Seed Deterioration Study in Pea, Using Accelerated Ageing Techniques

2001 ◽  
Vol 4 (12) ◽  
pp. 1490-1494 ◽  
Author(s):  
Shakeel Ahmad Jatoi ◽  
Muhammad Afzal . ◽  
Shahzad Nasim . ◽  
Rashid Anwar .
2010 ◽  
Vol 9 (3) ◽  
pp. 158-162 ◽  
Author(s):  
N. Kapoor ◽  
A. Arya ◽  
M.A. Siddiqui ◽  
A. Amir ◽  
H. Kumar

Author(s):  
Shivasharanappa S. Patil ◽  
Ashok S. Sajjan ◽  
N.K. Biradarpatil ◽  
P.U. Krishnaraj ◽  
I.S. Katageri

Background: Accelerated ageing is a method to assess seed storage performance by exposing the seeds to higher temperature and relative humidity to make seeds lose its vigour and viability quickly. The seed physiological parameters are then compared with the natural ageing to derive certain conclusions. But, the molecular pattern of seed deterioration under accelerated ageing varies compared to that of natural ageing.Methods: Chickpea, seed lots of variety JG-11 and Annigeri-1 were subjected to natural ageing in cloth bag with nine per cent initial seed moisture under ambient conditions. Simultaneously, representative sample of same seed lot were also aged at 41oC and 95±2% humidity up to 120 hours.Result: Both the ageing methods had significant negative effect on seed physiological and biochemical quality parameters. The germination potential of seeds tested after 48 hours of accelerated ageing (83.5%) was equal 10 months of natural ageing (85%) in JG-11, while also in Annigeri-1, 48 hours of accelerated ageing (78%) was nearly equal to 10 months of natural ageing (80%). The protein expression analyzed through 2D-PAGE at similar germination potential brought out by two independent ageing methods showed higher protein down regulation ratio (3.4) in accelerated ageing than in natural ageing (3.2) unveiling its rapidity in the seed deterioration process. Therefore, accelerated ageing can be used for predicting chickpea seed longevity.


Author(s):  
S . Poonguzhali

Studies were undertaken at the Department of Seed Science and Technology, Tamil Nadu Agricultural University, Coimbatore using different seed lots of blackgram cv. CO 6 with a view to elicit information on seed invigouration for maintenance of seed quality during storage period. Seeds soaking followed by drying for different durations ranging from 1h, 2h and 3h with different inorganic chemicals viz., Vitamin E (a- tocopherol), Para Amino Benzoic Acid (PABA) and Salicylic Acid at concentrations of 2.5 mM, 5.0 mM and 7.5 mM in 1:1 seed to solution ratio was attempted. The results shows that soaking of varying seed lots of freshly harvested, aged treated and treated aged seeds of blackgram (3 days of accelerated ageing) in low concentrations viz., 2.5 mM, 5.0 mM of salicylic acid followed by drying was effective in controlling seed deterioration and improving seed vigour and viability in all the seed lots.


2017 ◽  
Vol 104 (.1-.4) ◽  
Author(s):  
Kavitha S ◽  
◽  
Menaka C ◽  
Srinivasan S ◽  
Yuvaraj A ◽  
...  

The freshly harvested seeds of maize single cross hybrid TNAU maize hybrid CO 6 were kept under accelerated ageing condition by exposing the seeds to 40°C temperature and 100 per cent relative humidity in order to assess the physical, physiological and biochemical changes taking place during storage. This study revealed that minimum germination of 90 per cent as per the Indian Minimum Seed Certification Standards (IMSCS) was reached on 4th day of accelerated ageing and reached 54 percent on 9th day of accelerated ageing against the initial seed germination of 98 per cent. The moisture content was increased from 10.1 per cent to 15.9 per cent on 9th day of accelerated ageing. The root length, shoot length, dry matter production, vigour index, α-amylase, catalase, peroxidase activity and carbohydrate content were decreased. Whereas electrical conductivity of seed leachate and reducing sugars were increased, while advancing the period of accelerated ageing.


2008 ◽  
Vol 36 (3) ◽  
pp. 524-533
Author(s):  
F.C. Simões ◽  
R. Usberti ◽  
P.D.O. Paiva

2007 ◽  
Vol 35 (2) ◽  
pp. 380-386
Author(s):  
C.F.R. Leeks ◽  
J.G. Hampton ◽  
B.A. McKenzie ◽  
M. Dehghan-Shoar

2013 ◽  
Vol 1 ◽  
pp. 866-872 ◽  
Author(s):  
J.A. Tsanakas ◽  
M. Karoglou ◽  
E.T. Delegou ◽  
P.N. Botsaris ◽  
A. Bakolas ◽  
...  

2012 ◽  
Vol 27 (4) ◽  
pp. 739-749
Author(s):  
Silva Grilj ◽  
Tadeja Muck ◽  
Diana Gregor-Svetec

Abstract The moist heat (80°C and 65% relative humidity) and light (xenon arc lamp) treatments of accelerated ageing were applied to investigate the colour stability of offset and electrophotographic prints on papers made of virgin and I 00% recycled fibres. The prints were evaluated using spectrophotometric measurements and additional colour differences calculations. In addition to the colour differences, the 2D and 3D colour gamuts are presented. The results reveal the different colour stability of prints. The effect depends on the type of accelerated ageing, printing technique, composition of ink and paper characteristics. Moist heat ageing has less influence on colour stability than light ageing. The electrophotographic prints show better ageing resistance than offset prints. The intluence of ink on print light fastness is considerable. Azo pigments in magenta and yellow have lower light fastness than phthalocyanine pigments in cyan or carbon black. The surface coating has an intluence on light fastness of prints. Meanwhile, prints on recycled papers show similar colour stability compared to prints on papers made of virgin fibres


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