scholarly journals Alleviate Seed Ageing Effects in Silybum marianum by Application of Hormone Seed Priming

2015 ◽  
Vol 7 (3) ◽  
pp. 316-321
Author(s):  
Seyed Ata SIADAT ◽  
Seyed Amir MOOSAVI ◽  
Mehran SHARAFIZADEH
Keyword(s):  
Seed Germination ◽  
Seed Quality ◽  
Morphological Structure ◽  
Seed Priming ◽  
Silybum Marianum ◽  
Duration Of Treatment ◽  
Seed Vigour ◽  
Germination Characteristics ◽  
Poor Seed ◽  
Seed Ageing

Most of the medicinal plants have seed dormancy or poor seed germination. This is due to their natural compounds or their morphological structure. Existence of such mechanisms makes the seeds able to endure harsh environments, stressful conditions or natural ageing. Different seed enhancement treatments were proposed in order to improve seed germination. In this study, it was examined Silybum marianum seed longevity (0, 48 and 72 hour of ageing) and the response to seed priming when using different concentrations of cytokinin (50, 200, 350 and 500 ppm) and different duration of treatment (8, 12 and 24 hour). Results revealed that ageing could be successfully alleviated using seed priming. Seed ageing significantly affected seed germination and vigour. Application of cytokinin considerably improved seed vigour in aged and non aged seeds. The most effective seed priming treatment was with 500 ppm cytokine, with the duration of 24 hours. In conclusion, it can be recommend the used of plant growth regulators like cytokine, as a good priming agent, to recover losses of seed quality and improve germination characteristics.

Micro-nutrients Seed Priming and rhizobium Coating on Seed Vigour, Crop Growth and Seed Yield in Blackgram (Vigna mungo L.)

2021 ◽  
Author(s):  
S. Kavitha ◽  
P. Srimathi
Keyword(s):  
Seed Germination ◽  
Seed Yield ◽  
Field Experiments ◽  
Seed Quality ◽  
Seed Priming ◽  
Quality Parameters ◽  
Crop Growth ◽  
Seedling Vigour ◽  
Seed Vigour ◽  
Vigour Index

Background: Black gram is the important pulses crop, grown throughout the country; gives low seed yield mainly due to poor management and low soil fertility. Development of suitable technology is essential to enhance productivity. Seed priming is one such effective technology which enhance rapid and uniform emergence to achieve high vigour, leading to better stand establishment and yield. The current research aimed to study micronutrient seed priming and rhizobium coating on seed germination, seedling vigour, crop growth and seed yield in black gram.Methods: Blackgram seeds were primed with 10 different micronutrient solutions with different concentrations and evaluated for its quality parameters to find out suitable seed priming technique. Seeds from two best priming treatments were coated with rhizobium @ 30g/kg of seed and evaluated for its production potential and resultant seed quality under field condition.Result: Seed priming with 0.5% ZnSO4 at 1/3rd seed to solution ratio for 3 hours recorded higher germination (96%) and vigour index (3811) than control which recorded 84% seed germination and 2528 of vigour index under laboratory experiment. Field experiments revealed that, seeds primed with 0.5% ZnSO4 and coated with rhizobium @ 30g per kg of seeds improved seed yield by 13.2% over control. 

scholarly journals Oxidative Stress, Ageing and Methods of Seed Invigoration: An Overview and Perspectives

Agronomy ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 2369
Author(s):  
Ademola Emmanuel Adetunji ◽  
Tomi Lois Adetunji ◽  
Boby Varghese ◽  
Sershen ◽  
Norman W. Pammenter
Keyword(s):  
Seed Quality ◽  
Plant Genetic Resources ◽  
Seed Priming ◽  
Fertilizer Application ◽  
Prolonged Storage ◽  
World Population ◽  
Crop Species ◽  
Seed Vigour ◽  
Changing Climate ◽  
Seed Ageing

The maintenance of seed quality during the long-term conservation of plant genetic resources is crucial for averting the projected food crises that are linked to the changing climate and rising world population. However, ageing-induced loss of seed vigour and viability during storage remains an inevitable process that compromises productivity in several orthodox-seeded crop species. Seed ageing under prolonged storage, which can occur even under optimal conditions, induces several modifications capable of causing loss of intrinsic physiological quality traits, including germination capacity and vigour, and stand establishment. The problems posed by seed ageing have motivated the development of various techniques for mitigating their detrimental effects. These invigoration techniques generally fall within one of two categories: (1) priming or pre-hydrating seeds in a solution for improved post-harvest performance, or (2) post-storage reinvigoration which often involves soaking seeds recovered from storage in a solution. Seed priming methods are generally divided into classical (hydropriming, osmopriming, redox priming, biostimulant priming, etc.) and advanced (nanopriming, magnetopriming and priming using other physical agents) techniques. With the increasing popularity of seed invigoration techniques to achieve the much-desired enhanced productivity and resilience in the face of a changing climate, there is an urgent need to explore these techniques effectively (in addition to other important practices such as plant breeding, fertilizer application, and the control of pests and diseases). This review aims to provide an overview of ageing in orthodox seeds and invigoration techniques that can enhance desirable agronomic and physiological characters.

