Abstract
Here, we describe differences in the establishment of the leaf limb area and morphology of peach tree attributed to different seasonal conditions at a high-altitude tropical climate. The cultivars ‘Tropic Beauty’, ‘BRS Kampai’ and ‘BRS Rubimel’ were cultivated in a production area located in Ervália – MG, Brazil. A series of experiments is being carried out in this area since 2016, and the data collection for the present report was carried out in the 2018 productive cycle, when the plants were 4 years old. Fully expanded leaves were collected from ‘brindilla’ type (with same flushes vegetative growth) branches according to the period of the year. Leaves were collected for two seasons in year, August (first flushes) and December (second flushes) 2018. Three hundred leaves from each cultivar at each season were collected randomly as representative of the canopy in its middle portion. They were separated into ten replicates and evaluated individually for length, width and leaf area. All cultivars exhibited cyclic and significant differences in length, width and leaf area attributed to the environmental conditions, where and when they were developed. Further investigation is needed regarding this differential leaf growth and its impact on the production of peach trees grown in tropical highland regions.
Published Version
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