scholarly journals Allelopathic influence of medicinal plant Filipendula vulgaris Moench on germination process

2020 ◽  
Vol 48 (4) ◽  
pp. 2032-2049
Author(s):  
Michał FECOWICZ ◽  
Katarzyna MOŻDŻEŃ ◽  
Beata BARABASZ-KRASNY ◽  
Alina STACHURSKA-SWAKOŃ
Keyword(s):  
Medicinal Plant ◽  
Calcareous Grassland ◽  
Tolerance Index ◽  
Aqueous Extracts ◽  
High Concentration ◽  
Natural Habitats ◽  
Seed Vigour ◽  
Allelopathic Potential ◽  
Vigour Index ◽  
Filipendula Vulgaris Moench

The allelopathic potential of medicinal plant Filipendula vulgaris Moench, originated from two natural habitats: calcareous grasslands and humid meadows, was investigated using radish (Raphanus sativus L. var. radicula Pers.) as a model plant. Suppression influence of aqueous extracts at concentrations: 1%, 5%, 10%, obtained separately from under and aboveground parts of the species, was studied testing germination capacity, biomass and biometry of seedling, and electrolyte leakage. Additionally, two cultivars of the radish were used to test the sensitivity of frequently used plant in the laboratory tests. This study revealed the inhibiting effect of high concentration aqueous extracts from F. vulgaris organs on the germination of radish. It was significant for seed vigour index, speed emergence, germination stress tolerance index, and mean germination time. However, the stimulating effect of 1% of aqueous extracts from dropwort roots and shoots on the germination indexes was documented. Similarly, low concentration extracts had a positive effect on seedling elongation which was visible in biometric analyses and inhibition percentage index but it was not so obvious in the biomass analyses. In general, the aboveground extracts from dropwort grown on calcareous grassland demonstrated higher allelopathic potential than extracts from underground parts and meadow habitat.

scholarly journals The Influence Of Zinc On Seed Germination And Growth In The First Ontogenetic Stages In The Species Cucumis Melo L.

2015 ◽  
Vol 9 (2) ◽  
pp. 215-228 ◽  
Author(s):  
Anişoara Stratu ◽  
Naela Costică
Keyword(s):  
Seed Germination ◽  
Cucumis Melo ◽  
Growth Process ◽  
Lateral Roots ◽  
Tolerance Index ◽  
High Concentration ◽  
Seedling Vigour ◽  
Ontogenetic Stages ◽  
Vigour Index ◽  
Germination And Growth

AbstractThe paper presents the results of a study regarding the influence of treatment with zinc in different concentrations (50 mg∕l, 100 mg∕l, 200 mg ∕l, 300mg/l, 400 mg ∕l, 500 mg/l, 600 mg ∕l) on seed germination and growth in early ontogenetic stages ofCucumis meloL. We analyzed the following indicators: the percentage of germinated seeds; the length of root, the length of the hypocotyl and the length of the seedling; the number of the laterale roots; the tolerance index and the seedling vigor index. The results underline the specific variations of analysed indicators, depending on the concentrations used for the treatments of seeds. The concentrations used for treatment do not influence negatively the seed germination, but affected the seedling growth (especially the root elongation), the formation and growth process of lateral roots and the seedling vigour index. The delay effect of growth process is very pronounced in the case of high concentration.

scholarly journals Ameliorative Effect of Seed Priming on Germination, Vigour Index and Tolerance Index against Short Term Moisture Stress in Maize (Zea mays L.)