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 Impact of Organic Seed Priming Amendments and Botanicals on Seed Quality Parameters of French Bean (Phaseolous vulgaris L.)

2021 ◽  
Vol 10 (11) ◽  
pp. 259-265
Author(s):  
Prashant Kumar Rai Kotamarthi Bhavana ◽  
G. M. Lal
Keyword(s):  
Leaf Extract ◽  
Seed Quality ◽  
Low Cost ◽  
Organic Amendments ◽  
Seed Priming ◽  
Quality Parameters ◽  
French Bean ◽  
Distilled Water ◽  
Seed Vigour ◽  
Vigour Index

The current experiment was conducted to evaluate the Performance of Organic amendments and botanical treatments on seed quality parameters of French bean under stimulated environmental conditions. An experiment was conducted in 2021 at postgraduate seed testing laboratory, Department of Genetics and Plant Breeding Naini Agriculture Institute, Sam Higginbottom University of Agriculture Technology and Sciences, Prayagraj. The French bean Cultivar Arka Bold seeds were used for priming. Organic treatments are designated as Panchagavya 2%, 4%,6%,8%, Agniasthra 2%,4%,6%,8% and Botanicals treatments are Tulasi leaf extract 5%, Aloevera leaf extract 5%, Vinca rosea leaf extract 5% and also did hydroprming treatment using distilled water respectively. Seeds were soaked in organic, botanicals and in distilled water for duration of 6 hours followed by shade drying. The results were obtained and it was found that all the treatments showed significant effect on quality parameters. The highest was found in panchgavya of all doses followed by tulasi leaf extract found to be best in Germination percentage, Speed of Germination, Root length, Shoot length, Seedling length, Seed vigour index-I, Seed vigour Index-II compared to control or untreated seeds which indicates the effect of organics and botanicals on physiological processes of the seeds. This study revealed that priming with organic amendments and botanicals can be effective in enhancing the seed quality parameters of french bean and they are low cost, effective and nature friendly and toxic free.

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 Herbage seed lots: are germination data sufficient?

1990 ◽  
pp. 59-64
Author(s):  
J.G. Hampton ◽  
M.J. Hill
Keyword(s):  
New Zealand ◽  
Seed Germination ◽  
Medicago Sativa ◽  
Quality Factor ◽  
Trifolium Repens ◽  
Seed Quality ◽  
Chronological Age ◽  
Seed Vigour ◽  
Store Manager ◽  
Performance Differences

Herbage seed lots of the same chronological age, certification class and germination values often differ in performance in the field, in storage, or both. These performance differences are ascribed to another seed quality factor, seed vigour. Vigour differences have been shown to occur in New Zealand seed lots of Trifolium repens, T. pratense, Medicago sativa, Bromus willdenowii, Cynosurus cristatus and Festuca spp., and are highly likely to occur in all other herbage species. This review of vigour in herbage seed lots discusses the concept, its possible causes, the implications for sowing, storage and export of seed, and how seed lot vigour information might be used by the farmer, seed store manager and seed marketer. Keywords seed vigour, field emergence, storage, export, herbage seed, germination

scholarly journals Effect of Seed Priming Treatments with Panchagavya, Jeevamrutha, Beejamrutha and Leaf Extracts, Sodium Molybdate on Seed Quality Parameters of Field Pea (Pisum sativum)

2021 ◽  
pp. 24-33
Author(s):  
K. Yashwanth Chandra ◽  
Arun Kumar Chaurasia
Keyword(s):  
Root Length ◽  
Leaf Extract ◽  
Seed Quality ◽  
Sodium Molybdate ◽  
Seed Priming ◽  
Quality Parameters ◽  
Leaf Extracts ◽  
Seed Vigour ◽  
Seedling Length ◽  
Vigour Index

