Accelerated aging technique for estimation of sweet-corn seed storability
1986
Chuanpis Aroonrungsikul (Kasetsart Univ., Kamphaengsaen Campus, Nakhonpathom, (Thailand))
A range of exposure periods and temperatures for accelerated aging were examined using an aging chamber, for the sweet-corn variety Thai Supersweet Composit no. 1 DMR. The temperatures and exposure periods were: 41 degree celsius for 72, 96 and 120 hours; 42 degree celsius for 84, 96 and 120 hours; 43 degree celsius for 48, 72 and 96 hours. Relative humidity was maintained in the range 98-100 percent. After the treatments, samples were taken for viability and field establishment studies; the storability of the treated seed was then monitored at two month intervals when kept in 2 mm thick plastic storage bags at ambient temperature. The aging treatment combination which most closely correlated with 6-7 months of open storage was a 48 hours exposure period at 43 degree celsius. This treatment is suggested for the accelerated aging test for sweet corn seed, for determination of seed viability and vigor.
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