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 Effect of some botanical fungicide and chemicals as forest seed dressing  on the quality of the seeds: تأثير بعض مبيدات الفطريات والكيمياويات النباتية في تلبيس بذور الغابات  على جودة البذور

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Shler Hassan Mahmood, Jalal Hama Salih Ismael
Keyword(s):  
Seed Germination ◽  
Root Length ◽  
Germination Percentage ◽  
Shoot Length ◽  
Salix Alba ◽  
Seed Dressing ◽  
Number Of Leaves ◽  
Petri Plate ◽  
Local Plants ◽  
The University

An experiment was conducted to study the antifungal activity of different concentrations aqueous extracts from three local plants, Hypericum triquetrifolium, Salix alba, Salvia rosmarinus and also different concentrations of fungicide (Captan) and Salicylic acid were evaluated for their efficacy as seed dressing on Catalpa and Albizia that seeds were soaked separately for 30 mints in various concentrations of aqueous extract and fungicide. Forest seeds were grown in pots which were inoculated by Sclerotinia sclerotiorum and Fusarium oxysporum that one petri plate/ pot in 2018 in a greenhouse at the University of Sulaimani–College of Agricultural Sciences Engineering. The results showed that seed germination percentage, shoot length, root length and number of leaves was significantly (p≤0.05) increased with both the treatments. Captan (0.5%) was more effective in comparison with Captan (0.3%) and seed germination, shoot length, root length and number of leaves was gradually increased with increase of the doses of fungicides. It can be suggested that fungicide Captan have antifungal effect and can be used to treat seed against seed borne pathogens of forest, increase seed germination and shoot length, root length and number of leaves.

scholarly journals Effect of Coconut Water on Pre-Sowing Treatments Additive on Seed Germination and Initial Seedlings Growth Performance of Kamagong (Diospyros discolor)

2020 ◽  
pp. 58-71
Author(s):  
Marne G. Origenes ◽  
Renato L. Lapitan
Keyword(s):  
Seed Germination ◽  
Growth Performance ◽  
Germination Percentage ◽  
Mean Value ◽  
Coconut Water ◽  
Leaf Width ◽  
Indigenous Species ◽  
Initial Growth ◽  
Seedling Height ◽  
Number Of Leaves

Mabolo (Diospyros discolor), which is an indigenous species locally known as Kamagong, is popularly called “iron-wood”. With over-exploitation, these species are now threatened and are becoming extinct. Hence, it is the only way to conserved and save this economically valuable species by using nursery techniques with appropriate pre-sowing treatments. Therefore, the present study was attempted to evaluate the effect of coconut water on pre-sowing treatments additive on seed germination and initial growth performance of Kamagong (D. discolor). The seeds were extracted and subjected to the following treatments for 12 hours: Soaking in 100% water which is the control (T1), soaking with 50% of coconut water and 50% water (T2), and soaking in 100% coconut water (T3). The results showed that T3 had the highest germination mean value (78.33%), mean seedling height (11.80 cm) and mean number of leaves (2.04). By contrast, T2 (50% coconut water + 50% water) obtained the least germination mean value (76.67%), mean seedling height (11.63 cm) and mean number of leaves (2.00). However, there were no significant differences in the germination percentage, seedling height and number of leaves among all treatments at (p ≤ 0.05). The seeds subjected to T2 and T3 were significantly (p ≤ 0.05) better than seeds subjected to T1, having a mean root collar diameter (RCD) value of 3.98 mm, 3.75 mm and 3.48 mm, respectively. In terms of leaf measurements, the seedlings subjected to T2 and T3 had the highest leaf width value of 5.18 cm and 4.97 cm, respectively, whereas the seedlings subjected to T1 had the significantly lowest leaf width of 4.88 cm. Moreover, there was no significant effect among all treatments in terms of leaf and root length. Furthermore, it was observed in the study that fungal pathogens should also be taken into account as the pathogens are associated with the reduction of the germination percentage of the D. discolor seeds. Also, the study found out that seeds treated with 50% and 100% coconut water positively influenced the germination and initial seedling growth performance of D. discolor.

