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Effects of blooming and fruit thinning on the yield, fruit quality, and leaf photosynthesis of peach cultivar 'Xiahui 5' in China

文献类型： 外文期刊

作者： Zhang, Binbin 1 ; Chen, Hong 1 ; Zhang, Yuanyuan 1 ; Guo, Shaolei 1 ; Wang, Xiaojun 1 ; Sun, Meng 1 ; Yu, Mingliang 1 ; Ma, Ruijuan 1 ;

作者机构： 1.Jiangsu Acad Agr Sci, Inst Pomol, Jiangsu Key Lab Hort Crop Genet Improvement, Nanjing, Peoples R China

2.Nanjing Agr Univ, Coll Hort, Nanjing, Peoples R China

关键词： Blossom and fruit thinning; fruit quality; fruit set; peach; photosynthesis; yield

期刊名称：FOOD QUALITY AND SAFETY （ 影响因子：5.6； 五年影响因子：6.2 ）

ISSN： 2399-1399

年卷期： 2024 年 8 卷

页码：

收录情况： SCI

摘要： Objectives This study investigated the effects of different thinning treatments on yield, fruit quality, and leaf photosynthesis of 'Xiahui 5' peach (Prunus persica (L.) Batsch).Materials and Methods The suitable thinning period and loading capacity of 'Xiahui 5' peach were explored in production and a theoretical basis for efficient and high-yield cultivation of 'Xiahui 5' peach was provided, including blossom-thinning+fruit-thinning at 20 d after full bloom (DAFB)+fruit thinning at 40 DAFB, blossom-thinning+fruit-thinning at 40 DAFB, fruit-thinning at 20 DAFB+fruit-thinning at 40 DAFB, and fruit-thinning at 40 DAFB, with neither blossom-thinning nor fruit-thinning as control. The yield, fruit quality, and leaf photosynthesis were detected. The thinning treatments were carried out between April and May 2012 in Nanjing City, Jiangsu Province, China. The intensity of thinning with spacing was approximately 20 cm between fruits.Results Thinning fruit twice (20 DAFB+40 DAFB) saved labour (260.4 h/ha) and improved the weight (186.45 g) of individual fruit, the yield (980.55 kg/ha), and the internal and external fruit quality (red saturation, the ratio between red and yellow saturation), as well as enhancing the water-use efficiency (8.19 mmol/mol) and apparent CO2-use efficiency (140.58 mmol/mol) values of leaves. The effect of thinning fruit twice was better than blossom thinning+fruit thinning, or fruit thinning only once.Conclusions Collectively, thinning blossoms and fruit is a blossom- and fruit-management method suitable for peach production areas in the middle and lower reaches of the Yangtze River in China. In addition, thinning fruit twice (20 DAFB+40 DAFB) during the young fruit period and before entering the core-hardening period is suitable for achieving a reasonable load of 'Xiahui 5' peach. Flower thinning was not the recommended strategy for 'Xiahui 5' peach in terms of a reasonable load.

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