Bài báo khoa học

This study aims to evaluate the agrobiological characteristics of Sedum sarmentosum varieties collected in some Northern provinces and determine the cutting season, age of cuttings, and the ability to propagate S. sarmentosum. The experiments were arranged in a fully randomized block, with 3 replications at the nursery in Ngu Chi Son commune, Sa Pa district, Lao Cai province. The results showed that the S. sarmentosum varieties all had leaves growing in 3 rings at the stem segments, leaf blades were lanceolate to oblong, and the leaf tips were slightly pointed; leaf color is usually light green or dark green. The body is cylindrical, smooth, light green to pink red, 1.0 to 3.0 mm in diameter. Actual yield ranges from 4.0 to 5.3 tons/ha. The most suitable cutting season is from July 5 to August 5. The cutting age of 45 days gives the highest rate of seedlings qualified for export and the survival rate of plants (over 92%).