Improvement of eggplant seed germination and seedling emergence at low temperature by seed priming with incorporation SA into KNO3 solution

2011 ◽  
Vol 5 (4) ◽  
pp. 534-537 ◽  
Author(s):  
Yanping Zhang ◽  
Haihe Liu ◽  
Shuxing Shen ◽  
Xine Zhang
Keyword(s):  
Seed Germination ◽  
Low Temperature ◽  
Seedling Emergence ◽  
Seed Priming

Seed germination and seedling emergence of threehorn bedstraw (Galium tricornutum)

Weed Science ◽  
2006 ◽  
Vol 54 (5) ◽  
pp. 867-872 ◽  
Author(s):  
Bhagirath S. Chauhan ◽  
Gurjeet Gill ◽  
Christopher Preston
Keyword(s):  
Salt Stress ◽  
Seed Germination ◽  
Low Temperature ◽  
Osmotic Stress ◽  
Weed Control ◽  
Seedling Emergence ◽  
Soil Surface ◽  
Control Programs ◽  
Field Crops ◽  
Winter Crops

Threehorn bedstraw is an important dicotyledonous weed of winter crops in southern Australia, which can be difficult to control in some field crops. Knowledge of the germination ecology of this weed would facilitate development of effective weed control programs. Seed germination in the laboratory was greater for seeds that after-ripened while buried in the soil relative to those that after-ripened on the soil surface. The timing of greatest seed germination in the laboratory was found to coincide with the period of low temperature in the field. Seed germination of threehorn bedstraw was moderately sensitive to salt stress but moderately tolerant to osmotic stress. Seeds of threehorn bedstraw germinated over a broad range of pH from 4 to 10. No seedlings emerged from seeds placed on the soil surface. Maximum seedling emergence occurred at depths of 1 to 2 cm (89 to 91%) and declined at greater depths.

scholarly journals Ascorbic Acid Priming Enhances Seed Germination and Seedling Growth of Winter Wheat under Low Temperature Due to Late Sowing in Pakistan

Agronomy ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 757 ◽  
Author(s):  
Tariq Shah ◽  
Sadia Latif ◽  
Hamad Khan ◽  
Fazal Munsif ◽  
Lixiao Nie
Keyword(s):  
Ascorbic Acid ◽  
Seed Germination ◽  
Low Temperature ◽  
Winter Wheat ◽  
Block Design ◽  
Seed Priming ◽  
Limiting Factor ◽  
Antioxidant Enzyme Activities ◽  
Chlorophyll Contents ◽  
Late Sowing

Poor seed germination is a crucial yield-limiting factor when winter wheat is sown under low temperature. The objective of this study was to evaluate the role of ascorbic acid (AsA) in the extenuation of the harmful effects of low temperature at early and reproductive stages of wheat during 2016–2017 (15 November to 15 December). A two-year experiment was conducted using a randomized complete block design with split plot arrangement and with three replicates. Sowing dates (15 November and 15 December) were allotted to the main plot while seed priming (control, hydro-priming, and AsA priming) were allotted to the sub-plot. Results demonstrated that AsA priming significantly boosted different yield characteristics including chlorophyll content, tillers per unit area, number of grains per spike, and 1000-grain weight, contributing higher productivity and biomass during 2016–2017. The results further revealed that AsA could induce the up-regulation of diverse antioxidants (super oxide dismutase (SOD), peroxidase (POD), and catalase (CAT)), thus offsetting the adverse effects of sub-supra optimum temperatures of late sowing wheat. It is therefore concluded in this work that AsA priming enhances stand establishment, yield and yield-related traits, antioxidant enzyme activities, and chlorophyll contents when wheat is sown under low temperature.

