Greater Vigor Research Articles

Sex- and estrous-related response patterns for alcohol depend critically on the level of compulsion-like challenge

Alcohol use disorder is a substantial social and economic burden. During the last years, the number of women with drinking problems has been increasing, and one main concern is that they are particularly more vulnerable to negative consequences of alcohol. However, little is known about female-specific response patterns for alcohol, and potential underlying differences in brain mechanisms, including for compulsion-like alcohol drinking (when intake persists despite adverse consequences). We used lickometry to assess behavioral microstructure in adult Wistar male and female rats (n = 28–30) during alcohol-only drinking or moderate- or higher-challenge alcohol compulsion (10 or 60 mg/l quinine in alcohol, respectively). Estrous stages were determined and related to drinking levels and patterns of responding to alcohol, as was ovariectomy. Our findings showed that females (where we didn't determine estrus stage) had similar total licks in a session as males, but significantly longer licking bouts under alcohol-only and moderate-challenge, suggesting greater persistence. Further, greater intake under alcohol-only and moderate-challenge was related to faster licking in males, while female consumption was not related to licking speed. Thus, females could have increased persistence without greater vigor, unlike males. However, under higher-challenge, faster licking did predict higher intake in females, similar to males. To better understand female higher-challenge responding, we examined drinking in relation to phases of the estrous cycle. Higher-challenge had longer bouts only in late diestrus. In addition, ovariectomy led to longer bouts only under higher-challenge, suggesting that conditions with reduced hormone levels could increase female persistence for alcohol under higher-challenge. However, ovariectomy also reduced alcohol-only and moderate-challenge drinking but did not reduce bout length. Thus, intake level and response strategy could be regulated somewhat differently by ovarian hormones. Finally, moderate-challenge licking speed was less variable during early diestrus, and we previously showed more stereotyped responding specifically under moderate-challenge in males. By combining behavioral microstructure and sex- and estrus-related changes in drinking patterns, our results suggest that females have greater persistence for alcohol under lower-challenge drinking, while late diestrus and ovariectomy unmasked greater persistence under higher-challenge. Together, our novel insights could help develop more effective and personalized treatments for problematic alcohol use.

Corn seeds of different sizes under drying methods and storage periods

The seed is the main input in the production process of the corn crop, and the drying process is crucial for maintaining the physiological quality and longevity of the seeds. Thus, the present study aimed to evaluate the physiological potential of hybrid corn seeds retained in different sieves under drying methods and storage periods. The experiment was conducted with corn seeds of the hybrid Balu 280 PRO, in a completely randomized design, with eight replications of 50 seeds, in a 5 × 2 × 2 factorial scheme, with retention sieves (24 M, 22 M, 20 M, 18 M, and 20 R), drying methods (traditional drying and gas drying) and storage periods (0 and 365 days). The variables analyzed were viability and vigor, based on germination and cold tests, respectively. Data were submitted for variance analysis using the F test (p<0.05) and means were compared using the Tukey test (p<0.05). For non-stored seeds, traditional and gas drying methods are independent for maintaining the viability and vigor of corn seeds. For seeds under 1 year of storage, the traditional drying method is better than gas drying to maintain the physiological quality of corn seeds, but the commercial standard is maintained in both methods. In both traditional and gas drying methods, seed storage favors the reduction of germination and vigor of corn seeds. Seeds retained on 22 M, 20 M, and 20 R sieves have greater vigor when compared to seeds retained on 18 M sieves.

INTERAÇÃO ENXERTO VS PORTA-ENXERTOS NA CULTURA DA SERINGUEIRA

The objective of the present work was to study the development of the aerial part and the root system and the nutritional situation in young rubber tree plants, selecting clones with greater vigor and desired characteristics in a rootstock, relating them to the reduction of production time of seedlings, increasing the degree of compatibility and consequently uniformity in order to know their potential for use as rootstock for commercial clones and guarantee the producer an adequate and uniform productivity during the bleeding period of his rubber plantation. The experiment was carried out at APTA Regional at Pindorama, São Paulo State, Brazil. The experiment was conducted in the nursery in plastic bags using a randomized block design with seven treatments and four replications. Each plot was composed of 120 plants, totaling 3360 useful plants. The treatments consisted of plants from the six clones PB 235, RRIM 600, GT 1, PR 261, IAN 873, Tjir 1 x Tjir 16 and unselected seeds (SNS). At 10 months all clones are ready for grafting. Clone IAN 873 presents grafting conditions at 8 months, with greater precocity compared to the others. Regarding the diameter of the stem, it can be said that the best results were respectively from the clones IAN 873, GT 1 and PB 235. That in the endosperm there was a higher concentration of zinc and copper. As for the concentration of calcium in the seed, a greater presence was observed in the shell, while the other macronutrients and total protein occurred in greater amounts in the endosperm. Within foliar nutrients, there is no significant difference between micronutrients. Keywords: Hevea Brasilienses, Genetic interactions, Clones.

