Affiliation: | (1) Bureau of Postharvest Research and Extension (BPRE), Science City of MuÑoz, CLSU Compound 3120, Nueva Ecija, Philippines;(2) Graduate School of Agriculture, Faculty of Agriculture, Tokyo University of Agriculture, Atsugi, Japan;(3) Laboratory of Tropical Plant Protection, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo, 156-8502, Japan;(4) Laboratory of Microbial Ecology, Tokyo University of Agriculture, Atsugi, Japan |
Abstract: | Lasiodiplodia theobromae, Thielaviopsis paradoxa, Colletotrichum musae, C. gloeosporioides, Fusarium verticillioides, and F. oxysporum were screened in vitro for sensitivity to Na2CO3, NaHCO3, CaCl2, NaCl, and NaClO. The spore germination of all pathogens was completely inhibited by Na2CO3 4 g/l, NaClO 5 g/l, and NaHCO3, CaCl2, and NaCl 6 g/l each. Dipping the bananas for 10–15 min in these concentrations reduced the incidence of crown rot (compared with the untreated fruits) 17 days after harvest in fruits treated with NaClO by 67%, with NaHCO3 by 62%, with NaCl by 38%, and with CaCl2 by 33%. Na2CO3-treated fruits had the same incidence of crown rot as untreated fruits. |