scholarly journals Biostimulant Effects of Cerium on Seed Germination and Initial Growth of Tomato Seedlings

Agronomy ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1525
Author(s):  
Orlando Sobarzo-Bernal ◽  
Fernando Carlos Gómez-Merino ◽  
Gabriel Alcántar-González ◽  
Crescenciano Saucedo-Veloz ◽  
Libia I. Trejo-Téllez
Keyword(s):  
Seed Germination ◽  
Priming Effect ◽  
Shoot Length ◽  
Germination Index ◽  
Initial Growth ◽  
Relative Growth ◽  
Tomato Seedlings ◽  
Solanum Lycopersicum L ◽  
Dry Biomass ◽  
Coefficient Of Velocity

The rare earth element (REE) cerium (Ce) can act as a biostimulant in diverse crop plants. The effects of 0, 5, 10, and 15 µM Ce (supplied as CeCl3 7H2O) on seed germination and the initial growth of tomato (Solanum lycopersicum L.) cv. Vengador were evaluated. After a 12 h imbibition, the weight of the seeds treated with 15 µM Ce was 37.5% greater than that observed in the control. The germination index of the seeds treated with 5 µM Ce was greater than 100% (101.93%), though when applying 10 µM Ce this index was 17.53% lower than the control seeds. Nevertheless, Ce treatments did not significantly affect the coefficient of velocity of germination, relative seed germination, germination index, radicle length, dry biomass, or relative growth. Interestingly, shoot length increased significantly in the treatments with 5, 10, and 15 µM Ce. This tendency was also observed in the dry biomass weight and relative growth of the shoots. Hence, Ce has a stimulating effect on germination and initial growth in tomato cv. Vengador shoots. In particular, there was a priming effect of Ce on seeds, reflected in a higher weight gain in Ce-treated seeds, which indicated greater water absorption. Therefore, Ce can be an alternative to accelerate the production time of tomato seedlings in seedbeds.

scholarly journals Vanadium stimulates growth and flower production in tomato without affecting seed germination

2021 ◽  
Vol 49 (4) ◽  
pp. 12400
Author(s):  
Atonaltzin GARCÍA-JIMÉNEZ ◽  
Libia I. TREJO-TÉLLEZ ◽  
María G. PERALTA SÁNCHEZ ◽  
Adriana CONTRERAS-OLIVA ◽  
Fernando C. GÓMEZ-MERINO
Keyword(s):  
Seed Germination ◽  
Germination Percentage ◽  
Beneficial Element ◽  
Horticultural Crops ◽  
Solanum Lycopersicum L ◽  
Germination Process ◽  
Dry Biomass ◽  
Cultivated Species ◽  
Number Of Leaves ◽  
Treatment Application

Vanadium (V) is easily absorbed by plants and has been proposed as a novel beneficial element and inorganic biostimulant, since at low doses it can enhance plant metabolism. However, its effects on the biology of cultivated species have not been fully explored. Therefore, we evaluated the effect of V on tomato (Solanum lycopersicum L.) during seed germination and initial seedling growth. We tested 0, 5, 10, and 15 µM V in seeds during the germination process and in 37-day-old plants over four weeks. The application of V did not alter seed germination percentage. Plant height increased with the application of 5 µM V at 21 days after treatment application (DAT), while root volume increased with the application of 10 µM V at 28 DAT. Stem diameter, number of leaves, and number of flower buds showed the highest values with 10 µM V, while 5 µM V produced higher means in number of leaves as well as fresh and dry biomass weight of flowers. However, the fresh and dry biomass of leaves, stems, and roots decreased significantly with the application of 15 µM V. The total concentrations of amino acids and sugars in leaves, stems, and roots decreased in the treatments with V. We conclude that V is a beneficial element with high potential to be used in the biostimulation of horticultural crops such as tomato.

scholarly journals Allelopathic potential and chemical characterisation of ‘flor-de-papagaio’ bark (Norantea guianensis)

2021 ◽  
Vol 43 ◽  
pp. 53-63
Author(s):  
Ademir Kleber Morbeck de Oliveira ◽  
Rosemary Matias ◽  
Kelly Cristina Lacerda Pereira ◽  
Elvia Silvia Rizzi ◽  
Jéssica de Araújo Isaías Muller
Keyword(s):  
Phenolic Compounds ◽  
Seed Germination ◽  
Seedling Development ◽  
Initial Growth ◽  
Allelopathic Potential ◽  
Negative Interference ◽  
Tomato Seedlings ◽  
Tomato Seeds ◽  
Ethanolic Extracts

