 1.71 points) and displacement (4.80 ± 2.02 points), and minimal expression of mechanisms of hypercompensation (4.42 ± 1.67 points) and substitution (4.38 ± 2.07 points). The mechanism of rationalization is more intense in students with high stress resistance, the mechanisms of regression, projection, compensation and hypercompensation — in students with moderate stress resistance, and displacement, substitution and denial — in students with weak stress resistance. The average level of resilience was found in the examinees: 25.25 ± 10.62 points, while in students with high stress resistance, the indicator corresponded to a higher than average level: 29.22 ± 6.70 points, in students with moderate stress resistance — to an average level: 24.31 ± 11.21 points, and in students with weak stress resistance — a lower than average level: 16.28 ± 12.43 points. The resilience index is inversely correlated with the stress resistance index (rS = –0.352, p = 0.001), which indicates that higher stress resistance is associated with greater resilience. The state of hardiness of medical students as a whole and of students with high and moderate stress resistance corresponds to a high level: respectively 20.10 ± 7.48 points, 23.59 ± 6.39 points and 19.37 ± 6.41 points, and in students with weak stress resistance — moderate level: 12.03 ± 6.00 points. All components of hardiness — commitment, control and challenge are most pronounced in students with high stress resistance, and least pronounced — in students with weak stress resistance. The stress resistance indicator is inversely correlated with hardiness (rS = –0.519, p = 0.000), commitment (rS = –0.464, p = 0.000), control (rS = –0.477, p = 0.000) and challenge (rS = –0.461, p = 0.000), which indicates that higher stress resistance is associated with greater hardiness. Key words: medical university students, stress resistance, psychological protection, hardiness, resilience

Comparative analysis of stress level and coping strategies due to COVID-19 pandemics among dental students in Indonesia and Vietnam

ObjectiveThis study investigated and compared the perceived stress levels and coping strategies of dental students in Indonesia and Vietnam during the COVID-19 pandemic. Materials and methodsA cross-sectional survey was conducted online in 2022 for dental students from the University of Indonesia and Can Tho University, Vietnam (n = 304). Perceived stress levels and coping strategies were assessed using a self-administered questionnaire about student sociodemographic factors, learning experiences, coping strategies, stress-related factors, and stress levels. Data were analyzed using Mann-Whitney, Kruskal Wallis, and Spearman correlation tests. ResultsThis study showed the overall mean stress level was 23.9 (SD = 5.63), with a significant difference observed between Indonesian (24.44, SD = 5.14) and Vietnamese students (23.32, SD = 6.13) (p = 0.016), indicating potential variations in stress experiences. Key findings include a correlation between living arrangements and stress, as students living independently report higher stress (23.96, SD = 6.24) compared to those living with family (23.95, SD = 5.29) (p = 0.018). Fifth-year students exhibit lower stress levels (21.17, SD = 6.12) than other grades (p = 0.026). Multiple training sessions about COVID-19 are associated with better coping strategies (9.95, SD = 0.91, p < 0.001). The study also revealed different perceptions of COVID-19 learning experiences among dental students in Indonesian and Vietnamese dental students, with significant correlations observed between stress levels, coping strategies, and specific concerns such as graduation time and COVID-19-induced changes (p < 0.05). ConclusionThis study shows students experience moderate stress levels, but the significant differences in stress experiences and coping strategies between the two countries highlighted the need for tailored approaches. Providing social support from faculty, family, friends, and peer dental students was one of the students’ strategies to cope and minimize stress levels.

Exploring the Association of Screen Time and Physical Activity with Mental Health among University Students in Peshawar

Background: The COVID-19 lockdown restricted movement and increased screen time, potentially affecting mental health. This study aimed to determine the association between screen time and physical activity with mental health in university students of Peshawar, Pakistan. Methodology: This cross-sectional survey enrolled 232 students using the convenience sampling method and were asked to fill out the questionnaires on screen time, physical activity levels (IPAQ) and mental health (DASS-2). The impact of screen time and physical activity levels on mental health was analyzed using frequencies and contingency tables (cross-tabs). Results: Among the participants, 37.90% reported experiencing depression, 40.90% anxiety, and 37.10% stress. Notably, 76% of those with mild anxiety exhibited low screen time. Furthermore, 46.7% of participants with mild stress engaged in high physical activity, and 52.6% of those with moderate stress had moderate physical activity. No significant correlations were found between depression, screen time, and physical activity. Conclusion: Significant correlations were observed between stress and physical activity, as well as anxiety and screen time. These findings underscore the importance of considering both screen time and physical activity in addressing mental health concerns among students. Keywords: Anxiety, Depression, COVID-19, Exercise, Screen Time.

A Correlational Study between the level of academic performance and the level of academic stress among Young Adults

Introduction: Stress may decrease cognitive capacities and learning in young adults , affecting academic performance. The primary aim of the research was to examine the correlation between academic stress and academic performance. Method: The samples (male 50, female 50, aged 17-23 years) were taken from different universities in India. Academic stress was measured by the (ASS) Academic stress scale and academic performance was measured by Birchmeier, C. et al., from Saginaw Valley State University (APS) Academic performance scale. The data was analysed using SPSS (version 16). Result: Research indicates a significant negative association (r = -0.60, p &lt; 0.001) between academic stress and performance, with higher stress levels resulting in decreased performance. Multiple regression analysis shows that academic stress significantly impacts academic performance (β = -0.45, p &lt; 0.001). Students with high stress performed less well academically compared to those with low or moderate stress (F (2, 97) = 12.34, p &lt; 0.001). Female students reported much greater academic stress across every dimension than male students. For AST, females (M = 46.16) had significantly higher stress levels than men (M = 35.26); t (98) = 3.75, p =.001. Conclusion: The findings indicate that students are likely to achieve higher academic performance when they experience lower levels of academic stress.

