果树学报2025，Vol.42Issue(12)：2841-2853,13.DOI:10.13925/j.cnki.gsxb.20250040
授粉品种对玉露香梨果实品质的影响
Effects of pollination cultivars on fruit quality of Yuluxiang pear
摘要
Abstract
[Objective]The study aimed to investigate the effects of different pollination cultivars on the fruit quality of Yuluxiang pear(Pyrus bretschneideri Rehder)and identify suitable pollinizers for cultivation.[Methods]Eight years old Yuluxiang pear trees were used as test materials,the impacts of seven pollination cultivars on internal quality,external quality,and volatile compounds of the fruits were studied.Correlation analysis was performed on the measured indices,and principal component analysis(PCA)was applied for comprehensive evaluation.[Results]Different pollination cultivars had impact on the external fruit quality of Yuluxiang pear.Among them,fruits pollinated with Xueqing had the largest fruit length and single fruit weight,measuring 80.80 mm and 315.87 g,respectively.Al-though different pollination combinations affected the sugar-acid content of Yuluxiang fruits,they did not influence the solid-acid ratio.Different pollination cultivars also had a significant impact on the stone cell and lignin content of Yuluxiang fruits.Among these,the fruits resuited from pollination with Huangguan had the highest lignin and stone cell content,1.80％and 8.37％,respectively,while those from pollination with Xueqing had the lowest content,1.54％and 4.17％,respectively.The fruits from pollination with Xueqing had the highest a* redness and b* yellowness values,showing a higher degree of coloration compared with the fruits from other pollination cultivars.The fruits from pollination with Suli had lower values than those from other pollinater.The Yuluxiang fruits pollinated with Xueqing and Suli had higher fruit hue angle(h°)values(186.79 and 185.54,respectively),while thoae pollinated with Dunzili had the lowest value(176.62).The anthocyanin content of Yuluxiang pear fruits pollinated with Xueqing was highest(0.08 mg·kg-1),while thoase pollinated with Huangguan,Yali,and Dunzili had lower values(0.059 mg·kg-1,0.061 mg·kg-1,and 0.060 7 mg·kg-1,respectively).The vitamin C(VC)content of Yuluxiang pear fruits pollinated with Xueqing and Mianli was higher(0.32 mg·kg-1 and 0.29 mg·kg-1),significantly higher than that of other pollination treatments.A total of 23 volatile sub-stances were detected in the fruits of Yuluxiang pear pollinated with 7 different cultivars,among them the main volatile substances in Yuluxiang pear fruit were hexanal and m-xylene.Principal component analysis(PCA)was used to comprehensively evaluate 25 physiological indicators.The correlation anal-ysis results showed that the longitudinal diameter,transverse diameter,and single fruit weight were sig-nificantly and positively correlated with each other.Soluble solids showed a strong positive correlation with the color indices a* and b*.Lignin content was highly significantly positively correlated with stone cell content.The ratio of solid acids and starch content showed a significant negative correlation with the ester and olefin volatile substances.Through principal component analysis,5 principal compo-nents were extracted from the 25 quality indicators of the fruits pollinated with 7 pollination cultivars,with a cumulative variance contribution rate of 97.18％.[Conclusion]Through correlation analysis and principal component analysis,the core indicators for evaluating the fruit quality of Yuluxiang pear were selected,including fruit length and diameter,stone cells,lignin,color indicators,starch,and volatile compounds such as ketones and hydrocarbons.Xueqing could be used as the most suitable pollination variety for Yuluxiang pear in Hebei Province dut to beneficial effect on fruits.关键词
梨/授粉/果实品质/主成分分析Key words
Pear/Pollination/Fruit quality/Principal component analysis分类
农业科技引用本文复制引用
徐丽珊,李政红,刘盼,解静雯,黄祎然,许建锋,王芳芳,赵书岗..授粉品种对玉露香梨果实品质的影响[J].果树学报,2025,42(12):2841-2853,13.基金项目
河北省现代农业产业技术体系建设专项(HBCT2024170203) （HBCT2024170203）
新疆维吾尔自治区重点研发计划(2023B02019-2) （2023B02019-2）
