scholarly journals Effects of Zn2+ Stress on Seed Germination and growth of seedling

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Wenbin Liu ◽  
Aizhen Shao ◽  
Chuanying Wang
Keyword(s):  
Seed Germination ◽  
Chlorophyll Content ◽  
Root Length ◽  
Stress Condition ◽  
Zinc Concentration ◽  
Germination Rate ◽  
Germination Index ◽  
Stem Length ◽  
Zinc Fertilizer ◽  
Germination And Growth

The effects of Zn2+ stress on seed germination, seedling growth and chlorophyll content were studied in order to better understand the effect of heavy metal Zn on the growth and development of green plants. The concentration gradient of Zn2+ was 20, 50,100,150,200,300,500,700mg / L, and deionized water was used as control. The results showed that under the Zn2+ stress condition, the germination index of the rhubarb seeds increased with the increase of Zn2+ concentration. Germination potential, germination rate and germination index were the highest when Zn2+concentration was 100mg / L, the conductivity was the lowest at zinc concentration of 100mg / L, the root length, stem length and chlorophyll content of Zn2+ gradually reduced. The results showed that the amount of Zn2+ could promote seed germination, but the root length, bud length and chlorophyll content of seedlings could be affected by different degrees. The zinc fertilizer should be used in the production.

Effect of Composting, Leaching and Carbonizing on Alleviating Phytotoxicity of Sewage Sludge

2012 ◽  
Vol 518-523 ◽  
pp. 1733-1736
Author(s):  
Hong Cai ◽  
Yi Bo Wen ◽  
Ji Li
Keyword(s):  
Seed Germination ◽  
Sewage Sludge ◽  
Adverse Effects ◽  
Root Length ◽  
Germination Rate ◽  
Germination Index ◽  
Pretreatment Method

Sewage sludge (SS) contains deleterious constituents that strongly inhibited seed germination. Pretreatment methods of composting, leaching and carbonizing were thus evaluated to alleviate the phytotoxicity. All the pretreatments improved germination rate, root length and germination index of radish seeds. The best performances were presented by composting pretreatment and the pretreatment of carbonizing plus leaching. Composting greatly alleviated phytotoxicity of SS and improved seed germination, however, it also showed stunted root length and germination index compared with the soil control. The adverse effects of composted SS on seed germination were completely eliminated by leaching, while carbonizing had little effect on reversing the stunt. These results indicated that the most effective pretreatment method to alleviate phytotoxicity of SS were composting plus leaching.

Effects of Biogas Slurry Pretreatment on Germination and Seedling Growth of Vicia faba L.

2014 ◽  
Vol 955-959 ◽  
pp. 208-212 ◽  
Author(s):  
Yan Zhao ◽  
Qing Song Yang ◽  
Shu Yang ◽  
Hong Mei Zhao ◽  
Qing Song Duan ◽  
...  
Keyword(s):  
Seed Germination ◽  
Vicia Faba ◽  
Seedling Growth ◽  
Germination Rate ◽  
Germination Index ◽  
Biogas Slurry ◽  
Seed Soaking ◽  
Germination Potential ◽  
Faba Beans ◽  
Germination And Growth

In order to study the effect of seed soaking with biogas slurry on seed germination and growth of faba beans (Vicia faba L.), the experiment was conducted. The seeds were soaked in biogas slurry for various soaking durations (0, 2, 4, 6 and 8 hours) and different concentration (0, 25, 50, 75 and 100 %) along with control to determine the optimal soaking duration and find out the best growing condition. The highest germination rate, germination potential and germination index were obtained when the faba beans seeds soaked for 4 hours in 75 % biogas slurry. Seedling growth was recorded in plants where seeds soaked for 6 hours in 75 % biogas slurry. It was concluded that the seed soaking of biogas slurry with lower concentration (25, 50 and 75 %) showed best results regarding maximum germination and enhanced growth. However, under the higher concentration (100 %) conditions of biogas slurry had a tendency of decrease on seed germination and seedling growth.

scholarly journals Impacts of different salt source and concentrations on germination and seedling growth of many pumpkin seeds used as rootstoch in Iran

Genetika ◽  
2012 ◽  
Vol 44 (2) ◽  
pp. 235-250 ◽  
Author(s):  
Ahmad Dadashpour
Keyword(s):  
Electrical Conductivity ◽  
Seed Germination ◽  
Seedling Growth ◽  
Root Length ◽  
Germination Rate ◽  
Shoot Length ◽  
Root Weight ◽  
Pumpkin Seeds ◽  
High Concentrations ◽  
Shoot Weight

