Table 4.

Percentage of opened spikelets from 0700H to 1730H (Day 1), 1730H to 1830H (Day 1), 1830H to 0630H (Day 1 and Day 2) and 0630–1500H (Day 2) of IR64-SDPD in Experiment 3. Percentage in each time period was calculated as (Spikelets that opened at a time period) ÷ (The sum of all spikelets that opened on Day 1 and Day 2) × 100. No apparent cleistogamous spikelets were observed.

Opened spikelets (%)	0700–1730H (Day 1)	1730–1830H (Day 1)	1830–0630H (Day 1 and Day 2)	0630–1500H (Day 2)
16 and 17 September 2019	0	0	6.4	93.6
31 August–1 September 2020	1.3	0	0	98.7
1 and 2 September 2020	0.9	0.9	6.2	92.0
Average	0.7	0.3	4.2	94.8