Physical Activity in Forest and Psychological Health Benefits: A Field Experiment with Young Polish Adults

Recently, many studies have been conducted on the impact of various elements of the natural environment, including forests, on human physical and mental health. However, little is known about the level of health benefits resulting from contact with forests depending on the type of physical activity undertaken. Therefore, in order to measure the impact of physical activity on the level of mental relaxation, a randomized experiment was conducted, which took into account three types of human physical activity: walking, cycling, and passive (without movement) observation of the forest. The study was carried out in the same forest and at the same time. Forty young people studying in Warsaw took part in the study. Four psychological questionnaires were used in the project before and after the experiment (Profile of Mood States, Schedule of Positive and Negative Affects, Recovery Scale, Subjective Vitality Scale). A pre-test was also performed in a university classroom. Research has shown that staying in the forest, regardless of the type of physical activity, brings positive health benefits in the form of an increase in positive feelings while reducing negative feelings. The results indicate that people who walk have the broadest range of benefits (cumulative benefits), in the form of less tension, reduced anger, fatigue, depression, increased concentration and greater vigor. Cyclists experienced significant benefits only in the form of reduced depression and greater vigor. The group passively observing the forest achieved statistically significant benefits only in terms of reducing fatigue and improving concentration. However, overall, the between-group results showed no statistically significant differences between the restorative effects of walking, cycling, and viewing the forest landscape. Each analyzed form of contact with the forest has a regenerating/regenerating effect (ROS scale) and contributes to the increase in vitality (SVS scale).

Pattern and physiological quality of seeds in the selection of lima bean accessions

The landrace varieties used in breeding programs need to have well-determined and recognized phenotypic characteristics. The guarantees in terms of productivity in the next cycles go through an evaluation of the quality of the seeds. The objective of this study was to evaluate whether lima bean accessions differ in tegumental pattern and physiological seed quality and the relationship between the traits and to select the superior lima bean genotype for seed quality. Seeds of ten accessions (criole varieties) of lima bean (Phaseolus lunatus) produced in the seed multiplication field were used. The seeds were kept in plastic bottles until evaluation. A completely randomized design was used with 10 treatments (accessions) and 15 replicates (seeds) for the pattern analyses and four replicates of 50 seeds each for the germination and vigor tests. The pattern, germination and vigor of the seed lots of the breeding program depend on the accession (p < 0.05). The accessions presented seeds from small to large, with a shape varying from flat to rounded. The accessions CPCE 020, UFPI 1266 and UFPI 1294 had a satisfactory percentage of twinning, above 70%. However, the UFPI 1204 accession also had the greatest vigor. A positive correlation was observed between seed size and germination percentage, which should be considered in indirect selection within breeding programs.

From structural determination of natural products in complex mixtures to single cell resolution: Perspectives on advances and challenges for mass spectrometry

The search for new Natural Products is one of the oldest interests for research in chemistry. The history of this discipline is very prolific, from its initial uses as medicine to advanced omics strategies to understand the mechanics of biological controls in living cells. The discoveries of morphine, penicillin, taxol and many other natural products revolutionized human health. During the last 40 years, excellent reviews published by Dr. David Newman and Dr. Gordon Crag have revealed that the pharmaceutical industry’s research into natural products has lost some of its steam. Nevertheless, new natural products for antimicrobials, antifungals, and anticancer drugs remained the main alternative. Furthermore, research institutes have seen great vigor, and several startup companies have emerged worldwide, seeking therapeutic alternatives based in natural products. Innovations on spectrometric hardware, allowing broader coverage of chemical classes and spatial mapping, and in software, enabling the interpretation of large volumes of data, afforded a renewed interest in natural products and are considered the most important enabling technology for the new companies. In this perspective article we give some historical context to exciting developments, on software and spatial resolution, that promise to pave the way for a bright future of Natural Products research.

