scholarly journals Screening of chickpea genotypes against salinity stress

2015 ◽  
Vol 39 (4) ◽  
pp. 605-619
Author(s):  
Md Shaheenuzzamn
Keyword(s):  
Root Length ◽  
Dry Matter ◽  
Agricultural Research ◽  
Germination Rate ◽  
Field Evaluation ◽  
Germination Percentage ◽  
Shoot Length ◽  
Culture Solution ◽  
Vigor Index ◽  
Salinity Levels

The experiment was conducted during the period from December 13, 2010 to May 13, 2011 at the Crop Physiology Lab, Agronomy Division, Bangladesh Agricultural Research Institute (BARI). In Hoagland culture solution, 70 (Seventy) genotypes of chickpea were tested during germination and seedling stage at 0, 5, 10 and 15 dS/m salinity levels. Distilled water (0 dS/m) was used as a control. Germination percentage (GP), relative germination percentage (RGP), germination rate (GR), relative germination rate (RGR), root length (RL), relative root length (RRL), shoot length (SL), relative shoot length (RSL), vigor index, total dry matter (TDM) and relative total dry matter (RTDM) were found to be affected by salinity. Genotypes BD-6061, BD-6066 BD-6071, BD- 6060, BD-6067 and BD 6078 performed better at 10 dS/m and survived up to 15 days after germination as evaluated on the basis of germination percentage (GP), relative germination percentage (RGP), total dry matter (TDM) and relative total dry matter (RTDM). These genotypes could be selected for further investigation under pot culture and field evaluation in the saline area. DOI: http://dx.doi.org/10.3329/bjar.v39i4.22539 Bangladesh J. Agril. Res. 39(4): 605-619, December 2014

scholarly journals Rice (Oryza sativa L.) Seed Priming: It’s Effect on Seed Germination and Seedling Emergence of Spring Varieties in Kapilvastu District, Nepal

2021 ◽  
Vol 8 (2) ◽  
pp. 196-201
Author(s):  
Sabita Ghimire ◽  
Hariom Yadav ◽  
Prabesh Acharya ◽  
Raju Kharel
Keyword(s):  
Vitamin C ◽  
Root Length ◽  
Oryza Sativa L ◽  
Tap Water ◽  
Dry Weight ◽  
Seed Priming ◽  
Germination Percentage ◽  
Shoot Length ◽  
Superior Performance ◽  
Vigor Index

This study aimed to determine the effect of seed priming (on-farm, hydro, halo, osmo, vitamin c priming, and hardening) on the germination and seedling growth of spring rice varieties: hardinath-3, hardinath-1, and chaite-5 at ambient room temperature. A factorial completely randomized design (CRD) was carried out with two factors: methods of priming and varieties at agriculture knowledge center (AKC), kapilbastu during march 2020. There were, in total, 21 treatment combinations and four replications. Parameters observed were germination percentage, speed of germination, vigor index, root length, shoot length, fresh weight, and dry weight of rice seedlings. Hardinath-3 had superior performance in terms of germination percentage (95.35 %), vigor index (183.86), root length (11.51 cm) and shoot length (7.39 cm) compared to hardinath-1 and chaite-5; the speed of germination, however, was greater in hardinath-1. Seed hardening - alternate soaking (tap water for 24 hours) and drying - induced higher germination percentage (94.91 %), speed of germination (96.00), and vigor index (197.43) than did other priming methods; germination percentage of vitamin c primed seeds (94.75 %), nevertheless, were at statistical par with hardened seeds. Hardened hardinath-3 seeds were better in regards to germination percentage (97.50 %) and root length (12.92 cm), while the speed of germination (97.50) and vigor index (210.50) was greater in hardened hardinath-1. Vitamin c primed seeds of hardinath-3 and hardinath-1 were finer with dry weight, shoot length, and vigor index. In conclusion, farmers' are suggested to hardened seeds of hardinath-3 before sowing to promote uniform germination and growth.

scholarly journals Seed Priming to Overcome Salinity Stress in Persian Cultivars of Alfalfa (Medicago sativa L.)