The effects of different salt sources (C Cl2, NaCl, and KCl) and concentrations, as measured by electrical conductivity, (0, "control", 1, 3, 5, 7 and 9 dS m-1) on seed germination and seedling growth of ?Ferro?, ?Obez?, ?RS 841? and ?Strong Tosa F1? pumpkin varieties used as rootstock were investigated in this study. The results showed that germination rate, root length, shoot length, fresh root weight, dry root weight, fresh shoot weight and dry shoot weights tend to decrease when the electrical conductivity of the solution is higher than 5 dS m-1, independent of salt sources and in all of the varieties. Three days after seeding, a germination ratio of 5 % was obtained from RS 841 variety in all salt source and concentrations, while a germination ratio over 50 % was obtained in ?Strong Tosa? variety for the same conditions except CaCl2 salt source. Nevertheless, seeds germinated in medium having high concentrations of CaCl2 had lower germination rate and poor seedling growth, compared to media having the same concentrations of NaCl and KCl. It was concluded that all of the varieties studied were more sensitive to the concentrations prepared using CaCl2 than that of the KCl, and NaCl.

scholarly journals Inducing salt tolerance in sweet corn by magnetic priming

2017 ◽  
Vol 109 (1) ◽  
pp. 89 ◽  
Author(s):  
Soheil Karimi ◽  
Saeid ESHGHI ◽  
Saeid KARIMI ◽  
Saman HASAN-NEZHADIAN
Keyword(s):  
Salt Stress ◽  
Seed Germination ◽  
Plant Growth ◽  
Sweet Corn ◽  
Germination Rate ◽  
Nacl Stress ◽  
Proline Accumulation ◽  
Membrane Thermostability ◽  
Germination And Growth ◽  
Magnetic Priming

<p>This study evaluates seed germination and growth of sweet corn under NaCl stress (0, 50, and 100 mM), after exposing the seeds to weak (15 mT) or strong (150 mT) magnetic fields (MF) for different durations (0, 6, 12, and 24 hours). Salinity reduced seed germination and plant growth. MF treatments enhanced rate and percentage of germination and improved plant growth, regardless of salinity. Higher germination rate was obtained by the stronger MF, however, the seedling were more vigorous after priming with 15 mT MF. Proline accumulation was observed in parallel with the loss of plant water content under 100 mM NaCl stress. MF prevented proline accumulation by improving water absorption. Positive correlation between H<sub>2</sub>O<sub>2</sub> accumulation and membrane thermostability (MTI) was found after MF treatments, which revealed that MF primed the plant for salinity by H<sub>2</sub>O<sub>2</sub> signaling. However, over-accumulation of H<sub>2</sub>O<sub>2</sub> after prolonged MF exposure adversely affected MTI under severe salt stress. In conclusion, magnetic priming for 6 hours was suggested for enhancing germination and growth of sweet corn under salt stress.</p>

THE INFLUENCE OF THE EXTRACT OF SOME CROPS AND SOIL RESIDUES ON GERMINATION AND GROWTH

1960 ◽  
Vol 40 (1) ◽  
pp. 188-197 ◽  
Author(s):  
K. F. Nielsen ◽  
W. B. Woods ◽  
T. F. Cuddy
Keyword(s):  
Seed Germination ◽  
Root Length ◽  
Deionized Water ◽  
The Other ◽  
Percentage Germination ◽  
Soil Extracts ◽  
Field Crops ◽  
Time Required ◽  
Germination And Growth ◽  
Germinated Seeds

Six plant species were germinated in sand wetted with water extracts of tissues of five field crops and three soils. Deionized water was used as a check f he study was conducted using standard seed germination techniques.Alter 7 to 10 days all of the germinated seeds were harvested and measurements made of the shoot and root lengths.Alfalfa extract caused the greatest reduction in shoot and root length as well as m percentage germination. It caused the greatest increase in the time required for germination. Timothy extract was not quite as harmful as the alfalfa. Extracts of oats, corn and potatoes were still less harmful with potato extract causing the least effect.The soil extracts generally had very little effect when compared with deionized water.Plant species showed marked differences in tolerance to the extracts alfalfa being the most resistant and timothy the least.Where water alone was used rate of germination and per cent germination were as high or higher than with the other extracts, but the root and shoot lengths were not always the greatest.

scholarly journals The Effects of Temperature, Light and Moisture on the Seed Germination of Siphonostegia chinensis Benth.

