IJAER

International Journal of Agriculture and Environmental Research™

ISSN 2455-6939

Title:
DORMANCY BREAKING OF PORANG'S (Amorphophallus muelleri Blume) BULBIL BY PHOTOPERIOD TREATMENT

Authors:
Serafinah Indriyani, Wahyu Widoretno

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.

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