Ảnh hưởng của kỹ thuật cắt dây tại thời điểm 50 ngày sau khi trồng đến đặc tính sinh trưởng, năng suất và chất lượng của ba giống khoai lang tím (ipomoea batatas (l.) lam.)

0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: Văn Hòa Lê, Thị Lan Anh Thư Nguyễn, Thị Phương Thảo Phạm

Ngôn ngữ: vie

Ký hiệu phân loại: 633 Field and plantation crops

Thông tin xuất bản: Khoa học (đh cần thơ), 2020

Mô tả vật lý: 182-190

Bộ sưu tập: Metadata

ID: 489034

Thêm vào giỏ Liên kết toàn văn

Tóm tắt
Chủ đề

The purpose of this work was to evaluate the effects of vine pruning at 50 days after planting on the growth, tuberous yield and tuberous quality of three purple sweet potato (PSP)(Ipomoea batatas (L.) Lam.) varieties. The experimental site was located at Thanh Trung commune, Binh Tan district, Vinh Long province. The experiment layout was randomized complete block design, in factorial arrangement. Factor A included three purple sweet potato varieties used in the experiment (HL491 from Vietnam, PSP Lord (Lord) and PSP Malaysia which were imported from Japan and Malaysia). Factor B related to the pruning technique included keeping the vine length or pruning the vine (remained 50-60 cm of vine length) at 50 days after planting. The experiment had four replications with 10 m2 for each relication. The results showed that maintaining the rest main vines about 50-60 cm after pruning at 50 days after planting could affect to the growth characteristics and increased the number of tuberous roots, total and commercial yields as well as some quality contents such as dry weight, starch and anthocyanins contents of three selected PSP varieties. The highest vine length and some yield components (number of roots, merchandise yields and total tubeous root yield) were recorded from PSP Malaysia., The number of branches, total leaves, the anthocyanins and flavonoids contents extracted from the tubers of HL491 variety were higher than those from other varieties.Thínghiệm được thực hiện nhằm nghiên cứu ảnh hưởng của kỹ thuật cắt dây tại thơi điểm 50 ngày sau trồng đến sự sinh trưởng, năng suất cũng như chất lượng của ba giống khoai lang tím (Ipomoea batatas (L.) Lam). Đề tài được bố trítại xã Thành Trung, huyện Bình Tân, tỉnh Vĩnh Long. Thínghiệm được bố tri theo thể thức khối hoàn toàn ngẫu nhiên, thừa số hai nhân tố. Nhân tố (A) bao gồm(:) ba giống khoai lang tím (HL491 (địa phương), Lord và Malaysia. Nhân tố (B) bao gồm(:) cắt dây và không cắt dây, có hai mức độ là không cắt dây và cắt dây. Thínghiệm có 4 lần lặp lai, mỗi lần lặp lai là 10 m2. Kết quả thínghiệm cho thấy, việc cắt dây khoai lang tím vào lúc 50 ngày sau trồng và giữ phần thân chính còn lạikhoảng 50-60 cm đã làm thay đổi một số chỉ tiêu sinh trưởng của dây khoai lang và giúp gia tăng số củ hình thành, tăng năng suất và một số chỉ tiêu phẩm chất củ như hàm lượng chất khô, tinh bột và anthocyanin trong thịt củ. Kết quả cho thấy, giống khoai lang tím Malaysia có chiều dài dây và các chỉ tiêu năng suất (tổng số củ, năng suất thương phẩm và năng suất tổng) cao hơn so với giống khoai lang tím HL491 và khoai lang tím Lord. Giống khoai lang tím HL491 có số nhánh, số lá, hàm anthocyanin và flavonoid cao hơn hai giống còn lại.

Tạo bộ sưu tập với mã QR