Enhancement of Canola Seed Germination and Seedling Emergence at Low Temperature by Priming

Crop Science ◽  
1994 ◽  
Vol 34 (6) ◽  
pp. 1589-1593 ◽  
Author(s):  
Guo‐Hua Zheng ◽  
Ronald W. Wilen ◽  
Alfred E. Slinkard ◽  
Lawrence V. Gusta
Keyword(s):  
Seed Germination ◽  
Low Temperature ◽  
Seedling Emergence ◽  
Canola Seed

AN ATTEMPT TO IMPROVE SWEET CORN SEED GERMINATION UNDER LOW TEMPERATURE CONDITIONS BY USING SEED PRIMING

2010 ◽  
Vol 1 (2) ◽  
pp. 171-181 ◽  
Author(s):  
S. El-Saifi ◽  
H. Ahmed ◽  
M. Morsi ◽  
Sawsan Hasan ◽  
Rowaa El-Shatoury
Keyword(s):  
Seed Germination ◽  
Low Temperature ◽  
Sweet Corn ◽  
Seed Priming ◽  
Corn Seed ◽  
Temperature Conditions

scholarly journals Enhancement of Tainan 9 Peanut Seed Storability and Germination under Low Temperature

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Parinee Jeammuangpuk ◽  
Parichart Promchote ◽  
Juangjun Duangpatra ◽  
Tanapon Chaisan ◽  
Damrongvudhi Onwimol ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Low Temperature ◽  
Seed Quality ◽  
Seedling Emergence ◽  
Storage Period ◽  
Seed Priming ◽  
Seed Vigor ◽  
Peanut Seed ◽  
Temperature Conditions ◽  
Before And After

Low temperature condition during December to January can limit seed emergence and seedling establishment for peanut production in Thailand. The objective of this study was to determine the effects of peanut seed priming on seed germination and vigor under optimal and low temperature conditions before and after 9 months of storage. Tainan 9 peanut seeds were primed with salicylic acid (SA), ascorbate (ASA), CaCl2, or chitosan and tested for germination at 25°C (optimal temperature) and 15°C (low temperature) before and after a 9-month storage period. Seed priming with 50 mg·L−1 SA and 50 mg·L−1 ASA for 12 hours before germinating improved germination at 15°C when compared to untreated seeds both before and after 9-month storage. The high seed quality, illustrated by high germination percentage, high seed vigor, and low mean germination time related to the low autoxidation substrates: lipoxygenase (LOX), malondialdehyde (MDA), and high antioxidants: superoxide dismutase (SOD) and catalase (CAT). It suggests that peanut seed priming with salicylic acid and/or ascorbate can improve seedling emergence and growth under low temperature conditions.

​Physiological, Biochemical and Molecular Mechanisms of Seed Priming: A Review

2021 ◽  
Author(s):  
A. Diya ◽  
R. Beena ◽  
V.G. Jayalekshmy
Keyword(s):  
Seed Germination ◽  
Molecular Mechanisms ◽  
Seed Quality ◽  
Seedling Emergence ◽  
Cost Effective ◽  
Seed Priming ◽  
Critical Parameters ◽  
High Yield ◽  
Wide Range ◽  
Sowing Seed

Legumes being a major source of protein have a wide range of economic importance. But the major constraints in growing legumes are poor germination, seedling emergence, non uniform stand establishment and crop mortality leading to lower pulse productivity. Thus, pre-sowing seed treatments are critical parameters which attribute to efficient plant growth and high yield. Uniform seed germination, seedling growth and uniform establishment are the critical stages during the growth of crops. Seed priming is a very promising presowing treatment employed to improve seed germination, better crop establishment, enhance the seed quality and induces tolerance against biotic and abiotic stresses in plants thereby providing a balanced healthy diet to the citizens. Priming is a cost effective and feasible strategy involving controlled hydration of seeds followed by drying to stimulate the pre-germinative metabolic activities to occur promoting rapid germination of seedlings, break dormancy and enhance crop yield. Enzymatic, metabolic and biochemical processes of the primed seeds attributes to rapid and uniform seedling emergence. Seed priming methods comprises of conventional methods including hydro priming, osmopriming, biopriming, chemical priming and the advanced methods including nano priming and priming with physical agents. In this review paper, the underlying physiological, biochemical and molecular aspects of priming in pulses were discussed.