Sensing and Mapping the Effects of Cow Trampling on the Soil Compaction of the Montado Mediterranean Ecosystem

The economic and environmental sustainability of extensive livestock production systems requires the optimisation of soil management, pasture production and animal grazing. Soil compaction is generally viewed as an indicator of soil degradation processes and a determinant factor in crop productivity. In the Montado silvopastoral ecosystem, characteristic of the Iberian Peninsula, animal trampling is mentioned as a variable to consider in soil compaction. This study aims: (i) to assess the spatial variation in the compaction profile of the 0-0.30 m deep soil layer over several years; (ii) to evaluate the effect of animal trampling on soil compaction; and (iii) to demonstrate the utility of combining various technological tools for sensing and mapping indicators of soil characteristics (Cone Index, CI; and apparent electrical conductivity, ECa), of pastures' vegetative vigour (Normalised Difference Vegetation Index, NDVI) and of cows' grazing zones (Global Positioning Systems, GPS collars). The significant correlation between CI, soil moisture content (SMC) and ECa and between ECa and soil clay content shows the potential of using these expedient tools provided by the development of Precision Agriculture. The compaction resulting from animal trampling was significant outside the tree canopy (OTC) in the four evaluated dates and in the three soil layers considered (0-0.10 m; 0.10-0.20 m; 0.20-0.30 m). However, under the tree canopy (UTC), the effect of animal trampling was significant only in the 0-0.10 m soil layer and in three of the four dates, with a tendency for a greater CI at greater depths (0.10-0.30 m), in zones with a lower animal presence. These results suggest that this could be a dynamic process, with recovery cycles in the face of grazing management, seasonal fluctuations in soil moisture or spatial variation in specific soil characteristics (namely clay contents). The NDVI shows potential for monitoring the effect of livestock trampling during the peak spring production phase, with greater vigour in areas with less animal trampling. These results provide good perspectives for future studies that allow the calibration and validation of these tools to support the decision-making process of the agricultural manager.

Роль митрополита Антония Сурожского (Блума) в построении отношений РПЦ и церкви Англии в XX веке

Introduction. The article is devoted to the consideration of the role of the metropolitan Anthony Bloom of Sourozh in the development of relations between the Russian Orthodox Church and the Church of England. The personality of the metropolitan Anthony is connected with the formation of the Surozh diocese of the Russian Orthodox Church. In addition, Father Anthony assisted in the functioning of the Commonwealth of Saint Albania and Reverend Sergius, an Orthodox Anglican organization. The organization began its work in 1928. In this organization, Father Antony Bloom began his service in England in the role of spiritual director. Materials and Methods. Important sources for this article were the writings of Antony Bloom himself, where he describes the pages of his biography, tells about his work in England. In addition, information from publicist literature was also used. An important source was information from the website of the Foundation for the Spiritual Heritage of the Metropolitan Anthony Surozhsky. It contains memoirs of contemporaries and Bloom's own articles. It is also important to note the works of N.M. Zernov, a Russian emigrant, one of the initiators of the Commonwealth of St Albans and Reverend Sergius. N.M. Zernov invited Fr Anthony to England to conduct the work of the Commonwealth. N.M. Zernov together with his wife in the journal "Sobornost" left a series of his memoirs about the activities of the organization. In these memoirs there is a reference to the role of Antony Bloom in the development of relations between the Russian Orthodox Church and the Church of England in the 20th century. Results. The author concludes that Father Anthony Bloom conducted active missionary work among English society. This allowed to increase the number of Orthodox believers in England. During the period of Antony Bloom's ministry, new parishes of the Russian Orthodox Church were opened in Great Britain. Father Anthony assisted in the activities of the Commonwealth of St Albans and Reverend Sergius. Conclusion. In the twentieth century there were a number of events that affected the decline in co-operation between the ROC and the Church of England. However, thanks to individual representatives of the Russian emigration, the relationship between the ROC and the Church of England not only survived, but continued to develop with greater vigour. To a greater extent this result is due to the personality of Metropolitan Anthony Surozhsky Bloom. He conducted work with believers and was engaged in explaining the fundamentals of the Orthodox faith on radio and television. This great work contributed to the development of dialogue between the Orthodox and Anglicans. Anthony Bloom was a participant in important events in the history of the dialogue between Orthodox and Anglicans in the second half of the 20th century.