2020 ◽  
Author(s):  
V. Singh ◽  
M. Sharma ◽  
H. Upadhyay ◽  
A. Siddique
Keyword(s):  
Polyethylene Glycol ◽  
Seed Priming ◽  
Moisture Stress ◽  
Magnesium Nitrate ◽  
Tolerance Index ◽  
Short Term ◽  
Seed Vigour ◽  
Peg 6000 ◽  
Vigour Index ◽  
Polyethylene Glycol 6000

An experiment was carried out to evaluate the effect of seed priming with magnesium nitrate salt against the moisture stress condition induced by Polyethylene glycol-6000 on seed germination, vigour index and tolerance index in root and shoot. Polyethylene glycol-6000 was used to create short term moisture stress under laboratory conditions while the seed priming was carried out by using magnesium nitrate. The percent germination, seed vigour index and tolerance index were started to decline from T1 to T4 (i.e. set first 1.5 and 4.5 % of PEG-6000 solution + none primed seed) while the results of second set (i.e. PEG-6000 + primed seed from T5 to T8) were also following the same decreasing trend along with improvement in every parameters. The germination was recorded highest 100 percent in T5 (i.e. 1.5% PEG-6000+ primed seed) followed by T6, T1 and T7 (T6 and T7 is 2.5% and 3.5 % PEG-6000+ primed seed) while the control set recorded 98.7% at final date of observations i.e. 240 Hrs. vigour index and tolerance index was also decreasing in both the set of treatments but PEG-600 + primed seed showed better results as compared to the treatments PEG-6000 + none primed. Tolerance index percent was recorded maximum in root as compare to shoot at 120 hrs. of intervals while the reverse result was recorded at 240 hrs. of intervals.

scholarly journals Effects of Salinity on Germination Behaviour of Two Paddy Landraces Grown in Chakrata, Dehradun, Uttarakhand, India

Agropedology ◽  
2019 ◽  
Vol 26 (2) ◽  
Author(s):  
Ranbeer Singh Chauhan ◽  
◽  
J.S. Chauhan ◽  
A.S. Rawat ◽  
Dinesh Singh Rawat ◽  
...  
Keyword(s):  
Oryza Sativa L ◽  
Dry Weight ◽  
Germination Percentage ◽  
Tolerance Index ◽  
Seed Vigour ◽  
Weight Percentage ◽  
Germination Ability ◽  
Vigour Index ◽  
Germination Behaviour ◽  
Salt Tolerance Index

Germination ability of seeds varies significantly amongst different varieties of same crop when exposed to the stress. Paddy (Oryza sativa L.) is known to be highly sensitive to salinity during germination and young seedling stages. Present study was aimed to observe the effects of six salinity concentrations (0%, 0.1%, 0.5%, 1%, 1.5% and 2%) on the germination behaviour of two paddy landraces (Chenaphool and Gyasu), frequently grown in Chakrata area of district Dehradun, Uttarakhand. Salinity (>0.1%) was inversely related to final germination percentage, germination energy, plumule dry weight, plumule length, radical dry weight, radical length and speed of germination. Chenaphool landrace showed higher germination and growth (plumule and radical) at 0% salinity (control), while Gyasu landrace at 0.1% salinity level.Dry weight percentage reduction increased with increasing salinity level, while negative correlation was observed between salinity and salt tolerance index and seed vigour index for both the varieties. The study concluded that the long grained, irrigated landrace Chenaphool was more sensitive to salinity in comparison to short grained, non-irrigated landrace Gyassu. Lower salinity conditions have no adverse effects on the germination behaviour of Gyasu landrace.

Herbicidal potential of Aerva javanica to control wild oat in wheat crop

2020 ◽  
Vol 51 (2) ◽  
pp. 177-194
Author(s):  
Al-Ghamdi A.M. ◽  
El-Zohri M
Keyword(s):  
Dry Weight ◽  
Soluble Carbohydrates ◽  
Wheat Crop ◽  
Aqueous Extracts ◽  
Wild Oat ◽  
Culture Experiment ◽  
Allelopathic Potential ◽  
Root Extracts ◽  
Wheat Germination ◽  
Radical Length

