scholarly journals The Use of Seed Vigour Tests for Predicting Field Emergence

2018 ◽  
Vol 1 (2) ◽  
pp. p93
Author(s):  
Fatima A. Hassan ◽  
Mai M. A. Hassan
Keyword(s):  
Electrical Conductivity ◽  
Field Tests ◽  
Dry Weight ◽  
Germination Percentage ◽  
Seed Vigor ◽  
Acacia Senegal ◽  
Seed Vigour ◽  
Seedling Root ◽  
Cutting Test ◽  
Acacia Mellifera

The general aim of this study was to address the problem of seed vigour testing in Acacia senegal and Acacia mellifera) by studying different seed vigour tests and comparing them to identify the most suitable test for each species. The importance of this study lies in the fact that vigour testing measures the percentage of viable seeds in a sample as well as their ability to produce normal seedlings under less than optimum or adverse growing conditions, similar to those occurring in the field. To achieve this objective, a set of laboratory and field tests were conducted for the two Acacia species. Data collected included: The number of seeds per kilogram, germination percentage, seedling shoot length, seedling root length, seedling root wet and dry weight, seedling shoot wet and dry weight. The cutting test, electrical conductivity tetrazolium test and Hiltner test were employed to determine the seed vigour. The results showed that Acacia mellifera had a high electrical conductivity, indicating its low seed vigour. The electrical conductivity of Acacia senegal was equivalent to that of distilled water, indicating that either the seed coat was intact or no ions were leached from the seeds. Comparison of the various tests suggests that Hiltner test is the most accurate” or “reliable”) test for seed vigor.

scholarly journals Physiological quality of osmoprimed gherkin seeds

2013 ◽  
Vol 35 (3) ◽  
pp. 368-373 ◽  
Author(s):  
Rodrigo de Góes Esperon Reis ◽  
Humberto Pereira da Silva ◽  
José Maria Gomes Neves ◽  
Renato Mendes Guimarães
Keyword(s):  
Electrical Conductivity ◽  
Room Temperature ◽  
Dry Weight ◽  
Potassium Nitrate ◽  
Germination Percentage ◽  
Initial Profile ◽  
Randomized Design ◽  
Physiological Quality ◽  
Osmotic Potentials

It was aimed to verify the effect of different methodologies of osmopriming on physiological quality of gherkin seeds. Prior, it has been characterized the initial profile of the gherkin seeds. Then, the seeds were osmoprimed in gerboxes containing two blotter papers wetted with osmotic solutions in a volume equal to three times the paper dry weight and kept in BOD at 15 °C. After the priming, the seeds were dried at room temperature for 48 hours. Then, the following variables were evaluated: seeds moisture content, percentage of germination, percentage of emergence, emergence speed index and electrical conductivity. The analyses of variances were realized according to a randomized design in a factorial scheme 3 x 2 x 4: three solutes (polyetilene glycol 6000 - PEG, potassium nitrate - KNO3 and PEG + KNO3), two osmotic potentials (-0.55 and -1.10 MPa) and four times of priming (24, 48, 72 and 96 hours), followed by analyses of regression. It is concluded that the priming has no effect on germination and affects positively the vigor of the gherkin seeds lots; osmopriming with potassium nitrate is effective in improving the physiological quality of gherkin seeds lot.

The Relationship between Seed Vigor and Germination Performance under Various Chloride Salts in Pea

2021 ◽  
Author(s):  
G. Kaya
Keyword(s):  
Electrical Conductivity ◽  
Seedling Growth ◽  
Germination Percentage ◽  
Seed Vigor ◽  
Strongly Correlated ◽  
Key Factor ◽  
Mean Germination Time ◽  
Controlled Deterioration ◽  
Chloride Salts ◽  
The Relationship

Background: Salinity is a severe abiotic stress resulting in inhibiting germination, seedling growth of crop plants. Germination performance under salinity depends on seed vigor and genotypic factors. This study aimed to determine if there was a relationship between germination and seedling growth of eight pea cultivars subjected to three chloride salts and the results of seed vigor tests. Methods: Pea cultivars Ambassador, Bolero, Electra, Esprit, Puccet, Rainer, Utrillo and Winner were germinated in the medium with three chloride salts of NaCl, MgCl2 and CaCl2 with the electrical conductivity (EC) of 20 dS m-1. Also germination percentage, mean germination time, controlled deterioration (CD) and electrical conductivity (EC) test were evaluated. Result: The seed vigor of pea cultivars was significantly different and salinity led to a significant decline in parameters of the cultivars. The most hazardous salt was MgCl2, while the least harmful was NaCl. Germination percentage was negatively related with MGT and EC values and EC test was strongly correlated with CD test. Utrillo and Winner were the most sensitive cultivars to MgCl2 and CaCl2. Although germination percentage of Rainer under non-saline was the lowest with 76%, it showed better performance under salinity than Utrillo and Winner. Germination percentage and CD gave a negative significant correlation with NaCl, but MGT and EC associated positively with NaCl. It was concluded that seed vigor should be considered as an indicator for the germination performance of pea seeds under NaCl, whereas genotypic factors play a key factor for tolerance to salinity during germination and early development stages. 

