Pitanga (Eugenia uniflora L.) cultivation has increased rapidly around the world, but most seedlings come from sexual propagation and thus present high genetic variability and respond differently to environmental conditions. This work studied the phenology and thermal requirement of pitanga genotypes in the Brazilian semiarid. Forty‐eight genotypes were evaluated in 2017 and 2018 in an experimental farm at the Federal Rural University of Semiarid, Mossoró, Brazil. The time and thermal requirement for phenological stages from fruit pruning to harvesting, and fruit production were evaluated. Highly productive and precocious genotypes were identified, and six groups were arranged based on dissimilarity.

中文翻译：

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在半干旱条件下选择pitanga基因型的物候特性，热量需求和生产

琵琶a（Eugenia uniflora L.）的种植在世界范围内增长迅速，但是大多数幼苗来自有性繁殖，因此具有很高的遗传变异性，并且对环境条件的反应也不同。这项工作研究了巴西半干旱地区皮坦加基因型的物候和热需求。在2017年和2018年，在巴西莫索罗的塞米里德联邦农村大学的一个实验农场评估了48种基因型。评估了从修剪到收获到果实生产的物候期所需的时间和热量。确定了高产和早熟的基因型，并根据不相似性排列了六组。