Phục tráng giống lúa đặc sản Nàng Nhen thơm vùng Bảy Núi, tỉnh An Giang

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Tác giả: Việt Dũng Lê, Phước Đằng Nguyễn, Công Thành Võ

Ngôn ngữ: Vie

Ký hiệu phân loại:

Thông tin xuất bản: Khoa học (Cần Thơ) 2020

Mô tả vật lý: 79-88

Bộ sưu tập: Metadata

ID: 408405

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Tóm tắt
Chủ đề

Giống lúa Nàng Nhen, một giống đặc sản truyền thống của vùng Bảy núi Tỉnh An Giang đang thoái hóa, công tác phục tráng giống lúa Nàng Nhen được thực hiện nhằm duy trì các đặc tính tốt về chất lượng cũng như có năng suất của giống lúa này. Bằng phương pháp điện di SDS-PAGE và khảo sát hàm lượng 2-acetyl-1- pyrroline (2AP), ba dòng lúa Nàng Nhen được phục tráng có các đặc tính tốt về chất lượng cũng như có năng suất cao. Các dòng tuyển chọn có thời gian sinh trưởng ngắn và phẩm chất tốt, hàm lượng protein cao, amylose thấp, có tiềm năng năng suất cao, tính thơm của các dòng này được phân tích bằng phương pháp KOH 1,7% và hàm lượng 2AP của hạt gạo Nàng Nhen. Ba dòng NN12-2, dòng NN13-5 và dòng NN13-6 có thời gian sinh trưởng ngắn (112-119 ngày), hàm lượng protein cao (10,6%), amylose thấp (14,72%), hạt gạo trung bình (6,3 mm), có biểu hiện chống chịu sâu bệnh khá và có mùi thơm ổn định., Tóm tắt tiếng anh, Nang Nhen rice, a traditional specialty variety of the Bay Nui mountains area of An Giang Province, is being degenerated. The restoration of Nang Nhen rice is carried out in order to retain good quality characteristics as well as productivity of this variety. By applying the SDS-PAGE technique and 2-acetyl-1-pyrroline (2AP) content, the three Nang Nhen lines having good quality characteristics as well as yield have been restored. The selected lines have short duration and good eating qualities, high protein content
low amylose and high yield potential. The aromatic characteristic of these lines was analyzed by using KOH (1.7%) method and the 2-acetyl-1-pyrroline content was analyzed by gas chromatography-mass spectrometry (GC-MS). Three lines NN12-2, NN13-5 and NN13-6 have short growth duration (112-119 days), high protein content (10.6%), and low amylose (14.72%), medium grain rice (6.3 mm), with good tolerance to pest and disease and stable fragrance.

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