scholarly journals Abiotic Stress and Red Clover: A Less Explored Area of Research

2020 ◽  
pp. 1-5
Author(s):  
Afsha Parween ◽  
Vikas Singh ◽  
Monika Bajpai
Keyword(s):  
Abiotic Stress ◽  
Trifolium Pratense ◽  
Root Nodules ◽  
Red Clover ◽  
Climatic Conditions ◽  
Stress Conditions ◽  
Symbiotic Association ◽  
Centre Of Origin ◽  
Inflammatory Conditions ◽  
Phosphorus And Potassium

Red clover (Trifolium pratense L.) is one of the main forage species from temperate regions and its centre of origin is located in southern Europe and southern Eurasia. Although red clover is Mediterranean in origin, it is a widely adapted species grown in many climatic conditions around the world. It is a perennial, medicinal herb from legume family and it grows best in calcium, phosphorus and potassium rich soils. This medicinal plant is in symbiotic association with bacteria present in its root nodules, thus the plant is capable of fixing the atmospheric nitrogen into the soil thereby increasing the quality of the soil. Red clover is typically used to treat a number of respiratory ailments such as asthma, bronchitis, and bronchitis, skin disorders such as eczema and psoriasis, inflammatory conditions like arthritis, and to treat women's health problems especially in giving relief from menopausal symptoms. However, the response of Red Clover under abiotic stress conditions is a less explored area of research. The present review highlights the existing potential of Red clover in fighting abiotic stress conditions and also explains the need of developing resistant varieties of this plant to meet the future challenges.

scholarly journals The Effects of Red Clover Seed Treatment with Cold Plasma and Electromagnetic Field on Germination and Seedling Growth Are Dependent on Seed Color

2021 ◽  
Vol 11 (10) ◽  
pp. 4676
Author(s):  
Anatolii Ivankov ◽  
Rasa Zukiene ◽  
Zita Nauciene ◽  
Laima Degutyte-Fomins ◽  
Irina Filatova ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Cold Plasma ◽  
Trifolium Pratense ◽  
Root Nodules ◽  
Germination Rate ◽  
Red Clover ◽  
Seed Color ◽  
Seed Treatments ◽  
Capacitively Coupled ◽  
Clover Seed

This study aimed to estimate the effects of cold plasma (CP) and electromagnetic field (EMF) treatment of red clover (Trifolium pratense) seeds with different coat colors on germination kinetics, the content of seed phytohormones, and the growth of seedlings. Seeds of red clover cultivar ‘Arimaiciai’ were treated with radio-frequency EMF or capacitively coupled low-pressure CP for different durations. There were no differences in germination kinetics between yellow, brown, and dark purple seeds in control, but the germination rate of seeds treated with CP and EMF depended on seed color: The germination of yellow seeds was stimulated stronger compared to dark purple and brown seeds, and EMF did not stimulate germination in brown seeds. The content of phytohormones in control seeds and the shift in their amount induced by seed treatments were also strongly dependent on seed color. No relationship was found between the effect on germination kinetics and changes in phytohormone levels. In the control, seedlings growing from the yellow seeds were heavier, and the number of root nodules was 12.5 times larger compared to seedlings of dark purple seeds. Seed treatments with CP and EMF significantly increased the number of root nodules, and this effect was stronger in seedlings from dark purple seeds compared to those from yellow seeds.

INFLUENCE DES CULTIVARS ET DES STADES DE PRÉLÈVEMENT DE LA PREMIÈRE POUSSE SUR LA PRODUCTION DE SEMENCE DE TRÈFLE ROUGE

1990 ◽  
Vol 70 (4) ◽  
pp. 1071-1080 ◽  
Author(s):  
LUCIUS BELZILE
Keyword(s):  
Seed Germination ◽  
Seed Production ◽  
Seed Yield ◽  
Trifolium Pratense ◽  
Red Clover ◽  
Kernel Weight ◽  
Climatic Conditions ◽  
Cultivar Group ◽  
Stage Of Development ◽  
Clover Seed

For five years, the effect of cultivars and vegetative stage of cutting were measured on red clover (Trifolium pratense L.) seed production. The first group of cultivars included Hungaropoli, Ottawa and Lakeland harvested in 1981 and 1982. The second group included Arlington, Florex and Prosper I harvested in 1984, 1985 and 1987. The total annual seed yield differed within cultivars and the highest seed yield was obtained with Hungaropoly and Florex. In the first cultivar group, the tetraploid Hungaropoly obtained a kernel weight higher than the diploids Lakeland and Ottawa. In the second group of cultivars, all diploids, Arlington yielded the highest kernel weight. The percentage of seed germination of Hungaropoly was higher than Lakeland and Ottawa while for Florex it was slightly higher than Arlington and Prosper I. A prior vegetative cutting is essential for good seed yield. In the absence of vegetative cutting seed weight seemed improved. The stage of development at which vegetative cutting is done has little influence on percentage seed germination. These results have shown that despite the strong effect of climatic conditions on seed production, the choice of the optimum stage for vegetative cutting and a well adapted cultivar are important aspects in successful seed production.Key words: Red clover, seed production, cultivar, stage of cutting

scholarly journals EFFECT OF SOIL AND GROWTH CLIMATIC CONDITIONS ON VITAMIN CONTENT OF RED CLOVER (Trifolium pratense L.)