scholarly journals Effect of seed priming with kinetin on germination indices and proline activity of Silybum marianum L. under drought stress conditions

2015 ◽  
Vol 9 (1) ◽  
pp. 6-11
Author(s):  
Abolfazl Masoumi Zavariyan ◽  
Mojtaba Yousefi Rad ◽  
Mohsen Asghari
Keyword(s):  
Drought Stress ◽  
Germination Rate ◽  
Dry Weight ◽  
Seed Priming ◽  
Germination Percentage ◽  
Seed Vigor ◽  
Silybum Marianum ◽  
Randomized Design ◽  
Seedling Length ◽  
Germination Indices

For investigation of the effect of seed priming by kinetin on germination indices and proline activity of Silybum marianum  L. under drought stress, factorial experiment based on completely randomized design with two factor includingdifferent concentrations of kinetin (0, 10 and 20 ppm) and different levels of drought stress including 0, -6 and -12 barat three replicates was carried out. According to the results, drought stress and kinetin individualy cause to decreases of germination percentage, germination rate, seedling length, seed vigor and seedling dry weight but uses of kinetin in drought stress condition improvment of them. Also, drought stress cause to increases of proline content and catalase activity. Therefore, seed priming with 10 ppm kinetin at drought stress was improved the germination indices of Silybum marianum L.DOI: http://dx.doi.org/10.3126/ijls.v9i1.11919 International Journal of Life Sciences Vol.9(1) 2015 6-11

scholarly journals Seedling image analysis and traditional tests to evaluate onion seed vigor

2017 ◽  
Vol 39 (3) ◽  
pp. 216-223 ◽  
Author(s):  
Nayara Roberto Gonçalves ◽  
Silvio Moure Cicero ◽  
Haynna Fernandes Abud
Keyword(s):  
Electrical Conductivity ◽  
Image Analysis ◽  
Imaging System ◽  
Seedling Emergence ◽  
Accelerated Aging ◽  
Germination Percentage ◽  
Seed Vigor ◽  
Seedling Length ◽  
Onion Seed ◽  
Emergence Percentage

Abstract: The aim of this study was to verify the possibility of using computerized seedling image analysis to detect differences in vigor among onion seed lots and to compare this analysis with traditional vigor tests. We used five seed lots of two onion cultivars, Bella Catarina and Bella Vista. The Seed Vigor Imaging System (SVIS®) software was used to process the seedling images and assess seedling length and vigor through seedling uniformity and growth indexes. These determinations were compared to traditional tests used to evaluate onion seed vigor: germination percentage and first germination count, seedling emergence percentage and emergence speed, accelerated aging, and electrical conductivity. Results showed that vigor differences among onion seed lots can be identified using the SVIS® in a manner similar to traditional vigor tests; assessments should be performed at five days after sowing.

scholarly journals Influence of seed priming on germination characteristics of sorghum (Sorghum bicolor L. Moench)

2021 ◽  
Vol 911 (1) ◽  
pp. 012086
Author(s):  
Ramlah Arief ◽  
Fauziah Koes ◽  
Oom Komalasari ◽  
Fatmawati
Keyword(s):  
Seed Quality ◽  
Germination Rate ◽  
Primary Root ◽  
Dry Weight ◽  
Seed Priming ◽  
Germination Percentage ◽  
Quality Parameters ◽  
Seed Vigor ◽  
Germination Characteristics ◽  
Positive Effect

Abstract Seed priming or invigoration is presowing treatments of improving germination aimed to reduce the time from sowing to emergence and improving emergence uniformity. Research on seed priming was conducted Indonesian Cereal Research Institute (ICERI) seed laboratory from January until March 2021 to evaluate the effect of seed priming on sorghum seed vigor. Seed quality parameters includes germination percentages, germination rate, shoot and primary root length, seedling dryweight, Sorghum seed variety of Suri 4 were used as seed material. Results showed that among the priming treatments that give positive effect on germination percentage, germination rate, seedling dry weight were priming treatment with KNO3 1.5%.

scholarly journals Effects of Salinity on Germination Behaviour of Two Paddy Landraces Grown in Chakrata, Dehradun, Uttarakhand, India