El objetivo fue llevar a cabo la prospección fitoquímica de la cáscara de Norantea guianensis y evaluar su potencial alelopático en la germinación de semillas y el crecimiento inicial de plántulas de lechuga y tomate, utilizando extractos acuosos y etanólicos. Se identificaron compuestos fenólicos y sus derivados, flavonoides y taninos, así como cumarinas, antraquinonas, alcaloides y saponinas. Se produjo interferencia negativa en la germinación y el vigor, especialmente en las semillas de tomate, y los extractos afectaron negativamente el desarrollo de las plántulas. La especie N. guianensis tiene la capacidad de interferir en el desarrollo de otras plantas y por esta razón, su uso debe evaluarse cuidadosamente. The purpose of thisstudy was to carry out phytochemical prospecting of Norantea guianensis bark and to evaluate its allelopathic potential in seed germination and the initial growth of lettuce and tomato seedlings using aqueous and ethanolic extracts. We identified phenolic compounds and derivatives, flavonoids, and tannins, as well as coumarins, anthraquinones, alkaloids, and saponins. Negative interference was observed in germination and vigour tests, mainly in tomato seeds, with extracts negatively affecting seedling development. The species N. guianensis has the ability to interfere in the development of other plants, and for this reason, its use should be carefully evaluated.

scholarly journals Bioregulators on seed germination and seedling growth of sweet basil

2020 ◽  
Vol 11 ◽  
pp. e3324
Author(s):  
Larissa Santos Castro ◽  
Danúbia Aparecida Costa Nobre ◽  
Daniel Andrés Villegas Hurtado ◽  
Willian Rodrigues Macedo
Keyword(s):  
Seed Germination ◽  
Gibberellic Acid ◽  
Germination Rate ◽  
Ocimum Basilicum ◽  
Shoot Length ◽  
Naphthalene Acetic Acid ◽  
Initial Growth ◽  
Randomized Design ◽  
Root And Shoot Length ◽  
Completely Randomized Design

Basil (Ocimum basilicum L.) plants have multiple uses, ranging from spice to cosmetic purpose, besides being a source of essential oil and aromatic. These plants were commonly propagated by seed, however, few agrotechnologies are used to enhance the seed germination and initial growth in this crop. For this reason, our research aimed to evaluate aspects of seed germination of Ocimum basilicum L. cv. Limoncino, subjected to different bioregulators applied via substrate imbibition. The experiment was carried out in completely randomized design, with four treatments, as follows: T1: control (distilled water), T2: T13 a solution of a product formulated based on indolbutyric acid + naphthalene acetic acid + gibberellic acid (0.2 mL L-1, Liko Química), T3: gibberellic acid (0.5 mM L-1, progibb-400®) and T4: brassinosteroids (0.1 mM L-1). We evaluated: germination rate, germination speed index (GSI), first count, root and shoot length and chlorophyll a, b, total and carotenoids. The bioregulators did not influence germination, first count, GSI and photosynthetic leaf pigment, but application of gibberellic acid and brassinosteroids improve the shoot and root length, respectively. The gibberellic acid and brassinosteroids are promising bioregulators for stimulating initial basil growth.

Germination and Growth Behaviour of Seedlings of Emblica ofƒicinalis Gaertn under Different Light and Nutrient Regimes in Field Conditions

2016 ◽  
Vol 4 (2) ◽  
pp. 98-104
Author(s):  
Laishram Lilabati ◽  
◽  
U.K. Sahoo
Keyword(s):  
Seed Germination ◽  
Root Length ◽  
Growth Parameters ◽  
Shoot Length ◽  
The Body ◽  
Initial Growth ◽  
Emblica Officinalis ◽  
Light Regimes ◽  
Number Of Leaves ◽  
Nutrient Conditions

Emblica officinalis Gaertn. is an important non-timber forest product plant which is known in improving livelihood of the people of north-east India. This plant is widely used in the Indian system of medicines and believed to increase the body immunity against diseases. A trial was made to assess the initial growth performance of seedlings of E. officinalis under three light regimes viz. Open-100% ambient sunlight (FAL), partial-80% ambient sunlight (PAL) and deep shade-40% ambient sunlight (DAL) and four nutrient conditions (NPK, saw dust biochar, cowdung and untreated) during a 3-months period in the Department of Forestry Mizoram University, Mizoram India. After 12 weeks of exposure to different light regimes and nutrient conditions, initial growth parameters of the seedlings like number of leaves, shoot length, root length, biomass and vigour index measured in order to understand the best growth conditions for the plant. The results reveal that seed germination and other growth parameters were significantly (P<0.05) influenced by light regimes and nutrient treatments. The seedling height, number of leaves, shoot length, root length and biomass was significantly higher under FAL. All growth parameters including seed germination were poor under DAL.

