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 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 In-vitro Seed Germination Biology of Milicia Excelsa Population Collected from Benchi-Maji Zone, South Western Ethiopia

2020 ◽  
Author(s):  
MOHAMMED ADEFA SEID ◽  
Yigardu Mulatu ◽  
Agena Anjulo ◽  
Semaigzer Ayalew ◽  
Marshet Nigatu ◽  
...  
Keyword(s):  
Seed Germination ◽  
Tap Water ◽  
Germination Rate ◽  
Germination Percentage ◽  
Hot Water ◽  
Laboratory Conditions ◽  
Southwestern Ethiopia ◽  
Micro Propagation ◽  
Milicia Excelsa

Abstract Background: In Ethiopia, species used for timber production are limited to few species. So, it is becoming necessary to find innovative ways of maintaining and improving the genetic quality of species such as Milicia excelsa by domesticating them into a wider scale of ecological and social environment. Hence, the main objective of this study was to investigate the seed germination biology and behavior of Milicia excelsa under in-vitro laboratory conditions so as to promote the domestication and establishment of seed production areas (SPA) in-situ. Methods: Seeds collected from Benchi district of Benchi-Maji zone of southwestern Ethiopia were subjected to germination biology in-vitro to determine the germination responses of M. excelsa seeds under laboratory conditions. So, a total of 1200 seeds were randomly selected, treated and prepared using four treatments procedures with six replications for paper method and 3 replications for sand method, and tested using paper methods in CRD design. So, 600 seeds were tested using paper and sand methods each where 25 seeds were tested for each replication in paper and 50 seeds for each replication in sand method. The germination process was lasted between 19 March 2020 and 15 May 2020. Result: The mean germination percentage of seeds of M. excelsa was noticed to be lower than 20%. This is below the expected (45%) germination rate of mature and healthy seed lot. Overall, seeds that were not treated using any pre-sowing treatments has shown relatively better germination percentage (19%) followed by seeds rubbed by hand (15%). Analysis of one-way t-test shows that the effects untreated (control –T1) and rubbing by hand treatments (T4) is significant at p < 0.05 compared to the effects of the other pre-sowing treatments (T2- seeds only washed with normal tap water, and T3- seeds washed and soaked in hot water for 15 minutes) on the germination capability of seeds of M. excelsa . However, no significance difference was observed between control (T1) and hand scarification (T2). Conclusions: The average germination of M. excelsa seeds combined for all treatments is lower than 20% which is lower germination when comparing with other similar research reported in other countries. Therefore, it required to include and test other pre-sowing treatments including tissue culture micro-propagation of seeds to maximize the germination of M. excelsa seeds helping to get enough seedlings required for the domestication project.

scholarly journals Germination Behavior of Rauvolfia serpentine (L.) Seeds with the use of Different Seed Treatments

2021 ◽  
Author(s):  
Amit Kumar Tiwari ◽  
Prawal P.S. Verma ◽  
Dipender Kumar ◽  
Sonveer Singh ◽  
Rakesh Kumar ◽  
...  
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Seed Treatment ◽  
Inhibitory Effect ◽  
Germination Percentage ◽  
Hot Water ◽  
Cotton Cloth ◽  
Cow Dung ◽  
Seed Treatments ◽  
Seed Propagation

Background: Sarpagandha is an indigenous medicinal herb of Indian continent. It has many medicinal properties. Due to increasing demand of Sarpagandha, its exploitation is increasing continuously but for lack of cultivation, this plant has been listed in endangered category. Commercially, it is propagated through seeds but the main barrier of seed propagation is its irregular and low germination. Hence, the current study was undertaken to study the effect of growing media and seed treatment methods on seed germination and seedling growth of Sarpagandha to eliminate the inhibitory effect of the hard stony endocarp.Methods: Seed germination and seedling growth experiments of Sarpagandha were carried out with following different seed treatments, T1 (Control), T2 (Water soaking for 24 hours), T3 (water soaking for 48 hours), T4 (Water soaking for 24 hours + cotton cloth wrapping for 24 hours), T5 (GA3 200 ppm), T6 (FYM treatment for 24 hours), T7 (FYM treatment for 48 hours), T8 (Hot water treatment) and T9 (Cow dung treatment for 24 hours). Experiment was laid out in CRD. The data recorded on the various parameters were analyzed at 5% level of significance by using ANOVA.Result: Results indicated highest germination percentage (51), lowest mortality percent (49), minimum days for initiation of germination (23), minimum days taken for germination completion (33), highest speed of germination (3.77), maximum vigour index (1441.44), highest root (11.27 cm) and highest shoot length (17 cm) in T5 (GA3 200 ppm) followed by T3 (water soaking for 48 hours). Indicating, T5 (GA3 200 ppm) to be best seed treatment for higher germination and subsequent seedling growth of Sarpagandha (Rauvolfia serpentine L.).

