TƯƠNG QUAN SINH TRƯỞNG, PHÁT TRIỂN CỦA SÂM NGỌC LINH VỚI MỘT SỐ NHÂN TỐ SINH THÁI Ở KHU BẢO TỒN THIÊN NHIÊN HÒN BÀ, TỈNH KHÁNH HÒA

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Tác giả: Ngô Công Châu, Phạm Mạnh Hùng, Ngại Phan Đức, Lưu Văn Nông, Thy Đỗ Anh

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học - Đại học Thủ Dầu Một, 2022

Mô tả vật lý: tr.36-47

Bộ sưu tập: Metadata

ID: 334162

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Correlation of growth and development of Ngoc Linh Ginseng with ecological factors of Hon Ba Nature Conservation area, Khanh Hoa was determined by multivariate Canonical Correspondence Analysis – CCA. Research results show that, 9/12 Growth and development indicators include: Plants regrow after hibernation, germination rate, leaf morphology, rearing set, plant height, canopy diameter, length of root, The rate of flowering trees, The rate of trees forming fruit of 2-year-old Ngoc Linh ginseng has a close relationship with 7 ecological factors such as: canopy cover, forest type, cover, middle layer, degree Thickness of leaf cover, grade composition, easy potassium standard of Hon Ba Nature Conservation area with tree confidence over 95%. In which, the indicator of tree height and flowering rate are very closely correlated with ecological factors, canopy, and tree cover with 100% confidence. 2/12 growth and development indicators including: survival rate and tuber weight have a close correlation with 4 ecological factors such as: total annual average rainfall, agaric stratum, and phosphorus easily digestible with a confidence level of over 95% and all have a very close correlation with the annual average total rainfall. Growth criteria Hibernation plants have a very close correlation with high ecological factors with a confidence level of over 95%. This research result provides scientific data for the replication of Ngoc Linh Ginseng growing model in Hon Ba Nature Conservation area and other areas with similar ecological conditions.Tương quan sinh trưởng, phát triển của Sâm Ngọc Linh với một số nhân tố sinh thái ở khu bảo tồn thiên nhiên Hòn Bà, Khánh Hòa được xác định bằng phép phân tích tương quan đa biến (Canonical Correspondence Analysis – CCA). Kết quả nghiên cứu cho thấy, 9/12 chỉ tiêu sinh trưởng và phát triển gồm: Cây mọc lại sau ngủ đông, tỷ lệ cây nảy mầm, hình thái lá, bộ rễ, chiều cao cây, đường kính tán, chiều dài củ, tỷ lệ cây ra hoa, tỷ lệ cây tạo quả của Sâm Ngọc Linh 2 tuổi di thực có mối tương quan gần với 7 yếu tố sinh thái như: Độ tàn che, kiểu rừng, độ che phủ, tầng trung mộc, độ dày lớp lá phủ, thành phần cấp hạt, kali dễ tiêu của khu bảo tồn thiên nhiên Hòn Bà với độ tin cậy trên 95%. Trong đó, chỉ tiêu chiều cao cây và tỷ lệ cây ra hoa có tương quan rất chặt chẽ với yếu tố sinh thái độ tàn che và độ che phủ với độ tin cậy 100%. 2/12 chỉ tiêu sinh trưởng và phát triển gồm: tỷ lệ cây sống và khối lượng củ có mối tương quan gần với 4 yếu tố sinh thái như: tổng lượng mưa trung bình năm, tầng sinh đại mộc, tầng sinh cỏ và lân dễ tiêu với độ tin cậy trên 95% và đều có tương quan rất chặt chẽ với yếu tố tổng lượng mưa trung bình năm. Chỉ tiêu sinh trưởng cây ngủ đông có tương quan rất chặt chẽ với yếu tố sinh thái độ cao với độ tin cậy trên 95%. Kết quả nghiên cứu này cung cấp dữ liệu khoa học cho việc nhân rộng mô hình trồng Sâm Ngọc Linh tại Khu bảo tồn thiên nhiên Hòn Bà và các khu vực có điều kiện sinh thái tương đồng khác.

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