scholarly journals Responses of Maize Varieties to Salt Stress in Relation to Germination and Seedling Growth

2018 ◽  
Vol 69 ◽  
pp. 1-11 ◽  
Author(s):  
Nuurismaan Hassan ◽  
Md. Kamrul Hasan ◽  
Md. Obaidullah Shaddam ◽  
Mohammad Sohidul Islam ◽  
Celaleddin Barutçular ◽  
...  
Keyword(s):  
Salt Stress ◽  
Seedling Growth ◽  
Agricultural Research ◽  
Growth Parameters ◽  
Tap Water ◽  
Germination Rate ◽  
Dry Weight ◽  
Growth Stages ◽  
Water Control ◽  
Maize Varieties

A pot experiment was carried out at the Laboratory of Department of Agronomy, Hajee Mohamad Danesh Science and Technology University (HSTU), Bangladesh during 2016 to evaluate the response of maize varieties at germination and seedling growth stages under salt stress. The seeds of the BARI (Bangladesh Agricultural Research Institute) developed four maize varietiesviz.Barnali, Khoi Vutta, Mohor and BARI Maize 5 were placed in plastic pots (each of 25 cm length and 12 cm width) on sand bed irrigated with tap water (control), 100 and 200 mM NaCl salt solutions. It was replicated in thrice with completely randomized design (CRD). Salinity stress significantly affected the germination characters and seedling growth parameters of maize varieties. The germination percentages (GP) and germination rate (GR) reduced significantly with increasing salinity, and the variety Khoi Vutta showed the highest GP and GR followed by Barnali and Mohor showed the lowest GP and GR followed by BARI maize 5. Under high salinity level, seedling growths characteristics like shoot and root lengths, fresh and dry weight of shoot and roots reduced remarkably in the variety Mohor indicating salt susceptible while the minimum reduction of the aforementioned traits was observed in the variety Khoi Vutta demonstrating high salt tolerant variety. The studied varieties can be ranked on the basis of salt tolerance as Khoi Vutta > Barnali > BARI Maize 5 > Mohor from the experiment.

scholarly journals Germination and Seedling Growth of Pulse Crop (Vigna Spp.) as Affected by Soil Salt Stress

2016 ◽  
Vol 4 (2) ◽  
pp. 159-170 ◽  
Author(s):  
Pankaj Awasthi ◽  
Himani Karki ◽  
Vibhuti Vibhuti ◽  
Kiran Bargali ◽  
S. S Bargali
Keyword(s):  
Salt Stress ◽  
Seedling Growth ◽  
Germination Rate ◽  
Dry Weight ◽  
Germination Percentage ◽  
Growth Stages ◽  
Sensitive Species ◽  
Worldwide Distribution ◽  
Vigna Species ◽  
Stress Levels

Vigna is a genus of flowering plants in the legume family, Fabaceae with worldwide distribution. In the present study, effect of salt stress was investigated in four species of Vigna viz. V. mungo (urd), V. angularis (rais), V. radiata (moong) and V. aconitifolia (moth) at germination and seedling growth stages in a glasshouse experiment. Seeds of selected crops were surface sterilized and placed under three salt stress levels of 0 (control), 50mM and 100mM using NaCl solutions. Three replicates for each treatment was used for this experiment. The results indicated that increase in salt stress levels caused a reduction in germination percentage, germination rate, shoot length, root length and seedling dry weight of each Vigna species. The overall results indicated that among the four species, V. aconitifolia was the most sensitive, whereas V. mungo was the least sensitive species to the salinity in almost every aspect of growth.

