Abstract:
This research was aimed to determine the optimization of ratoon tillers of IR 42 varieties through
height and time of inundation which aims to increase the growth and yield of ratoon rice. This
study used a completely randomized experimental design (CRD) which consisted of two factors.
The first factor is inundation height (T0: 0 cm from the ground, T1: 5 cm from the ground, T2:
10 cm from the ground, T3: 15 cm from the ground) and the second factor is the inundation time
(P1: Week 5 after pruning, P2: 6th week after pruning, P3: 7th week after pruning, P4: 8th week
after pruning).
The results of this study stated that the starting time of inundation affected the maximum tillers
and productive tillers. The taller the tillers the longer the inundation begins. The highest
productive tillers were in the 5th week of inundation. The best height of inundation for the yield
of IR.42 ratoon rice grain was 10 cm from the ground |
