Heat raises risk to rice in reproductive phase

The rice culture presents development compatible with the phenological phases in Rio Grande do Sul, according to the Conjuntural Informativo released this Thursday (5) by Emater/RS-Ascar. According to the entity, the predominance of sunny days and high solar radiation favored the evolution of the crops, while the minimum temperatures remained close to the range considered adequate for the crop. Conversely, the punctual record of maximum temperatures above 35 °C increased the risk of failures in the fertilization of spikelets in areas that are in the reproductive phase. Predominantly, crops are between the vegetative and reproductive stages, with a pattern of growth and health, in a context of lower pressure from fungal diseases. Emater/RS-Ascar informs that irrigation management has a central role in this period, given the increased water demand in the reproductive phase and the gradual reduction of reservoir levels in some localities. The entity also records moderation in ...