Salinity Tolerance of Black Gram Cultivars During Germination and Early Seedling Growth

2018 ◽  
Vol 51 (3) ◽  
pp. 51-68 ◽  
Author(s):  
M.K. Hasan ◽  
M.S. Islam ◽  
M.R. Islam ◽  
H.N. Ismaan ◽  
A. El Sabagh
Keyword(s):  
Salt Stress ◽  
Salinity Tolerance ◽  
Seedling Growth ◽  
Negative Impact ◽  
Germination Rate ◽  
Dry Weight ◽  
Germination Percentage ◽  
Shoot Length ◽  
Sand Culture ◽  
Black Gram

Abstract A laboratory experiment regarding germination and seedling growth test was conducted with three black gram genotypes tested under three salinity levels (0, 75 and 150 mM), for 10 days, in sand culture within small plastic pot, to investigate the germination and seedling growth characteristics. Different germination traits of all black gram genotypes, like germination percentage (GP), germination rate (GR), coefficient of velocity of germination (CVG) greatly reduced, as well as mean germination time (MGT) increased with increasing salt stress. At high salt stress, BARI Mash-3 provided the highest GP reduction (28.58%), while the lowest was recorded (15.79% to control) in BARI Mash-1. Salinity have the negative impact on shoot and root lengths, fresh and dry weights. The highest (50.32% to control) and lowest reduction (36.39%) of shoot length were recorded in BARI Mash-2 and BARI Mash-1, respectively, under 150 mM NaCl saline conditions. There were significant reduction of root lengths, root fresh and dry weight, shoot length, shoot fresh and dry weight in all genotypes under saline condition. The genotypes were arranged as BARI Mash-1 > BARI Mash-3 > BARI Mash-2, with respect to salinity tolerance.

scholarly journals Genetic variability of red clover seedlings in relation to salt stress

2014 ◽  
Vol 30 (3) ◽  
pp. 529-538 ◽  
Author(s):  
V. Mandic ◽  
V. Krnjaja ◽  
Z. Bijelic ◽  
Z. Tomic ◽  
A. Simic ◽  
...  
Keyword(s):  
Salt Stress ◽  
Seedling Growth ◽  
Red Clover ◽  
Dry Weight ◽  
Growth Stages ◽  
Early Seedling Growth ◽  
Vigor Index ◽  
Growing Medium ◽  
Early Seedling ◽  
Sterile Plastic

Red clover is highly salt-sensitive plant, especially during germination and early seedling growth stages. The aim of this investigation was to estimate the effects of different saline conditions (0, 50, 100, 150, and 200mM NaCl) on germination and early seedling growth in four red clover varieties (Kolubara, K-32, K-17 and K-39). Germination test was conducted in the laboratory conditions using sterile plastic vessels on filter paper moistened with 10ml of the appropriate salt test solutions. It was observed that the germination energy (GE), germination (G), percentage of dead or infected seeds (DIS), normal seedlings (NS), root length (RL), shoot length (ShL), fresh weight (FW) and dry weight of seedling (DW) and seedling vigor index (SVI) were significantly decreased with increasing concentrations of NaCl in the growing medium. The tested varieties of red clover showed different NaCl tolerance at the seedling stage. Generally, studied red clover varieties are very sensitive to salt, especially K-32 which has the lowest values for GE, G, NS and SVI and highest for DIS. Variety K-17 proved to be a variety that the best tolerates conditions of salt stress because the values for GE, G, NS, RL and SVI were highest. Testing of varieties of red clover in the early seedling growth at different concentrations of NaCl in the growing medium could be helpful in the identification and selection of varieties for cultivation on saline soils.

scholarly journals Effect of irrigation levels at different growth stages on growth parameters and yield of four selected chilli accessions

1970 ◽  
Vol 34 (1) ◽  
pp. 143-155 ◽  
Author(s):  
MAI Khan ◽  
AM Farooque ◽  
MA Hoque ◽  
MA Rahim ◽  
MA Haque
Keyword(s):  
Agricultural Research ◽  
Growth Parameters ◽  
Dry Weight ◽  
Fruit Weight ◽  
Water Levels ◽  
Research Centre ◽  
Growth Stages ◽  
Plant Leaf ◽  
Water Treatments ◽  
Different Growth Stages

