Plant pruning is the selective removal of specific plant parts to enhance growth, shape, and health. In this work, the effects of pruning were evaluated regarding the physiological parameters, maturity, quality, and harvest indices and the nutritional quality features of twelve chayote Sechium edule (Jacq.) Sw (Cucurbitaceae) varieties. GC-FID approaches were utilized to determine CO2 assimilation rates. The results demonstrated that pruning upregulated the leaf temperature and conductance but decreased transpiration and CO2 assimilation rates within the evaluated period (06:30 a.m.–16:23 p.m.). It was noted that the implementation of pruning also impacted samples with enhanced photosynthetically active radiation activity, with a positive correlation with CO2 assimilation. The macro- and micronutrient content was higher in samples with an epidermis, especially for S. edule var. albus spinosum. Nevertheless, the analyzed samples presented low (5–10 mL CO2 kg−1 h−1), medium (10–15 mL CO2 kg−1 h−1), and high levels (15–20 mL CO2 kg−1 h−1) of respiratory intensity and weight loss (7–17%)—effects attributed to botanical differences between the studied chayote varieties. This work demonstrates, for the first time, the effects of pruning in chayote orchards and expands the knowledge regarding the implementation of effective approaches to produce plants with culinary, cultural, and medicinal implications. Further approaches are required to determine the effects of pruning on chayote after harvest.
Cadeña-Íñiguez et al. (Thu,) studied this question.
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