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Trịnh Ngọc Ái, Nguyễn Tiến Dũng, Nghị Khắc Nhu(1), Huỳnh Lâm Anh Kiệt, Nguyễn Tuyết Anh, Nguyễn Lý Ngọc Hân, Trần Thị Yến Như, Dương Tiểu Muội

Ảnh hưởng phân đạm lên quá trình sinh trưởng và phát triển của giống ớt Thanh Phong (Capsicum annum L.) gây đột biến bằng phương pháp chiếu xạ

Effect of nitrogen fertilizer on plant growth and development in mutant Thanh Phong (Capsicum annum L.) by gamma irradiation

Khoa học và Công nghệ Lâm nghiệp

2024

2

3-13

1859-3828

Đột biến, ớt Thanh Phong, Phân bón Nitrogen, Sinh trưởng và phát triển ở thực vật, Tia gamma.

Gamma irradation, mutation, Nitrogen fertilizer, Plant growth and development, Thanh Phong chili.

Nghiên cứu được thực hiện nhằm đánh giá ảnh hưởng của phân bón đạm lên khả năng sinh trưởng và phát triển của giống ớt Thanh phong đột biến bằng phương pháp chiếu xạ gamma. Thí nghiệm được thiết kế hoàn toàn ngẫu nhiên với 3 lần lặp lại. Hàm lượng phân bón đạm (0,1 g/L và 3 g/L) được sử dụng cho nghiên cứu này ở cả cây chiếu xạ và không chiếu xạ, các yếu tố sinh trưởng và năng suất ảnh hưởng đáng kể khi áp dụng lượng phân đạm. Những dòng chiếu xạ 50 Gray kết hợp với phân đạm có chiều cao cây cao nhất đạt 70,6 cm vào 112 ngày sau gieo (NSG) và các chỉ số hình thái cũng gia tăng khi tăng lượng phân đạm lên 3g/L. Nghiệm thức NT6 (N3, 50 Gray) cho số lá cao nhất (96,3 lá/cây), số nhánh (6,1 nhánh), số bông (18 bông/ cây), số trái (14 trái/cây), dài trái (6,1 cm) và trọng lượng trái (2,7 g/trái). Trong nghiên cứu này có thể kết luận rằng tiền xử lý hạt ớt với liều chiếu xạ 50 Gray và sử dụng lượng phân bón đạm 3 g/L có thể được xem như một sự hứa hẹn hữu ích trong việc gia tăng năng suất, đặc biệt là ở giống ớt Thanh Phong.

The present study was carried out to evaluate the effect of nitrogen fertilizer on the growth and yield of mutant Thanh Phong chili (Capsicum annum L.) by gamma radiation. The single factorial experiments were laid out in Randomized Complete Block Design (RCBD) with three replications. Three levels of nitrogen fertilizer (0.1 g/L, and 3 g/l N) were used in this experiment for control and mutant plants. Growth and yield contributing parameters are significantly influenced by different doses of nitrogenous fertilizers. Seeds were treated 50 Gray with a dose of Nitrogen gave the highest plant height (70.6 cm) for 112 days of germination and most of the morphological parameters increased with increasing nitrogen levels up to 3g/L. The treatment NT6 (N3, 50 Gray) gave the highest leaf number (96.3 leaves/plant), branch number (14 branches/plant), flower number (18 flowers/plant), fruit number (14 fruits/plant), fruit length (6.1 cm), and individual fruit weight (2.7 g). It can be concluded from the present study that pretreatment of chili seeds with a gamma radiation dose (50 Gray) before planting and using nitrogen fertilization with 3g/L may be considered promising and useful in increasing the efficiency of chili productivity, which is a very important crop in Thanh Phong chili.

TTKHCNQG, CVv 421

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