Morphological and Physiological Changes under NaCl Stress in Some Pyrus and Quince Rootstocks

In this study, the aim was to determine some morphological, physiological, and biochemical changes in non-grafted plants of OHxF 97, OHxF 333, Fox 11, and BA 29 rootstocks under NaCl stress. NaCl (0 mM, 20 mM, 40 mM, and 80 mM) was applied to the rootstocks planted in 18-liter pots with irrigation water repeated over two years. Under NaCl stress, plant height, plant diameter, and leaf area decreased in all rootstocks. Additionally, Fox 11 and BA 29 rootstocks were more adversely affected by NaCl stress to leaf necrosis. The amounts of chl a, chl b, and total chl decreased in Fox 11 rootstock with moderate and severe stress treatments. Carotenoid content in the leaves, especially under severe stress conditions, showed a decrease in Pyrus rootstocks. Under NaCl stress, the leaves of Fox 11 were rich in proline. MDA content generally increased with NaCl stress compared to the control in Fox 11 and BA 29. Although significant changes in plant nutrients were generally not observed with NaCl, a significant decrease in the amount of K+ in the leaves of Fox 11 was identified. Consequently, Fox 11 and BA 29 rootstocks exhibit sensitivity to NaCl stress, whereas OHxF rootstocks demonstrate greater tolerance.

INFLUENCE OF DROUGHT STRESS ON THE FRUIT AND YIELD QUALITY OF THREE DIFFERENT VARIETIES OF TOMATO (Lycopersicum esculentum L.)

Drought impacts various physiological processes in plants, ultimately affecting yield. The study aimed to determine the influence of drought stress on the fruit and yield quality of three different varieties of tomato namely; Rio, Dan Syria and UTC. The plants were subjected to four treatments which were subjected to 80-85% WHC (water holding capacity) (control, T1), 55-60% WHC (light drought stress, T2), 40-45% WHC (moderate drought stress, T3) and 30-35% WHC (severe drought stress, T4) and each replicated three times. The data generated were subjected to Analysis of Variance (ANOVA). According to the findings, Rio outperformed the other varieties in terms of fresh fruit weight (21.59g), fruit pericarp thickness (3.96mm) and drought tolerance index (56.17%) under severe drought conditions. However, under severe drought conditions, the highest average number of fruits (2.33) was produced by the UTC, closely followed by Dan Syria (2). The results also showed that under severe drought stress, Rio outperformed the other varieties in terms of fresh and dry weight of shoot, as well as fresh and dry weight of root (18.82g, 3.47g and 3.34g, 1.29g) closely followed by Dan Syria measuring 12.47g, 1.66g, 3.10g, and 0.62g respectively. Under conditions of severe drought stress, Rio, UTC, and Dan Syria exhibit drought tolerance indices of 56.17%, 37.49%, and 20.44% respectively. These suggest that Rio is the most resilient to drought compared to the other varieties. Therefore, farmers should consider using Rio, which has a high level of drought resistance, as a means to mitigate the impact of drought.

Effects of drought stress on the activities of some photosynthetic enzymes and gas exchange parameters in the leaves of Chenopodium album

We have studied the effects of drought stress on the activities of some enzymes of the Calvin-Benson cycle and their degree of activation in the leaves of Chenopodium album and photosynthetic gas exchange parameters. The decrease in the rate of photosynthetic CO2 assimilation under moderate drought stress initially occurs due to the partial stomatal closure and under severe drought. It is assumed that the negative effect of drought on the activities of some enzymes of the Calvin-Benson cycle may cause the weakening of photosynthesis in the leaves of Chenopodium album. Keywords: Chenopodium album, drought stress, photosynthetic enzymes, photosynthetic rate

Application of Various Concentrations of Moringa Leaf Liquid Fertilizer (Moringa oleifera L.) to Stimulate Growth and Yield of Upland Rice Under Various Drought Stresses

Upland rice is susceptible to drought stress in crops, especially on marginal lands. The use of moringa leaf liquid fertilizer as a biostimulant that is very rich in important compounds is expected to increase growth andproduction as well as plant tolerance to drought stress. This study aims to determine the appropriate concentrationof moringa leaf extract liquid fertilizer to inhibit the growth and yield of upland rice plants grown under variouslevels of drought stress. This study was arranged in the form of a 2-factor factorial experiment with randomizedcomplate block design Split plot design form. The main plot is the application of moringa leaf extract liquidfertilizer consisting of four concentration levels 0%, 5%, 10%, 15% moringa leaf liquid fertilizer. Subplots (SP)was drought stress consisting of three levels of percentage of Field Capacity, namely 100%, 75%, and 50% FC.There were 12 treatment combinations of two units in one replication, each treatment combination was repeated3 times for a total of 72 experimental units. The experiment of moringa leaf liquid fertilizer concentration gave asignificant effect on the increase of plant height, number of tillers, productive tillers, flag leaf area, number ofgrain per plant, grain weight per plant, and grain production per hectare at several levels of droughtstress.Concentration of 15% Moringa leaf liquid fertilizer gives a better effect in increasing the productivity ofupland rice with an average yield of 1507.03 tons/hectare under moderate stress (75% field capasity), and anaverage yield of 1081.66 tons/hectare under high drought stress (50% field capasity).