Ramamurthy Somasundaram

• Doctor of Philosophy
• Professor at Annamalai University

This is an Open Access Journal / article distributed under the terms of the Creative Commons Attribution License (CC BY-NC-ND 3.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. All rights reserved. Soil salinity represents a significant global challenge that negatively im...

This is an Open Access Journal / article distributed under the terms of the Creative Commons Attribution License (CC BY-NC-ND 3.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. All rights reserved. Excessive soil salinity, raised from high salt concentrations, is a harsh...

Embark on a journey through time and biology as we delve into the fascinating realm of calcium oxalate crystals in plants. From their historical roots in the 1600s to cutting-edge molecular insights, this research unveils the secrets behind these microscopic treasures. Discover the diverse roles these crystals play in plants-from calcium regulation...

Embark on a journey through time and biology as we delve into the fascinating realm of calcium oxalate crystals in plants. From their historical roots in the 1600s to cutting-edge molecular insights, this research unveils the secrets behind these microscopic treasures. Discover the diverse roles these crystals play in plants-from calcium regulation...

Salinity stress is one of the main abiotic stresses that have a negative impact on the growth performance of green gram. The current study was carried out as a result to find out growth, and morpho-biochemical changes in Vigna radiata CO7 variety cultivated under NaCl stress treatments. The V. radiata CO7 variety was selected and the experiment was...

This is an Open Access Journal / article distributed under the ter ms of the Creative Commons Attribution License (CC BY-NC-ND 3.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. All rights reserved. Salinity is the main environmental problem in the world decreasing the gr...

One of the main environmental factors that limits plant performance and lowers production is soil salinity, such as NaCl stress. Therefore, to cultivate salt-tolerant crops, it is essential to understand the physiological aspects of plant to NaCl stress and use the natural genetic resource linked with salt tolerance. Rice is relatively a salt-sensi...

Salt stress caused by high soil salinity is one of the most serious limiting factors threatening crop production in many parts of the world. Salt stress is one of the most prevailing abiotic stress imposing threats for agriculture food crops along with increasing world population and limited natural resources

Salt stress is one of the big major environment constraints reductions as a result of the growth and yield of important crops around the world. The deficiency of other nutrients in the soil is due to the high concentration of Na+ that interacts with other environmental factors such as drought which exacerbate the problem. In crop plants, salt stres...

Drought is one of the environmental stressors that limits plant growth, production, and is a great threat to the rising population and security throughout the globe. In the present work, we aimed to check the impact of drought stress given at different days interval drought (DID) on proso millet and its tolerance capability. The pot culture experim...

Due to the increasing use of water of low quality for irrigation and soil salinization, salinity is a significant abiotic stress that restricts plant development and productivity in many parts of the world. Peanut (Arachis hypogaea L.) is one of the most important legume crops grown worldwide as a source of edible oil and vegetable protein. Arid an...

Salinity is a major a biotic stress limiting growth and productivity of plants in many areas of the world due to increasing use of poor quality of water for irrigation and soil salinization. Peanut (Arachis hypogaea L.) is one of the most important legume crops grown worldwide as a source of edible oil and vegetable protein. Arid and semi-arid regi...

Among abiotic stresses soil salinity has become one of the major environmental constraints results in reduction of growth and yield of important crops around the world. Thus, to reduce the negative impact of NaCl stress on crops some alternative approaches like use of growth regulators and vitamins could serve as potential weapons to mitigate the d...

Salinity stress is a big hurdle towards growing population as it accounts for a huge loss of crop productivity. So, alternative approaches are to be made to increase crop resistance towards various climatic entities including drought, salt so on. One approach is the exogenous supply of salicylic acid-a potential regulator and ascorbic acid-a strong...

Soil salinity has become a hot debate and has gained a great scientific interest towards global food security for an increasing population. Because salinity has numerous negative effects on crop physiology and results loss of productivity. Various attempts to overcome salinity have led to detrimental effects. However, scientists have been recruited...

In our investigation, effect of auxin on rooting and sprouting behavior of stem cutting of Excoecaria agallocha has been studied. Initially stem cuttings was pretreated to remove the phenol content in the cutting and then the stem cuttings that was devoid from phenols cuttings were subjected to hormonal treatment with auxins derivatives as IBA 2000...

In our investigation, the effect of auxin on rooting and sprouting behavior of stem cutting of Excoecaria agallocha has been studied. Initially stem cuttings were pretreated to remove the phenol content in the cutting and then they stem were subjected to hormonal treatment with auxins derivatives as IBA 2000 ppm, IPA 2000 ppm, NAA 2000 ppm, and IBA...

Salinity stress poses a great threat to a growing population that accounts for huge agricultural loss per annum. Millets are well-known crop plants having the ability to grow well in different soil profiles under changing climatic conditions. In this view, the present study was chosen to determine the effects of NaCl stress on Panicum sumatrense (L...

In nature, plants are always subjected to various abiotic stresses such as drought, salinity, high temperatures and so on. Among these drought is a worldwide problem, responsible for limiting the growth, physiology and productivity of plants, thus has become a challenge for global food security towards growing population. Proso millet (Panicum mili...

