Nghiên cứu tuyển chọn và xây dựng vườn cây đầu dòng cấp 1 các dòng keo lai BV10, BV16, BV33

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Tác giả: Thị Thu Hiền Nguyễn, Thị Mai Trang Phạm

Ngôn ngữ: vie

Ký hiệu phân loại: 631.52 Production of propagational organisms and new varieties

Thông tin xuất bản: Khoa học (Đại học Tân Trào), 2022

Mô tả vật lý: 78 - 82

Bộ sưu tập: Metadata

ID: 500257

Thêm vào giỏ

Nhân giống bằng phương pháp nuôi cấy mô đối với cây lâm nghiệp được áp dụng tại Việt Nam từ những năm 1970. Đây là công cụ tối ưu để nâng cao năng suất chất lượng rừng . Với đặc thù Lâm nghiệp là một ngành sản xuất kinh doanh có chu kỳ dài, nên chất lượng giống cây trồng có ảnh hưởng lớn đến hiệu quả sản xuất kinh doanh rừng do vậy, việc sử dụng giống cây sản xuất bằng phương pháp nuôi cấy mô là thực sự cần thiết. Để có nguồn vật liệu ban đầu phục vụ cho sản xuất cây giống bằng phương pháp nuôi cấy mô, việc đầu tiên phải có được vườn cây đầu dòng chất lượng đúng quy định. Nghiên cứu xây dựng vườn đầu dòng đối với dòng keo BV10, BV16, Bv33 cho thấy: Tổng thời gian xây dựng vườn cây đầu dòng từ giai đoạn Invtro đến khi được công nhận vườn đủ tiêu chuẩn làm cây đầu dòng là 275 ngày trong đó giai đoạn Invitro dòng BV10, BV33 là 21 ngày, dòng BV16 là 24 ngày. Giai đoạn Invitro dòng BV33 có sức sinh trưởng kém hơn dòng BV10 và BV33, đến giai đoạn vườn ươm và giai đoạn trồng rừng dòng BV16 lại có sức sinh trưởng mạnh hơn 2 dòng BV10, BV33.Propagation by tissue culture method for forest trees has been applied in Vietnam since the 1970s.Thisisthe optimal tool to improve forest productivity and quality. Forestry is a production and business industry with a long cycle, the quality of plant varieties has a great influence on the efficiency of forest production and business. Therefore, the use of plant varieties produced by the tissue culture method is really necessary. In order to have a source of starting materials for the production of seedlings by tissue culture method, the first thing to have is a top-quality garden of elite trees with regulations. Research on building a garden of elite trees for hybrid acacia BV10, BV16, and BV33 shows that: The total time to build a garden of elite trees from the Invtro stage until the garden is recognized as qualified as a garden of elite trees is 275 days, of which Invitro phase BV10, BV33 is 21 days, BV16 is 24 days. In the Invitro stage, the BV33 has a lower growth rate than the BV10 and BV33, and in the nursery and afforestation stage, the BV16 has stronger growth than the BV10 and BV33.

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