Bài báo khoa học

This study was conducted to evaluate the effects of factors on the growth and development of Jasminum subtriplinerve in nursery periods. The experiments were arranged according to the Split - Splot method, three repetitions. In experiment 1, the large plot had 6 concentrations of IAA and the small plot had 3 types of cuttings. experiment 2, the large plot had 3 types of substrates and the small plot had 4 levels of leaf cutting area. After 90 days, the seedling growth indicators of the best treatments of experiments 1 and 2: The survival rate: 83,33, 83,00%; The budding rate: 96,67, 96,67%; Number of buds: 3,00, 3,40 buds/cutting; Height: 12,93, 12,77 cm; Diameter: 0,86, 0,93 mm; Number of leaves/bud: 5,80, 5,93, rooting index: 122,62, 199,04 cm. The results of this study show that the breeding formula for of Jasminum subtriplinerve species that can be applied in the nursery stage is as follows: middle cuttings with 15 - 20 cm long, at least 3-4 burning eyes; leave 2 - 4 leaves, cut off 1/3 of the leaf area; growth stimulant is IAA concentration 1,000ppm; the substrate consists of 60% ancient alluvial soil + 10% sand + 22% manure + 5% microbial fertilizer + 3% NPK