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 Impact of Biochar Application on Germination Behavior and Early Growth of Maize Seedlings: Insights from a Growth Room Experiment

2021 ◽  
Vol 11 (24) ◽  
pp. 11666
Author(s):  
Liaqat Ali ◽  
Wang Xiukang ◽  
Muhammad Naveed ◽  
Sobia Ashraf ◽  
Sajid Mahmood Nadeem ◽  
...  
Keyword(s):  
Seed Germination ◽  
Germination Rate ◽  
Chemical Properties ◽  
Germination Percentage ◽  
Application Rate ◽  
Early Growth ◽  
Control Treatment ◽  
Positive Effects ◽  
Dry Biomass ◽  
Growth Room

Reduced germination and early crop maturity due to soil compaction, nutrients stress, and low moisture are major constraints to achieve optimum crop yield, ultimately resulting in significant economic damages and food shortages. Biochar, having the potential to improve physical and chemical properties of soil, can also improve nutrients and moisture access to plants. In the present study, a growth room experiment was conducted to assess biochar influence on maize seed germination, early growth of seedlings, and its physiological attributes. Corn cob biochar (CCB) was mixed with soil at different rates (0.5%, 1%, 1.5%, 2%, 2.5%, and 3% w/w) before seed sowing. Results obtained showed that increasing CCB application rate have neutral to positive effects on seed germination and seedling growth of maize. Biochar addition at the rate of 1.5% (w/w) significantly increased shoot dry biomass (40%), root dry biomass (32%), total chlorophyll content (a and b) (55%), germination percentage (13%), seedling vigor (85%), and relative water content (RWC) (68%), in comparison to un-amended control treatment. In addition to this, it also improved germination rate (GR) by 3% as compared to control treatment, while causing a reduction in mean emergence time (MET). Moreover, application of biochar (3%) also resulted in enhancement of antioxidant enzyme activity, particularly superoxide dismutase (SOD) and catalase (CAT) by 13% and 17%, respectively. Conclusively, biochar application is an attractive approach to improve the initial phase of plant growth and provide better crop stand and essential sustainable high yields.

scholarly journals Optimal temperature for germination and seedling development of cowpea seeds

2020 ◽  
Vol 14 (2) ◽  
Author(s):  
Juliane Rafaele Alves Barros ◽  
Francislene Angelotti ◽  
Jéssica De Oliveira Santos ◽  
Rodrigo Moura e Silva ◽  
Barbara França Dantas ◽  
...  
Keyword(s):  
Seed Germination ◽  
Germination Percentage ◽  
Seedling Development ◽  
Optimal Temperature ◽  
Cowpea Cultivars ◽  
Cowpea Seeds ◽  
Germination Process ◽  
Germination Speed ◽  
Increasing Temperature ◽  
Climatic Elements

Temperature is one of the climatic elements that affect most the germination process and seedling development. Thus, the objective of this study was to evaluate the germination and seedling development of cowpea cultivars under increasing temperature. The seeds of the cultivars Acauã, Carijó, Guariba, Gurguéia, Itaim, Juruá, Pajeú, Potengi, Pujante, Rouxinol, Tapahium, and Tumucumaque were kept in germination chamber at temperatures of 20, 25, 30, 35 and 40°C, with photoperiod of 12 h. Cowpea seeds have optimal germination performance and seedling development at temperatures in the range of 30.49 - 35.48°C. The cultivars presented germination percentage above 91% under 40°C, however, the seedling were abnormal. The temperature of 20°C provided germination above 96%, but with a longer period to germinate. The temperature range between 30 - 35°C favored the germination speed index, average time, and seed germination speed, with optimum temperatures varying between the cultivars. The highest rate of normal seedlings was observed at temperatures between 25 and 35°C.

scholarly journals Morfología de semilla, germinación y desarrollo postemergente de tres especies del género Polianthes L. (Agavaceae)

2017 ◽  
pp. 55
Author(s):  
Héctor Serrano-Casas ◽  
Eloy Solano-Camacho ◽  
Adelaida Ocampo-López
Keyword(s):  
Seed Germination ◽  
Seed Dormancy ◽  
Seed Viability ◽  
Germination Percentage ◽  
Seed Morphology ◽  
Seedling Development ◽  
The Other ◽  
Viability Test ◽  
Other Hand ◽  
Germination Process

The seed germination process and seedling development were studied for Polianthes geminiflorn (Lex.) Rose var. geminiflom, Polianthes sp . and P. longiflom Rose. The seed viability test estimated was from 94 to 100%. In seeds treatment by soaking the seeds in water at 25ºC during three, six and twelve hours, the germination percentage, velocity and germination uniformity were increased like control assay. On the other hand, P geminiflorn var. geminiflora. were more resistent than Polianthes sp. and P.  longiflora. seeds to a treatment of three, six and twelve hours in water a t 40ºC. The three species had epigeal germination and their cotyledon developed a haustorium. None of this species exhibited seed dormancy and they were orthodox. There were significant differences in the first leave length between the three species. The seed morphology, germination behavior and seedlings development were very similar.