The present investigation was carried out to find the morphological and biochemical variation in Tomato (PKM-1) seedlings under drought with triazole treatments. The pots were arranged in Completely Randomized Block Design (CRBD). The seedlings were allowed to grow up to 30 days with regular water irrigation. The water was irrigated by 4 Days Inter...

Present investigation was focused on the response and regulation of the antioxidant defense system and photosynthetic pigment variation effect of two important fungicides or plant growth regulators Hexaconazole (HEX) and Tebuconazole (TBZ) on drought stressed tomato (Lycopersicon esculentum Mill.) plants. Drought stress was imposed for 30 Days afte...

In this study, the changes in enzymatic and non-enzymatic antioxidants of Solanum trilobatum was estimated upon treatment with plant growth regulators (PGR) like Abscisic acid (ABA), Paclobutrazol (PBZ) and Salicylic acid (SA). The given treatments were started at 70th day followed by 80th, 90th and 100th Days After Sowing (DAS). The groups were tr...

In this study, the protective role of propiconazole (PCZ) and salicylic acid (SA) in relation to biochemical content and some physiological parameters were investigated in drought stressed Sorghum bicolor plants. The pot culture experiment was carried out on Botanical garden, Deportment of Botany, Annamalai University. A 30 Days After Sowing (DAS)...

A pot-culture experiment was carried out to estimate the ameliorating effect of Propiconazole (PCZ) and Salicylic acid (SA) on drought stressed Sorghum bicolor. The plants were subjected to 3, 6 and 9 Day Interval Drought (DID) and drought with PCZ 1 mM and SA 1 mM alone from 30, 40 and 50 Days After Sowing (DAS). One day interval irrigation was ke...

The present investigations were carried out to estimate the morphological, pigments variation and ameliorating effect of propiconazole (PCZ) and salicylic acid (SA) on drought stress in sorghum (Sorghum bicolor L. Moench.) Var. CO-30. A 30 days after sowing (DAS), the plants were subjected to 3, 6, and 9 days interval drought stress and drought wit...

A pot-culture experiment was conducted to estimate the ameliorating effect of triazole compounds Hexaconazole, Tebuconazole and Propiconazole on drought stress in sunflower (Helianthus annuus L.). The plants were subjected to drought (DID) stress after four days of interval from the 30th day of sowing (DAS). One-day-interval irrigation was kept as...

Abelmoschus esculentus L. was selected for present study under pot culture in Completely Randomized Block Design (CRBD) experiment, hexaconazole and tebuconazole are a triazole derivative, which have both fungicidal and plant growth regulator (PGR) properties and also protect plants from several types of abiotic stresses. The plants were subjected...

For the past several years, several techniques of physiology have been applied to overcome the water deficit and drought stress in field crops. However little information is gained on the response to PBZ and ABA treatments under drought stress and their ameliorative actions on Sesamum. So a study was carried out to understand the effect of PBZ and...

Plant growth and productivity is adversely affected by nature's wrath in the form of various biotic and abiotic stress factors. Water deficit is one of the major abiotic stresses, which adversely affects crop growth and yield. These changes are mainly related to altered metabolic functions, one of those is either loss of or reduced synthesis of pho...

A pot-culture experiment was conducted to estimate the ameliorating effect of triadimefon (TDM) on drought stress in sunflower (Helianthus annuus L.) plants. The plants were subjected to 3-, 6-, and 9-day-interval drought (DID) stress and drought stress with TDM @ 15 mg l(-1) and 15 mg l(-1) TDM alone from the 30th day after sowing (DAS). One-day-i...

In the present investigation, five varieties of okra (Abelmoschus esculentus (L.) Moench.) were screened for their water use efficiency under two water regimes, viz., 60% and 100% filed capacity. Drought stress was imposed at 60% field capacity from 30 to 70 days after sowing, while the control pots were maintained at 100% field capacity throughout...

Experiments were conducted to study the effects of different sodium salts viz., sodium chloride (NaCl), sodium sulphate (Na(2)SO(4)) and sodium carbonate (Na(2)CO(3)) on growth, dry matter production, mineral contents, biochemical constituent and enzyme activities of sunflower (Helianthus annuus L.). The germinating sunflower seeds were treated wit...

A pot culture experiment was conducted to estimate the stress ameliorating ability of paclobutrazol, a triazole fungicide in Vigna unguiculata (L.) Walp. plants. Treatments were given as 80 mM NaCl, 80 mM NaCl+15 mg l(-1) paclobutrazol and 15 mg l(-1) paclobutrazol alone. The samples were collected on 60 and 80 days after sowing (DAS). NaCl stress...

This work assesses the ameliorating effect of calcium chloride on sodium chloride-stressed plants of Vigna radiata (L.) Wilczek. Plants were treated with solutions of 100 mM NaCl, 100 mM NaCl with 5 mM CaCl(2), or 5 mM CaCl(2). Groundwater was used for irrigation as the control. Plants were harvested randomly 30 and 50 days after sowing. NaCl and C...

In the present investigation, the impact of hexaconazole (HEX) and paclobutrazol (PBZ), triazole fungicides, on the leaf anatomy of Chinese potato (Solenostemon rotundifolius Poir., J.K. Morton) was studied. The thickness of leaf, upper and lower epidermis, number of palisade and spongy cells per unit area, number of chloroplast per palisade and sp...