Comparison of Fruit Quality and Yield of‘Rainbow’Guava Under Two Production Modes

【Objective】 The effects of three-time-per-year fruiting production model (TH-T FPM) and two-time-per-year fruiting production model (TW-T FPM) on fruit quality, commodity rate, yield and output value of‘Rainbow’guava were compared in order to provide references for the promotion and plantation of‘Rainbow’guava in south Fujian.【Method】The 3-year-old‘Rainbow’guava trees planted in Zhangzhou, Fujian Province were used as the experimental material. Under the two production modes, the differences in quality, commodity rate, yield and output value of‘Rainbow’guava fruits harvested in each crop during the two consecutive production years from 2016 to 2018 were compared. 【Result】 In terms of fruit quality, the fruits harvested in winter under the TH-T FPM were the best, followed by the fruits harvested in late autumn and early spring under the TW-T FPM. The quality of fruits harvested in autumn and spring under the TH-T FPM was poor. In terms of fruit commodity rate, the fruits harvested in other seasons were above 80% except that the fruits harvested in autumn under the TH-T FPM were low. The yield and output value of the TH-T FPM were 41.97 t/hm2, 41.92 t/hm2 and 269 000 yuan/hm2, 259 600 yuan/hm2, respectively, and yield and output value of the TW-T FPM were 41.55 t/hm2, 40.76 t/hm2 and 253 400 yuan/hm2, 244 700 yuan/hm2, respectively during the two consecutive production years. Although the yield and output value of the TH-T FPM were slightly higher than those of the TH-T FPM, the production cost of TH-T FPM were about 30 000 yuan/hm2 higher than that of the TW-T FPM. Therefore, after deducting the production cost, the actual income of the TW-T FPM was higher than that of the TH-T FPM.【Conclusion】 The two-timeper-year fruiting production model of‘Rainbow’guava is suitable for promotion in south Fujian .