2020 ◽  
Vol 8 (Spl-2-AABAS) ◽  
pp. S292-S297
Author(s):  
Alexander Leonidovich Mikhailov ◽  
◽  
Olga Arnoldovna Timofeeva ◽  
Uliana Aleksandrovna Ogorodnova ◽  
Nikita Sergeevich Stepanov ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Vitamin A ◽  
Trifolium Pratense ◽  
Red Clover ◽  
Ascorbic Acid Content ◽  
Southern Taiga ◽  
Climatic Conditions ◽  
Deciduous Forests ◽  
Vitamin Content ◽  
Trifolium Pratense L

The current study was conducted to estimate the effect of soil and growth climatic conditions on the vitamin content of red clover (Trifolium pratense L.). Further, in vitamins, the content of ascorbic acid and vitamin A (provitamin – carotene) was estimated from the aerial parts of the clover. Ascorbic acid is a powerful antioxidant, antiviral, and antitumor vitamin while vitamin A is a useful vitamin for eyesight. Ascorbic acid content in the red clover tissues was determining potassium hexacyanoferrate method while Provitamin A and total carotenoid was estimated by spectrophotometric method. Results of the study revealed that the highest content of vitamins C was found in the plant grown under the climatic conditions of the southern taiga subzone of the Atninsky and in the zone of deciduous forests (Apastovsky and Kamsko-Ustinsky districts) while the plant is grown under the coniferous-deciduous forests (Zelenodolsky district) climatic conditions are a rich source of vitamin A. From the results of the study, it can conclude the soil and growing conditions especially temperature regime and soil moisture affected the level of vitamins in red clover.

Effet des types de sol sur la production de semence du trèfle rouge

1991 ◽  
Vol 71 (4) ◽  
pp. 1039-1046 ◽  
Author(s):  
Lucius Belzile
Keyword(s):  
Seed Production ◽  
Trifolium Pratense ◽  
Red Clover ◽  
Climatic Conditions ◽  
Thousand Grain Weight ◽  
Light Soil ◽  
Different Types ◽  
Percent Germination ◽  
Trifolium Pratense L ◽  
Clover Seed

Red clover (Trifolium pratense L.) was grown for seed production after the seeding year on two different types of soils, in the same climatic area. An important difference in yield which was often related to cultivar and sometimes to year was observed between the two soils — the light soil, Saint-André gravelly loam, produced more seed than the heavy Kamouraska clay. Seed yield differed between cultivars with Florex and Arlington producing the most. On an annual basis, the thousand-grain weight was higher on Kamouraska than on Saint-André. The percent germination was not influenced by soil type and cultivar but variation between years was observed. The production of heads per plant was higher on Saint-André. The number of seeds produced per plant and per head was, as for yield, higher on Saint-André than Kamouraska. The influence of cultivars and years was not always visible on these last parameters. Therefore these results demonstrate that generally the success of red clover seed production depends not only on cultivar and climatic conditions, but that within the same climatic area the type of soil is a major factor. Key words: Red clover, seed production, soil effect, year of harvest, cultivar, yield components

scholarly journals Seasonal changes of proteins, structural carbohydrates, fats and minerals in herbage dry matter of red clover (Trifolium pratense L.)

2011 ◽  
Vol 27 (4) ◽  
pp. 1543-1550 ◽  
Author(s):  
S. Vasiljevic ◽  
B. Cupina ◽  
Dj. Krstic ◽  
I. Pataki ◽  
S. Katanski ◽  
...  
Keyword(s):  
Dry Matter ◽  
Trifolium Pratense ◽  
Red Clover ◽  
Cellulose Fiber ◽  
Production Cycle ◽  
Fiber Fractions ◽  
Trifolium Pratense L ◽  
Second Year ◽  
Phosphorus And Potassium ◽  
Novi Sad

Red clover (Trifolium pratense L.) is the second most important perennial forage legume, after alfalfa. It is a significant source of proteins, which are essential in the diet of domestic animals, especially ruminants. The objective of this study was to determine the most important characteristics of dry matter quality (crude proteins, structural carbohydrates, fats and minerals) in three varieties of red clover (K-17, Kolubara and Una). The characteristics were monitored, per individual cuts, during one production cycle of red clover, i.e., in the period 2004- 2006. Highest contents of crude protein in all three test years were obtained in the second cut. Significantly increased contents of crude proteins (18.32%) and potassium (K-2.53%) were found in the red clover cultivar Una developed in Novi Sad. Significantly increased values of both cellulose fiber fractions (NDF, ADF) were registered in the second year of growing. The highest content of minerals was determined at the beginning of the growing season in the first and second year (8.68% and 8.52%, respectively). Here it should be mentioned that the contents of basic biogenous elements, phosphorus and potassium, were within the expected optimum range.

