In-vivo experiment
This experiment was conducted to evaluate the effectiveness of Rosa Bitamina (RB) application towards rose
plant under plant house condition at Selandar Community College Nursery, Melaka with 12 hours light exposure.
Daily temperature during this study was in range from 31 - 33oC with 50 - 75% relative humidity (RH). Rose plant
with same maturity (8 weeks after bare root planting) were selected and used in this in vivo evaluation. All plant
sample were divided into three different treatments which are T1; control (soil only), T2; soil + commercial rose
fertilizer, T3; soil +RB and T4; soil +RB +charcoal. The treatment for T2, T3 and T4 were applied every 2 weeks
intervals. Samples were placed under plant house condition with 12 hours light exposure along observation.
Assessment was conducted on observation of physical assessment such as leaves condition, bud formation, shoot