An experiment as conducted at Bangladesh Agricultural University. Mymensingh in poly bags under glasshouse condition during October 1997 to March 1998 to know the effects of different water levels at different growth stages of four selected chilli accessions viz., C-027l, C-0272, C-0275, and C-0277. Six water treatments viz., watering once everyday (W1), watering twice everyday (W2). watering at 4 days interval (W3), watering at 8 days interval (W4), watering at 16 days interval (W5), and no watering (W0) were tested at three growth stages viz., Vegetable stage (S1), Flowering stage (S2), and Fruiting stage (S3). The accessions of chilli were selected from the results of a previous experiment where ten accessions of chilli collected from Spices Research Centre (SRC) of Bangladesh Agricultural Research Institute, Joydebpur, Gazipur were used. The primary selection was made on the basis of their tolerance and susceptibility to water stages. The results revealed that all the studied parameters viz., plant height, canopy diameter, root length, root volume, no. of fruits per plant, fruit length, fruit diameter, individual fruit weight, no. of leaves per plant, leaf area per plant, fruit yield per plant, leaf dry weight, stem dry weight, root dry weight, fruit dry weight per plant, varied significantly among the accessions under different water treatments at different stages of growth. Out of four accessions, C-0271 and C-0277 were found as water stress tolerant and susceptible, respectively. Key Words: Water level; growth stage; chilli accessions DOI: 10.3329/bjar.v34i1.5764Bangladesh J. Agril. Res. 34(1) : 143-155, March 2009

scholarly journals Germination and Seedling Growth of Zea mays L. under Different Levels of Sodium Chloride Stress

2014 ◽  
Vol 12 ◽  
pp. 5-15 ◽  
Author(s):  
R. Sozharajan ◽  
S. Natarajan
Keyword(s):  
Zea Mays ◽  
Salt Stress ◽  
Water Uptake ◽  
Seedling Growth ◽  
Growth Parameters ◽  
Germination Rate ◽  
Biomass Accumulation ◽  
Petri Dish ◽  
Germination Percentage ◽  
Yield Reduction

Salt stress is one of the most severe environmental factors that reduces and limits growth and development of plants. Abiotic stresses such as heavy metals, salinity, drought, temperature, UV-radiation, ozone causes drastic yield reduction in most of the crops. Especially salt stress affects around 20 of NaCl on germination and seedling growth of Zea mays L. Seeds of Zea mays were germinated in glass Petri- 100 × 15 mm diameter lined with blotting paper. Ten seeds were placed in each petri-dish. Petridishes were irrigated with 25, 50, 75, 100, 125, 150, 175 and 200 mM concentrations of NaCl. A control was moistened with ten milliliters of distilled water. The germination percentage, water absorption of the seeds, water uptake percentage and the growth parameters were observed. The results obtained showed that the inhibition of the germination percentage, germination rate, water uptake, growth and biomass accumulation of the seedlings were observed to decrease with increasing NaCl concentrations. At the highest level of stress both plumule and radical decreased significantly. The salt stress decreased seed germination, biomass and growth of maize seedlings due to ion toxicity, decrease osmotic potential and oxidative stress

scholarly journals The Efficiency of Different Priming Agents for Improving Germination and Early Seedling Growth of Local Tunisian Barley under Salinity Stress

Plants ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2264
Author(s):  
Rim Ben Youssef ◽  
Nahida Jelali ◽  
Nadia Boukari ◽  
Alfonso Albacete ◽  
Cristina Martinez ◽  
...  
Keyword(s):  
Salt Stress ◽  
Seedling Growth ◽  
Electrolyte Leakage ◽  
Germination Rate ◽  
Dry Weight ◽  
Seed Priming ◽  
Nutrient Content ◽  
Hordeum Vulgare L ◽  
Membrane Injury ◽  
Essential Nutrient

