scholarly journals Osmo and Hydro Priming Mediated Germination Improvement Under Cold Stress Conditions in Mountain Rye (Secale Montanum)

2012 ◽  
Vol 45 (3) ◽  
pp. 53-62 ◽  
Author(s):  
O. Ansari ◽  
F. Sharif Zadeh
Keyword(s):  
Cold Stress ◽  
Dry Weight ◽  
Seed Priming ◽  
Germination Percentage ◽  
Seedling Vigor ◽  
Vigor Index ◽  
Seedling Length ◽  
Normal Seedling ◽  
Temperature Time ◽  
Secale Montanum

Abstract Seed priming techniques have been used to increase germination, improve germination uniformity and seedling establishment under stressed conditions. Seed priming was used in rye mountain (Secale montanum) to increase seed germination and tolerance on stress exposure (Cold stress). Rye seeds were treated with water (Hydro priming) and polyetelyn glycol 6000 (Osmo priming). The effect of priming was assessed on germination characteristics under cold stress (at 3°C) for 7 days. Analyze of variance for hydro priming showed that temperature × time of priming interaction was significantly (P < 0.01) for all traits under cold stress and for osmo priming showed that Concentration of PEG × Temperature × Time of priming interaction was significantly (P < 0.01) for all traits under cold stress except seedling dry weight (SDW). For hydro priming the highest germination percentage (GP) was attained from hydro priming at 15±1°C for 16 h (70%), whereas the highest normal seedling percentage (NSP) (22.5%), germination index (GI) (8.57), seedling vigor index (SVI) (38.9) and seedling length (SL) (1.7 cm) were in the hydro priming at 10±1°C for 16 h. For osmo priming the highest germination percentage (GP) (80 and 80.5%), normal seedling percentage (NSP) (48 and 45%), seedling vigor index (SVI) (101.26 and 85.25) and seedling length (SL) (2.11 and 1.89 cm) observed in the osmo priming with concentrations of -9 and -15 bar PEG at 15±1°C for 24 h.

scholarly journals The Effect of Halo- and Hydro-Priming on Germination Characteristics of Millet Seeds Under Salinity Stress

2014 ◽  
Vol 47 (2) ◽  
pp. 41-48 ◽  
Author(s):  
M.A. Aghbolaghi ◽  
M. Sedghi
Keyword(s):  
Salinity Stress ◽  
Seedling Emergence ◽  
Dry Weight ◽  
Seed Priming ◽  
Germination Percentage ◽  
Utilization Efficiency ◽  
Seedling Length ◽  
Germination Characteristics ◽  
Normal Seedling ◽  
Four Levels

Abstract Low seed germination and seedling emergence is one of the main problems in saline areas. Seed priming technique has been known as a challenge to improve germination and seedling emergence under different environmental stresses. The objective of this research was to evaluate the effect of seed priming with NaCl and water on growth and seed reserve utilization of millet seeds under salinity stress. Treatments were combinations of four levels of salinity stress (0, ⊟4, ⊟8 and ⊟12 bar) and three levels of seed priming and control with three replicates. Results showed that with increase in salinity stress, germination components such as germination percentage, germination index, mean time to germination, normal seedling percentage, seedling length, seedling dry weight of utilized (mobilized) seed and seed reserve utilization efficiency decreased, but seed priming showed lower reduction. The highest germination characteristics and seed reserve utilization was obtained by halo-priming in control conditions. It is concluded that priming results in improvement in germination components of millet in salinity stress conditions.

scholarly journals Improvement of Germination Characteristics and Enhancement of Antioxidant Enzymes Activity of Safflower (Carthamus tinctorius L.) Aged Seeds by Used of Gibberellin

2015 ◽  
Vol 48 (3) ◽  
pp. 33-41
Author(s):  
M. Khajeh ◽  
S.A. Tabatabaei ◽  
O. Ansari ◽  
F. Sharif Zadeh
Keyword(s):  
Enzyme Activity ◽  
Antioxidant Enzymes ◽  
Ascorbate Peroxidase ◽  
Seed Priming ◽  
Germination Percentage ◽  
Percentage Germination ◽  
Vigor Index ◽  
Seedling Length ◽  
Germination Characteristics ◽  
Normal Seedling

AbstractSeed priming is one of the methods that can be taken to counteract the adverse effects of abiotic stress, also Seed priming treatments have been used to reduce the damage of aging and invigorate their performance in many crops. Objective of this study was to evaluation the effect of gibberellin on germination characteristics and antioxidant enzymes of safflower seeds after aging. Experimental design was a factorial one with complete randomized design with three replications. The first factor was priming by gibberellin (0 and 50 ppm) and non-primed seeds (control) and the secondary factor was combinations of four levels of aging (0, 1, 3 and 5 days of aging, at 43°C). The results showed that the priming and aging effects on germination percentage, germination index, normal seedling percentage, seedling length, vigor index, catalase and ascorbate peroxidase were significant, but on mean time to germination not significant. Results showed that, the highest germination characteristics such as; germination percentage, germination index, normal seedling percentage, seedling length, vigor index, catalase and ascorbate peroxidase were attained from priming by gibberellins, under non aged conditions. Also, our results indicated that seed aging is related to decrease of enzymes activity and may contribute to low seed germination efficiency, also priming increases enzyme activity and increases enzyme activity with priming treatment may contribute to improve germination characteristics. The general decreases in enzyme activity in the seed lowers the respiratory capacity, which in turn lowers both the energy (ATP) and assimilates supply of the germinating seed.

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 Impact of seed size on seeds viability, vigor and storability of Hordeum vulgare (L.)

