Đánh giá khả năng nhiễm nấm bệnh và tuyến trùng của một số giống hồ tiêu trong điều kiện nhà lưới

0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: Đăng Duyên Ngô, Thị Phượng Trần, Thị Nguyệt Quế Trang

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học Tây Nguyên, 2023

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ID: 346767

Thêm vào giỏ Liên kết toàn văn

Nghiên cứu được tiến hành trên năm giống hồ tiêu bao gồm giống hồ tiêu Vĩnh Linh, giống hồ tiêu Ấn Độ, giống hồ tiêu Trâu, giống hồ tiêu Lộc Ninh và giống hồ tiêu Sẻ với mục tiêu là khảo nghiệm, đánh giá giống hồ tiêu có khả năng chống chịu nấm bệnh và tuyến trùng trong điều kiện nhà lưới, trồng trên đất nhiễm bệnh và bổ sung nguồn bệnh. Thử nghiệm trong nhà lưới cho thấy so với giống hồ tiêu Sẻ, mật độ nấm bệnh trong đất trồng hồ tiêu Vĩnh Linh giảm 65,7%, mật độ tuyến trùng đất giảm 53%, tuyến trùng trong rễ giảm 37,5%
mật độ nấm bệnh trong đất trồng tiêu Trâu giảm 55%, mật độ tuyến trùng đất giảm 43%, tuyến trùng trong rễ giảm 33%. Kết quả đánh giá tốc độ tăng trưởng của các giống hồ tiêu cũng cho thấy giống hồ tiêu Vĩnh Linh và giống hồ tiêu Trâu tăng trưởng nhanh gấp 2,34 lần và 2,46 lần so với giống hồ tiêu Sẻ. Kết quả nghiên cứu cho thấy giống hồ tiêu Vĩnh Linh và giống hồ tiêu Trâu là hai giống hồ tiêu đạt tiêu chí đã đề ra (tỷ lệ bệnh dưới 30%, tỷ lệ chết dưới 10%, mật độ nấm bệnh và tuyến trùng giảm trên 50%), hai giống hồ tiêu này có khả năng chống chịu nấm bệnh và tuyến trùng tốt hơn so với các giống hồ tiêu còn lại, tốc độ tăng trưởng tốt. Từ kết quả này, giống hồ tiêu Vĩnh Linh và giống hồ tiêu Trâu được lựa chọn đề xuất đưa ra trồng thử nghiệm trên quy mô đồng ruộng.The study was conducted on five black pepper varieties including Vinh Linh, Indian, Trau, Loc Ninh and Se black pepper variety with the aim of testing and evaluating the variety. Black pepper is resistant to fungal diseases and nematodes under net house conditions, grown on infected soil and supplemented with disease sources. Experiments under net house conditions showed that compared with the Se black pepper variety, the density of fungal diseases in Vinh Linh black pepper’s soil decreased by 65.7%, the density of soil nematodes decreased by 53%, the density of nematodes in the roots decreased by 37.5%
The density of fungal diseases in the soil of buffalo black pepper cultivation decreased by 55%, the density of soil nematodes decreased by 43%, the nematode in the roots decreased by 33%. The results of assessing the growth rate of pepper varieties also showed that Vinh Linh and Trau pepper varieties grew 2.34 times and 2.46 times faster than Se pepper varieties. Research results show that Vinh Linh and Trau are the two pepper varieties that meet the set criteria (disease rate below 30%, mortality rate less than 10%, density of fungi and nematodes reduced by over 50%), these two varieties have better resistance to fungal diseases and nematodes than other pepper varieties, good growth rate. From this result, Vinh Linh pepper variety and Trau pepper variety were selected and proposed to be tested on field scale.

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