Pengaruh Aplikasi Formula Pantoea agglomerans Terhadap Aktivitas Antioksidan dan Kandungan Klorofil Daun Tanaman Strowberi

Abstract

The objectives of this experiment were conducted to evaluate the effectiveness of Pantoea
agglomerans formulations to increase antioxidant activities and chlorophyll content of strawberry plants.
P. agglomerans was formulated in the forms of gel and powder. Measurement of peroxidase activity
carried out 7 days after application of P. agglomerans formulations on strawberry plants. The manner
in which the Cohen prosedure suggested by Simon and Rose (1970) and has been modified. Total
chlorophyll content (SPAD unit) was determined with a chlorophyll-meter SPAD-502. Some growth
parameters were observed such as plant height, number of leaves, and leaf area. Results of this study
showed that application of P. agglomerans formulations could increase the peroxidase activity. Peroxidase
activity on treated plants increased by 47.17% to 50.16% in comparison with un-treated plants. Total
chlorophyll content on treated plants increased by 23.81% to 28.22% in comparison with un-treated
plants. These results suggested that application of P. agglomerans formulations could increase the total
chlorophyll content and antioxidant activity of strawberry plants.