2015 ◽  
Vol 7 (1) ◽  
pp. 96-101 ◽  
Author(s):  
Ali SEPEHRI ◽  
Saeed NAJARI ◽  
Hossein Reza ROUHI
Keyword(s):  
Salinity Stress ◽  
Germination Rate ◽  
Seed Priming ◽  
Germination Percentage ◽  
Stress Index ◽  
Randomized Design ◽  
Vigor Index ◽  
Salinity Levels ◽  
Seedling Germination ◽  
Alfalfa Varieties

In order to investigate the effect of hydro-priming on seed germination with distilled water on germination of five Alfalfa cultivars under salinity stress, an experiment was conducted as a factorial experiment based on a completely randomized design with three replications. Seven levels of hydro-priming and salinity of NaCl including prime and non-salinity, prime and 50 mM salinity, prime and 100 mM salinity, prime and 150 mM salinity, prime and 200 mM salinity, prime and 250 mM salinity and without prime and salinity and five alfalfa varieties, including ‘Hamedani’, ‘Isfahani’, ‘Bami’, ‘Yazdi’ and ‘Ghareh Yonjeh’ were used. The results showed that the main effect of prime, salinity and cultivars and their interaction in all studied traits were significantly affected at the 5% probability level. Priming treatments in non-salinity of all cultivars were the highest. In all cultivars, final germination percentage, length and weight of radicle, plumule and seedling, germination rate and time, relative radicle elongation, vigor index and stress index, were significantly improved in response to priming in salinity levels of 50-200 mM, compared to control. Radicle produced higher length and weight than the plumule in hydro- priming and salinity treatments. ‘Hamedani’ cultivar in most of studied characteristics had a better response than others. The lowest response to salinity stress and priming was observed in ‘Yazdi’ cultivar.

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 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 Development of priming technology for enhanced planting value of seeds in kabuli chickpea (Cicer arietinum L.)

2021 ◽  
Vol 13 (2) ◽  
pp. 735-743
Author(s):  
Umesh Hiremath ◽  
Basave Gowda ◽  
Lokesh G.Y . ◽  
B. S. Ganiger
Keyword(s):  
Root Length ◽  
Seed Quality ◽  
Dry Weight ◽  
Germination Percentage ◽  
Quality Parameters ◽  
Shoot Length ◽  
Growth And Yield ◽  
Seedling Vigour ◽  
Seedling Length ◽  
Vigour Index

The continuous rise in global population demands more food production under limited land resources accompanied by climate change. More oversupply of quality seeds to meet ever-growing food demand is a highly challenging task. Seeds with low vigour level limit the growth and yield of crops at varied field conditions. Hence, an experiment was conducted to develop a technique for the fast and homogeneous growth of kabuli chickpea seeds. The priming treatments evaluated in the present study enhanced the various seed quality parameters of kabuli chickpea significantly when compared to control. Hydro-priming for 4 hours (at 20°C) and air drying for 72 hours showed better results compared to rest of the treatments both in fresh seeds which recorded higher first count (66.38%), germination (92.50%) root length (11.85 cm), shoot length (6.16), mean seedling length (18.01), dry seedling weight (747 mg), seedling vigour index-I (1665), higher speed of emergence (0.3992) and old seeds with higher first count (61.88%), germination (74.13%) root length (8.15 cm), shoot length (5.85 cm), mean seedling length (14.00 cm), seedling dry weight (611 mg), seedling vigour index-I (1056), higher speed of emergence (0.3814). The aged seeds have recorded 29 % increase in germination percentage in contrast to 8 percent increases in fresh seeds. Kabuli chickpea seeds could be subjected to hydropriming, an affordable, alternative, and eco-friendly technique for improving seed and seedling vigour of kabuli chickpea.

