Abstract:
The objective of the research was to obtain the method of porang's bulbil dormancy breaking.
The source of porang's bulbils were gained from Dusun Krajan Desa Rejosari Kecamatan Bantur
Kabupaten Malang. The diameter and weight of porang's bulbils were 2-3 cm and 3-5 g
respectively. The research design was Completely Randomized Design. Porang's bulbils were
storaged in the photoperiod cabinet during one month. The levels of photoperiod were 0, 8, 12,
16, 20, and 24 hours/day. The light intensity of TL lamp was 400 lux. As a control it was used
porang's bulbils that it was placed in the dark cabinet without light. The treatments were
conducted during one month. Repetition was four times. The success of dormancy breaking was
observed through the bulbil capasity to grow that it was identified by bud emerged. Data were
analyzed by ANOVA and were continued by Duncan test (a = 0.05). The results showed that
photoperiod 8, 12, 16, 20, and 24 hours/day during one month could stimulate porang bulbil
dormancy breaking. Photoperiod 24 hours/day emerged buds of porang 8.83 +_ 3.07. Photoperiod
20 hours/day emerged the height of buds 3.42 +_ 1.57 mm and the diameter of buds 3.75 +_ 1.35
mm. Photoperiod treatment promote breaking of porang's bulbil dormancy. |
