Kết quả nghiên cứu chọn tạo và khảo nghiệm giống bí đỏ lai Mật sao

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Tác giả: Thị Thanh Thúy Đoàn, Xuân Cảnh Đoàn, Thị Trang Nguyễn, Thị Yến Nguyễn

Ngôn ngữ: Vie

Ký hiệu phân loại:

Thông tin xuất bản: Nông nghiệp & Phát triển nông thôn 2022

Mô tả vật lý: 15 - 24

Bộ sưu tập: Metadata

ID: 409515

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Giống bí đỏ Mật sao 2 là giống lai (F1) của Viện Cây lương thực và Cây thực phẩm tạo ra từ tổ hợp lai giống bí đỏ Hà Châu (♀) x Số 1(♂) năm 2018. Giống có khả năng sinh trưởng tốt ở cả 2 vụ trồng (xuân hè và thu đông), ra hoa và đậu quả sớm, thời gian thu quả sau trồng là 70 -75 ngày (vụ xuân hè) và 65 -70 ngày (vụ thu đông) và thời gian sinh trưởng 90 -100 ngày (vụ xuân hè), 85 -90 ngày (vụ thu đông). Giống Mật sao 2 có dạng cây khỏe, lá xanh, dạng lá xẻ thùy trung bình, chiều dài thân chính 314,6 cm, phân nhánh trung bình, dạng quả lê tròn dài, chiều dài quả 43,5 cm, đường kính quả 12,6 cm, vỏ quả có chấm hình sao, khi chín màu nâu, thịt quả chắc, mịn, màu vàng đậm, hàm lượng chất khô đạt 8,33%, độ Brix 8,9%. Giống bí đỏ Mật sao 2 cho số quả/cây đạt 1,27 - 1,31 quả (xuân hè) và 1,28 quả (thu đông), thuộc dạng quả to, khối lượng quả 3,25 - 3,31 kg (vụ xuân hè) và 2,89 kg (vụ thu đông). Năng suất thực thu đạt 35,41 - 37,68 tấn/ha (xuân hè) và 32,96 tấn/ha (thu đông), cho ưu thế lai chuẩn với giống Lucky từ + 12,99% đến + 16,66% (xuân hè) và 10,16% (thu đông), từ + 22,66% đến + 24,65% với giống Vino 989. Giống bí đỏ lai Mật sao 2 được khảo nghiệm và mở rộng trong sản xuất tại các tỉnh Hà Nam, Nam Định và Bắc Giang năm 2021 - 2022. Tại các điểm khảo nghiệm, giống cho năng suất trung bình 35,23 tấn/ha (vụ xuân hè) và 32,32 tấn/ha (vụ thu đông), vượt năng suất mô hình giống đối chứng 7,77 - 12,13%., Tóm tắt tiếng anh, The Mat sao 2 pumpkin variety is a hybrid (F1) which was selected by the Field Crops Research Institute from the rether to used as a cross between Ha Chau pumkin (♀) x No.1 pumkin(♂) in 2018. The variety has good growth ability in both seasons (spring-summer and autumn-winter), early flowering and fruiting. The first harvest time after planting is 70-75 days (spring-summer crop) and 65-70 days (autumn-winter crop). The growing time is 90-100 days (spring-summer crop) and 85-90 days (autumn-winter crop). Mat sao 2 has strong stem form, green leaves and medium lobed leaves, main stem length is 314.6 cm, medium branching, long round pear shape. The fruit length is 43.5 cm, the fruit diameter is 12.6 cm, pods with star-shaped dots, and it has brown colour when rip
firm, smooth, dark yellow flesh. The dry matter content of fruit is 8.33%, Brix level is 8.9%. Mat sao 2 gives 1.27-1.31 fruit/plant (spring-summer) and 1.28 fruit/plant (autumn-winter), in the form of large fruit, the fruit weight is 3.25-3.31 kg (spring-summer crop) and 2.89 kg (autumn-winter crop). The yield is 35.41-37.68 tons/ha (spring-summer) and 32.96 tons/ha (autumn-winter crop), giving the standard heterosis advantage with Lucky variety from +12.99% to +16, 66% (spring-summer) and 10.16% (autumn-winter) and standard heterosis with Vino 989 was from +22.66% to +24.65%. The Mat sao 2 is tested and expanded in production in Ha Nam, Nam Dinh and Bac Giang provinces, in 2021-2022. At the trial sites, the variety gave an average yield of 35.23 tons/ha (spring-summer crop) and 32.32 tons/ha (autumn-winter crop), exceeding the yield of the control variety by 7.77-12.13%.

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