scholarly journals PHOTOSYNTHETIC INOCULANTS FOR PROMOTING SEED GERMINATION AND DEVELOPMENT OF TOMATO PLANTS

2021 ◽  
Vol 10 (20) ◽  
pp. 130-140
Author(s):  
Loredana-Mirela Sfîrloagă ◽  
Mihaela Croitoru ◽  
Aurelia Diaconu ◽  
Alina-Nicoleta Paraschiv ◽  
Ioan Ardelean
Keyword(s):  
Seed Germination ◽  
Agricultural Practices ◽  
Mineral Fertilizers ◽  
Health Issues ◽  
Tomato Seed ◽  
Tomato Plants ◽  
Tomato Seedlings ◽  
Dry Biomass ◽  
Plant Photosynthesis ◽  
Control Variant

Microalgae and cyanobacteria are a potentially sustainable alternative for the improvement and protection of agricultural crops. Mineral fertilizers raise environmental and health issues. and current agricultural practices depend to a large extent on the application of fertilizers and pesticides. In this study. we examined the effect of cyanobacteria and microalgae on tomato seed germination. seedling growth. green and dry biomass. gas exchange from leaves (plant photosynthesis and transpiration). and the chlorophyll content of leaves (chlorophyll a. b and carotene). as well as on the soil respiration process. The obtained results highlight higher values of green and dry biomass in the variants inoculated with cyanobacteria and microalgae compared to the control variant and comparable to the values obtained in the technologically fertilized variants. Tomato seedlings showed higher photosynthesis values compared to the control and compared to the technologically fertilized variant in the soil of the pea plot (7.06 μmol CO2 / m2 / s compared to 6.33μmol CO2 / m2 / s in the control variant and 7.06 μmol CO2 / m2 / s in the technologically fertilized version). And in the case of the soil in the museum plot. the values of photosynthesis in the version with the inoculum of cyanobacteria and microalgae were statistically assured compared to the control.

scholarly journals Yagya with Gayatri Mantra results in higher seed germination and seedling growth of Tritieum aestivm (wheat)

2019 ◽  
Vol 2 (1) ◽  
pp. 12-19 ◽  
Author(s):  
Ekta Chandel
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Germination Rate ◽  
Shoot Length ◽  
Systematic Research ◽  
Root And Shoot Length ◽  
Mean Germination Time ◽  
Coefficient Of Velocity ◽  
And Control ◽  
Germinated Seeds

To investigate the effect of yagya with Gayetri mantra on the seed germination and seedling growth of Tritieum aestivm, systematic research has been conducted on yagya in which effect of yagya fumes on seed germination has been observed. It has been reported that the germination rate index is 85.08% and 48.15% respectively in seeds that are kept in presence of yagya fumes and control ( in absence of yagya fumes) respectively  and coefficient of velocity of germination is 77.021% and 36.076% respectively in seeds kept in presence of yagya fumes and control. While mean germination time has been reported to be 1.29 days and 2.77 days respectively in seeds which were placed in presence of yagya fumes and control.  The germinated seeds were observed for seedling development and it has been found that the growth of root length and shoot length were 11.875 cm and 11.762 cm respectively in the germinated seeds which were kept in presence of yagya fumes while the growth of root and shoot length were 8.352 cm and 7.904 cm respectively in the germinated seeds that kept in absence of yagya fumes.

scholarly journals The Use of Electrostatic Field to Improve Soybean Seed Germination in Organic Production

Agronomy ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1473
Author(s):  
Zlatica Mamlic ◽  
Ivana Maksimovic ◽  
Petar Canak ◽  
Goran Mamlic ◽  
Vojin Djukic ◽  
...  
Keyword(s):  
Seed Germination ◽  
Electrostatic Field ◽  
Seed Quality ◽  
18Th Century ◽  
Soybean Seed ◽  
Organic Production ◽  
Initial Growth ◽  
Physical Treatment ◽  
Soybean Seedlings ◽  
Dark Green

