Growth performance of supa (Sindora supa Merr.) seedlings under various pre-treatments
SF Vallesteros1* and CC Diamante2

1 Faculty, College of Forestry, Environment and Resources Management, Nueva Vizcaya State University, Bayombong, Nueva Vizcaya, Philippines
2 Graduate Student, CFERM, NVSU, Bayombong , Nueva VIzcaya
sfvallesteros[at]gmail.com

Abstract

The study investigated the growth performance of Sindora supa Merr. seedlings under various pre-treatments as follows: T1- control, seed were soaked in distilled water, T2-Hot soaking (seed were soaked in hot water 100 degree C until water settled to 6 degree C in an aluminum container for 24 hrs), T3-Cold soaking (seed were soaked in cold tap water 10 degree C until water settled to 6 degree C in an aluminum container for 24 hrs), and T4-Mechanical scarification (seed coat mechanically scarified on one side of the seed using sandpaper and layout in a completely randomized design. The research took place in Nueva Vizcaya, seedbeds were sown with 50% garden soil + 50% sandy soil. After a month of seed germination, seedlings were transferred into a plastic bag to evaluate the growth performance. Different pre-treatments had a substantial (P > 0.05) impact on height, chlorophyll content, and % survival, but no significant changes were found in the number of leaves and diameter. The study found cold-soaking to be 76% more effective than hot-soaking (28%) and mechanical scarification (24%). Therefore, it is recommended that cold-soaking treatment improves the growth performance of Sindora supa Merr.

Keywords: Supa (Sindora supa Merr.), Seed germination, Pre-sowing treatments

Topic: Agroforestry and biodiversity