EVALUATING THE GROWTH AND DEVELOPMENT ABILITY OF RAMIE (BOEHMERIA NIVEA (L.) GAUDICH) FROM DIFFERENT INITIATING MATERIALS AT PRACTICE AREA OF HONG DUC UNIVERSITY

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Tác giả: Thị Minh Hồng Nguyễn, Thị Thu Hường Nguyễn

Ngôn ngữ: vie

Ký hiệu phân loại: 581.3 +Genetics and evolution

Thông tin xuất bản: Tạp chí Khoa học - Trường Đại học Hồng Đức, 2020

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ID: 492445

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In vitro culture with many advantages such as large numbers of seedlings, genetically homogeneous was one of proposed methods for Boehmeria nivea (L.) Gaudich propagating. In this study, three materials were tested including: stem cuttings, seeds, and in vitro seedlings. The results indicated that the highest survived percentage of Boehmeria nivea (L.) Gaudich at the nursery stage was 72% at the treatment of stem cutting seedlings on soil- sand (1:1) substrate. Also at this treatment, the ability of height growth was fastest. However, at the treatment of in vitro seedlings, the branching speed and number of leaves were the highest (4.4 branches/plant and 19.2 leaves/stem, respectively). These results open the hope that the yield of Boehmeria nivea (L.) Gaudich from in vitro seedlings could be much higher than these from stems or seeds.Với ưu điểm tạo ra các cây con với số lượng lớn, đồng nhất về di truyền hiện phương pháp nhân giống cây gai từ nuôi cấy in vitro là một trong những biện pháp được đề xuất để nhân giống câ gai xanh. Trong nghiên cứu này , chúng tôi thử nghiệm từ 3 nguồn vật liệu khởi đầu: hom, hạt và in vitro đã thu được kết quả như sau: Tỷ lệ cây gai xanh sống sót khi ra vườn ươm đạt cao nhất là 72 trên giá thể đất - cát (1:1) có nguồn gốc từ hom
khả năng tăng trưởng chiều cao nhanh nhất cũng từ nguồn mẫu là hom, tuy nhiên tốc độ phân nhánh (4,4 nhánh/câ ) và số lá (19,2 lá/thân) ở nguồn vật liệu khởi đầu từ in vitro là cao nhất. Điều này mở ra hy vọng năng suất cây gai trồng từ vật liệu khởi đầu in vitro sẽ cao hơn từ các nguồn vật liệu hom hay hạt trong sản xuất.

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