KẾT QUẢ TRỒNG THỬ NGHIỆM GIỐNG LÊ MỚI VH6 TẠI TỈNH BẮC KẠN

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Tác giả: Duy Trường Hà, Đình Hà Trần

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học và Công nghệ - Đại học Thái Nguyên, 2023

Mô tả vật lý: tr.400-406

Bộ sưu tập: Báo, Tạp chí

ID: 340146

Thêm vào giỏ Liên kết toàn văn

Bac Kan province has a favorable natural condition for the development of some temperate fruit trees such as pear in highland areas. However, pear production is still small scale and mainly used local pear variety, so the quality is limited. The project of trial planting pear variety “VH6” at typical locations of 3 highland districts: Ba Be, Ngan Son, Pac Nam, Bac Kan province, with altitudes of 540 - 740 m above sea level, was implemented from June 2017. Preliminary results show that VH6 pear variety was well adapted to local conditions. Although planting in the Summer (June 2027) in unfavorable weather, but after 3 and 4 years of planting, the trees had grown quite well, with few pests and diseases, and began to produce the first fruit season after the 3 year planting. After 4 years planted, fruits were harvested from the mid.- end of July at the rate of 32.4% fruiting trees, each tree bear: 22.3 fruits, fruit weight: 260.9 g/fruit, yield: 6.0 kg fruit/tree. Fruit performed good quality: Spherical slightly flattened shape, green color skin
High edible rate: 90.95%. The flesh of the fruit was white with little or no darkening after peeling and opening the fruit
The fruit was succulent, soft flesh, sweet and cool, without acrid taste. Dry matter ratio: 17.78%
Sweetness (brix degree): 12.00%
vitamin C content: 10.23 mg/100g tannin content: 0.17% and acidity with acid content 0.22%. This result shows that pear variety “VH6” is a high potential to develop and expand production in Bac Kan province.Tỉnh Bắc Kạn có điều kiện tự nhiên thuận lợi phát triển một số loại cây ăn quả ôn đới, trong đó có cây lê ở các khu vực vùng cao. Tuy nhiên, sản xuất lê của người dân còn manh mún và chủ yếu sử dụng giống lê địa phương nên chất lượng hạn chế. Dự án trồng thử nghiệm giống lê VH6 tại các điểm điển hình của 3 huyện vùng cao: Ba Bể, Ngân Sơn, Pắc Nặm tỉnh Bắc Kạn, có độ cao từ 540 – 740 m so với mực nước biển, được thực hiện từ tháng 6/2017. Kết quả ban đầu cho thấy giống lê VH6 thích ứng phù hợp với điều kiện địa phương. Mặc dù trồng trong mùa Hè (tháng 6/2017) có thời tiết không thuận lợi, nhưng sau 3 và 4 năm trồng cây sinh trưởng khá tốt, sâu bệnh hại ít và bắt đầu cho quả bói sau năm thứ 3. Sau 4 năm trồng, cây cho sản phẩm quả thu hoạch giữa – cuối tháng 7 với tỷ lệ số cây là 32,4%, mỗi cây cho 22,3 quả, khối lượng quả là 260,9 g/quả, năng suất đạt 6,0 kg quả/cây. Quả có chất lượng khá tốt: Quả hình cầu hơi dẹt, màu xanh
tỷ lệ ăn được cao (90,95%). Thịt quả màu trắng ít hoặc không bị chuyển màu thâm nâu sau khi gọt vỏ và bổ quả
Thịt quả mọng nước, ăn mềm, ngọt thanh mát, không có vị chát. Tỷ lệ chất khô đạt 17,78%
Độ ngọt (độ brix) đạt 12,00%
hàm lượng vitamin C là 10,23 mg/100g, hàm lượng tanin là 0,17% và độ chua với hàm lượng axit là 0,22%. Kết quả này cho thấy giống lê VH6 có tiềm năng phát triển mở rộng sản xuất trên địa bàn tỉnh Bắc Kạn.

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