2 KĨ THUẬT NHÂN GIỐNG THÔNG THƯỜNG TRÊN CÂY PHONG LAN – AGRICULTURE
KĨ THUẬT NHÂN GIỐNG TRÊN CÂY PHONG LAN
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2 KĨ THUẬT NHÂN GIỐNG THÔNG THƯỜNG TRÊN CÂY PHONG LAN

Posted On January 18, 2017 at 2:58 pm by / 1,580 Comments

KĨ THUẬT NHÂN GIỐNG TRÊN CÂY PHONG LAN


 1. Giao phấn ( thụ phấn )

Giao phấn trong tự nhiên là hiện tượng thông thường, gần như bắt buộc đối với hầu hết các loài lan. Đó là nguyên nhân vì sao họ lan có số lượng chủng loại rất phong phú. Đó cũng là phương thức tồn tại, phát triển và tiến hoá ưu thế hơn cả của họ thực vật này trong hướng thụ phấn nhờ côn trùng. Việc giao phấn đều tạo ra những giống mới, qua chọn lọc, có những đặc tính hơn hẳn cây bố mẹ.

 Mời các bạn xem đoạn clip nhân giống lan tự nhiên lan ngọc điểm tại vườn lan của chúng tôi.

https://www.youtube.com/watch?v=oLh-NPEJfTI

2. Phương pháp chiết tách cây con (keiki)
 
Phương pháp này dùng để tách các chậu lan quá đầy, đồng thời làm tăng số lượng cây mới.
Các giả hành già được tách ra khi hoa đã tàn và chỉ tách khi đã trồng được từ 2 – 3 năm.
 
Giả hành già được ươm lại trên giá thể ẩm để tạo chồi con, các chồi con được nuôi cùng với giả hành cho đến lúc đã tạo ra rễ mới, đủ sức phát triển mới tách lần thứ hai. Từ một giả hành có thể cho mỗi đợt 1 – 2 cây con.
 
Phương pháp chiết tách đảm bảo được tính chất di truyền của cây bố mẹ nhưng lại cho một thế hệ cây con sinh trưởng không đồng đều nên khó cung cấp một số lượng cây con lớn để phục vụ cho nuôi trồng với quy mô lớn.
 
Bài viết sử dụng hình ảnh từ nhiều nguồn khác nhau trên mạng (tìm hình bằng google).

Tư vấn kĩ thuật: 0933.067.033

 
 

 

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