Nghiên cứụ ảnh hưởng của chất điều hòa sinh trưởng GA3 đến tỷ lệ đậu quả, năng suất và chất lượng quả giống bưởi Da Xanh tại Thái Nguyên

0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: Trí Thức Bùi, Thúc Đạt Chu, Văn Hiền Lã, Xuân Bình Ngô, Thị Thu Hà Nguyễn, Thị Tình Nguyễn, Tiến Dũng Nguyễn, Văn Duy Nguyễn, Văn Liễu Nguyễn, Hoàng Huyên Tống

Ngôn ngữ: vie

Ký hiệu phân loại: 634.3 Citrus and moraceous fruits

Thông tin xuất bản: Nông nghiệp & Phát triển nông thôn, 2021

Mô tả vật lý: 131 - 136

Bộ sưu tập: Metadata

ID: 494530

Thêm vào giỏ

Tóm tắt
Chủ đề

Kết quả nghiên cứu trên cây bưởi giống Da Xanh 6-7 năm tuổi trong các năm 2017-2018 tại Thái Nguyên cho thấy: phun 3 lần chất điều hòa sinh trưởng GA3 vào các thòi kỳ: trước khi hoa nở 10 ngày (lần 1), khi hoa nở rộ (lần 2) và sau khi hoa nở 10 ngày (lần 3) cho tỷ lệ đậu quả cao nhất, tăng tù' 0,12 đến 7,35% so với đối chứng phun nước lã. Trong đó, xử lý ở nồng độ 50 ppm đem lại hiệu quả cao nhất (tỷ lệ đậu quả tăng từ 1,38% đến 10,45%, năng suất quả đạt 58,74 - 85,40 kg quả/cây), sai khác có ý nghĩa thống kè ở mức tin cậy 95%. Phim GA, Ờ các nồng độ từ 50 đến 70 ppm kết họp vói khoanh vỏ vào ngày 15/12 của năm trước có tác dụng làm tăng tỷ lệ đậu 2,17 - 10,42% và tăng năng suất quả từ 57,60 - 97,16 kg quả/cây so vói công thức đối chứng phun nước lã. Phun GA3 không làm thay đổi chất lượng bưởi Da Xanh thể hiện qua một số chỉ tiêu cơ bản như hàm lượng đường tổng số, axit, độ brix và vitamin c...Results conducted from the study on the effect of GA3 sprayed with different concentrations and times of application to fruit yield and quality of 6-7 year old Da Xanh trees grown in Thai Nguyen province in 2017 - 2018 period showed that 3 sprays of GA3 growth regulator at 10 days before blooming (the first), fully bloom (the second) and 10 days after flowering (the thứd) gave highest fruiting rate, increased from 0.12 to 7.35% compared to the water spray control, in which, the best impact was received when GA3 treated at a concentration of 50 ppm (fruiting rate increased by 1.38% to 10.45%, with the yield of from 58.74 kg to 85.40 kg fruit / tree) that was significantly different at the 95% confidence level. Spraying GA3 at concentrations from 50 ppm to 70 ppm combined with girdling on 15/12 of the previous year had the effect of increasing fruiting rate from 2.17 to 10.42% and increasing fruit yield (from 57.60 kg - 97.16 kg/tree) compared to the control (water spray) And, what is more, GA3 spray gave no impact to the quality of fruit indicated by the little changeable values of total sugar content, acidity, brix level, vitamin C...etc.

Tạo bộ sưu tập với mã QR