Research on seed physiological characteristics and seed propagation of Tarrietia javanica Blume

Abstract

Tarrietia javanica Blume is a valuable native tree species for timber , furniture,
and construction. This paper presents research results on seed physiological
characteristics and seed propagation of Tarrietia javanica to produce seedlings
for afforestation in the Central provinces. Research results showed that
Tarrietia javanica seeds collected in the North Central and South Central
regions had an average humidity of 13.38%. The average initial germinat ion
rate of Tarrietia javanica seeds was 81.25%. The seed germination period was
from 19 to 21 days. The seeds started to germinate after five days of sowing
and reached the highest rate on day 9. After 15 days, the number of seeds
germinated was negligible. The soil composition in the container consisted of
90% humus + 9% manure + 1% phosphorus had the best effect. Tarrietia
javanica seed treatment included soaking the seeds in 0.1% potassium
permanganate for 15 minutes, and taking sowing them in moist sand. Tarrietia
javanica needs 50% light shading from the stage of transplanting seedlings to
1-month-old, from 2 to 9 months old, it only needs 25% light shading.