The current work aimed to investigate the effect of seed priming with different agents (CaCl2, KCl, and KNO3) on germination and seedling establishment in seeds of the barley species of both Hordeum vulgare (L. Manel) and Hordeum maritimum germinated with three salt concentrations (0, 100, and 200 mM NaCl). The results showed that under unprimed conditions, salt stress significantly reduced the final germination rate, the mean daily germination, and the seedling length and dry weight. It led to a decrease in the essential nutrient content (iron, calcium, magnesium, and potassium) against an increase in sodium level in both of the barley species. Moreover, this environmental constraint provoked a membrane injury caused by a considerable increase in electrolyte leakage and the malondialdehyde content (MDA). Data analysis proved that seed priming with CaCl2, KCl, and KNO3 was an effective method for alleviating barley seed germination caused by salt stress to varying degrees. Different priming treatments clearly stimulated germination parameters and the essential nutrient concentration, in addition to increasing the seedling growth rate. The application of seed priming reduced the accumulation of sodium ions and mitigated the oxidative stress of seeds caused by salt. This mitigation was traduced by the maintenance of low levels of MDA and electrolyte leakage. We conclude that the priming agents can be classed into three ranges based on their efficacy on the different parameters analyzed; CaCl2 was placed in the first range, followed closely by KNO3, while the least effective was KCl, which placed in the third range.

scholarly journals Effect of Nacl on Germination and Seedling Growth of Some Cotton Genotypes

2020 ◽  
Vol 7 (2) ◽  
pp. 199-207
Author(s):  
Kamelia Mondal ◽  
Joyanti Ray ◽  
Md Yasin Ali
Keyword(s):  
Seedling Growth ◽  
Growth Parameters ◽  
Dry Weight ◽  
Control Treatment ◽  
Soil Conditions ◽  
Growth Stages ◽  
Quick Method ◽  
Relative Value ◽  
Superior Genotype ◽  
Cotton Genotypes

Salinity is an emerging problem among the abiotic stresses of plants in Bangladesh. One easy way to cope with the problem of salinity is to exploit the genetic potential of plants for their adaptability to adverse soil conditions. Salt tolerance improvement might be achieved through selection from already existing germplasm which can be done by quick method particularly in early growth stages of crops. A laboratory experiment was conducted to determine the effect of salinity on germination and the seedling growth of five cotton genotypes. Two factors include genotypes (CB-9, CB-10, CB-12, CB-14 and CB-15) and salt solution of different concentrations (control -0 dS m-1, 4 dS m-1, 8 dS m-1, 12 dS m-1 and 16 dS m-1) were used. Relative to control treatment, germination energy and germination capacity at 16 dS m-1 was maximum in CB-12 (0.72 and 0.77 respectively) whereas germination percentage (0.99) was maximum in CB-9 and the relative value of all the above parameters was minimum in CB-15 (0.02, 0.13, 0.41 and 0.09, respectively). In case of seedling growth parameters, shoot length, seedling vigor index and dry weight at 16 dS m-1 were maximum in CB-9 (0.67, 0.64 and 0.77 respectively) relative to control whereas the relative value of all those parameters was minimum in CB-15 (0.5, 0.17, 0.31 and 0.59 respectively). Considering all germination and seedling growth parameters, CB-9 was supposed to be superior genotype followed by CB-12, CB-10 and CB-14 whereas genotype CB-15 was more susceptible than other genotypes against salinity stress. Res. Agric., Livest. Fish.7(2): 199-207,  August 2020

scholarly journals Dry Matter Production and Seed Yield of Soybean as Affected by Post-Flowering Salinity and Water Stress

2017 ◽  
Vol 19 (2) ◽  
pp. 21-27
Author(s):  
MSA Khan ◽  
JA Chowdhury ◽  
MA Razzaque ◽  
MZ Ali ◽  
SK Paul ◽  
...  
Keyword(s):  
Salt Stress ◽  
Water Stress ◽  
Seed Yield ◽  
Agricultural Research ◽  
Dry Weight ◽  
Yield Reduction ◽  
Growth Stages ◽  
Stress Treatment ◽  
Root Dry Weight ◽  
Shoot Dry Weight