ASPECTS REGARDING VARIETY/ROOTSTOCK RELATIONSHIP IN SOME SPECIES OF FRUIT SPECIES

Obtaining large and quality productions requires, in addition to agrotechnical measures, the establishment of the most appropriate symbiosis between grafts (varieties) and rootstocks. This variety/rootstock union particularly influences tree growth, production and quality. Knowing the growth of the root system has an important role in choosing the system of use and tillage, in choosing the land. The varieties of nectarine on the frank peach rootstock had different vigor, vigor represented by the height, the diameter of the crown, respectively a lower vigor was recorded in the Marina variety, the other varieties being noted with much greater vigor. Compatibility between nectarine varieties and rootstocks was very good, with no split at the grafting point. Deeply developed roots were found in Costin, Tina and Romamer 2 nectarine varieties. Varieties from the pear species namely Williams red, Clapp's Favorite and Daciana showed average vigor and very good rooting - the same varieties together with the Williams white variety.

Transcripts Expressed during Germination Sensu Stricto Are Associated with Vigor in Soybean Seeds.

The rapid and uniform establishment of crop plants in the field underpins food security through uniform mechanical crop harvesting. In order to achieve this, seeds with greater vigor should be used. Vigor is a component of physiological quality related to seed resilience. Despite this importance, there is little knowledge of the association between events at the molecular level and seed vigor. In this study, we investigated the relationship between gene expression during germination and seed vigor in soybean. The expression level of twenty genes related to growth at the beginning of the germination process was correlated with vigor. In this paper, vigor was evaluated by different tests. Then we reported the identification of the genes Expansin-like A1, Xyloglucan endotransglucosylase/hydrolase 22, 65-kDa microtubule-associated protein, Xyloglucan endotransglucosylase/hydrolase 2, N-glycosylase/DNA lyase OGG1 and Cellulose synthase A catalytic subunit 2, which are expressed during germination, that correlated with several vigor tests commonly used in routine analysis of soybean seed quality. The identification of these transcripts provides tools to study vigor in soybean seeds at the molecular level.

Effect of the seed weight on the growth of young avocado rootstock seedlings

The cultivation of avocado cv. Hass (Persea americana Miller) in Colombia has grown in recent years. Among the country's challenges is to increase the orchards' productivity by guaranteeing grafts plants the best agronomic, genetic, and phytosanitary parameters. This work aims to evaluate for 90 days (nursery phase) the growth and development of avocado rootstocks originated from seeds with different weight ranges. A completely randomized experimental design was carried out, with treatments consisting in four Creole avocado seed weights (40-60 g, 60-80 g, 80-100 g, and over 100 g). In general, seeds greater than 80 g had the best germination percentage (over 70 %), a greater plant height, and a greater stem diameter in each of the evaluated periods. The seeds greater than 100 g presented the emergence of multiple stems at 30 days after transplanting; this fact was related to the size and reserves of the seed. The highest accumulated dry matter in stems, leaves, and total plant (without seeds) (cotyledons) were present in treatments with seeds above 80 g. These plants showed higher germination, significant more accumulation of biomass and greater vigor, which could shorten the nursery time while guaranteeing the quality of the material influenced by improved growth and seedling survival.

Organic material as supplementation for substrate in papaya seedlings production

Papaya is among the main fruit species produced in Brazil, representing high socioeconomic importance in productive regions. Changes in production methodologies aim to meet market demands and sector sustainability. In this sense, the use of organic compounds has been successfully used in the production of seedlings. The objective of the study was to evaluate the potential use of different sources of organic material for the composition of substrates used in the production of papaya seedlings, identifying the effects on the emergence and development of plants. Therefore, the treatments were composed of different substrates, namely: T1 – Soil; T2 – 75% soil and 25% chicken litter; T3 - 75% soil and 25% earthworm humus; T4 - 75% soil and 25% tanned cattle manure. When evaluating the characteristics, it was found that substrates composed of the fractions of earthworm humus and cattle manure allowed increases in the characteristics of shoot length, number of leaves, leaf area and stem circumference, while the presence of chicken litter interfered negatively on all the variables studied. It was concluded that organic compounds have the potential to favor the production of papaya seedlings. In this sense, the composition of the substrate alters the emergence and development of papaya seedlings, and the use of a fraction of 25% of earthworm humus allows the formation of seedlings with greater vigor, while the use of chicken litter in this same proportion should be avoided.

