Nghiên cứu được thực hiện nhằm đánh giá sự bạc màu đất liếp chuyên canh cây cam sành qua nhiều năm canh tác tại xã Tường Lộc, huyện Tam Bình, tỉnh Vĩnh Long. | Đánh giá sự bạc màu đất vườn trồng cam sành dựa trên hình thái, đặc tính lý, hóa đất tại huyện Tam Bình, tỉnh Vĩnh Long Tạp chí Khoa học Công nghệ Nông nghiệp Việt Nam - Số 10(95)/2018 of chitinase from Aspergillus carneus. Applied Biochemistry and Microbiology, 40: 445-447. Biochemistry and biotechnology, 37: 141-154. Ulhoa . and Peberdy ., 1991. Regulation of Shubakov . and Kucheryavykh ., 2004. chitinase synthesis in Trichoderma harzianum. Chitinolytic Activity of Filamentous Fungi. Applied Journal of General Microbiology, 137: 2163-2169. Effect of culture conditions on chitinase activity induced by and strains isolated from fungal infected Tessaratoma papillosa Nguyen Xuan Canh, Le Thi Duong, Pham Hong Hien, Trinh Thi Van Abstract Flamentous fungi have been studied, applied to produce a variety of enzymes including chitinase. This research focused on the identification of culture conditions for two fungal strains inducing active chitinase. Fourteen strains were isolated from fungal infected bugs (Tessaratoma papillosa). Among them four chitinase inducing strains were identified. Strains and with the morphological characteristics similarity to Aspergillus were selected for further studies. The chitinase activity from these strains was influenced by culture conditions including time, temperature, pH and concentration of the substrates. Both strains induced the high chitinase activity after two days of culture. Concentrations of added chitin to the culture medium for optimum induction were for and 1% for strain, respectively. The investigation of pH and temperature conditions showed that both strains had the strongest activity at initial pH of 7 and culture temperature of 300C. Keywords: Aspergillus sp., chitinase, Tessaratoma papillosa Ngày nhận bài: 10/7/2018 Người phản biện: PGS. TS. Nguyễn Hoàng Anh Ngày phản biện: 19/7/2018 Ngày duyệt đăng: 15/10/2018 .