We investigated the phytotoxicity of desert cotton (Aerva javanica) extracts on wild oat and wheat. Aqueous extracts from A. javanica roots, leaves and inflorescences collected from Jeddah and Al-Baha regions, Saudi Arabia were used. Generally, the allelopathic potential of water extracts of A. javanica collected from Jeddah were more in inhibitory to wild oat germination and seedlings growth than those from Al-Baha. In both regions, root extracts were inhibitory to wild oat followed by leaves and inflorescences extracts. All test aqueous extracts of both regions did not inhibit the wheat germination or seedlings growth.Whreas, the wild oat germination was reduced by root extracts 58.62 %, 28.62 % leaves extracts : 32.72 %, 17.72 % and inflorescences extract 28.11 %, 12.13 % by in plants samples collected from Jeddah and Al-Baha, respectively. Wild oat radical length was inhibited by root extracts 53.27 %, 32.84 % leaves 42.35 %, 9.63 % and inflorescences extracts 22.64 %, 16.75 % in case of Jeddah and Al-Baha plants, respectively. In pot culture experiment, all treatments markedly reduced the plant dry weight and soluble carbohydrates, proteins and free amino acids contents in wild oat. The differences in the allelopathic potentials of studied A. javanica extracts were related to the qualitative variations in their phytochemicals constituents. Our results showed that A. javanica extracts could be safely used to control wild oat growth in wheat fields after more detsaled research..

scholarly journals Induction of Somatic Embryogenesis in Vulnerable Medicinal Plant Hedychium spicatum Buch-Ham ex Smith

2014 ◽  
Vol 23 (2) ◽  
pp. 147-155 ◽  
Author(s):  
Dinesh Giri ◽  
Sushma Tamta
Keyword(s):  
Somatic Embryogenesis ◽  
Medicinal Plant ◽  
Somatic Embryos ◽  
Synthetic Seeds ◽  
Ex Situ ◽  
Secondary Embryogenesis ◽  
Zygotic Embryos ◽  
High Concentration ◽  
Cotyledon Explants ◽  
Short Period

This protocol has been developed for somatic embryogenesis in Hedychium spicatum. Simultaneously, a method has also been developed for the production of synthetic seeds by using somatic embryos. Direct somatic embryos were developed on cotyledon explants of zygotic embryos on MS supplemented with high concentration of NAA (20.0 µM). Induction of secondary embryogenesis was best in 2,4-D supplemented medium fortified with activated charcoal. Germination of somatic embryos was enhanced by using GA3. Besides this, round and semi-hard beads of somatic embryos (synthetic seeds) could be produced by using 2% Na-alginate and 100 mM calcium chloride and more than 30% germination of synthetic seeds was achieved in MS. Well acclimated plants produced via somatic embryogenesis and/or synthetic seeds were transferred to field where more than 60% survived. This simple study enabled us to obtain a number of plantlets throughout the year each cycle requiring a short period of time. Besides propagation, this study provided an ex situ method for conservation of this vulnerable Himalayan species.D. O. I.http://dx.doi.org/10.3329/ptcb.v23i2.17506Plant Tissue Cult. & Biotech. 23(2): 147-155, 2013  (December)

scholarly journals Effect of Different Combinations of Panchagavya on Plant Yield

2019 ◽  
Vol 9 (2S2) ◽  
pp. 8-11
Keyword(s):  
Growth Rate ◽  
Organic Fertilizer ◽  
Maximum Yield ◽  
The Other ◽  
Growth Study ◽  
Seed Vigour ◽  
Plant Yield ◽  
Tender Coconut Water ◽  
Vigour Index ◽  
Tender Coconut

Use of organic fertilizer is being promoted as the sustainable method of agriculture for maximizing yield. In this study the six different combinations of Panchagavya are prepared and laboratory growth study is made using seed. Vigour index is used for quantifying growth rate of seeds. Result indicates that 500ml of tender coconut water added to the control combination gives maximum yield. The efficacy of the optimal Panchagavya combination from the lab study is applied to the field directly yielding much higher growth than the other methods used by the farmers.

scholarly journals GERMINATION AND SEEDLING GROWTH OF SILYBUM MARIANUM AS A MEDICINAL PLANT UNDER SALINITY STRESS

2019 ◽  
pp. 25-38
Author(s):  
M. A. Dorri ◽  
B. Kamkar ◽  
M. Aghdasi ◽  
A. R. Safahani
Keyword(s):  
Medicinal Plant ◽  
Seedling Growth ◽  
Block Design ◽  
Germination Percentage ◽  
Milk Thistle ◽  
Tolerance Index ◽  
Root Weight ◽  
Silybum Marianum ◽  
Nacl Concentration ◽  
Salinity Levels

