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绥江县不同产区半边红李果实品质与果园土壤理化性质的相关性分析

Correlation Analysis Between Fruit Quality of ‘Banbianhong’ Plum and Orchard Soil Physicochemical Properties in Different Production Areas of Suijiang County

  • 摘要: 以绥江县中城镇田坝村(TB)、中城镇良姜村(LJ)、南岸镇南岸村(NA)、新滩镇鲢鱼村(LY)产区的半边红李土壤及其果实为研究对象,比较土壤理化指标与果实品质指标的差异,分析果实品质指标与土壤理化指标的相关性,应用主成分分析法对果实品质进行综合评价。结果表明:4个产区土壤理化性质存在差异,NA产区土壤全钾(15.83 g/kg)、速效钾(83.73 mg/kg)含量最低,pH近中性(6.82);LJ产区全氮(2.11 g/kg)、碱解氮(271.93 mg/kg)含量最高,LY产区土壤pH偏酸性(4.32);果实品质方面,NA产区单果质量(38.75 g)、可溶性固形物(10.87 %)、可溶性糖含量(7.57 g/100g)、糖酸比(15.15)最高;LJ产区果实蛋白质(0.59 g/100g)、膳食纤维(3.78 g/100g)含量最高。土壤pH与单果质量、横径呈极显著正相关,与纵径、可滴定酸、膳食纤维呈显著正相关,土壤碱解氮与可食率呈显著负相关,全钾与可溶性糖呈显著负相关,速效钾与可溶性固形物呈极显著负相关。各产区果实品质综合得分排序为:NA(0.425)>LJ(0.281)>TB(−0.324)>LY(−0.382)。绥江县南岸镇南岸村产区的半边红李果实综合品质最佳,是绥江半边红李的优质产区,其土壤理化特征可为栽培优质半边红李提供参考。

     

    Abstract: To clarify the effects of soil physical and chemical properties in different producing areas on the fruit quality of Banbianhong plum, and to provide a scientific basis for orchard soil management and fruit quality improvement. Taking the soil and fruits of Banbianhong plum from Tianba Village (TB) in Zhongcheng Town, Liangjiang Village (LJ) in Zhongcheng Town, Nanan Village (NA) in Nanan Town, and Lianyu Village (LY) in Xintan Town of Suijiang County as research objects, the differences in soil physical and chemical indexes and fruit quality indexes were compared, the correlation between fruit quality indexes and soil physical and chemical indexes was analyzed, and principal component analysis (PCA) was used to comprehensively evaluate fruit quality. There were differences in soil physical and chemical properties among the four producing areas. The contents of total potassium (15.83 g/kg) and available potassium (83.73 mg/kg) in NA were the lowest, and the soil pH was nearly neutral (6.82); LJ had the highest contents of total nitrogen (2.11 g/kg) and alkaline-hydrolyzable nitrogen (271.93 mg/kg); the soil pH in LY was acidic (4.32). In terms of fruit quality, NA showed the highest single fruit weight (38.75 g), soluble solids (10.87%), soluble sugar content (7.57 g/100g), and sugar-acid ratio (15.15); LJ had the highest contents of fruit protein (0.59 g/100g) and dietary fiber (3.78 g/100g). Correlation analysis indicated that soil pH was extremely significantly positively correlated with single fruit weight and fruit transverse diameter (p<0.01), and significantly positively correlated with fruit longitudinal diameter, titratable acid, and dietary fiber (p<0.05). Soil alkaline-hydrolyzable nitrogen was significantly negatively correlated with edible rate, total potassium was significantly negatively correlated with soluble sugar, and available potassium was extremely significantly negatively correlated with soluble solids. The comprehensive scores of fruit quality in each producing area were ranked as follows: NA (0.425) > LJ (0.281) > TB (-0.324) > LY (-0.382). Comprehensive analysis showed that the comprehensive fruit quality of Banbianhong plum in Nan'an Village of Nan'an Town, Suijiang County was the best, making it a high-quality producing area of Suijiang Banbianhong plum. Its soil physical and chemical characteristics can provide a scientific basis for soil management in the high-quality cultivation of Banbianhong plum.

     

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