| 摘要: |
| 【目的】运用模糊综合评判法建立砂梨果实品质评价模型，确定各品种的综合评价值，为苏南地区不同成熟期砂梨品种的组合栽培提供参考。【方法】以国内外综合表现优良的42个砂梨品种为试材，调查果实成熟期，测定单果质量、可溶性固形物含量、可溶性糖、维生素C、石细胞和可滴定酸含量等品质指标，并通过模糊综合评判法，计算各品质指标的权重，得到不同品种品质性状的综合评判值，以综合评判值对参试品种进行分级，结合成熟期确定最佳的砂梨品种组合。【结果】参试的42个砂梨品种中，早熟品种12个，中熟品种20个，晚熟品种10个；果实品质指标中,单果质量、外观综合评价值、内质综合评价值、可溶性固形物、可溶性糖、维生素 C、石细胞和可滴定酸含量的权重分别为0.145，0.178，0.164，0.134，0.09，0.100，0.083和0.108。根据不同品种品质性状的综合评判值可知，42个砂梨品种中，一、二、三、四等品的数量分别为8，11，13，10，其中一等品种中早熟品种4个（‘若光’、‘翠冠’、‘爱甘水’和‘幸水’），中熟品种3个（‘秋月’、‘彩玉’和‘丰水’），晚熟品种1个（‘王秋’）。【结论】苏南地区在今后的引种及建园时，推荐选择‘若光’、‘翠冠’、‘爱甘水’、‘幸水’、‘秋月’、‘彩玉’、‘丰水’、‘王秋’等优质砂梨品种，形成一套涵盖7月下旬到10月上旬成熟的砂梨品种组合。 |
| 关键词: 砂梨 果实品质 模糊综合评判法 品种 成熟期 |
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| 基金项目:江苏省自主创新资金项目（CX(15)1023；镇江市创新能力建设项目（SS2015026） |
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| Preliminary screening of Pyrus pyrifolia Nakai combination with different mature periods based on fuzzy synthetic evaluation of fruit quality |
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WAN Chunyan,MI Lin,GUO Da,et al
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| Abstract: |
| 【Objective】This study established a model for the selection of sand pear combination based on fuzzy synthetic evaluation of fruit quality of 42 cultivars to provide basis for combined cultivation of sand pears in south Jiangsu.【Method】A total of 42 excellent sand pears cultivars from home and aboard were selected and the fruit maturation period and 8 quality indices were determined.Based on the fuzzy synthetic evaluation,the weight coefficient (WC) of each index and the comprehensive evaluation value (CEV) of each cultivar were obtained.All the cultivars were then graded into 4 grades according to the CEV,and the best combination sand pears combined with maturity period.【Result】Among the 42 tested cultivars,the numbers of early-maturity,middle maturity and later maturity cultivars were 12,20 and 10,respectively.The WCs of fresh quality (FQ), surface comprehensive evaluation (SCE),internal comprehensive evaluation (ICE),total soluble solids (TSS),soluble sugar content (SSC),vitamin C (VC) ,stone cell content (SCC) and titratable acidity (TA) were 0.145,0.178,0.164,0.134,0.09,0.100,0.083 and 0.108,respectively.According to CEV,the numbers of testing cultivars in the first,second,third and fourth grades were 8,11,13 and 10,respectively.The first grade included 4 early maturity cultivars (‘Wakahikari’,‘Cuiguan’,‘Aikansui’ and ‘Kousui’),3 middle maturity cultivars (‘Saigyoku’,‘Akitsuki’ and ‘Housui’) and 1 later maturity cultivar (‘Qushuu’).【Conclusion】The recommended sand pear cultivars were ‘Wakahikari’,‘Cuiguan’,‘Aikansui’,‘Kousui’,‘Saigyoku’,‘Akitsuki’,‘Housui’and ‘Qushuu’in south Jiangsu,which would form a set of combinations from late July to early October. |
| Key words: Pyrus pyrifolia Nakai fruit quality fuzzy synthetic evaluation cultivars maturity |
