Pertumbuhan Sawi Pakchoy (Brassica rapa L.) Pada Media Hidroponik Sistem Sumbu Setelah Pemberian Biostimulan Ekstrak Pegagan (Centella asiatica L.)

Abstract

Biostimulants are organic compounds that when applied to plants or growing media can increase plant production. Biostimulants work by increasing nutrient uptake, nutrient efficiency, and stimulating growth hormones. Plant extracts containing secondary metabolites have the potential to be a source of biostimulants. The purpose of this study was to determine the effect of biostimulant derived from gotu kola leaf extract (Centella asiatica L.) on the growth of mustard pakchoy (Brassica rapa L.) and to obtain the best concentration of gotu kola extract for the growth of mustard pakchoy. This study used a completely randomized design with 5 levels of treatment, namely P0 = control; P1= 40 mg/l; P2=60 mg/l; P3= 80 mg/l; and P4 = 100 mg/l. Data were analyzed using ANOVA and continued with Duncan's test with a confidence level of 5%. The results showed that the administration of biostimulant gotu kola extract had a significant effect on canopy wet weight (grams), shoot dry weight (grams) and plant height (cm), but had no significant effect on leaf number (strands), leaf length (cm), width leaf (cm), root wet weight (gram), root dry weight (gram) and mustard leaf chlorophyll content at 56 days after planting. The 80 mg/l treatment was the treatment that gave the best results on the growth of mustard pakchoy for the parameters of canopy wet weight (93 grams), canopy dry weight (6.2 grams), and plant height (29.66 cm)