To explored the characteristics of field growth time, yield and quality related indexes of passion fruit under multi-tiered fruiting vine cultivation mode and single-tier fruiting vine cultivation mode, from 2020 to 2021, a field production trial of passion fruit was conducted. The main planting variety of the purple-fruited passion fruit Tainong No. 1 and the yellow-fruited passion fruit Balewei were selected as materials. The study observed and measured the flowering, fruiting, yield, and quality-related indicators of passion fruit under two cultivation modes. It also analyzed the correlation between fruit quality indicators and meteorological factors such as temperature and light during the fruit ripening period. The results showed that: 1) Compared with the multi-tiered fruiting vine cultivation mode, the date for passion fruit plants to start budding, flowering, and fruit setting was later in the single-tier fruiting vine cultivation mode. The time required for fruit development and maturation was shortened, the flower and fruit setting rates significantly increased, and the coefficients of variation of the budding period, flowering rate, fruit development and maturation time, and fruit setting rate were all relatively low. The time from planting to harvest for Tainong No. 1 and Balewei was shortened by 69-71 d and 51-58 d, respectively, compared to the multi-tiered fruiting vine cultivation mode. 2) In terms of the total actual yield and its components, the single-tier fruiting vine cultivation mode resulted in significantly lower individual plant yields compared to the multi-tiered fruiting vine cultivation mode. All of its yield came from the primary vine, whereas the individual plant yield in the multi-tiered fruiting vine cultivation mode was composed of yields from the main vine, primary vine, secondary vine, and tertiary vine, and the proportions of yields from each level of vine varied. Compared with the multi-tiered fruiting vine cultivation mode, the single-tier fruiting vine cultivation mode led to a significant reduction in the number of fruit per plant, but a significant increase in the average fruit weight and the proportion of medium to large-sized fruit. 3) When compared with the multi-tiered fruiting vine cultivation mode, the single-tier fruiting vine cultivation mode led to a significant decrease in the total acid content of the fruit, whereas the fruit skin weight, juice volume, edibility rate, total sugar, and sugar-acid ratio increased. Moreover, the coefficients of variation of the values of the 7 indicators of fruit quality were relatively low, and there was a significant correlation between meteorological factors such as temperature and light and fruit quality. In summary, the passion fruit under the single-tier fruiting vine cultivation mode shortened the field growth time and exhibited superior characteristics in terms of flowering, fruiting, yield, and quality-related indicators compared to the multi-tiered fruiting vine cultivation mode, with relatively stable coefficients of variation for the various indicators.
