The Influence of Papaya Leaf Extract to Anthracnose Disease in Papaya Fruit
Sudiono . *
Department of Agrotechnology, Faculty of Agriculture, Lampung University, Postal Code 35144, Bandar Lampung, Indonesia.
Efri .
Department of Protection, Faculty of Agriculture, Lampung University, Postal Code 35144, Bandar Lampung, Indonesia.
Muhammad Asep Awaludin
Department of Agrotechnology, Faculty of Agriculture, Lampung University, Postal Code 35144, Bandar Lampung, Indonesia.
*Author to whom correspondence should be addressed.
Abstract
Aims: The objective of this research was to find out the influence of papaya leaf extract to the in-vitro growth of Colletotrichum gloeosporioides and in-vivo anthracnose disease occurrence at papaya fruit.
Methodology: This research used completely randomized design with seven treatments and four replications. Obtained data were analyzed by using analysis of variance and mean scores were compared and tested with least significance difference (LSD) at 5% and polynomial test at 5%.
Results: The research result showed the significant influence of papaya leaf extract and synthetic fungicide in inhibiting the growth of Colletotrichum gloeosporioides colony and the disease occurrence at papaya fruit. The polynomial test result of papaya leaf extract showed linier pattern of C. Gloeosporioides colony diameter and disease course progression.
Conclusion: The papaya leaf extract inhibited C. Gloeosporioides colony growth at 2 up to 7 days after inoculation, but it did not inhibit spore germination and its density. The papaya leaf extract also inhibit the disease occurrence at 5 and 6 days after application.
Keywords: Colletotrichum gloeosporioides, vegetative fungicide, disease occurrence, papaya.