Peru: The weight of the Piura grapes fell between 25% and 30% as a result of the high temperatures

(Agraria.pe) The Piura grape campaign ended at the end of 2023 with an irregular balance. Being the area most affected by the greater incidence of rain and the rise in temperatures, the stress situation in the plants brought about problems of lower berry weight and an impact on phytosanitary problems, according to the agronomist Roberto Bezerra, renowned advisor. of table grapes in northern Peru. “We started the campaign with a very tired plant that came from high temperatures, which brought with it constant nocturnal respiration, that is, a complete energy drain. In addition, it came from a period of low luminosity and that meant fewer photosynthates. The plant did not produce food, but it expended a lot of energy. We had a very complicated start,” he explains. Not only was 2023 a year of high temperatures, Piura had to endure an increase in precipitation. What consequences did it have on cultivation? The rains gave us more nitrogen than normal. The carbon nitrogen (CN) ratio was ...