Assessment of phenotypes, physiological and behavioural responses associated with heat tolerance among Galla goats in North Eastern Kenya.

Galla goats have great adaptation vigor to different environments. However, the outcomes of the ongoing climate change have subjected livestock including the Galla goats to harsh environmental conditions like high ambient temperatures. In this study, Galla goats were characterized in the selected areas based on phenotypic, physiological, and behavioural responses to high environmental temperature. One hundred and forty-nine Galla goats selected from Isiolo, Garissa and Tana River were scored for various features such as coat colour, horn colour, skin colour, horn shape, horn length, ear orientation, ear length, wattles and horn circumference. Data collected were entered in an excel spread sheet then analyzed in R statistical software version 4.0.4. White was found to be the dominant coat colour with a percentage frequency greater than 60.0% in the studied counties. The study revealed that both male and female Galla goats possess horns with more than 88.9% of goats being horned across the three counties. There was a strong relationship between horn presence and the environmental temperature with p=0.05. A positive correlation was also observed between environmental temperature and rectal temperature, horn length, ear length and horn circumference. The findings show the presence of an important gene pool from which guidelines on conservation of heat stress phenotypes as a result of the ongoing climate change can be put in place.

The Imperialism of Democracy and Human Rights vs the Democracy and Human Rights of Imperialism

ABSTRACT Western discourse towards China had been hardening since it became clear to US leaders that their assumption that increasing trade and engagement with China would lead it to become a pale imitation of Western neoliberal financialised capitalisms was coming unravelled and China continued to adhere to its socialist commitments. In waging the US’s New Cold War on China with equal if not greater vigour than Trump, Biden merely replaced Trump’s “America First” stance with the traditionally hypocritical stance of imperialism that always pretends to do good for the world it seeks to dominate, oppress, exploit and otherwise destroy. The latest version of this discourse is about promoting human rights and democracy. At a time when US and Western democracies are being assailed by a toxic combination of inequality, poverty, distrust, social division and political disaffection and polarisation, at a time when US imperialism’s distinctly anti-democratic edge is becoming ever more evident, this stance is only facing mounting contradictions. The present article explores them.

ENLARGEMENT OF COMMUNITIES AND LEGISLATIVE BASES FOR THE FORMATION OF LOCAL SELF-GOVERNMENT BODIES / ՀԱՄԱՅՆՔՆԵՐԻ ԽՈՇՈՐԱՑՈՒՄԸ ԵՎ ՏԵՂԱԿԱՆ ԻՆՔՆԱԿԱՌԱՎԱՐՄԱՆ ՄԱՐՄԻՆՆԵՐԻ ՁԵՎԱՎՈՐՄԱՆ ՕՐԵՆՍԴՐԱԿԱՆ ՀԻՄՔԵՐԸ

The administrative-territorial reforms launched in the Republic of Armenia continued with great vigor at the end of 2021. As a result of the administrative-territorial reforms, 441 communities were joined into about 38 enlarged communities. In parallel with the enlargement, changes were made in the electoral system, according to which the elections of the community council should be conducted by the proportional electoral system, and the head of the community should be elected by the municipal council. This marked the beginning of a new phase of the administrative reform, the aim of which should be the establishment and continuous development of the local self-government system.

Temperaturas de secado de semillas de tomate de cáscara (Physalis ixocarpa Brot. ex Horm)

Tomatillo (Physalis ixocarpa Brot. ex Horm.) is widely grown in Mexico with non-certified seed.Little research has been done on seed drying and physiology. Seed drying is a fundamental process in production technology, and the temperature used can affect its quality. This study aimed to evaluate the effect of different drying temperatures on the physical and physiological quality of seeds of four varieties (Tecozautla 04, Diamante, Gema and Manzano Tepetlixpa) in three storage periods. Seeds of each variety were dried in an oven until reaching constant weight at different temperatures: ambient, 30, 35, 40, 45, 50, 55 and 60 °C; subsequently, they were stored under ambient laboratory conditions for 0, 2 and 4 months. The experimental unit was 5 g of seeds. The study was carried out under a completely randomized experimental design with four replications. Physiological quality was evaluated with standard germination tests, and with the vigor test the germination speed index, total seedling length and seedling dry weight were determined. Seed quality was affected by temperature. When drying from 30 to 35 °C, the seeds expressed their maximum physiological quality, and above 45 °C their quality decreased. Tecozautla 04 had the greatest vigor, whereas Diamante had the least vigor and was the most sensitive to damage during the drying process. After two months of storage, the seeds showed the best physiological quality.