scholarly journals The Alleviation Effect of Silicon on Seed Germination and Seedling Growth of Tomato Under Salinity Stress

2012 ◽  
Vol 76 (1) ◽  
pp. 119-126 ◽  
Author(s):  
Maryam Haghighi ◽  
Zahra Afifipour ◽  
Maryam Mozafarian
Keyword(s):  
Seed Germination ◽  
Salinity Stress ◽  
Seedling Growth ◽  
Germination Rate ◽  
Germination Percentage ◽  
Percentage Germination ◽  
Tomato Seeds ◽  
Germination Characteristics ◽  
Salinity Levels ◽  
Mean Germination Time

The Alleviation Effect of Silicon on Seed Germination and Seedling Growth of Tomato Under Salinity StressThis study was conducted to evaluate the effectiveness of silicon (Si) application under salinity levels on seed germination and growth characteristics of tomato seeds. A laboratory experiment was performed on completely randomized design with two levels of salinity (25 and 50 mM NaCl) and 2 concentration of Si (1 and 2 mM) with 4 replications. Germination percentage, germination rate, seedling shoot and root length, fresh and dry weight of seedling and mean germination time was measured. Seed germination ofLycopersicon esculentumL. was significantly affected by salinity levels, Si and their interaction. Germination characteristics of tomato seeds decreased drastically by increasing NaCl concentrations. However, 1 mM Si had positive effects on seed germination characteristics and improved germination percentage, germination rate and mean germination time. Si alleviated the harmful effect of salinity stress on tomato seed germination at almost all germination characteristics.

scholarly journals Utilization of Grape Fruit Waste-based Substrates for Seed Germination and Seedling Growth of Lemon Basil

2017 ◽  
Vol 27 (4) ◽  
pp. 523-529 ◽  
Author(s):  
Mohammed El-Sayed El-Mahrouk ◽  
Yaser Hassan Dewir ◽  
Salah El-Hendawy
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Growth Parameters ◽  
Low Cost ◽  
Germination Rate ◽  
Germination Percentage ◽  
Waste Recycling ◽  
Grape Fruit ◽  
Fruit Waste ◽  
One To One

Grape (Vitis vinifera) waste management is a major problem in juice production, but it could be transformed into a major opportunity if the waste was recycled and used as a nursery growing medium. The aim of this study was to evaluate the suitability of four composts based on squeezed grape fruit waste (SGFW), mixed with coir or vermiculite in a one-to-one ratio by volume to form 13 growing media, for seed germination and seedling growth of ‘Mrs. Burns’ lemon basil (Ocimum basilicum var. citriodora). The final germination percentage (FGP), corrected germination rate index (CGRI), survival percentage, and seedling growth of ‘Mrs. Burns’ lemon basil were the variables measured. Pure SGFW reduced seed germination and seedling growth. The medium combining pure SGFW with vermiculite in a one-to-one ratio by volume was optimal for seed germination and seedling growth; in this medium the highest FGP, CGRI, survival rate, and growth parameters were recorded. The negative effects of pure SGFW composts were eliminated by mixing all composts with coir or vermiculite. These waste recycling media are low-cost products that can be beneficially used in nurseries on a commercial scale.

scholarly journals EFFECT OF SEED PRIMING METHODS ON THE GERMINATION OF DETARIUM MICROCARPUM

2021 ◽  
pp. 1-10
Author(s):  
A Abdulrahman ◽  
M Atiku ◽  
A.S Ambursa ◽  
I Umar ◽  
M Muhammed ◽  
...  
Keyword(s):  
Tap Water ◽  
Germination Rate ◽  
Seed Priming ◽  
Germination Percentage ◽  
Hot Water ◽  
State University ◽  
Detarium Microcarpum ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Pre Treatment

