scholarly journals Gibberellin response in the embryo epidermis regulates germination uniformity in response to seed priming

2018 ◽  
Author(s):  
Jack Mitchell ◽  
Nur K. Mukhtar ◽  
Isobel Skinner ◽  
George W. Bassel
Keyword(s):  
Seed Germination ◽  
Food Production ◽  
Production Systems ◽  
Early Stage ◽  
Seed Priming ◽  
Primary Objective ◽  
Cellular Targets ◽  
Harvest Dates ◽  
Genetically Manipulated ◽  
Ga Response

ABSTRACTUniformity in seed germination remains a primary objective in plant-based food production systems, ensuring predictable and synchronized harvest dates, while suppressing weeds. Treatments including priming can be used to increase germination uniformity and increase the value of commercial seeds. Despite the economic and agronomic importance of seed enhancement treatments, little is known as to how they work at a mechanistic level. Using a combination of molecular genetics and microscopy, we established that hydropriming limits embryo growth genetic programs at an early stage of germination. Conversely, gibberellin (GA) and abscisic acid (ABA)-associated molecular processes progress to later stages of this developmental chronology. The response to GA was specifically affected in the epidermis of germinating embryos in response to hydropriming based on reporter gene expression. The reduction of GA response specifically in the embryo epidermis resulted in increased uniformity of seed germination following hydropriming relative to control seeds. This represents the identification of both a molecular signalling pathway and cell type that are acting to enhance the agronomic germination properties of seed populations. This provides molecular and cellular targets which may be genetically manipulated to enhance seed germination and food production in agronomic species.

Phosphorus: Past History and Contributions to the Global Food Supply

2019 ◽  
Vol 103 (1) ◽  
pp. 6-8 ◽  
Author(s):  
Terry Roberts
Keyword(s):  
Food Security ◽  
Food Supply ◽  
Food Production ◽  
Production Systems ◽  
Past History ◽  
Phosphate Fertilizer ◽  
Global Food ◽  
Global Food Supply

Since its early rudimentary forms, phosphate fertilizer has developed in step with our understanding of successful food production systems. Recognized as essential to life, the responsible use P in agriculture remains key to food security.

scholarly journals Sustainability Analysis of Interconnected Food Production Systems via Theory of Barriers

2020 ◽  
Vol 53 (2) ◽  
pp. 15765-15770
Author(s):  
Tim Aschenbruck ◽  
Willem Esterhuizen ◽  
Murali Padmanabha ◽  
Stefan Streif
Keyword(s):  
Food Production ◽  
Production Systems ◽  
Sustainability Analysis

scholarly journals Seed priming for increased seed germination and enhanced seedling vigor of winter rice

2021 ◽  
Vol 756 (1) ◽  
pp. 012047
Author(s):  
M P Anwar ◽  
R Jahan ◽  
M R Rahman ◽  
A K M M Islam ◽  
F M J Uddin
Keyword(s):  
Seed Germination ◽  
Seed Priming ◽  
Seedling Vigor

scholarly journals Decision aiding handbooks for managing contaminated food production systems, drinking water and inhabited areas in Europe

2010 ◽  
Vol 45 (5) ◽  
pp. S23-S37 ◽  
Author(s):  
A.F. Nisbet ◽  
J. Brown ◽  
B.J. Howard ◽  
N.A. Beresford ◽  
H. Ollagnon ◽  
...  
Keyword(s):  
Drinking Water ◽  
Food Production ◽  
Production Systems ◽  
Decision Aiding ◽  
Contaminated Food

scholarly journals Accelerating Seed Germination and Juvenile Growth of Sorghum (Sorghum bicolor L. Moench) to Manage Climate Variability through Hydro-Priming

Atmosphere ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 419
Author(s):  
Siaka Dembélé ◽  
Robert B. Zougmoré ◽  
Adama Coulibaly ◽  
John P. A. Lamers ◽  
Jonathan P. Tetteh
Keyword(s):  
Seed Germination ◽  
Climate Variability ◽  
Germination Rate ◽  
Dry Weight ◽  
Seed Priming ◽  
Seedling Development ◽  
Hot Water ◽  
Crop Failure ◽  
Simple Method ◽  
Early Season