Milk thistle (Silybum marianum) is used as a medicinal plant in the treatment of liver diseases. In order to investigate germination and seedling growth in S. marianum subjected to NaCl, a three replicated experiment was carried out in a randomized complete block design in the laboratory of Gorgan University of Agricultural Sciences and Natural Resources. Treatments included seven salinity levels (50, 75, 100, 125, 150, 175 and 200 mM) and a control (distilled water). Germination percentage (GP), mean germination time (MGT), seed-ling vigour index (SVI), shoot, root and seedling weight were measured. The effect of salinity levels was significant on GP, SVI, MGT and seedling weight and length (p ≤ 0.01). However, the NaCl concentration effect was not significant on shoot : root length ratio and or shoot : root weight ratios. Results showed that germination decreased when salinity increased, while MGT increased. MGT was 1.75 times higher than in the control at the highest salt concentration. MGT difference was not significant between 75 mM NaCl and con-trol, while it dramatically increased by increasing the NaCl concentration from 150 to 200 mM NaCl. Reduc-tion slope and salt tolerance index (STI) were estimated for germination (0.54 and 231.9) and seedling stage (0.24 and 237.4). According to the results, milk thistle could be considered as a valuable medicinal plant in fairly salinized areas.

scholarly journals Germination and initial development of canola and radish submitted to castor leaves aqueous extracts

2016 ◽  
Vol 7 (1) ◽  
pp. 104
Author(s):  
Carlos Alberto Gonsiorkiewicz Rigon ◽  
Adriana Tourinho Salamoni ◽  
Luan Cutti ◽  
Adalin Cezar Morais de Aguiar
Keyword(s):  
Seed Germination ◽  
Castor Bean ◽  
Ricinus Communis ◽  
Initial Growth ◽  
Aqueous Extracts ◽  
Brassica Napus L ◽  
Initial Development ◽  
Allelopathic Potential ◽  
Ricinus Communis L ◽  
Radish Seed

This study aimed to evaluate the allelopathic activity of aqueous extracts of castor bean (Ricinus communis L.) leaves on germination and initial growth of canola (Brassica napus L.) and radish (Raphanus sativus L.) seedlings. Two experiments were conducted, usingcanola seeds for the first, which was installed in a 2x7 factorial scheme (with two photoperiods – dark and light and seven extracts concentrations - 0, 1, 2, 4, 8, 16 and 32%). The second experiment consisted of an evaluation of radish seed germination submitted to seven concentrations of the extracts in the dark photoperiod. The germination of the canola seeds was reduced in the dark, and the use of extracts at concentrations of 16% and 32%inhibited seeds germination for both studied photoperiods. The radish seed germination was completely inhibited when the concentration of 32% was used, however, at the concentrations of 4, 8 and 16% a reduction on rootand hypocoyl development of the seedlings were observed, affirming the high allelopathic potential of castor bean aqueous extracts on canola and radish.

scholarly journals Primary Metabolites Profiling of Vetiveria Lawsonii from Leaf and Root

2019 ◽  
Vol 9 (4-A) ◽  
pp. 373-375
Author(s):  
Anuradha Gauttam ◽  
Nakuleshwer Dutt Jasuja ◽  
Rakesh Kumar
Keyword(s):  
Medicinal Plant ◽  
Soluble Sugar ◽  
Soxhlet Extraction ◽  
High Concentration ◽  
Primary Metabolites ◽  
Total Soluble Sugar ◽  
Medicinal Value ◽  
Quantitative Extraction ◽  
Poaceae Family ◽  
Ethanol Extracts