This study was carried out at Kebbi State University of Science and Technology, Aliero, Kebbi State, to determine the effect of seed priming methods on the germination of Detarium microcarpum. The study was carried out in the Forestry Laboratory of the Faculty of Agriculture. The effectiveness of nine (9) different seed priming methods was assessed, control inclusive. Treatment 1 (TRT1) seeds were soaked in tap water for 48 hours, Treatment 2 (TRT2) seeds were mechanically scarified opposite to microphyle, treatment 3, 4, and 5 (TRT3, TRT4, TRT5) seeds were immersed in H2SO4 for 5, 10 and 15 minutes respectively, treatment 6, 7 and 8 (TRT6, TRT7 and TRT8) seeds were soaked in hot water (100oC) for 5, 10 and 15 minutes respectively and untreated seeds (CNTRL). Completely Randomized Design with three (3) replications was used. The data obtained were analyzed using one-way Analysis of Variance (ANOVA).The result revealed that seeds of D. microcarpum subjected to TRT2, TRT4, TRT5 and TRT8 recorded with highest Final Germination Percentage (FGP 100%) and was found to differ significantly (P<0.05) with other treatment and CNTRL recorded the lowest FGP (60%).Thus, TRT2 was significantly (P<0.05) enhanced the seed and germination rate of D. microcarpum with the highest FGP (100%), lowest MGT (6.67), highest GRI (15.05), highest GE (12.01), lower FDG (5.67) with maximum GI value (900). Based on the result, pre-treatment of T. indica seeds with H2SO4 is recommended for effective germination.

scholarly journals Effect of desiccation and salinity stress on seed germination and initial plant growth of Cucumis melo

2013 ◽  
Vol 31 (4) ◽  
pp. 833-841 ◽  
Author(s):  
S. Sohrabikertabad ◽  
A. Ghanbari ◽  
H.R. Mohassel, Mohamad ◽  
M.N. Mahalati ◽  
J. Gherekhloo
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Cucumis Melo ◽  
Germination Rate ◽  
Germination Percentage ◽  
Sodium Content ◽  
Invasive Weed ◽  
The North ◽  
Root And Shoot Length ◽  
Significant Difference

Smellmelon, an annual invasive weed of soybean production fields in the north of Iran, reproduces and spreads predominately through seed production. This makes seed bank survival and successful germination essential steps in the invasive process. To evaluate the potential of Smellmelon to invade water-stressed environments, laboratory studies were conducted to investigate the effect of desiccation and salinity at different temperatures on seed germination and seedling growth of Cucumis melo. Seeds were incubated at 25, 30, 35 and 40 ºC in the darkness in a solution (0, -0.2, -0.4, -0.6, -0.8, 1 and 1.2 MPa) of a salt (NaCl), and in a solution (0, -2, -4, -6, -8, -10, -12 bar) of PEG-6000 (Polyethylene glycol), in two separate experiments. The results showed that the highest percentage and rate of germination occurred at 35 ºC in salt concentrations of 0, -0.2, -0.4 MPa and PEG concentrations of 0, -2, -4 bar. Increasing the concentration of salt (NaCl) and PEG limited germination, seedling growth and water uptake but increased the sodium content in the seedlings. No significant difference was observed among 0, -0.2 and -0.4 MPa of NaCl and among 0, -2 and -4 bar of PEG concentration at 35 ºC. The negative effects of PEG were more than those of NaCl on germination percentage and germination rate. Increased stress levels lead to reduction of root and shoot length, and SVL of seedlings. Na+ content of seedling decreased with limited seedling growth of C. melo.

scholarly journals Effects of hydropriming on seed germination, seedling growth and yield of bitter gourd

2019 ◽  
Vol 17 (3) ◽  
pp. 281-287
Author(s):  
Shaila Shermin Tania ◽  
Md. Mokter Hossain ◽  
M Abul Hossain
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Cold Water ◽  
Tap Water ◽  
Block Design ◽  
Hot Water ◽  
Growth And Yield ◽  
Bitter Gourd ◽  
Control Treatment ◽  
Minimum Number