EFFECTS OF DIFFERENT CONCENTRATIONS OF TITANIUM OXIDE NANOPARTICLES AND BULK ON GERMINATION CHARACTERISTICS AND ANTIOXIDANT ENZYMES ACTIVITY OF AVENA SATIVA L. SEEDS

2021 ◽  
Vol 24 (1) ◽  
Author(s):  
Moein Iranmanesh ◽  
◽  
Abolfazl Beyraghdar ◽  
Homa Mahmoodzadeh ◽  
◽  
...  
Keyword(s):  
Enzyme Activity ◽  
Titanium Oxide ◽  
Germination Percentage ◽  
Shoot Length ◽  
Guaiacol Peroxidase ◽  
Seedling Vigor ◽  
Titanium Oxide Nanoparticles ◽  
Vigor Index ◽  
Germination Characteristics ◽  
Peroxidase Enzyme

The aim of this study is to compare the effects of different concentrations of nano and bulk titanium oxide on germination characteristics and the activity of antioxidant enzymes in Avena Sativa L. The titanium oxide nanoparticles diameter was determined about 40 nm using AFM, DLS, XRD analysis. In this study, based on a completely randomized design, seeds were placed in Petri dishes containing different concentrations of nano and bulk titanium oxide (50, 150, 250, 350 ppm). Three replications were considered for each concentration and the germination factors and antioxidant enzyme activity in the treated plant were compared with the control. The average data were compared using one-way ANOVA analysis and DUNCAN tests. According to the results, the following parameters of seedling vigor index, root length, dry weight, wet weight, guaiacol peroxidase enzyme, and polyphenol oxidase were statistically significant. The highest germination percentage, relative germination percentage, germination rate, weight germination index and shoot length were observed at 250 ppm bulk titanium oxide. In addition, the highest average germination time, seedling vigor index, optimum seedling index, and root length were observed in 50 ppm bulk titanium oxide treatment and the highest shoot length was observed in 250 ppm nano-titanium oxide treatment. In the enzyme activity, the highest activity of guaiacol peroxidase enzyme was observed in 150 ppm bulk titanium oxide treatment and the highest Polyphenol oxidase enzyme activity was observed in bulk titanium oxide 350 ppm treatment.

Evaluation of Herbicidal Potential of Eucalyptus spp for Biological Control of Dactyloctenium aegyptium L.

2021 ◽  
Vol 20 (1) ◽  
pp. 186-191
Author(s):  
Amal Ehtaiwesh
Keyword(s):  
Foliar Application ◽  
Growth Traits ◽  
Negative Impact ◽  
Inhibitory Effect ◽  
Germination Percentage ◽  
Shoot Length ◽  
Dactyloctenium Aegyptium ◽  
Vigor Index ◽  
Root And Shoot Length ◽  
Germination Traits

Pots culture experiment was conducted to evaluates the herbicidal potential of Eucalyptus spp. (aceae) on growth of Dactyloctenium aegyptium L. (Poaceae). Leaves extract with concentrations of 10, 20 and 40% of Eucalyptus plant were applied as soil and foliar application to seeds and seedlings of D. aegyptium species.  The result indicated that the application of Eucalyptus leaves extracts caused significant reduction in germination traits, root and shoot length, seedling fresh and dry weights. Also, the result revealed that the Inhibitory effect of Eucalyptus extract on D. aegyptium L was more noticeable in plant growth traits than on germination traits. Results show that among the different concentration of Eucalyptus leave extracts used in this study, 40% was the most toxic and caused the significant effect on germination and growth traits of Dactyloctenium aegyptium. Application of 40% of Eucalyptus leave extract decreased germination percentage by 30%, mean daily germination by 45%, shoot length by 38%. root length by 54%, number of branches by 61%, number of leavesby59%, seedling fresh weights by 23%, seedling dry weights by 62% and seedling vigor index by 60%. The results of this study concluded that the use of Eucalyptus plants have the potential to be developed further as a bio-herbicide system to control weed such as Dactyloctenium aegyptium L. However, more researches are needed to evaluate the negative impact of Eucalyptus on crop growth.

