Indeed in Pop-A, where grain yield had only a minimum cross-validated R of 3% only, TKW resulted in 64%.
This was further supported by that there were tight linear relationships between grain yield with mean maximum and minimum temperatures and accumulative solar radiation during grain filling period.
Grain yield was negatively related to mean maximum and minimum temperatures from HD to MA but not to those from SO to HD (Fig. 3a d).
The grain yield of rice is reported to drop by 10% for every 1°C increase in growing period minimum temperature in the dry season [ 22].
However, a QTL on SBI-03 for grain yield, the positive allele for increased grain yield was contributed by low yielding parent B35.
Grain yield under control treatments, for the cold year, decreased by 37% because the number of days of minimum temperature below 0 °C increased by 14 days.
Grain yield obtained without N fertilizer.
Mean mean grain diameter, min minimum grain diameter, max maximum grain diameter, sd standard deviation.
Population grain yield exhibited the same trend.
