Role and Principles of Seed Conditioning

2010 ◽  
pp. 12-22
Keyword(s):  
Seed Conditioning

scholarly journals Seed conditioning of red oak: a recalcitrant North American seed

1998 ◽  
Vol 55 (spe) ◽  
pp. 67-73 ◽  
Author(s):  
D.K. Struve
Keyword(s):  
North American ◽  
Seed Quality ◽  
Quercus Rubra ◽  
Production Systems ◽  
Red Oak ◽  
High Quality ◽  
Stand Establishment ◽  
Conditioning Treatment ◽  
Wide Range ◽  
Seed Conditioning

A ten day aerated water soak was developed as a seed conditioning treatment for red oak (Quercus rubra L.). Conditioned seeds had higher germination completeness, uniformity and speed compared to control seeds. Seeds could be conditioned under a wide range of temperatures and durations. Conditioned seeds were maintained at 7(0)C for 30 days without loss of seed quality. During conditioning, pericarps split in response to seed hydration. Split pericarps could be used as a pre-sowing indicator for high quality seeds. Seed conditioning was ineffective on dormant seeds. Increased crop uniformity and higher stand establishment can be realized by subjecting red oak acorns to an aerated water soak treatment followed by selecting seeds with split pericarps. These results are especially important in container production systems where limited numbers of value seeds are available.

Effects of Temperature and dl-Strigol on Seed Conditioning and Germination of Witchweed (Striga asiatica)1

1988 ◽  
Vol 61 (1) ◽  
pp. 65-72 ◽  
Author(s):  
ANDREW I. HSIAO ◽  
A. DOUGLAS WORSHAM ◽  
DONALD E. MORELAND
Keyword(s):  
Striga Asiatica ◽  
Seed Conditioning ◽  
Effects Of Temperature

Seed Conditioning, Volume 1: Management

2009 ◽  
Author(s):  
Bill R Gregg ◽  
Gary L Billups
Keyword(s):  
Seed Conditioning

Seed Conditioning, Volume 2

2016 ◽  
Author(s):  
Bill Gregg ◽  
Gary Billups
Keyword(s):  
Seed Conditioning

Seed Conditioning, Volume 1: Management

2009 ◽  
Author(s):  
Bill (B Gregg ◽  
Gary Billups
Keyword(s):  
Seed Conditioning

The application of new technologies to seed conditioning

1989 ◽  
Vol 42 (3) ◽  
pp. 193-202 ◽  
Author(s):  
A.G. Berlage ◽  
D.B. Churchill ◽  
T.M. Cooper ◽  
D.M. Bisland
Keyword(s):  
New Technologies ◽  
Seed Conditioning

scholarly journals Improvement of the chilling tolerance of ‘Monika’ cucumber seedlings by short-term temperature and seed conditioning with plant growth regulators

2014 ◽  
Vol 26 (2) ◽  
pp. 109-115
Author(s):  
Krzysztof Górnik
Keyword(s):  
Salicylic Acid ◽  
Plant Growth ◽  
Jasmonic Acid ◽  
Dehydrogenase Activity ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Chilling Tolerance ◽  
Short Term ◽  
Cucumber Seedlings ◽  
Seed Conditioning

ABSTRACT The aim of the present study was to improve the chilling tolerance of cucumber seedlings. The conditioned seeds in solutions of salicylic or jasmonic acid in concentrations of 10-2, 10-3 or 10-4 M or brassinolide in concentrations of 10-6, 10-8 or 10-10 M were subjected to temperature shock of 0, 2.5, 5, 35, 40 or 45°C for 1, 2 or 4 hours. Seedlings with 3 mm roots were chilled at 0°C for three days. The chilling susceptibility was evaluated by measurements of roots lengths, electrolyte leakage and total dehydrogenase activity. The obtained results indicated that cucumber tolerance to chilling conditions depended on the plant growth regulators used during seed imbibition and its concentration as well as the temperature initiating thermal shock and its duration. The highest tolerance to chilling, expressed by the subsequent growth of roots, was observed after seed conditioning in salicylic acid solutions in a concentration of 10-4 M for 16 h at 25°C, then exposed for 4 h to a shock temperature of 5°C. The length of seedling roots after such treatment was over 12 times longer than the control (imbibed in distilled water and not subjected to short-term temperature impact). An increased chilling tolerance of cucumber seedlings may result from enhanced membrane integrity and total dehydrogenase activity. Further research is needed to explain the mechanism of the positive effects of salicylic acid, jasmonic acid or brassinolide application to reduce the injurious effects of chilling on cucumber seedlings.

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