Agriculture in Mali, a country in Sahelian West Africa, strongly depends on rainfall and concurrently has a low adaptive capacity, making it consequently one of the most vulnerable regions to climate change worldwide. Since early-season drought limits crop germination, and hence growth, ultimately yield during rain-fed depending on production is commonly experienced nowadays in Mali. Germination and establishment of key crops such as the staple sorghum could be improved by seed priming. The effects of hydro-priming with different water sources (e.g., distilled, tap, rain, river, well water) were evaluated respectively for three priming time durations in tepid e.g., at 25 °C (4, 8, and 12 h) and by hot water at 70 °C (in contrast to 10, 20, and 30 min.) in 2014 and 2015. Seed germination and seedling development of nine sorghum genotypes were monitored. Compared to non-primed seed treatments, hydro-priming significantly [p = 0.01] improved final germination percentage, germination rate index, total seedling length, root length, root vigor index, shoot length, and seedling dry weight. The priming with water from wells and rivers resulted in significant higher seed germination (85%) and seedling development, compared to the three other sources of water. Seed germination rate, uniformity, and speed were enhanced by hydro-priming also. It is argued that hydro-priming is a safe and simple method that effectively improve seed germination and seedling development of sorghum. If used in crop fields, the above most promising genotypes may contribute to managing early season drought and avoid failure of seed germination and crop failure in high climate variability contexts.

Potential of Probiotics as Alternative Sources for Antibiotics in Food Production Systems

2022 ◽  
pp. 172-185
Author(s):  
Sarina Pradhan Thapa ◽  
Sushil Koirala ◽  
Anil Kumar Anal
Keyword(s):  
Food Production ◽  
Production Systems ◽  
Alternative Sources

Ecoagriculture for a Sustainable Food Future

2021 ◽  
Author(s):  
Nicole Chalmer
Keyword(s):  
Environmental Sustainability ◽  
Cultural Sensitivity ◽  
Food Production ◽  
Food Systems ◽  
Production Systems ◽  
Historical Context ◽  
Agricultural Practices ◽  
Constant Input ◽  
Sustainable Food ◽  
European Farming

Global food security is dependent on ecologically viable production systems, but current agricultural practices are often at odds with environmental sustainability. Resolving this disparity is a huge task, but there is much that can be learned from traditional food production systems that persisted for thousands of years. Ecoagriculture for a Sustainable Food Future describes the ecological history of food production systems in Australia, showing how Aboriginal food systems collapsed when European farming methods were imposed on bushlands. The industrialised agricultural systems that are now prevalent across the world require constant input of finite resources, and continue to cause destructive environmental change. This book explores the damage that has arisen from farming systems unsuited to their environment, and presents compelling evidence that producing food is an ecological process that needs to be rethought in order to ensure resilient food production into the future. Cultural sensitivity Readers are warned that there may be words, descriptions and terms used in this book that are culturally sensitive, and which might not normally be used in certain public or community contexts. While this information may not reflect current understanding, it is provided by the author in a historical context.

scholarly journals Muskmelon seed germination and seedling development in response to seed priming

2003 ◽  
Vol 60 (1) ◽  
pp. 71-75 ◽  
Author(s):  
Warley Marcos Nascimento
Keyword(s):  
Seed Germination ◽  
Cucumis Melo ◽  
Germination Rate ◽  
Fungal Growth ◽  
Seed Priming ◽  
Seedling Development ◽  
Factors Affecting ◽  
Total Seed ◽  
Cucumis Melo L ◽  
Osmotic Potentials

Important factors affecting seed priming have not been extensively reported in muskmelon (Cucumis melo L.) studies. The optimization of the seed priming technique becomes very important at the commercial scale. Little information has been reported on seedling development of muskmelon subsequent to seed priming. Seeds of muskmelon were primed in darkness at 25°C in different solutions and three osmotic potentials. Seeds were also primed with and without aeration during different periods. In relation to osmotic solutions, an osmotic potential around -1.30 MPa is most adequate for muskmelon priming. Salt solutions gave better germination rate but were deleterious for seed germination, especially at higher osmotic potentials. Aeration of the soaking salt solution gave faster germination at 17°C, and because of the early germination, these treatments probably presented a better seedling development. Deleterious effect on total seed germination was observed for long soaking periods with aeration. Fungal growth increased on seeds primed in aerated solutions. Seeds from priming treatments had a better germination rate and seedling development under 17 and 25°C.

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