The experiment was conducted in a vinyl house of the Agronomy Division, Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur, during rabi season of 2015-2016 to evaluate the sensitivity of different post-flowering growth stages of soybean to salinity (100 mM NaCl) and water stress (70% depletion of available water) imposed at 4th to 6th, 6th to 8th, 8th to 10th and 10th to 12th wees after emergence. Shoot dry weight wa found more sensitive to salt and water stress than root dry weight at all the post flowering growth stages. The highest relative shoot dry weight (91.47%) and relative root dry weight (95.58%) were recorded from salt and water stressed plants, respectively when both the treatments imposed at 4th to 6th weeks after emergence. The highest seed yield (10.47 g plant-1 ) was obtained from the control treatment followed by that (8.68 g plant-1) under salt stress treatment imposed at 10th to 12th weeks after emergence. Contrary, the lowest seed yield of 0.69 g plant-1 was obtained from the salt stress treatment imposed at 4th to 6th weeks after emergence. Among the stages, 4th to 6th weeks after emergence of soybean was found the most sensitive to salt stress in relation to seed yield reduction. The salt stress imposed at 6th to 8th weeks after emergence was also found damaging for seed yield production.Bangladesh Agron. J. 2016 19(2): 21-27

scholarly journals Determination of germination and seedling growth parameters of rice (Oryza sativa L.) varieties under stress conditions

2020 ◽  
Vol 12 (3) ◽  
pp. 693-701
Author(s):  
Fatih ÖNER ◽  
Ayşe Ö. Ş. SOYSAL
Keyword(s):  
Oryza Sativa ◽  
Salt Stress ◽  
Growth Parameters ◽  
Oryza Sativa L ◽  
Germination Rate ◽  
Dry Weight ◽  
Germination Percentage ◽  
Abiotic Factor ◽  
Rice Varieties ◽  
Stress Levels

Rice (Oryza sativa L.) is an important food for more than half of the world’s population. Globally, rice is grown on approximately 160 million hectares with an average annual production of 740.96 million tonnes. Salinity is an important abiotic factor for germination. In this study rice varieties were analysed for salt stress tolerance at germination growth stage. The response of eight rice varieties against six (0, 25, 50, 75, 100, 150 mM NaCl) salinity levels were studied at germination stage. Seeds of eight rice varieties (‘Yatkin’, ‘Miss-2013 Passali’, ‘Kale’, ‘Manyas Yildizi’, ‘Efe’, ‘Biga Incisi’ and ‘Osmancik-97’) were kept under six salt stress levels. Number of seeds germinated (number), germination rate (%), average germination time, fresh and dry weight of germinated seeds (g), fresh and dry weight of the coleoptile (g), fresh and dry weight of the radicle (g), the length of the coleoptile and radicle (mm) were recorded. The results showed that with increasing salt stress, germination in all the varieties was delayed. The increase in salt stress also reduced every measured trait significantly in all the varieties. Maximum germination percentage (100%) was observed in ‘Biga Incisi’ under all the salt stress levels. Our research data would be helpful for identification of the tolerant varieties which can be studied further in terms of economically.

scholarly journals Effect of different levels of drought stress on the germination and seedling growth parameters of three wheat cultivars seeds

2019 ◽  
pp. 277-290
Author(s):  
Abdalla M. A. Mansour ◽  
Twfeik Elbagrmi
Keyword(s):  
Drought Stress ◽  
Seedling Growth ◽  
Growth Parameters ◽  
Germination Rate ◽  
Dry Weight ◽  
Triticum Aestivum L ◽  
Wheat Varieties ◽  
Treatment Comparison ◽  
Germination Process ◽  
Germination Parameters

Seed germination of three varieties of Wheat (Triticum aestivum L.) CONDOR, SERI and T.R. evaluated under 5 drought levels (0.0 mPa (control),-0.3 mPa, -0.6 mPa, -0.9 mPa and -1.2 mPa). We used polyethylene glycol (PEG6000) to make drought stress conditions. Germinated seeds were counted daily up to 14 days under laboratory conditions. Percentage and mean germination time, coefficients of germination, mean germination rate, and uncertainty of germination process as germination parameters. Shoots and roots length; fresh, dry weight of shoots and roots, leaves and roots number, the surface area of leaves as seedling growth parameters were studied. The data was analyzed statistically using SPSS software, to identify significant differences among wheat varieties and among treatment. Comparison between means showed that the highest value for most of germination parameters recorded for SERI variety followed by T.R., and most of seedling growth parameters were recorded for T.R. followed by SERI. The results determined that seeds of all varieties germinate well in the lowest concentration of PEG. Increase the concentration of PEG affect all germination and seedling growth parameters.

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