2018 ◽  
Author(s):  
M. Massimi
Keyword(s):  
Seed Germination ◽  
Seed Size ◽  
Seed Quality ◽  
Accelerated Aging ◽  
Dry Weight ◽  
Germination Percentage ◽  
Seedling Vigor ◽  
Hordeum Vulgare L ◽  
Vigor Index ◽  
The Impact

Seed size may influence seed germination, and seedling vigor. Few investigations are available about the effect of seed size on barley seedling vigor in Jordan. The present study was designed to investigate the impact of seed size on germination percentage, seedling dry weight, seedling vigor index, and germination percentage after accelerated aging in barley. Three seed sizes i.e. large, medium, and small (having diameter of > 2.75 millimeter, 2.5 - 2.75 millimeter, and less than 2.5 millimeter, respectively) were tested in the experiment. Seed quality for different seed size categories was evaluated in the laboratory by measuring seed germination, germination after accelerated aging, as well seedling dry weight and vigor index. Results showed significant differences for large seeds in germination percentages, seedling dry weight and vigor index. It may be concluded that large seed size of barley showed best quality.

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 Temporal variation in seed quality of Indian spinach preserved in different containers

2016 ◽  
Vol 5 (2) ◽  
pp. 51-57 ◽  
Author(s):  
M Kamruzzaman ◽  
S Khatun ◽  
A Rakib ◽  
MI Hoque ◽  
MH Rani
Keyword(s):  
Moisture Content ◽  
Seed Quality ◽  
Initial Moisture Content ◽  
Dry Weight ◽  
Germination Percentage ◽  
Seedling Vigor ◽  
Fresh Weight ◽  
Seed Technology ◽  
Vigor Index

The experiment was conducted to investigate the seed quality of Indian spinach for three months stored at different containers (Plastic pot, polythene bag and cloth bag) during 2013-2014 at Seed Technology Laboratory of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur. The initial moisture content of the seed was 9.89% with 75.00% germination. However, after two months, the seed had a different range of increased moisture content with reduced germination percentage depending upon the packing materials. Among the three containers, seeds stored at cloth bag absorbed more moisture (14.36%) from surrounding atmosphere followed by the moisture content, 12.67% and 11.50% of polythene bag and airtight plastic pot, respectively. Seeds stored at plastic pot, polythene bag and cloth bag exhibited 65.00, 64.00 and 50.00 per cent germination, respectively. Similarly, the fresh weight and dry weight of seedling and seedling vigor were also decreased. The seeds of plastic pot were good in term of germination capacity, fresh and dry weight and vigor index in comparison to those stored at cloth bag and polythene bag.Int. J. Agril. Res. Innov. & Tech. 5 (2): 51-57, December, 2015

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 Evaluation of allelopathic effect of Carthamus Oxyacantha against wheat and maize seed germination

2020 ◽  
Vol 9 (1) ◽  
pp. 814-818
Keyword(s):  
Seed Germination ◽  
Dry Weight ◽  
Germination Percentage ◽  
Allelopathic Effect ◽  
Distilled Water ◽  
Maize Seed ◽  
Fresh Weight ◽  
Vigor Index ◽  
Seedling Length ◽  
Powder Extract

Effect of Carthamusoxyacantha powder aqueous extract on seed germination of Wheat and Maize were studied. Powder extract of 3g, 6g and 9g of concentration were soaked in distilled water for 12 Hrs, 24 Hrs and 36 Hrs of time. The seeds of Wheat and Maize were germinated in Petri dishes. Control was maintained by watering the seeds with distilled water. The highest values for germination percentage, shoot length, root length, fresh weight, dry weight, seedling length, vigor index and seedling weight vigor index were recorded in control of wheat the above parameter decreased with increasing concentration and timing. While in maize highest values for the above parameters were recorded in treatments as compared to control.

scholarly journals Seed Priming Significantly Affects Germination and Post Germination Early Seedling Growth in Okra

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Rima Rima
Keyword(s):  
Root Length ◽  
Dry Weight ◽  
Seed Priming ◽  
Germination Percentage ◽  
Shoot Length ◽  
Seedling Height ◽  
Seedling Vigor ◽  
Commercial Cultivation ◽  
Early Seedling Growth ◽  
Early Seedling

AbstractSeed priming significantly affects germination and post germination emergence in seedling of plants. Okra is an important vegetable plays significant role in human nutrition. However, little information is available regarding effect of seed priming on germination and post germination early vegetative growth. Therefore, a pot experiment was conducted to find out the effect of seed priming on the emergence and seedling vigor in different okra varieties. Six local Bangladeshi okra varieties were primed in water for 24 hours and evaluated their germination and post germination emergence. The varieties were named as V1-V6 (V1 = Flash power, V2 = Durga, V3 = BARI dheros-2, V4 =Okra pornota, V5 =Dandy all green, V6 = Boishakhi). Post priming evaluation was done based on germination percentage, root-shoot length of seedlings, seedling height, and dry weight of seedlings, germination index and speed of germination at different days after sowing (5-15 DAS). Highest germination was observed in V3 (88.00%) and lowest was in V5 (25.33%). Root length was highest in V3 and V4 (8.77cm) and lowest was observed in V2 (5.15cm). Shoot length of the seedlings was highest in V3 (7.94cm) followed by V1 (7.33). Shoot length of the seedlings was lowest in V5 (5.12cm). Seedling height was highest in V3 (16.71cm) which was followed by V6 (16.26cm). The lowest seedling height was observed in V1 (12.50cm). Dry weight of the seedlings was highest in V3 (2.32g) which was followed in V1 (2.26g). The lowest dry weight was observed in V5 (1.99g). The variety V3 performed better in most of the evaluated parameters and suggested for commercial cultivation.

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.

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