The present research study was conducted at the Seed testing laboratory of Sam Higginbottom Institute of Agriculture Technology and Sciences, Prayagraj, Uttar Pradesh in 2020-2021. The research study revealedthat effect of seed priming treatments with Panchagavya, Jeevamrutha, Beejamrutha and leaf extracts, Sodium molybdate on seed quality parameters of field pea was analyzed through Completely Randomized Design (CRD). Organic treatments are designated as Panchagavya 3% and 5%, Jeevamrutha 3% and 5%, Beejamrutha 5% are used as treatment 8Hrs respectively, botanical treatments are Tulasi leaf extract 6%, Lantana camara leaf extract for 6% are used as treatment for duration of 4 hours respectivelyin which the treatment T8- Sodium molybdate (3%) for 3 Hrs exhibited higher mean value for seed germination (76.75%), root length (6.49 cm), shoot length (7.84 cm), seedling length (14.33 cm), seed vigour index -I (1099.68) and Followed by value was exhibited by T6-Tulasi Leaf Extract (6%) with respect of Root length (6.79 cm)Seedling dry weight (1.725 g), Seed Vigour Index II (129.78), T0 (control) with respect of Germination percentage (71.75%) root length (6.30 cm), shoot length (6.60 cm) and seedling length (12.90 cm), seed vigour index I &II (925.60 & 98.13).

Vigna unguiculata seed priming is related to redox status of plumule, radicle and cotyledons

2019 ◽  
Vol 46 (6) ◽  
pp. 584
Author(s):  
Lilya Boucelha ◽  
Réda Djebbar ◽  
Ouzna Abrous-Belbachir
Keyword(s):  
Seed Germination ◽  
Vigna Unguiculata ◽  
Antioxidant Activities ◽  
Seed Priming ◽  
Redox Status ◽  
Plant Production ◽  
Seed Vigour ◽  
Production Of Hydrogen ◽  
Metabolic Activities ◽  
The One

Pre-germination treatments represent the physiological methods that improve plant production by modulating the metabolic activities of germination before the emergence of the radicle. It was suggested that reactive oxygen species (ROS) play a crucial role in signalling seed germination. Our work consisted in studying changes in the redox status in the embryonic axis (radicle and plumule) and in cotyledons of Vigna unguiculata (L.) Walp. non-primed, osmoprimed (30% PEG6000), hydroprimed or twice hydroprimed seeds, by estimating antioxidant activities and production of ROS. Some antioxidant enzymatic activities as well as total non-enzymatic antioxidant capacity were measured. The production of hydrogen peroxide (H2O2) and superoxide anion (O2–) was also assessed by 3,3′-diaminobenzidine (DAB) and nitroblue tetrazolium (NBT) respectively. The results obtained showed, on the one hand, that priming allows activation of antioxidant enzymes, especially in the plumule. On the other hand, these results showed that priming caused an accumulation of ROS in embryonic tissues. This may explain the improvement of seed germination performance according to the oxidative window model. Priming induced changes in the redox environment at the seed level. These changes were closely related to the pre-germination treatments. Indeed, a double cycle of hydration-rehydration induced the broadest spectrum of modifications of the redox status, which would explain the improvement of the seed vigour.

scholarly journals Automation of Seed Priming Technology for Enhanced Seed Vigour of Blackgram Seeds

2021 ◽  
Author(s):  
K. Malarkodi ◽  
T. Vedhapriya ◽  
R. Umarani ◽  
M. Bhaskaran
Keyword(s):  
Seed Quality ◽  
Seed Priming ◽  
Crop Productivity ◽  
Quality Parameters ◽  
Washing Machine ◽  
Seed Vigour ◽  
Original Moisture ◽  
Cent Increase ◽  
Priming Process ◽  
Metabolic Activities

Background: Seed priming technique involves soaking of seeds in priming agent to a point where germination related metabolic activities occur in the seeds followed by drying of imbibed seeds to original moisture to prevent the radical protrusion and facilitate storage of primed seed. Draining of priming agent and drying of large quantity of primed seeds is a laborious and time consuming process. The current study was aimed to standardize automation of seed priming process by utilizing house-hold top loading washing machine. Methods: The top loading washing machine referred to as Seed Priming Cabinet, contained a priming drum with provision for draining water. On completion of the soaking period, the ‘SPIN’ button was pressed by setting the duration of spin drying (1, 2, 3, 4 and 5 min.). Then the seeds were removed from the drum of priming cabinet and subjected to shade drying so as to reach the original moisture content and evaluated for seed quality parameters. Result: The blackgram seed subjected to conventional hydropriming was compared with automatic seed priming for 1, 2, 3, 4 and 5 min. and observed that hydropriming and spin drying for 3 min. was found to be optimum and the per cent increase in germination recorded over control was 18.0 per cent thus suggesting that automation of seed priming technology can be recommended for enhanced seed vigour and crop productivity of blackgram.

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