Various traditional systems of medicine enlightened the importance of Indian plants to have a great medicinal value. The present study was aimed to evaluate the Primary Metabolites study of Vetiveria lawsonii, belong to Poaceae family. Extracts were prepared in methanol, ethanol by Soxhlet extraction. Quantitative extraction of preliminary phytochemicals investigation revealed the presence of Carbohydrates (Starch and Total Soluble Sugar), Lipid, Proteins, and Phenol by using UV spectrometer. Experimental medicinal plant Vetiveria lawsonii are showing high concentration of primary metabolites. Hence, we can conclude that the methanol and ethanol extracts of Vetiveria lawsonii was possess primary metabolites. Keywords: - Vetiveria lawsonii; Primary Metabolites.

scholarly journals EFECTO ALEPOPÁTICO DE TRES EXTRACTOS VEGETALES SOBRE EL DESARROLLO DE RAPHANUS SATIVUS (BRASSICACEAE) EN EL PERÚ

2019 ◽  
pp. 1-3
Keyword(s):  
Raphanus Sativus ◽  
Allium Sativum ◽  
Dry Weight ◽  
Persea Americana ◽  
Allelopathic Effect ◽  
Aqueous Extracts ◽  
Ruta Graveolens ◽  
Allelopathic Potential ◽  
Raphanus Sativus L ◽  
Water Treatments

EFECTO ALEPOPÁTICO DE TRES EXTRACTOS VEGETALES SOBRE EL DESARROLLO DE RAPHANUS SATIVUS (BRASSICACEAE) EN EL PERÚ ALLELOPATHIC EFFECT OF THREE PLANTS EXTRACTS ON THE DEVELOPMENT OF RAPHANUS SATIVUS (BRASSICACEAE) IN PERÚ Hildebrando Ayala & Rafael La Rosa DOI: https://doi.org/10.33017/RevECIPeru2007.0007/ RESUMEN El uso de plantas con actividad alelopática en la actualidad resulta de gran importancia  porque nos permite el desarrollo de una agricultura rentable y no contaminante del medio ambiente. El objetivo de este trabajo fue estudiar la acción de extractos acuosos de ajo (Allium sativum L, Liliaceae), palta (Persea americana Mill, Lauraceae) y ruda (Ruta graveolens L, Rutaceae) sobre el desarrollo de la hortaliza rabanito (Raphanus sativus L, Brassicaceae). Los extractos se prepararon a partir de bulbos de A. sativum, semilla de P. americana y hojas y flores de R. graveolens a los cuales triturados se le adiciona agua hervida. Los tratamientos fueron extractos puros al (20% p/v). El diseño fue completamente aleatorizado con 4 repeticiones. Se determino peso fresco (g), peso seco (g), longitud de raíz (cm), longitud área (cm) y área foliar(cm2). Los datos se analizaron mediante ANOVA y Test de Tukey para la comparación de medias. Los resultados alcanzados muestran de que no existe efectos significativos en comparación con el control, del potencial alelopático de los extractos acuosos evaluados bajo condiciones controladas. Palabras claves: Extractos acuosos, semillas, hojas, flores, bulbos, Allium sativum, Persea americana, Ruta graveolens. ABSTRACT The use of plants with allelopathic activity nowadays is very important because it allows us to develop a profitable agriculture and non-polluting the environment. The objective of this work was to study the action of aqueous extracts of garlic (Allium sativum L, Liliaceae), avocado (Persea americana Mill, Lauraceae) and rough (Ruta graveolens L, Rutaceae) on the development of vegetable radish (Raphanus sativus L, Brassicaceae). The extracts were prepared from A. sativum bulbs, P. americana seeds and R. graveolens leaves and flowers to which he adds crushed boiled water. Treatments were the pure extracts (20% w / v). The design was completely randomized with 4 repetitions. It was found fresh weight (g), dry weight (g), root length (cm) long area (cm) and leaf area (cm2 ). The data was analyzed with Anova and Tukey test for the comparison of averages. The results show that there is no significant effects compared to the control of allelopathic potential of aqueous extracts tested under controlled conditions. Keywords: Aqueous extracts, seed, leaves, flowers, bulbs, Allium sativum, Persea americana, Ruta graveolens.

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