scholarly journals The Effect of Hormone Seed Priming Using Gibberellic Acid on Seed Germination Characteristics and Seedling Growth of Coneflower (Echinacea purpurea)

2021 ◽  
Vol 8 (1) ◽  
pp. 173-188
Author(s):  
Farshid Yousefi ◽  
Abdolreza Sihampoosh ◽  
Abdolmahdi Bakhshandeh ◽  
Seyyed Amir Mousavi ◽  
◽  
...  
Keyword(s):  
Seed Germination ◽  
Gibberellic Acid ◽  
Seedling Growth ◽  
Seed Priming ◽  
Echinacea Purpurea ◽  
Germination Characteristics

scholarly journals Seed Priming Improves Seed Germination and Seedling Growth of Isatis indigotica Fort. under Salt Stress

HortScience ◽  
2020 ◽  
Vol 55 (5) ◽  
pp. 647-650
Author(s):  
Xu-Wen Jiang ◽  
Cheng-Ran Zhang ◽  
Wei-Hua Wang ◽  
Guang-Hai Xu ◽  
Hai-Yan Zhang
Keyword(s):  
Salt Stress ◽  
Seed Germination ◽  
Seedling Growth ◽  
Growth Parameters ◽  
Seed Priming ◽  
Germination Percentage ◽  
Seed Vigor ◽  
Antioxidant Enzyme Activities ◽  
Isatis Indigotica ◽  
Germination Characteristics

The effects of CaCl2, GA3, and H2O2 priming on Isatis indigotica Fort. seed germination characteristics, seedling growth parameters, and antioxidant enzyme activities under salt stress were investigated. NaCl had an adverse effect on the germination and seedling performance of I. indigotica. However, these three priming agents alleviated salt stress by increasing the germination percentage, improving seed vigor, accelerating germination velocity, and establishing strong seedlings. The optimal concentrations were 15 g/L for CaCl2, 0.2 g/L for GA3, and 40 mm for H2O2. Seed priming treatments enhanced the activities of antioxidant enzymes in seedlings, such as superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT), under a salt environment, which reduced the oxidative injury caused by salt. Seed priming is a promising technique that can enhance the ability of I. indigotica seed germination when salt is present.

Effect of Priming Techniques on Seed Germination Characteristics of C. Maxima Duch

2011 ◽  
Vol 474-476 ◽  
pp. 36-39 ◽  
Author(s):  
Yong Dong Sun ◽  
Xin Zheng Li ◽  
He Lian Yang ◽  
Li Sun
Keyword(s):  
Polyethylene Glycol ◽  
Seed Germination ◽  
Seed Priming ◽  
Distilled Water ◽  
Nacl Solution ◽  
Peg 6000 ◽  
Germination Process ◽  
Germination Characteristics ◽  
Successful Technique

The present study was conducted to investigate the effect of seed priming techniques on germination characteristics of C. maxima Duch. cultivar (Beiguan). Treatments were combinations of 3 levels of priming (distilled water, NaCl and PEG6000) and non-priming (control) with 3 replications. Concentrations of NaCl solution were 50, 100, 150, 200 mmol•L-1, and polyethylene glycol (PEG) 6000 were 10%, 20%, 30%, 40%, respectively. Seeds were primed using the above priming materials for 24 hours at 20°C in the dark, respectively. The results showed that different priming techniques could have various effects on germination of Beiguan seeds. Hydropriming (distilled water), NaCl priming and PEG6000 priming (10%) all improved the germination characteristics of Beiguan, compared to the control. NaCl priming was more effective than hydropriming and PEG6000 priming and was the most successful technique in this study. These findings indicated that seed priming techniques could accelerate germination process and were simple and cheap, we should propose these methods to farmers.

scholarly journals Effect of pre-germinative treatments on Nothofagus glauca seed germination and seedling growth

2019 ◽  
Vol 49 ◽  
Author(s):  
Ángel Cabello ◽  
Nicolás Espinoza ◽  
Sergio Espinoza ◽  
Antonio Cabrera ◽  
Rómulo Santelices
Keyword(s):  
Seed Germination ◽  
Gibberellic Acid ◽  
Seedling Growth ◽  
Iucn Red List ◽  
Cold Stratification ◽  
Natural Forests ◽  
Sowing Time ◽  
High Germination ◽  
Thiourea Solution ◽  
Quality Stock

Background: Nothofagus glauca (Phil.) Krasser (Nothofagaceae, “Hualo”) is an endemic tree of the Mediterranean zone of Chile. The natural forests in this area have been severely fragmented as a result of human causes such as replacement by agricultural crops and fast-growing tree species. From 1975, these forests have declined from 900,000 ha to 145,000 ha, so it is categorised on the IUCN Red List as ‘vulnerable’. In restoring this ecosystem, efforts should focus, in part, on the propagation of quality stock. However, information on propagation systems is still insufficient. Methods: We aimed to analyse the effect of different pre-germinative treatments and sowing times on seed germination, and seedling growth and quality. The pre-germinative treatments were: (i) cold stratification; (ii) soaking in gibberellic acid (GA3) and thiourea solution; and (iii) nursery cultivation, while the sowing times were July, August and September. Results: A high germination capacity was achieved by: soaking the seeds in GA3 solution irrespective of concentration; stratifying, irrespective of period; or soaking in 7.5 mg L-1 thiourea solution, values significantly varied from that of the control treatments. The sowing time was not relevant in terms of the percentage of germination or seedling development. Stratification at 5°C for 60 days produced the best quality indices for N. glauca seedlings but no significant differences were found in any of the morphological attributes tested as a result of the pre-germinative treatments. Conclusions: The pre-germinative treatments significantly improved the germination and seedlings growth of N. glauca. Cold stratification at 5°C for 60 days is recommended as it produced suitable seedlings for field establishment. Gibberellic acid and thiourea did not produce important effects on seedling growth. Our results suggest the presence of endogenous physiological dormancy of the N. glauca seeds. The results of this study provide important information on propagation and nursery techniques of N. glauca, which can be used in restoration programmes.

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