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 Early development of corn seedlings primed with synthetic tenorite nanofertilizer

2020 ◽  
Vol 42 ◽  
Author(s):  
Michel Esper Neto ◽  
David W. Britt ◽  
Kyle Alan Jackson ◽  
Alessandro Lucca Braccini ◽  
Tadeu Takeyoshi Inoue ◽  
...  
Keyword(s):  
Seed Germination ◽  
Size Effects ◽  
Seed Priming ◽  
Seedling Development ◽  
Cuo Nanoparticles ◽  
The Other ◽  
Corn Seed ◽  
Cu Toxicity ◽  
Germination And Growth

Abstract: Fertilizer formulation alternatives that avoid unnecessary losses and environmental impacts are being investigated in agricultural management. Seed priming with nanofertilizers prior to planting, reduces concerns about non-target dispersion; however, priming formulations and concentrations must be carefully selected to avoid undesired effects. Here, seed germination and seedling development were evaluated after seed priming with CuO nanoparticles (NPs), CuO bulk and CuCl2. The seeds were immersed in priming solutions of 0, 20, 40, 80 and 160 mg.L−1 Cu for the three Cu sources. Following 8 hours priming, the seeds were evaluated for germination and vigor (first germination count). Root and shoot lengths were measured as well as shoot and root dry biomass. The copper NP did not show any toxic effects on corn seed germination and growth, and also promoted higher biomass when compared to the other Cu sources. On the other hand, CuCl2 primed seeds exhibited Cu-toxicity in roots and shoots for all concentrations tested. Bulk Cu priming results indicated the better role of NPs size effects. These findings support NP-seed priming as an alternative to delivery of essential micronutrients, such as copper, to corn seedlings.

Enhanced Sweet Corn Propagation: Studies on Transplanting Feasibility and Seed Priming

2011 ◽  
Vol 75 (1) ◽  
pp. 31-50 ◽  
Author(s):  
Khalid El-Hamed ◽  
Mohammed Elwan ◽  
Walied Shaban
Keyword(s):  
Sweet Corn ◽  
Seed Priming ◽  
Corn Hybrids ◽  
Growing Media ◽  
Corn Seed ◽  
Root And Shoot Length ◽  
Inherent Problem ◽  
Free Environment ◽  
Seed Propagation ◽  
Disease Free

Enhanced Sweet Corn Propagation: Studies on Transplanting Feasibility and Seed PrimingSweet corn hybrids with high-sugar genotypes (sh2) has inherent problem of low seed emergence and stand in the field. This study was conducted to determine the effect of seed size, tray cell size and growing media components on sweet corn transplant transplanting. Other objectives were to evaluate the effect of priming sweet corn seeds on germination in the field. Bio-priming withTrichodermaandBacillus, osmopriming with KNO3, and hydro-priming with H2O have been tested. The results indicated that transplanting sweet corn is feasible with high quality transplants from seeds that germinate well in disease-free environment. Large sweet corn seeds, large tray cells, and vermiculite-based growing media proved to gave higher germination percentages. While same factors did not show pronounced effect on seedling performance in terms of root and shoot length and fresh weight. In the priming experiment, the bio-priming treatment showed the highest germination of seeds percentage among other priming treatments and the control. Sweet corn seeds treated withBacillus megateriumgerminated 50% higher than seeds treated withTrichodermaspp. as bio-control agents.Aspergillus niger, andPenicilliumrepresented 65% of pathogens responsible for failure of sweet corn seed germination. The results of this study demonstrated the feasibility of enhanced sweet corn seed propagation through transplanting and seed priming to improve emergence and field stand.

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.

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.

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