The experiment was conducted to find out the effects of hydropriming on seed germination, seedling growth and yield of bitter. Two single factor experiments were conduced at the laboratory and field of Seed Science and Technology Department following completely randomized design with three replications and randomized complete block design with five replications, rspectively. The experiments comprised six soaking treatments viz. T0: untreated (control), T1: tap water (around 25º ± 2º C) for overnight, T2:cold water (12ºC) for 5 min, T3: cold water (12ºC) for 10min, T4:cold water (12ºC) for 15min, T5: hot water (45ºC) for 5 min and T6: hot water (45ºC) for 10min soaking. The highest germination (88.0%) was obtained from T5 treatment and the lowest germination  (30.0%) was recorded in control treatment. It was also observed that T5 treatment exehibited superior performances in respect of most of the parameters studied in the laboratory as well as in fiield experiment as compeared to control treatment. In respect of fruit yield per plant, maximum number of fruits obtained from T5 treatment (16 fruits/plant) followed by T6 (14 fruit/plant), T1 (12 fruit/plant), T2 (12.0 fruit/plant), T3 (11.2 fruit/plant) and T4 (11.2 fruit/plant) and the minimum number of fruits per plant recorded from the control treatment (7.6). From the findings of these study it can be concluded that bitter gourd seeds soaked in hot water at 45ºC for 5 min could improve seed germination, expedite seedling growth and eventually increase the yield of fruit. J Bangladesh Agril Univ 17(3): 281–287, 2019

ALLELOPATHIC EFFECTS OF PLANT PARTS OF TWO INVASIVE WEEDS ON SEED GERMINATION AND SEEDLING GROWTH OF MAIZE VARIETIES

2020 ◽  
Vol 27 (2) ◽  
pp. 85-92
Author(s):  
Syed Majid Rasheed
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Root Weight ◽  
Invasive Weeds ◽  
Allelopathic Potential ◽  
Plant Parts ◽  
Maize Varieties ◽  
Maize Variety ◽  
Allelopathic Effects ◽  
Shoot Weight

The “Allelopathic effects of plant parts of two invasive weeds on seed germination and seedling growth of maize varieties” was investigated at the Agriculture Graduate laboratory, The Bacha khan University Charsadda Pakistan during summer, 2018. The experiment was carried out in CRD design and factorial arrangements repeated thrice.Five maize varieties namely Azam, Babar, Pahari, Iqbal, and Jalal comprised factor A while Factor B consisted of water extracts from root, stem and leaf of invasive weeds; Parthenium hysterophorus and Xanthium strumarium. Distilled water was used as control for comparison. Data were recorded for percent germination (%), seedlings length (cm), shoot weight (g) and root weight (g). It was evident from the results that maximum germination (100 %), Seedling length (7.6 cm), shoot weight (164.88 g) and root weight (163.8 g) was recorded for control (water) treatments. However, among the tested extracts the minimum germination (80.9 %) of maize varieties were achieved under P. hysterophorus stem extract. Maize variety “Pharri” revealed highest sensitivity towards allelopathic potential of different extract, giving minimum (80.95 %) germination. On the other hand, the maize variety “Babar” showed strong resistance against all applied extracts (treatments) and showed 100% seed germination. In the light of the current results it is recommended that the farmer should discourage the growth of P. hysterophorus weed in their filed as it has strong allelopathic effects on maize crop. Moreover, the farmers should grow maize variety Babar instead of others as this variety showed strong resistant to the allelopathic effects of both the invasive weeds studied.

scholarly journals Accelerating Fraser Fir Seedling Growth with Benzylaminopurine Sprays

HortScience ◽  
1991 ◽  
Vol 26 (4) ◽  
pp. 389-390
Author(s):  
James A. Bryan ◽  
John R. Seiler
Keyword(s):  
Seedling Growth ◽  
Growth Regulator ◽  
Apical Meristem ◽  
Foliar Application ◽  
Root Weight ◽  
Seedling Height ◽  
Abies Fraseri ◽  
Fraser Fir ◽  
Shoot Weight ◽  
Synthetic Growth

Foliar application of the synthetic growth regulator BA was evaluated for increasing the duration and extent of Fraser fir [Abies fraseri (Pursh.) Poir.] seedling growth. Aqueous solutions of 0, 222, or 444 μm BA (0, 50, or 100 ppm) were sprayed on the shoots of Fraser fir seedlings biweekly from 18 until 38 weeks after planting. Foliar sprays of 444 μm BA increased seedling height 19%, increased shoot weight 57%, reduced root weight 22%, and increased total weight 27%. Apical meristem activity was stimulated and the long periods of dormancy typical of Fraser fir seedlings were avoided. Chemical name used: 6-benzylaminopurine (BA).

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