IMPROVEMENT OF TOMATO SEED LONGEVITY USING SOME DRY SEED PRE-STORAGE TREATMENTS
Keywords:
Seed treatment, Probit model, Seed deterioration, seed longevity, Solanum lycopersicumAbstract
Pre-storage treatment to retard seed deterioration could either involve application of synthetic chemicals or plant/organic products. This study was conducted to determine the efficacy of some organic dry seed treatments and inorganic chemical treatments on the viability of stored seeds of four tomato (Solanum lycopersicum) varieties. The study was a factorial experiment fixed in completely randomized design. It comprised of four tomato varieties (Roma, UC-82, 2-lobes and 3-lobes) and five dry seed treatment materials (neem leaves, scent leaves, red chili, bleaching and Apron plus powders) in three replicates. Seeds stored without any treatment were used as the control. The tomato seeds were stored for 240 days under ambient condition (average temperature 30ºC and 75% relative humidity). Half-life of the stored seeds ranged from 286 to 2105 days. Generally, organic treatment doubled the longevity when compared to the control treatment. Performance of seed treatments depended on tomato seed variety. Use of neem leaf and scent leaf powders had greater potentials to replace the commercial inorganic seed treatment materials for tomato seed preservation under the same environmental conditions.
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