Análise estrutural de vagens e sementes de soja submetidas à deterioração por umidade em pré-colheita

Abstract The objective of this work was to analyze structurally the pods and seed coats of soybean (Glycine max) cultivars, as well as to determine the quality of seeds when subjected to deterioration by weathering in pre-harvest. A 7×3 factorial arrangement was used – seven cultivars and three volumes of simulated rainfall (0, 54, and 162 mm). Exposure to rainfall was simulated in the R8 phenological stage. Then, the plants were taken to a greenhouse, where they were kept until the time of collection of pods and seeds. After collection, the following evaluations were carried out: tetrazolium test, lignin content in pods and seed coats, and structural analysis of pods (exocarp, mesocarp, and endocarp thickness) and seed coats (epidermis, hypodermis, and parenchymal-cell thickness). Pre-harvest rainfall of 54 and 162 mm reduces the quality of soybean seeds; however, the response to deterioration by weathering differs according to the cultivar. The tolerance to all simulated rainfall was greater for BRSMT Pintado, BRS Jiripoca, and M8210IPRO and lower for BRS 1010IPRO. Pods with a greater thickness of the exocarp, mesocarp, and endocarp and a high lignin content show greater resistance to weathering deterioration and seeds with greater vigor and viability. The thickness of the hypodermis of the testa is related to resistance to weathering deterioration and to the obtainment of high-quality seeds.

Capacidade antioxidante equivalente ao trolox em sementes de Coffea arabica L.

ABSTRACT The causes of the low desiccation tolerance and low longevity of coffee seeds have not yet been fully elucidated, and a full understanding of their complex physiology is of great interest. Among several alternatives, the loss of antioxidant capacity in seeds may be related to their rapid loss in quality during storage. The objective of this study was to determine the total antioxidant capacity of coffee harvested at different ripeness stages before and after the storage of seeds with different water contents and to relate antioxidant capacity to physiological quality. Seeds in the greenish-yellow or cherry stages, recently harvested or stored for nine months at 10 °C with 40, 30, 20 and 12% water content (wet basis - wb), were submitted to physiological and biochemical quality evaluations, and the Trolox equivalent antioxidant capacity (TEAC) was determined. The germination and root protrusion of coffee seeds from greenish-yellow and cherry fruits were not affected by drying, but seeds harvested at physiological maturity had greater vigor when the moisture content was lower. The quality of coffee seeds decreased during storage, and this decrease was greater in seeds stored with higher water contents. Coffee seeds in the greenish-yellow stage had a higher antioxidant capacity than those in the cherry stage when recently harvested, but there was a substantial reduction in this capacity during storage at both maturation stages. Coffee seed deterioration is related to a reduction in antioxidant capacity, and the isoenzymatic profiles of the antioxidant process are little affected by the seed maturation stage. The deterioration of coffee seeds during storage is related to a reduction in their total antioxidant capacity, regardless of their maturation stage, being more pronounced in the greenish-yellow stage.

Physiological Parameters and Development of Passion Fruit Subjected to Water Stress and Propagation Methods

HIGHLIGHTS Irrigation intervals over 8 days compromise the physiology of passion fruit. Passion fruit seedlings grafted into seedlings obtained by cuttings or seeds have greater vigor. Passion fruit seedlings propagated by seeds show greater efficiency in the use of water. Propagation methods influence the development of passion fruit.

Preliminary test: Evaluation and selection of tomato (Lycopersicon esculentum Mill.) varieties resistant to drought and powdery mildew

Powdery mildew (Leveillula taurica) and (Oidium neolycopersici) are two harmful fungi that invade the tomato (Lycopersicon esculentum Mill.) plant and grow in dry conditions. Under the influence of polyethylene glycol 6000 at a concentration of 12%, the total seedlings fresh weight, total seedlings dry weight, seedling growth rate of one seedling, seedling length, and tissue water content percentage for three tomato varieties were assessed. Despite the superiority of the (Mobil) tomato variety in terms of numerical values, the results revealed no significant differences between varieties. As a result, (Mobil) has greater vigor under environmental drought stress of lower osmotic stress than other tomato varieties. More work is required to evaluate the research selection of varieties resistant to biotic stresses in dry areas, such as powdery mildew disease.