scholarly journals Effect of Osmopriming of Boro Rice Seeds on Field Establishment of Seedlings

2013 ◽  
Vol 1 (4) ◽  
pp. 228-232 ◽  
Author(s):  
P. K. Roy ◽  
M. A. R. Sarkar ◽  
S. K. Paul ◽  
A. Dey
Keyword(s):  
Root Length ◽  
Dry Weight ◽  
Shoot Length ◽  
Rice Seed ◽  
Germination Time ◽  
Root Dry Weight ◽  
Shoot Dry Weight ◽  
Vigor Index ◽  
Mean Germination Time ◽  
Germination Vigor

An experiment was conducted at the Seed Laboratory of the Department of Agronomy, Bangladesh Agricultural University, Mymensingh during the period from January to April 2012 to study the effect of osmopriming of Boro rice seed (cv. BRRI dhan29). Seeds were soaked in 1%, 3% and 5% solutions of ZnSO4, KCl and CaCl2 for 24 hours, respectively, with 30 hours incubation at 35°C temperature. Seed quality tests such as percent germination, mean germination time, vigor index, shoot length, root length, shoot dry weight and root dry weight of rice seedlings were measured for all treatments. Population m-2 was also calculated to investigate the field establishment of primed seeds. The highest germination, vigor index, population m-2, shoot length and shoot dry weight at 15 and 30 DAS, root length at 15 DAS, root dry weight at 15 and 30 DAS and the lowest mean germination time was observed from priming of seeds with 3% ZnSO4. Exceptionally, priming with 3% CaCl2 showed the highest root length at 30 DAS. On the contrary, 3% and 5% CaCl2 priming treatment showed the lowest germination, vigor index, population m-2, shoot length and shoot dry weight at 15 and 30 DAS, root length at 15 DAS, root dry weight at 15 and 30 DAS and the highest mean germination time. It can be concluded that rice seed (cv. BRRI dhan29) can be primed with 3% ZnSO4 solution for improving germination and field establishment of rice seedlings.DOI: http://dx.doi.org/10.3126/ijasbt.v1i4.9131  Int J Appl Sci Biotechnol, Vol. 1(4): 228-232

scholarly journals Salinity Tolerance of Mungbean Genotypes at Seedling Stage

2018 ◽  
Vol 10 (2) ◽  
pp. 409-416
Author(s):  
Ratri Tri Hapsari ◽  
Trustinah Trustinah
Keyword(s):  
Germination Rate ◽  
Lateral Roots ◽  
Block Design ◽  
Dry Weight ◽  
Germination Percentage ◽  
Seedling Stage ◽  
Fresh Weight ◽  
Vigor Index ◽  
Normal Seedling ◽  
Two Factors

Salinity is a major abiotic stress limiting mungbean production worldwide including Indonesia. Since mungbean plant is very sensitive to salt condition, selection of salinity tolerant genotypes becomes important for mungbean improvement. The objective of this study was to evaluate the tolerance of eight mungbean genotypes to salinity at seedling stage under different levels. The experiment was arranged in a randomized complete block design with two factors (mungbean genotypes and salinity levels) and triplicates. Observation variables were germination percentage, vigor index, germination rate, hypocotyls length, epicotyls length, root length, number of root, seedling fresh weight, and seedling dry weight. The result showed that increasing level of salinity concentration inhibited the speed of germination, germination percentage, vigor index, normal seedling fresh weight, and number of lateral roots. Murai and Vima 1 were identified as tolerant genotypes, while Vima-2 and MLGV 0180 were identified as salinity sensitive genotypes at seedling stage. Currently, mungbean varieties with special characters, such as saline-tolerant is not yet available. The availability of saline-tolerant variety of mungbean is a cheaper and easier technology for farmers to anticipate the expansion of the saline area. The tolerant genotypes may be further tested at the later stage to obtain promising genotype tolerant to salinity that effectively assist mungbean breeding program.

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.

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