Soybean production in the system of organic agriculture is not very demanding, and this has been well documented both through experimental results and commercial production. However, one of the biggest problems in organic production is the lack of adequate pre-sowing treatments. Therefore, the aim of this study was to examine the effect of the electrostatic field. This is a physical treatment that was first used for seed treatment in the 18th century but has mostly been neglected since then. Seeds of five soybean genotypes with differently colored seed coats (yellow, green, dark green, brown, and black) were included in this study. The seeds were exposed to different values of direct current (DC) with the following voltages: 0 V (control), 3 V, 6 V, and 9 V, to which the seeds were exposed for 0 min (control), 1 min, and 3 min. After exposing the seeds to the electric field, the physiological properties of seeds and seedlings at the first stage of growth were evaluated. The results show that the effect of the electrostatic field on seed quality depends on the genotype, voltage, and exposure time. The application of DC can be a suitable method for improving seed germination and the initial growth of soybean seedlings. In addition, the results indicate that it is necessary to adjust the DC treatment (voltage and duration of exposure of seeds) to particular genotypes since inadequate treatments may reduce the quality of seeds.

scholarly journals Effects of Non-Thermal Plasma Treatment on Seed Germination and Early Growth of Leguminous Plants—A Review

Plants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1616
Author(s):  
Božena Šerá ◽  
Vladimír Scholtz ◽  
Jana Jirešová ◽  
Josef Khun ◽  
Jaroslav Julák ◽  
...  
Keyword(s):  
Seed Germination ◽  
Plant Species ◽  
Thermal Plasma ◽  
Microbial Inactivation ◽  
Growth Stages ◽  
Agricultural Crop ◽  
Initial Growth ◽  
Total Production ◽  
Legume Seeds ◽  
Non Thermal Plasma

The legumes (Fabaceae family) are the second most important agricultural crop, both in terms of harvested area and total production. They are an important source of vegetable proteins and oils for human consumption. Non-thermal plasma (NTP) treatment is a new and effective method in surface microbial inactivation and seed stimulation useable in the agricultural and food industries. This review summarizes current information about characteristics of legume seeds and adult plants after NTP treatment in relation to the seed germination and seedling initial growth, surface microbial decontamination, seed wettability and metabolic activity in different plant growth stages. The information about 19 plant species in relation to the NTP treatment is summarized. Some important plant species as soybean (Glycine max), bean (Phaseolus vulgaris), mung bean (Vigna radiata), black gram (V. mungo), pea (Pisum sativum), lentil (Lens culinaris), peanut (Arachis hypogaea), alfalfa (Medicago sativa), and chickpea (Cicer aruetinum) are discussed. Likevise, some less common plant species i.g. blue lupine (Lupinus angustifolius), Egyptian clover (Trifolium alexandrinum), fenugreek (Trigonella foenum-graecum), and mimosa (Mimosa pudica, M. caesalpiniafolia) are mentioned too. Possible promising trends in the use of plasma as a seed pre-packaging technique, a reduction in phytotoxic diseases transmitted by seeds and the effect on reducing dormancy of hard seeds are also pointed out.

scholarly journals Initial growth and competitive ability of yellow nutsedge and irrigated rice

2013 ◽  
Vol 31 (4) ◽  
pp. 813-821 ◽  
Author(s):  
N.R. Westendorff ◽  
D. Agostinetto ◽  
A.R. Ulguim ◽  
A.C. Langaro ◽  
L. Thürmer
Keyword(s):  
Leaf Area ◽  
Competitive Ability ◽  
Growth Cycle ◽  
Rice Crop ◽  
Initial Growth ◽  
Rice Cultivars ◽  
Replacement Series ◽  
Irrigated Rice ◽  
Yellow Nutsedge ◽  
Dry Biomass

Weeds cause significant reduction in the irrigated rice crop yield. Cyperus esculentus (yellow nutsedge) is adapted to irrigate environment. Information on the competitive ability of the weed to the culture, and their environmental adaptation, are scarce. In this study, we sought to determine the initial growth and competitive ability of yellow nutsedge and irrigated rice, as a function of cultivar growth cycle. Initial growth and competition studies were conducted in a randomized complete design in a greenhouse in the agricultural year 2010/11. For the initial growth study, the treatments consisted of a factorial combination of a biotype of yellow nutsedge and two rice cultivars in the function of the vegetative cycle (BRS Querência: early cycle - IRGA 424: intermediate cycle) and six evaluation times (10, 20, 30, 40, 50, and 60 days after emergence). Were evaluated: plant height, leaf area, aboveground dry biomass and root dry biomass. In the competitive ability study in the replacement series, the cultivar BRS Querência (early cycle) and yellow nutsedge were utilized and tested in different proportions of competition (100:0, 75:25, 50:50, 25:75, and 0:100). Were evaluated leaf area and aboveground dry biomass. In general, rice cultivars have an adaptive value equivalent to yellow nutsedge. IRGA 424 cultivar has less height than weed, becoming the weed control more important in this cultivar. For rice crop, intraspecific competition is more important, whereas for the weed, interspecific competition is the most pronounced.

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