Agropedology ◽  
2019 ◽  
Vol 26 (2) ◽  
Author(s):  
Ranbeer Singh Chauhan ◽  
◽  
J.S. Chauhan ◽  
A.S. Rawat ◽  
Dinesh Singh Rawat ◽  
...  
Keyword(s):  
Oryza Sativa L ◽  
Dry Weight ◽  
Germination Percentage ◽  
Tolerance Index ◽  
Seed Vigour ◽  
Weight Percentage ◽  
Germination Ability ◽  
Vigour Index ◽  
Germination Behaviour ◽  
Salt Tolerance Index

Germination ability of seeds varies significantly amongst different varieties of same crop when exposed to the stress. Paddy (Oryza sativa L.) is known to be highly sensitive to salinity during germination and young seedling stages. Present study was aimed to observe the effects of six salinity concentrations (0%, 0.1%, 0.5%, 1%, 1.5% and 2%) on the germination behaviour of two paddy landraces (Chenaphool and Gyasu), frequently grown in Chakrata area of district Dehradun, Uttarakhand. Salinity (>0.1%) was inversely related to final germination percentage, germination energy, plumule dry weight, plumule length, radical dry weight, radical length and speed of germination. Chenaphool landrace showed higher germination and growth (plumule and radical) at 0% salinity (control), while Gyasu landrace at 0.1% salinity level.Dry weight percentage reduction increased with increasing salinity level, while negative correlation was observed between salinity and salt tolerance index and seed vigour index for both the varieties. The study concluded that the long grained, irrigated landrace Chenaphool was more sensitive to salinity in comparison to short grained, non-irrigated landrace Gyassu. Lower salinity conditions have no adverse effects on the germination behaviour of Gyasu landrace.

scholarly journals The Effect of Hydro-Priming on Germination Characteristics, Seedling Growth and Antioxidant Activity of Accelerated Aging Wheat Seeds

2015 ◽  
Vol 47 (4) ◽  
pp. 41-48 ◽  
Author(s):  
E. Ghasemi ◽  
M. Goodarzian Ghahfarokhi ◽  
B. Darvishi ◽  
Z. Heidari Kazafi
Keyword(s):  
Electrical Conductivity ◽  
Peroxidase Activity ◽  
Dry Weight ◽  
Germination Percentage ◽  
Percentage Germination ◽  
Seed Aging ◽  
Seedling Length ◽  
Normal Seedling ◽  
Mean Time ◽  
Aged Seeds

Abstract Seed aging is an important problem in developing countries which seeds stored in inappropriate condition. Delayed germination, reduced normal seedling percentage and changed antioxidant enzymes activity are some indications of aged seeds. Priming is a technique applied before planting and can improve seed characteristics especially under abiotic stress conditions. The main objective of the study was to evaluate aging effect on seed quality and to study the interaction between seed aging and seed priming. A factorial experiment based on completely randomized design with three replicates was conducted. The experimental treatments included cultivar, priming and aging. Results showed that seed aging reduced germination percentage, germination index, seedling length, normal seedling percentage, seedling dry weight, catalase and ascorbate peroxidase activity and increased the germination mean time and electrical conductivity of seeds. The highest germination percentage, germination index, seedling length, normal seedling percentage, seedling dry weight, catalase and ascorbate peroxidase activity and the minimum germination mean time and electrical conductivity of seeds were attained from hydro-priming treatment under non aged condition. Hydro-priming improved aged seeds quality and increased enzymes activity. Therefore, priming is a technique can be applied to improve aged seeds germination and seedling characteristics.

scholarly journals Study of the effectiveness of hydrogen peroxide in improving the germination characteristics of maize seed under water stress

2021 ◽  
Vol 8 (3) ◽  
Author(s):  
Shatha Abd Al-Hassan ◽  
Ahmed Ali Abdul Hadi Hassan
Keyword(s):  
Hydrogen Peroxide ◽  
Water Stress ◽  
Germination Rate ◽  
Dry Weight ◽  
Germination Percentage ◽  
Seed Vigor ◽  
Maize Seedlings ◽  
Maize Seeds ◽  
Vigor Index ◽  
Two Factors

"A factorial experiment was carried out in the lab. college of Agricultural Engineering Science, University of Baghdad Al- Jadiriyah during year of 2017 With the aim of improving the germination properties of Maize variety of Noor under water stress. According to the Completely randomize design (CRD) with three replications were used in both and two factors: first: it included water tensile treatments by exposing the seeds to a solution of polyethylene glycol PEG 6000 with three levels (0, -4 ,-8) Bar, while the second factor with three concentrations of the compound peroxide Hydrogen H2O2 with a concentration of 50% (0, 10 , 20 mg L-1). The results showed that water stress had a significant effect on the characteristics of Maize seedlings, as it reduced the level of water stress (-8) bar, the average germination percentage, Average 80.00%, Root Shoot length, 7.900 , 5.22 (cm), respectively, seedling dry weight 269.9 (mg seedlings-1) and Seed vigor index of drought resistance 0.781,while treatment with compound hydrogen peroxide H2O2 contributed to improving the characteristics of Maize seedlings significantly, as the seed soaking treatment at a concentration of 20 (mg L-1) recorded the highest germination rate of 89.44%, the feather length of 5.90 (cm), and the seedling dry weight 353.6 (mg seedlings-1). Germination and vigor index of drought resistant 1.089. We recommend to soak maize seeds with peroxide Hydrogen H2O2 (10 ) mg L-1 for 24 h before planting, especially under water stress."

