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Abstract
Vatica mangachapoi is native to the Dipterocarpaceae family which distributed in the coastal sandy areas of Thua Thien Hue Province and valuable in the restoration of coastal forests of our country, but so far there is a lack of studies on the characteristics of seed sources as well as propagation ability and nursery techniques. This study was conducted to evaluate the seed quality, the ability to propagate from seeds along with some technical measures to take care of seedlings at the nursery stage. Research results show that: The fruit ripening season is August - September. Ripe fruit is yellow-green, spherical in shape. Length x width is 6,2 ± 0,1 x 5,9 ± 0,1 mm. The weight of 1.000 fruits is 156 ± 6 grams and1 kg of fruit has about 6,687 ± 400 seeds. The lowest purity is 88,30%, the percentage of live seeds of the batch of pure seeds was 96%, the percentage of good quality seeds is 80,67%. Seeds germinate from 4-14 days after germination treatment. The lowest germination potential was 77,78%, the lowest germination rate was 89,00% after being harvested from 2-7 days and stored at room temperature from 30 – 310 C. Using 50% shading and enteric substrates. If the pot is newly accreted alluvial soil, after 6 months, the lowest survival rate is 91,43%, the average height is 22,5 cm, the average diameter is 2,90 mm, and 11 leaves are the most suitable for seedlings of this species in nursery.