Effect of Red Hawm Rice Seed Bio-Priming with Trichoderma harzianum on Seed Germination, Storability and Seedling Growth
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Abstract
Seed priming with Trichoderma harzianum can control plant pathology caused by fungi and promote seed germination and vigor. The primed seed must be used immediately as it rapidly deteriorates during storage. However, seed deterioration also depends on the storage temperature. Therefore, the effect of red jasmine rice seed priming with T. harzianum on seed quality and seedling growth rate during storage for 4 months was studied. The experimental design was 3x2 Factorial in Completely Randomized Design with 2 factors: Factor A representing seed priming (control, distilled water and T. harzianum) and Factor B representing storage condition (temperature 25°C and 10°C). Before and after storage for two months, the result showed that seed moisture content, germination, mean germination time shoot, and root length were not significantly different. After storage for 4 months, the result showed that the primed seed with distilled water and T. Harzianum, and stored at 10°C, had high seed germination (90.50% and 83.00%, respectively), and lower mean germination time (3.45 and 3.35 days, respectively) compared to other treatments. The primed seed with T. harzianum stored at 10°C had the longest shoot (10.19 cm) and root length (5.47 cm), with statistical significance. This study concluded that seed priming with T. harzianum promoted seed germination, average germination time and seedling growth rate. Storing primed seed at 25°C can preserve them for 2 months, while storage at 10°C can prolong preservation for 4 months.
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