scholarly journals Effect of Pre-Sowing Treatments on Seed Germination and Seedling Growth of Silver Butterfly Tree (Bauhinia rufescens)

2018 ◽  
Vol 6 (3) ◽  
pp. 344-354
Author(s):  
J. A. Opoku ◽  
J. N. Amissah ◽  
M. E. Essilfie ◽  
J. C. Norman
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Growth Regulator ◽  
Tap Water ◽  
Germination Rate ◽  
Germination Percentage ◽  
Hot Water ◽  
Root Weight ◽  
Number Of Leaves ◽  
Shoot Weight

Three experiments were conducted in a plastic greenhouse at the Sinna Garden of the Crop Science Department of the University of Ghana, Legon, Accra to investigate into pre-sowing treatment (water treatment, growth regulator, and sulphuric acid scarification and water soaking) effects on seed germination and seedling growth of Bauhinia rufescens from October to December, 2011 and January to April, 2012, respectively. The experimental design used was complete randomized design. There were 4 treatments in experiment 1, 7 in experiment 2 and 6 in experiment 3. Each experiment was replicated five (5) times. The results showed that Bauhinia rufescens seeds soaked in hot water at 65 0 C for 60 minutes gave the highest mean germination rate, tallest plant height and highest number of leaves per plant at 49 days after soaking. It also had the widest stem diameter, highest fresh shoot and root weight, highest fresh root and dry root weight and number of roots per seedling. Seeds soaked in 500 ppm Gibberelic acid(GA3) produced the highest number of leaves per plant and tallest plants at 49 DAS. Seeds soaked in 750 ppm GA3 had the highest number of leaves per plant at 49 DAS and highest fresh shoot weight. Seeds soaked in 1000 ppm Promalin differed significantly from 500 ppm GA3 and the control in germination percentage. Seeds soaked in 1000 ppm Promalin differed significantly from 500 ppm GA3 and the control in germination percentage. Acid scarified seeds for 60 minutes plus soaking in tap water for 24 hours differed significantly from the seeds treated withother growth regulator rates plus 24 hours soaking in germination percentage. Acid scarified seeds for 45 minutes plus soaking in tap water for 24 hours had the tallest plant and highest number of leaves per plant at 49 DAS, widest stem diameter, highest fresh shoot and root weight and dry shoot weight. Soaking seeds in hot water at 65 0 C for 60 minutes and/or in acid (H2SO4) for 45 minutes plus soaking in tap water for 24 hours is recommended as pre-sowing treatment for Bauhinia rufescens for maximum mean germination rate and vigorous vegetative growth of seedlings.

scholarly journals SEED GERMINATION AND RADICLE ESTABLISHMENT RELATED TO TYPE AND LEVEL OF SALT IN COMMON BEAN (PHASEOLUS VULGARIS L. VAR. DJEDIDA)

2019 ◽  
Vol 52 (3) ◽  
pp. 262-277
Author(s):  
L.M. MANSOURI ◽  
N. HELEILI ◽  
Z.F. BOUKHATEM ◽  
A. KHELOUFI
Keyword(s):  
Phaseolus Vulgaris ◽  
Seed Germination ◽  
Common Bean ◽  
Seedling Growth ◽  
Dry Weight ◽  
Germination Percentage ◽  
Phaseolus Vulgaris L ◽  
Randomized Design ◽  
Dry Biomass ◽  
Secondary Roots

