Full
Outline
To systematically investigate the synergistic influence mechanism of different storage temperatures and pre-harvest fertilization treatments on the post-harvest quality of Pyrus sinkiangensis Yu, determine the most ideal preservation strategy.
The study utilized a 3 (fertilization)×3 (temperature)×3 (biological replicates) experimental setup. Pears subjected to different pre-harvest fertilization treatments [melilotus officinalis green manure (CM), sunflower green manure (DK) and no fertilizer (CK)] were stored at different temperatures (4,12 and 20 °C). Over a 55 d storage period, a texture analyzer was used to periodically determine 8 texture parameters:Weight loss rate, hardness, fracturability, cohesiveness, springiness, chewiness, gumminess, resilience and adhesiveness.
Storage temperature played a crucial role: The 4 ℃ treatment considerably restricted the final fruit weight loss to within the range of 0.13%–0.31%, performing better than the 12 ℃ (0.14%–0.41%) and 20 ℃ (0.28%–0.74%) treatments, and also maintained texture more effectively. For instance, by the 50th day of storage, the fruit hardness at 4 ℃ stayed at a relatively higher level, while the CK+20 ℃ group dropped to 8.86 kN.Under the same 4 ℃ condition, the fertilization treatment had a notable effect, with the melilotus officinalis green manure (CM+4 ℃) exhibiting the overall best performance: Its elasticity value was still 0.60 on 30 d, which was notably higher than CK+4 ℃ (0.32) and DK+4 ℃ (0.28), and cohesion and other parameters mostly remained stable at various time points.
The combined application of “4 °C low-temperature storage” and “pre-harvest melilotus officinalis green manure management” effectively maintains the postharvest weight and edible quality of Pyrus sinkiangensis Yu through an internal-external synergistic mechanism. This strategy provides clear practical guidance for preserving the postharvest quality of Pyrus sinkiangensis Yu.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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