scholarly journals Genetic and Phenotypic Diversity of Rhizobia Isolated from Trifolium rubens Root Nodules

Agronomy ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1286
Author(s):  
Anna Marzec-Grządziel ◽  
Anna Gałązka ◽  
Monika Marek-Kozaczuk ◽  
Anna Skorupska
Keyword(s):  
Trifolium Pratense ◽  
Phenotypic Diversity ◽  
Root Nodules ◽  
Red Clover ◽  
Nitrogen Sources ◽  
Negative Control ◽  
Strong Positive Correlation ◽  
16S Rrna Sequence ◽  
Experimental Conditions ◽  
High Genetic Diversity

The aim of this study was to analyse the genetic and phenotypic differentiation of bacteria isolated from root nodules of Trifolium rubens, a rare clover species. The symbiotic compatibility of selected isolates was investigated using two agronomically important plants, red clover (Trifolium pratense L.) and pea (Pisum sativum L.). A high genetic diversity of analysed strains was shown using the Enterobacterial Repetitive Intergenic Consensus Polymerase Chain Reaction (ERIC-PCR) method. Most of the strains showed a high similarity to R. leguminosarum in the 16S rRNA sequence. Two strains were identified as Agrobacterium spp. There was a strong positive correlation between fresh clover weight and the number of root nodules and a statistically significant increase in the number of the root nodules in selected strains compared to the negative control. Phenotypic tests and BIOLOG analysis showed the ability of the analysed strains to grow in different experimental conditions (pH = 6–10, 0.5–3% NaCl, different carbon and nitrogen sources), which makes them suitable for application as an agronomically important factor.

scholarly journals A Forage Mixture with Red Clover in the Fourth Experimental Year

2016 ◽  
Vol 73 (2) ◽  
pp. 349
Author(s):  
Ioan Rotar ◽  
Roxana Vidican ◽  
Florin Păcurar ◽  
Anamaria Mălinaş ◽  
Ioana Vaida ◽  
...  
Keyword(s):  
Festuca Arundinacea ◽  
Trifolium Pratense ◽  
Agricultural Research ◽  
Complex Mixture ◽  
Red Clover ◽  
Climatic Conditions ◽  
Phleum Pratense ◽  
Mineral Fertilization ◽  
Agricultural Research And Development ◽  
Different Doses

The present paper aims to follow the behaviour of a forage mixture with red clover in the fourth experimental year. We followed the behaviour of a complex mixture consisting of Trifolium pratense (15%), Lolium perenne (20%), Festulolium (25%), Festuca arundinacea (25%) and Phleum pratense (15%) under the influence of mineral fertilization in the climatic conditions specific Plateau of Transylvania, Romania. Experience was installed in the spring of 2012 in experimental fields located inside the Agricultural Research and Development Station Turda. The mixture was sown on 2 densities namely 12.5 cm and 25 cm distances between rows and they were fertilized in early March with complex NPK and ammonium nitrate (33.3%) in four different doses: V1 - control variant, unfertilized, V2-N50P60K80, V3- N75P60K80 and V4 -N100P60K80. An interesting evolution of the forage mixture was observed in the fourth experimental year. Fertilization with N75P60K80 seemed to have a favourable influence on forage mixture productivity. 

Carbonic anhydrase genes network: Key role players in pH flux and abiotic stress tolerance

2016 ◽  
Vol 3 (4) ◽  
Author(s):  
Jeshima Khan Yasin ◽  
Neha Singh ◽  
Inderjeet Bhogal ◽  
Bharat Kumar Mishra
Keyword(s):  
Abiotic Stress ◽  
Carbonic Anhydrase ◽  
Carbonic Acid ◽  
Abiotic Stress Tolerance ◽  
Climatic Conditions ◽  
Stress Conditions ◽  
Extreme Condition ◽  
Network Analyses ◽  
Abiotic Stress Condition ◽  
Role Players

The persistent change in climatic conditions increasing the exiting stress conditions for plants resulting the internal fight to overcome stress challenges. Under normal condition CO2 fixed in cells enters either c3 or c4 cycle. Whereas, any imbalance/stress leads to the accumulation of carbonic acid and hydrogen peroxide; even, at extreme condition cyanide accumulation leads to cell death. Identification of interacting molecules by network analyses will help in translational research and network rewiring in developing adaptations to abiotic stress conditions. In this report, we tried to elucidate the existing carbonic anhydrase network of Glycine max and its relationship with abiotic stress condition.

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