Saline soils contain multiple types of salt, each of them may exert a different effect on seed germination and seedling growth. The aim of this study is to assess the effects of five types of salt on the seed germination and radicle establishment of common bean (Phaseolus vulgaris L. var. Djedida). The experiment was set out as a factorial experiment based on completely randomized design with four replications of ten seeds for the seed germination and twelve replicates for the seedling growth. We used five kinds of salts (NaCl, Na2SO4, CaCl2, CaCO3 and KCl) with concentrations of 0, 100, 200 and 300 mM. Seeds were incubated in Petri dishes at 25°C, in the dark, for 10 days. The results of analysis of variance indicated that the effects of salt types and concentrations, and their interaction effect were significant in all measured traits (P< 0.01). However, no significance effect was found on secondary roots number and seedlings dry biomass with CaCO3 treatment solution. According to the results, the inhibitory effects of the five salt types differed significantly. Indeed, germination of common bean seeds by various salts were in the order of NaCl > KCl > CaCO3 > Na2SO4 > CaCl2. However, the taproot length, the number of secondary roots and the seedlings dry weight by various salts were in the order of CaCO3 > KCl > NaCl > CaCl2 > Na2SO4. The effect of salt concentration was also obvious. The reduction in dry biomass of cotyledons is proportional to germination rates and to the development of seedlings in dry biomass and in size. Seeds of P. vulgaris var. Djedida were able to germinate under all concentrations of the various types of salt. The lowest final germination percentage (FGP) was obtained under 300 mM of all salts recording the following values: CaCO3 - 60%, NaCl - 60%, KCl - 52.5%, Na2SO4 - 50% and CaCl2 - 27.5%. During germination stage, the radicle emergence would be controlled by the environment osmolarity, while the later growth of the seedling would be limited by the reserve mobilization.

scholarly journals LACK OF EFFECT OF PRETREATMENT ON THE VIABILITY OF MACADAMIA (Macadamia integrifolia) SEED

2013 ◽  
Vol 3 (2) ◽  
pp. 58 ◽  
Author(s):  
Maharani Hasanah ◽  
Sukarman Sukarman ◽  
Devi Rusmin ◽  
Devi Rusmin
Keyword(s):  
Seed Germination ◽  
Seed Viability ◽  
Germination Percentage ◽  
Macadamia Integrifolia ◽  
Randomized Design ◽  
Dehydrogenase Enzyme ◽  
Number Of Leaves ◽  
Completely Randomized Design ◽  
Good Quality Seed ◽  
Dehydrogenase Enzyme Activity

One problem in developing macadamia in Indonesia is the limited availability of good quality seed. Viability of the seed is easily lost and erratic, and the seed has long dormancy periods. The objective of the study was to find a method for enhancing germination percentage of macadamia seed. The study evaluated different pretreatments of macadamia seeds before planting. The pretreatments were period of fermentation, i.e., 0, 1, 2, 3, 4, 5, 6, and 7 daysone day each soakingdrying-soakingone day each drying-soaking-dryingand alternate drying-soaking until the seeds were cracked. The treatments were arranged in completely randomized design. Results showed that no treatment significantly affected percentage of seed germination, index of speed of germination, number of leaves, and dehydrogenase enzyme activity, but treatments significantly affected seedling height and electric conductivity of seed leakage solution. Seed germination percentage ranged from 66.67 to 86.67.

scholarly journals The pattern of germination of teak mistletoe seeds in relation with parasitism

2021 ◽  
Vol 918 (1) ◽  
pp. 012034
Author(s):  
Z Muttaqin ◽  
W B Sri ◽  
W Basuki ◽  
I Z Siregar ◽  
Corryanti
Keyword(s):  
Life Cycle ◽  
Seed Germination ◽  
Germination Percentage ◽  
Standing Tree ◽  
Research Results ◽  
Germination Process ◽  
Tree Stem ◽  
Bird Feces

Abstract The objectives of this research are to test the initial viability and germination pattern of teak mistletoe seeds, namely Dendrophthoe pentandra and Macrosolen tetragonus in associated with parasitism. Research results showed that the pattern of D. pentandra germination was different from that of M. tetragonus. The germination process of D. pentandra showed incomplete development of germination morphology, marked by an absence of development or growth of hypocotyl and cotyledon. Parasitism was more dominant in D. pentandra, supported by the fact that the sum of mean germination day (RH) in the stem of teak seedling was faster (17.54±2.77 days), as compared with that of M. tetragonus (35.13±1.76 days), although mortality of M. tetragonus seedlings was very low (±3%), whereas that of D. pentandra was fairly high (±34%). It was related to the life cycle of M. tetragonus, which was longer than that of D. pentandra. In the attachment of seeds in the standing tree stems, it was proven that the germination percentage (%K) of D. pentandra (38.5%) was higher than that of M. tetragonus (11.1%). Seed germination of D. pentandra from bird feces also showed that %K (46.4%) was higher than seed attachment in tree stem, including M. tetragonus. It was supposed that there was a correlation between the easiness of germination and parasitism character in teak mistletoes. It was considered that parasitism of D. pentandra was more prominent than that of M. tetragonus in a teak host.

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