THE ACCURACY OF ACCELERATED AGING TEST FOR EVALUATING THE PHSIOLOGICAL QUALITY OF SEEDS
Mersal, I. (2011). THE ACCURACY OF ACCELERATED AGING TEST FOR EVALUATING THE PHSIOLOGICAL QUALITY OF SEEDS. EKB Journal Management System, 2(9), 1249-1258. doi: 10.21608/jpp.2011.85655
I. F. Mersal. "THE ACCURACY OF ACCELERATED AGING TEST FOR EVALUATING THE PHSIOLOGICAL QUALITY OF SEEDS". EKB Journal Management System, 2, 9, 2011, 1249-1258. doi: 10.21608/jpp.2011.85655
Mersal, I. (2011). 'THE ACCURACY OF ACCELERATED AGING TEST FOR EVALUATING THE PHSIOLOGICAL QUALITY OF SEEDS', EKB Journal Management System, 2(9), pp. 1249-1258. doi: 10.21608/jpp.2011.85655
Mersal, I. THE ACCURACY OF ACCELERATED AGING TEST FOR EVALUATING THE PHSIOLOGICAL QUALITY OF SEEDS. EKB Journal Management System, 2011; 2(9): 1249-1258. doi: 10.21608/jpp.2011.85655

THE ACCURACY OF ACCELERATED AGING TEST FOR EVALUATING THE PHSIOLOGICAL QUALITY OF SEEDS

Journal of Plant Production
Article 12, Volume 2, Issue 9, September 2011, Page 1249-1258  XML PDF (425.32 K)
Document Type: Original Article
DOI: 10.21608/jpp.2011.85655
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Author
I. F. Mersal*
Seed Technology Res. Department, Field Crops Research Institute, ARC
Abstract
Accelerated aging test results were found to be affected by many factors namely;  relative humidity, temperature degrees, exposure periods and seed chemical composition. Therefore, precaution should be taken when utilizing this test for evaluating seed viability. This study was carried out at Seed Technology unit, Mansoura, Dakhlia Governorate during 2010 and 2011 years, to determine the value of accelerated aging test conditions for evaluating seed vigour and its relationship to chemical composition of  the tested seeds (wheat, soybean and sunflower). The main results could be summarized as follows: Conducting the accelerated aging test at the highest  surrounded relative humidity level (100%) led to increasing seed moisture content and the increase was more rapidly comparing to conducting the test with using saturated salt solutions (SSAA)  such as sodium hydroxide (75%Rh.). Increasing temperature degrees during the aging test release seed water absorption specially at saturated relative humidity (100%). Seed moisture contents increased  as the exposure  period to accelerated aging conditions was  increased. Also soybean seed was more sensitive to the accelerated aging conditions especially relative humidity comparing to sunflower and wheat seed. So, the results suggest conducting the accelerated aging test for soybean seed at relative humidity 75% and  temperature degrees not excesses 44Co for 72hour., (100% relative humidity, 41C0  for 72 hour) for wheat and (100% relative humidity, 44C0 for 72 hour) for sunflower.
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