2019 ◽  
Vol 1 (2) ◽  
Author(s):  
Yongji Wang
Keyword(s):  
Seed Germination ◽  
Germination Rate ◽  
Germination Index ◽  
High Concentration ◽  
Complete Darkness ◽  
Germination Potential ◽  
Medium Level ◽  
Different Temperatures ◽  
High Level ◽  
Germination Experiment

To explore the optimum temperature, light intensityand water conditions for seed germination of Siphonostegia chinensis Benth.,seed germination experiment were carried out under different temperatures（5/15, 10/20, 15/25, 20/30℃）, different light intensity（14h light/10h darkness, complete darkness）and different concentrations（0％, 5％, 10％, 15％, 20％）of PEG-6000 solution. In terms of concentration, 5% PEG was regarded as the low level, 10% and 15% as the medium level, and 20% as the high level. The results showed that (1) Germination rate, germination potential, and germination index were increased with the rise of temperature. In addition, seed germination was significantly higher under the dark conditions than that with the 14h light/10h darkness. (2) No seed germination occurred when the temperature was below 10/20 ºC at 14h light/10h darkness. (3) Under 14h light/10h darkness, the germination rate, germination potential and germination index first increased and then decreased with the increase of PEG concentration. The low concentration was more beneficial to the seed germination. (4) Under the condition of complete darkness, the germination rate, germination potential and germination index decline with fluctuation with the increase of PEG concentration. Seed germination of Siphonostegia chinensis Benth. was inhibited in high concentration of PEG.

scholarly journals Effects of nano-bubbles on seed germination of muskmelon

2021 ◽  
Vol 63 (3) ◽  
pp. 42-47
Author(s):  
Quy Tung Le ◽  
◽  
Chiti Sritontip ◽  
Keyword(s):  
Statistical Analysis ◽  
Seed Germination ◽  
Food Processing ◽  
Root Length ◽  
Germination Rate ◽  
Dry Weight ◽  
Full Potential ◽  
Distilled Water ◽  
Stem Height ◽  
Growth Indicators

Nano-bubbles (NBs) demonstrate their full potential in fields like agriculture, aquaculture, food processing, and wastewater treating. This study investigated the effects of air NBs on the progress of seed germination of muskmelon. Distilled water was treated with NBs under time schedules of 10, 15, and 20 min and untreated distilled water was used as the control. Statistically significant differences in seed germination rate occurred between treatments. Growth indicators such as stem height, root length, and leaf area were measured after 14 d after treatment with water containing NBs. Statistical analysis showed that there were significant differences in the dry weight of samples between treatments although these differences were quite small.

scholarly journals Effects of Temperature on Seed Germination of Invasive Plant Rorippa amphbia (L.) Besser

2019 ◽  
pp. 1-7
Author(s):  
Yufeng Xu ◽  
Miao Liu ◽  
Yuanhao Lv ◽  
Qiuli Wang ◽  
Bo Qu ◽  
...  
Keyword(s):  
Global Warming ◽  
Seed Germination ◽  
Filter Paper ◽  
Invasive Plant ◽  
Germination Rate ◽  
Petri Dish ◽  
Liaoning Province ◽  
Germination Index ◽  
Temperature Range ◽  
Germination Potential

Aims: Global warming and biological invasion are major environmental issues faced in the world. In the study, Rorippa amphibia, a perennial invasive clone plant in northern China, was used as a material to study the germination characteristics of the seeds at different temperatures. Study Design: Germination test of R. amphibia seeds at different temperature was studied by means of laboratory culture. The germination percentage, germination index, germination potential, bud height and root length of the seeds were determined. Place and Duration of Study: Samples were collected from the west side of the swimming pool of Shenyang Agricultural University of Liaoning Province in August 2017. Experiments were done in the College of Biological Science and Technology, between October 2017 and June 2018. Methodology: The petri dish method was used in the experiment. Fifty seeds were randomly selected and soaked in distilled water for 12h. The seeds were placed in a petri dish covered with double filter paper, cultured at 10℃, 15℃, 20℃, 25℃, 30℃, 35℃ and 40℃ in light incubators for 12h darkness and 12h light (4000lux), with 3 repeats per processing. Seed germination was based on embryo root breakthrough seed coat ≥ 1 mm. During the experiment, the numbers of seed germination were recorded every day, and the filter paper was kept moist until there was no new seed germination for 2 consecutive days, which was regarded as the end of germination. The numbers of seed germination should be counted regularly every day, and the beginning and duration of germination should be recorded. The germination rate, daily germination rate, germinating potential, germinating index and vigor index of R. amphibia seeds at different temperature were calculated by measuring bud height and radicle length on the 10th day after germination. Results: The temperature range of seed germination of R. amphibia was wide, which could germinate at 15 - 40℃. Lower temperature delayed the peak period of seed germination at some extent and the germination rates of R. amphibia peak at 30 - 35℃, which were 44.67% and 50% respectively. At 35℃, germination potential and germination index were 25.33% and 29.46, reaching the maximum value. Conclusion: The reason for the wide temperature range of seed germination and the low germination rate might be the candidate method for clonal plant population establishment in temperate zone. The higher germination rate of high temperature condition suggested that clone invasive plants in temperate regions were more invasive during global warming.