scholarly journals Evaluation of Seed Quality of Chickpea (Cicer arietinum L.) Collected from Different Branches

1970 ◽  
Vol 46 (4) ◽  
pp. 507-512
Author(s):  
A Khatun ◽  
MAH Bhuiyan
Keyword(s):  
Seed Quality ◽  
Agricultural Research ◽  
Dry Weight ◽  
Germination Percentage ◽  
Agricultural Research Institute ◽  
Seed Vigour ◽  
Seed Technology ◽  
Moisture Percentage ◽  
Mature Seeds

Mature seeds of three chickpea varieties like BARI Chhola-5, 6 and 8 were collected from three different branches like primary, secondary and tertiary, and were evaluated for quality in the Seed Technology Laboratory, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh during August to September of 2004 and 2005. All the seeds were stored in earthen pot for five months before conducting the laboratory study. Significant variation was observed in all three varieties of chickpea for all the parameters studied except seed vigour. The highest moisture percentage (10.17 in 2004 and 10.18 in 2005), dry weight (0.50 g in 2004 and 0.51 g in 2005) and seed vigour (39.7 in 2004 and 41.6 in 2005) was observed in BARI Chhola-8 and the lowest in BARI Chhola-5. Germination percentage was significantly higher in BARI Chhola-5 (87.6 in 2004 and 88.9 in 2005). Seeds of different branches did not vary significantly for most of the parameters. However, seeds of primary or secondary branches had higher moisture and germination percentage, dry weight of seedling and seed vigour. Interaction effects of varieties and seeds of different branch had no definite trend though non-significant effect was observed in most of the parameters. Keywords: Chickpea; Seed of different branches; Vigour; Moisture; Germination DOI: http://dx.doi.org/10.3329/bjsir.v46i4.9599 BJSIR 2011; 46(4): 507-512

scholarly journals Effects of Fe-Zn-NA chelates priming on the vigour of aged hybrid rice seeds and the maintenance of priming benefits at different storage temperatures

2021 ◽  
Author(s):  
Cheng Lin ◽  
Shanshan Pan ◽  
Weimin Hu ◽  
Yajing Guan ◽  
Jin Hu ◽  
...  
Keyword(s):  
Hybrid Rice ◽  
Storage Temperature ◽  
Dry Weight ◽  
Seed Priming ◽  
Germination Percentage ◽  
Seed Vigour ◽  
Priming Effects ◽  
Shoot Height ◽  
Vigour Index ◽  
Aged Seeds

The effects of seed priming with Fe-Zn-NA chelate (FeSO4+ZnSO4+niacinamide) and the longevity of the beneficial priming effects were investigated for aged seeds of hybrid rice cv. Lingyouhuazhan (LYHZ) and cv. Longxiangyou 130 (LXY130). As compared with untreated and hydroprimed seeds, Fe-Zn-NA chelate priming significantly enhanced germination energy (GE), germination percentage (GP), germination index (GI), vigour index (VI) and normal seedling rate (NSR), and increased seedling shoot height (SH) and seedling dry weight (DW) in both cultivars. After priming with Fe-Zn-NA chelates, the GP of LYHZ was 96.0%, which was 12.7 and 12.0% higher than hydroprimed and non-primed seeds, respectively. Similarly, the GP of LXY130 was 89.5%, significantly higher than the hydroprimed and non-primed seeds (by 11.5 and 10.0%, respectively). When stored at 25°C, the benefits of Fe-Zn-NA chelate priming on seed vigour and viability was maintained for three months; while after six months storage, the GP of LYHZ and LXY130 was only 48.0 and 34.0%, respectively, which was significantly lower than the non-primed seeds (84.0 and 71.1%). When stored at 15 or 5°C for six months, the germination potential of Fe-Zn-NA chelate-primed seeds was still high. The GP of LYHZ and LXY130 seeds was 94.4% and 77.8%, respectively, after storage at 15°C, and 97.8% and 85.6% after storage at 5°C. In conclusion, the Fe-Zn-NA chelate priming was an effective method to improve the vigour and viability of hybrid rice aged seeds; however, the duration of beneficial priming effects needs to be determined according to the storage temperature.

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