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   <subfield code="a">Đánh giá khả năng phòng trị của xạ khuẩn đối với vi khuẩn Xanthomonas oryzae pv. oryzicola gây bệnh sọc trong trên lúa :</subfield>
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   <subfield code="a">Đề tài “Đánh giá khả năng phòng trị của xạ khuẩn đối với vi khuẩn Xanthomonas oryzae pv. oryzicola gây bệnh sọc trong trên lúa” được thực hiện nhằm: (1) Tuyển chọn các chủng xạ khuẩn có khả năng quản lý bệnh sọc trong trên lúa; (2) Khảo sát khả năng tiết một số enzyme của các chủng xạ khuẩn. Kết quả phân lập được 8 dòng vi khuẩn X. oryzae pv. oryzicola gây bệnh sọc trong trên lúa ở một số tỉnh thuộc Đồng bằng Sông Cửu Long. Đánh giá khả năng gây hại của 8 dòng vi khuẩn trên được thực hiện trong điều kiện nhà lưới. Kết quả cho thấy dòng Xoc_VT.HG (thu thập ở huyện Vị Thủy, tỉnh Hậu Giang) có khả năng gây hại cao nhất với tỷ lệ diện tích lá nhiễm bệnh là 53,8% ở thời điểm 12 ngày sau khi chủng bệnh và có sự khác biệt so với các chủng còn lại.</subfield>
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