scholarly journals Improving of true shallot seeds germination by the application of plant growth regulators and osmoconditioning treatment

2022 ◽  
Vol 951 (1) ◽  
pp. 012065
Author(s):  
K A Tanjung ◽  
L A M Siregar ◽  
R I M Damanik
Keyword(s):  
Seed Germination ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Root Length ◽  
Germination Rate ◽  
Block Design ◽  
Dry Weight ◽  
Peg 6000 ◽  
The Difference

Abstract This study aims to determine the effect of the application of plant growth regulators and osmoconditioning treatment to improve the germination of true shallot seeds. This research was conducted in Asam Kumbang, Medan Selayang, Medan, Indonesia. The research method was a Randomize Block Design with 2 factors, the first factor is Plant Growth Regulators (Z) with 6 levels, namely Z0 (Without PGRs Application), Z1 (Gibberellin 500 ppm), Z2 (Putrescine 15 ppm), Z3 (Putrescine 20 ppm), Z4 (Putrescine 15 ppm + Gibberellin 500 ppm), Z5 (Putrescine 20 ppm + Gibberellin 500 ppm). The second factor was the osmoconditioning treatment with Polyethylene Glycol (PEG) 6000 (O) with 4 levels, namely O0 (Without Osmoconditioning Treatment), O1 (PEG 6000 3%), O2 (PEG 6000 4%), O3 (PEG 6000 5%). Parameters observed were germination rate, germination rate index, percentage of germination, germination ability, simultaneous growth of seeds, seedling length, root length, seedling dry weight, and catalase activity test. The results of this study were: application of plant growth regulators could improve true shallot seed germination, indicated by the observed values of all parameters which were significantly different from those of the control (without PGRs application). The plant growth regulator that produced the best increase in germination was Gibberellins 500 ppm, although the difference in effect with other PGRs was not significantly different. Meanwhile, the osmoconditioning treatment with PEG 6000 was also able to improve the germination of true shallot seeds as indicated by an increase in most of the observed parameters, but in the root length parameter it was seen that the tendency of PEG 6000 3% always gave the highest value but gave the lowest value for this parameter. The best concentration of PEG 6000 in the osmoconditioning treatment to improve true shallot seed germination was 3%.

scholarly journals Pengaruh Radiasi Plasma Lucutan Pijar Korona dan Pupuk Organik Rumen Sapi terhadap Produksi Bayam Cabut (Amaranthus tricolor L.)

2020 ◽  
Vol 12 (1) ◽  
pp. 28-36
Author(s):  
Ulfi Nadzifah ◽  
Erma Prihasanti ◽  
Sumariyah Sumariyah
Keyword(s):  
Glow Discharge ◽  
Chlorophyll Content ◽  
Root Length ◽  
Radiation Treatment ◽  
Organic Fertilizer ◽  
Dry Weight ◽  
Plasma Radiation ◽  
Stem Length ◽  
Amaranthus Tricolor ◽  
Wet Weight

This study aims to determine the effect of radiation of corona glow discharge plasma and rumen organic fertilizer to the productivity of spinach (Amaranthus tricolor L). The study was conducted using factorial Completely Randomized Design 3 x 4 consisting of 12 treatments and 6 replications with plasma radiation treatment factors and additions of rumen organic fertilizer. Plasma radiation is carried out with a duration of 0 minutes, 25 minutes, 35 minutes, and 45 minutes, while the additions of cow rumen organic fertilizer is 0 g, 25 g, and 50 g per plant. Parameters observed included root length, stem length, number of leaves, wet weight, dry weight, and chlorophyll content. Data obtained from the research results were analyzed using ANOVA test and DMRT further test. The results showed that there was an interaction of radiation of c corona glow discharge and additions of cattle rumen organic fertilizer to stem length, wet weight, and plant dry weight, but there was no interaction between both root length, leaf number, and total chlorophyll content of spinach plants. The interaction of the two treatment factors showed significant results in 45 minutes of radiation treatment and the addition of 50 organic fertilizer. The treatment increased root length by 258%, stem length 240%, leaf number 84%, wet weight 1587%, dry weight 1275% compared to control treatment. The results of this study concluded that radiation of corona glow discharge and rumen organic fertilizer affected the productivity of spinach spinach (Amaranthus tricolor L.).

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