Enhancing the germination of three fodder shrubs (Atriplex amnicola, A. nummularia, A. undulata; Chenopodiaceae): implications for the optimisation of field establishment

2006 ◽  
Vol 57 (12) ◽  
pp. 1279 ◽  
Author(s):  
J. C. Stevens ◽  
E. G. Barrett-Lennard ◽  
K. W. Dixon
Keyword(s):  
Salicylic Acid ◽  
Seed Germination ◽  
Gibberellic Acid ◽  
Seedling Emergence ◽  
Seed Priming ◽  
Germination Percentage ◽  
Controlled Conditions ◽  
Field Emergence ◽  
Signalling Compounds ◽  
Germination Requirements

Saltbush (Atriplex) species are widely grown in Australia as saltland pastures. Direct seeding practices for saltbush currently result in asynchronous and unreliable seedling establishment (5% successful establishment is not uncommon from field-sown seed). In part this may stem from a limited understanding of Atriplex seed germination requirements. This paper presents findings with 3 Atriplex species, A. amnicola (Paul G. Wilson.), A. nummularia (Lindl.), and A. undulata (D. Dietr), each of which differs in germination characteristics. For A. amnicola, the presence of light (and artificial substitution of light by 1000 ppm gibberellic acid) improved germination under controlled conditions and resulted in a 4-fold increase (70% total emergence) in field emergence of seedlings. For A. undulata, removing bracteoles increased germination under controlled conditions (~15%), with a 1.5-fold improvement in field seedling emergence (55% final emergence); however, seed priming or gibberellic acid application had no significant effect. In contrast, for A. nummularia, bracteole removal and light had minor positive effects on germination under controlled conditions, but this did not translate into improved emergence in soil or in the field. Under –0.5 MPa NaCl stress, application of gibberellic acid, salicylic acid, or kinetin to the germination medium significantly increased the final germination percentage of A. amnicola seeds (58, 16, and 14%, respectively) and improved the rate at which seeds germinated. All plant signalling compounds significantly increased final germination percentage and germination rate of A. undulata, albeit with a <10% increase at –0.5 MPa NaCl. Priming seeds with plant signalling compounds had similar effects on seed germination under low water potentials compared to direct treatment of the germination media. The effects of seed priming on Atriplex seedling emergence from saline soils varied among species. Priming with water significantly increased emergence percentage of A. amnicola but had no effect on A. nummularia and A. undulata. Gibberellic acid improved A. amnicola germination parameters only, whereas salicylic acid and kinetin improved the rate of emergence in all 3 species at various levels of salinity. This study suggests that a basic understanding of seed dormancy and germination requirements has the potential to substantially improve field emergence of saltbush species.

Seed Germination and Seedling Emergence of Blackgrass (Alopecurus myosuroides) as Affected by Non–Target-Site Herbicide Resistance

Weed Science ◽  
2017 ◽  
Vol 65 (6) ◽  
pp. 732-742 ◽  
Author(s):  
Eshagh Keshtkar ◽  
Solvejg K. Mathiassen ◽  
Roland Beffa ◽  
Per Kudsk
Keyword(s):  
Seed Germination ◽  
Low Temperature ◽  
Herbicide Resistance ◽  
Seedling Emergence ◽  
Target Site ◽  
Fitness Cost ◽  
Burial Depth ◽  
Deep Soil ◽  
Soil Cultivation ◽  
Alopecurus Myosuroides

Seedling emergence traits of susceptible (S) and resistant (R) blackgrass subpopulations isolated from a single non–target-site resistant (NTSR) population were studied in controlled conditions. The seedling emergence of the R subpopulation was lower and slower than that of the S subpopulation, especially at low temperature and deep burial. The burial depth inhibiting final emergence by 50% for the R subpopulation was significantly lower than that of the S subpopulation at low temperature. The present study revealed that under suboptimal conditions the NTSR loci conferring herbicide resistance were correlated with a fitness cost in relation to seedling emergence traits. The results suggest that deep soil cultivation and delayed sowing of autumn-sown crops can hamper germination of the R more than of the S subpopulation and thus potentially reduce the prevalence of the R subpopulation in the blackgrass population.

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