PENGARUH TINGKAT KONSENTRASI PUPUK PELENGKAP CAIR DAN ZAT PENGATUR TUMBUH AUKSIN TERHADAP STEK BATANG ANGGREK Dendrobium sp. var. Thongchai Gold
Daftar Isi:
- Orchid Dendrobium is one type of ornamental plant that is much favored by the public because it has a variety of shapes, sizes, colors and patterns. The purpose of this study was to determine the effect of concentration level of liquid supplementary fertilizer and plant growth regulator auxin on stem cuttings of Dendrobium sp. var. Thongchai Gold. This research was carried out at Green House and BPTPHP Laboratory of the Banten provincial agriculture office, from October 2021-January 2022. Used a factorial Randomized Block Design consisting of two factors. The first factor was liquid complementary fertilizer (P) which consists of 5 levels: 0 ml/l, 1,25 ml/l, 2,25 ml/l, 3,25 ml/l and 4,25 ml/l. The second factor was growth regulator auxin (Z) which consists of 3 levels: 0 ml/l, 1 ml/l and 2 ml/l. There were 15 treatment combinations and repeated 3 times, so there were 45 experimental units. The results showed that the application of liquid supplementary fertilizer was good to use because it could significantly affect the parameters of the time of shoot emergence, shoot height at the age of 6 Weeks After Planting (WAP) and 12 WAP and the number of leaves at the age of 6 WAP and 12 WAP. Giving growth regulator auxin had no significant effect on all parameters, namely the time of shoot emergence, shoot height at the age of 6 WAP and 12 WAP, the number of leaves at the age of 6 WAP and 12 WAP, the number of shoots at the age of 6 WAP and 12 WAP, shoot diameter (keiki) at at the age of 6 WAP and 12 WAP, the number of roots at the age of 12 WAP and the stem diameter of the cuttings at the age of 1 WAP and 12 WAP. There is an interaction between the application of liquid complementary fertilizer and the application of growth regulator auxin to the time parameters of shoot emergence.