Influence of the acidity and temperature of the spinning process of the "leaf" type cheese on the physical-chemical, sensory and microbiological properties

Abstract

Among the main problems of the cultivation of lemon (Citrus lemon L.) in the province of Manabi, Ecuador, are the presence of flower and fruit rot caused by Colletotrichum spp., As well as the lack of water. Thus, the aim of the research was to evaluate the effect of copper oxychloride and irrigation on agronomy and health of "sutil" lemon plants. Lemon plants of 30 months of age (approximately 2.5 m high), grafted in Cleopatra mandarin patterns, established in the canton of Santa Ana were used. The crop was managed according to their needs. Lemon plants were exposed to gravity irrigation, one normal and other continuous, and to sprays or not with copper oxychloride (Cu₂(OH)₃Cl, 600 g ha-1), which constituted the treatments (four). Although several microorganisms are identified in young and adult tissues, flowers and fruits, structures of Colletotrichum sp. were observed in all plant organs analyzed. None of the variables studied showed a significant interaction between the factors (irrigation and fungicide). The severity of anthracnose in shoots was correlates significantly with the survival of leaves, as well as with temperature and rainfall. The use of continuous irrigation increases number of fruits per tree, weight of fruits per tree and yield of fruits, while pulverizations with copper oxychloride increases number of flowers per branch and average weight of fruits per tree in lemon plants.