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   <subfield code="a">Nội dung đề tài nghiên cứu chọn lọc các dòng vi khuẩn vùng rễ có khả năng kiểm soát bệnh cháy bìa lá lúa và bước đầu tìm hiểu cơ chế đối kháng với vi khuẩn Xanthomonas oryzae pv. oryzae của các dòng vi khuẩn vùng rễ triển vọng. Nguồn vi khuẩn thử đối kháng được phân lập từ rễ của những cây lúa khỏe trong ruộng lúa có bệnh cháy bìa lá thuộc huyện Long Mỹ, tỉnh Hậu Giang bằng phương pháp pha loãng huyền phù vi khuẩn.</subfield>
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