tailieunhanh - Nghiên cứu bước đầu về bệnh đốm lá ở cây trà hoa vàng gây bởi phomopsis tại Vườn quốc gia Tam Đảo

Bài viết Nghiên cứu bước đầu về bệnh đốm lá ở cây trà hoa vàng gây bởi phomopsis tại Vườn quốc gia Tam Đảo trình bày một số kết quả bước đầu về nấm phomopsis gây bệnh đốm lá trên cây trà hoa vàng Tam Đảo. | TNU Journal of Science and Technology 227 10 26 - 31 THE INITIAL STUDY ON LEAF SPOT DISEASE OF GOLDEN TEA CAUSED BY Phomopsis AT THE TAMDAO NATIONAL PARK La Viet Hong1 Duong Thi Thanh Thao2 Nguyen Van Thiep3 1Hanoi Pedagogical University 2 2Hanoi Metropolitan University 3Northern mountainous Agriculture and Forestry Science Institute ARTICLE INFO ABSTRACT Received 09 02 2022 The golden tea belongs to Camellia genus tree it contains many important compounds for the human health. However the growth and Revised 14 6 2022 development of golden tea were affected by diseases. In this study Published 14 6 2022 leaf spot disease was recorded in two species of yellow tea at the TamDao National Park. The results showed that the percentage of KEYWORDS diseased plants in two species of Camellia tamdaoensis Ninh et Hakoda and Camellia phanii Hakoda amp Ninh were and Leaf spot disease respectively. The typical symptom of the disease was the appearance Phomopsis of small brown or black spots they scattered on the leaves where the Golden tea leaves were dried necrotic . At severe disease spots mycelium was clearly observed. Pathogenic fungi were isolated on PDA medium TamDao mycelium was white and fast-growing. Spores were mound-shaped National Park with glossy bright black in color. The ITS sequence of the fungal pathogen causing leaf spot disease was amplified sequencing and characterized. Its length was 519 bp its GC content was . By analysis of identity value and the genetic relationship the pathogenic fungus on the leaf of two golden tea species was Phomopsis sp. TD2. NGHIÊN CỨU BƯỚC ĐẦU VỀ BỆNH ĐỐM LÁ Ở CÂY TRÀ HOA VÀNG GÂY BỞI Phomopsis TẠI VƯỜN QUỐC GIA TAM ĐẢO La Việt Hồng1 Dương Thị Thanh Thảo2 Nguyễn Văn Thiệp3 1Trường Đại học Sư phạm Hà Nội 2 2Trường Đại học Thủ Đô Hà Nội 3 Viện Khoa học kỹ thuật Nông lâm nghiệp miền núi phía Bắc THÔNG TIN BÀI BÁO TÓM TẮT Ngày nhận bài 09 02 2022 Cây trà hoa vàng thuộc chi Camellia chứa nhiều hợp chất quan .