Ảnh hưởng của tỷ lệ chừa lá và thời gian bao ngọn đến sinh trưởng và tỷ lệ xuất vườn của giống cà phê Robusta TR4 trong vườn ươm=A study on the impact of leaf proportion and top covering on growth and success percentage of TR4 robusta coffee cultivar in the nursery period

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Tác giả: Lê Thanh Liên Đặng, Thị Lan Thương Nguyễn

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Công thương, 2024

Mô tả vật lý: tr.448-454

Bộ sưu tập: Báo, Tạp chí

ID: 475723

Thêm vào giỏ

In this study, two experiments were conducted and arranged in a strip-plot design in a randomized complete block design (RCBD) with three replications. The vertically striped plot includes three treatments: 10, 15, and 20 days of apical sheathing. The horizontal striped plot includes 4 treatments, leaving 1/2, 1/4, 1/6, and 1/8 leaves grafted. These experiments were conducted in Dak Doa district, Gia Lai province. When these experiments were conducted in the dry season (from October to December 2023), the results showed that the grafted frees using grafted tops, leaving 1/8 of the leaves and covering the tops with up to 15 NSGs, had the highest survival rate (85.0%). Meanwhile, the grafted trees using grafted tops, leaving 1/8 of the leaves and covering the tops with up to 20 NSGs, have the highest export rate (75.0%). When these experiments were conducted in the rainy season (from June to August 2023), the results showed that using grafted tops, leaving 1/8 of the leaves and covering the tops up to 20 NSGs, had the highest survival rate (100%) and highest growth rate (87.50%).Nghiên cứu gồm hai thí nghiệm được bố trí theo kiểu lô sọc trong khối hoàn toàn ngẫu nhiên (RCBD) với 3 lần lặp lại. Lô sọc đứng gồm 3 nghiệm thức: thời gian bao ngọn 10, 15 và 20 ngày, lô sọc ngang gồm 4 nghiệm thức: chừa lá ngọn ghép 1/2,1/4,1/6 và 1/8 lá. Thí nghiệm được tiến hành tại huyện Đăk Đoa, tỉnh Gia Lai. Kết quả thí nghiệm thực hiện ở mùa khô (từ tháng 10 đến tháng 12 năm 2023) cho thấy cây ghép sử dụng ngọn ghép chừa 1/8 lá và được bao ngọn đến 15 NSG có tỷ lệ sống cao nhất (85,0%)
trong khi cây ghép sử dụng ngọn ghép chừa 1/8 lá và được bao ngọn đến 20 NSG có tỷ lệ xuất vườn cao nhất (75,0%). Kết quả thí nghiệm thực hiện ở mùa mưa (từ tháng 6 đến tháng 8 năm 2023) cho thấy sử dụng ngọn ghép chừa lá 1/8 lá và thời gian bao ngọn đến 20 NSG có tỷ lệ sống cao nhất (100%), tỷ lệ xuất vườn cao nhất (87,50%).

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